(syms_of_buffer): Add %z, %Z, %m and %& to the doc

[bpt/emacs.git] / src / ChangeLog

1999-11-22  Eli Zaretskii  <eliz@is.elta.co.il>

        * buffer.c (syms_of_buffer): Add %z, %Z, %m and %& to the doc
        string of mode-line-format.  Remove the obsolete %t.

1999-11-22  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (direct_output_for_insert): Increment glyph positions
        for glyphs from buffer text only.

        * emacs.c (gdb_valbits, gdb_gctypebits, gdb_emacs_intbits)
        (gdb_data_seg_bits): New variables.
        
        * lisp.h (enum gdb_lisp_params): Put in #if 0, since it doesn't
        work on systems not allowing enumerators > INT_MAX, and it
        won't work if EMACS_INT is long long.

1999-11-22  Paul Eggert  <eggert@twinsun.com>

        Port to SunOS 4.1.x again.  Help out with Alpha port.
        Rename messages-locale to system-messages-locale,
        and likewise for time-locale.
        
        * callproc.c (strerror): Remove decl.
        * fileio.c (strerror): Likewise.
        * process.c (strerror): Likewise.
        * emacs.c (strerror): Likewise.
        (Vsystem_messages_locale): Renamed from Vmessages_locale.
        All uses changed.
        (Vprevious_system_messages_locale): Likewise, from
        Vprevious_messages_locale.
        (Vsystem_time_locale): Likewise, from Vtime_locale.
        (Vprevious_system_time_locale): Likewise, from Vprevious_time_locale.
        (ABORT_RETURN_TYPE): New macro.
        (abort): Return type is now ABORT_RETURN_TYPE.
        (main): Always invoke init_signals, even if POSIX_SIGNALS is not
        defined.
        (syms_of_emacs): messages-locale -> system-messages-locale,
        previous-messages-locale -> previous-system-messages-locale,
        time-locale -> system-time-locale,
        previous-time-locale -> previous-system-time-locale.

        * gmalloc.c (PP, __ptr_t): Assume ANSI C if STDC_HEADERS is defined.
        (const): Do not define; that's config.h's job.
        (<limits.h>): Include if HAVE_LIMITS_H is defined.
        (CHAR_BIT): Move test for definedness outside of limits.h condition.
        (<stddef.h>): Include if STDC_HEADERS is defined.
        (FREE_RETURN_TYPE): New macro.
        (free): Return type is now FREE_RETURN_TYPE.

        * lisp.h (synchronize_system_time_locale): Renamed from
        synchronize_time_locale.  All uses changed.
        (synchronize_system_messages_locale): Likewise, from
        synchronize_messages_locale.

        * m/alpha.h (malloc, realloc, calloc): Remove decls;
        stdlib.h now does this.

        * process.c (sys_siglist): Remove.

        * s/sunos4-0.h (ABORT_RETURN_TYPE, FREE_RETURN_TYPE):
        New macros.

        * syntax.c (scan_sexps_forward): Use abort, not assert.

        * sysdep.c (my_sys_siglist): New var.
        (sys_siglist): New macro.  Remove old initialized vars of same name.
        (init_signals): Initialize sys_siglist.

        * xfns.c (abort): Remove decl; stdlib.h now does this.

1999-11-18  Dave Love  <fx@gnu.org>

        * filelock.c: Add forward declaration for get_boot_time_1.

        * dispnew.c (Finternal_show_cursor_p): Fix doc string.

1999-11-18  Gerd Moellmann  <gerd@gnu.org>

        * buffer.h (struct buffer_text): Add comment about moving
        buffer text if REL_ALLOC is defined.

1999-11-18  Kenichi Handa  <handa@etl.go.jp>

        * lisp.h (KEY_DESCRIPTION_SIZE): New macro.

        * keyboard.c (echo_char): Use KEY_DESCRIPTION_SIZE to check free
        memory for push_key_description.

        * keymap.c (Fsingle_key_description): Use KEY_DESCRIPTION_SIZE to
        allocate memory for push_key_description.
        (describe_buffer_bindings): Likewise.

1999-11-17  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (Fx_show_busy_cursor): Doc-fix.
        (Fx_hide_busy_cursor): Ditto.

1999-11-17  Marco Walther <walther@siemens-pyramid.com>

        * unexsni.c (unexec): Handle .rel.dyn section.

1999-11-16  Dave Love  <fx@gnu.org>

        * doc.c (Fdocumentation): Remove gcpro here too.

1999-11-16  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (command_loop_1): Remove no_redisplay.

1999-11-16  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * print.c (PRINTPREPARE): Don't call setup_echo_area_for_printing
        in noninteractive.

1999-11-14  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (ensure_echo_area_buffers): New.
        (with_echo_area_buffer): Use it.
        (setup_echo_area_for_printing): Ditto.

        * buffer.c (indicate-empty-lines): Doc-fix.

1999-11-12  Gerd Moellmann  <gerd@gnu.org>

        * term.c (term_init): If "op" isn't available, don't support color
        because we can't switch back to the default foreground and
        background.

        * doc.c (Fdocumentation_property): Remove GCPRO because
        Fsubstitute_command_keys gcpro's the string.

1999-11-12  Kenichi Handa  <handa@etl.go.jp>

        * editfns.c (Ftranslate_region): Check the buffer multibyteness.

1999-11-11  Gerd Moellmann  <gerd@gnu.org>

        * print.c, keymap.c, indent.c, insdel.c, keyboard.c, intervals.c,
        lread.c, textprop.c, undo.c, emacs.c, lisp.h, intervals.h,
        buffer.h, config.in, Makefile.in: Remove USE_TEXT_PROPERTIES.

1999-11-10  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (QCuser_data): Removed.
        (syms_of_xfns): Initialization of QCuser_data removed.
        (parse_image_spec): Don't handle :user-data specially.  Allow
        unknown keys.  Remove parameter ALLOW_OTHER_KEYS.
        (xbm_image_p, xbm_load, xpm_image_p, pbm_image_p, png_image_p)
        (tiff_image_p, jpeg_image_p, gif_image_p, gs_image_p): Call
        parse_image_spec accordingly.

1999-11-09  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * cmds.c (Fbeginning_of_line): Doc fix.
        (Fend_of_line): Doc fix.

        * editfns.c (Fline_beginning_position): If N is not 1,
        pass t to Fconstrain_to_field for ESCAPE-FROM-EDGE.

        * syntax.c (Fforward_word): Handle fields even if would have hit
        an edge of the buffer.  Return nil if affected by fields.

1999-11-09  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * editfns.c (preceding_pos): Function deleted.
        (text_property_stickiness): Decrement POS directly.
        Fix a confusion that used PT instead of POS.

        * editfns.c (find_field): Properly handle the case
        of a field boundary where `field' inherits from neither side.

        * editfns.c (Ffield_beginning, Ffield_end): Doc fixes.
        (Ferase_field, Ffield_string, Ffield_string_no_properties): Doc fixes.

1999-11-08  Gerd Moellmann  <gerd@gnu.org>

        * bytecode.c (Fbyte_code) <BinsertN, Bcall>: Do the
        BEFORE_POTENTIAL_GC before DISCARD.

1999-11-07  Gerd Moellmann  <gerd@gnu.org>

        * alloc.c (Fgarbage_collect): Call unmark_byte_stack.

        * lisp.h: Add prototype for unmark_byte_stack.

        * bytecode.c (mark_byte_stack): Use XMARKBIT and XMARK.
        (unmark_byte_stack): Renamed from relocate_byte_pcs.  Use
        XUNMARK.

        * xdisp.c (resize_mini_window): Fix computation of needed
        mini-window height.

        * alloc.c, buffer.c, editfns.c, xdisp.c: Remove conditional
        compilation on USE_TEXT_PROPERTIES.

        * Fbyte_code: Use block statements in cases and declare v1 and v2
        locally there.  Rearrange case statements so that thos most
        frequently executed come first.  Avoid goto's in frequently
        executed cases.

1999-11-05  Gerd Moellmann  <gerd@gnu.org>

        * bytecode.c (Fbyte_code): Use BEFORE_POTENTIAL_GC and
        AFTER_POTENTIAL_GC around internal_catch.

        * alloc.c (Fgarbage_collect): Call mark_byte_stack and
        relocate_byte_pcs.
        (init_alloc_once, init_alloc): Set byte_stack_list to null.

        * eval.c (struct catchtag): Add member byte_stack.
        (internal_catch, Fcondition_case, internal_condition_case)
        (internal_condition_case_1): Save value of byte_stack_list in
        catchtag.
        (unwind_to_catch): Restore byte_stack_list from catchtag.

        * lisp.h: Add prototypes for new functions in bytecode.c.
        Add extern declaration for byte_stack_list.

        * bytecode.c (struct byte_stack): New.
        (byte_stack_list, mark_byte_stack, relocate_byte_pcs): New
        (BEFORE_POTENTIAL_GC, AFTER_POTENTIAL_GC): New.
        (FETCH, PUSH, POP, DISCARD, TOP, MAYBE_GC): Rewritten.
        (HANDLE_RELOCATION): Removed.
        (Fbyte_code): Use byte_stack structures.

        * filelock.c (Ffile_locked_p): Make FILENAME a required argument.

        * buffer.c (syms_of_buffer): Extend documentation of
        mode-line-format.

1999-11-04  Gerd Moellmann  <gerd@gnu.org>

        * editfns.c (Fdelete_field): Renamed from Ferase_field.

        * minibuf.c (do_completion, Fminibuffer_complete_word): Use
        Ferase_field instead of Fdelete_field.

1999-11-03  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (Finternal_show_cursor): Change it to set the
        cursor on/off, not toggle its state.
        (Finternal_show_cursor_p): New.
        (syms_of_display): Defsubr Sinternal_show_cursor_p.

1999-11-03  Dave Love  <fx@gnu.org>

        * charset.c (split_non_ascii_string): Define return value.

1999-11-03  Gerd Moellmann  <gerd@gnu.org>

        * minibuf.c (string_to_object): New.
        (read_minibuf_noninteractive): New.
        (read_minibuf): Call read_minibuf_noninteractive if
        noninteractive.  Use string_to_object.

        * doc.c (Fdocumentation_property): Fix bug bypassing UNGCPRO.

1999-11-02  Dave Love  <fx@gnu.org>

        * gnu-linux.h: Use SIGCHLD, not SIGCLD (not in glibc 2.1).

        * process.c: Define _GNU_SOURCE before config.h to get strsignal
        declared with glibc2.

1999-11-02  Gerd Moellmann  <gerd@gnu.org>

        * lisp.h (QUIT): Give it statement form.

1999-11-02  Dave Love  <fx@gnu.org>

        * eval.c (init_eval): Conditionalize declaration of gcpro_level.

1999-11-02  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (QCuser_data): New.
        (syms_of_xfns): Initialize QCuser_data.
        (parse_image_spec): Ignore :user-data DATA properties.

        * xdisp.c (display_line): Set charpos of first glyph in blank
        lines not corresponding to any text to -1, even if no glyphs are
        filled in in that line.

1999-11-01  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (png_load) [PNG_READ_sRGB_SUPPORTED]: Put code using 
        png_get_sRGB in #ifdef.

        * dispnew.c (Finternal_show_cursor): Renamed from Fshow_cursor.
        (syms_of_display): Use the new name.

        * textprop.c (verify_interval_modification): Signal text-read-only
        instead of calling error.

        * data.c (Qtext_read_only): New built-in error.
        (syms_of_data): Initialize it.

        * lisp.h: Add extern declaration for Qtext_read_only.

        * syntax.c: Remove whitespace after open or in front of closing
        parentheses.

1999-11-01  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * Makefile.in (w16select.o, sound.o): Don't depend on lisp.h.

1999-10-31  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (resize_mini_window): Compute needed height differently.

        * fns.c (Flength): Unroll loop over lists.

        * xdisp.c (append_space): Return non-zero if space was appended.
        (display_line): Set charpos of first glyph to -1 only if that
        glyph is the space added by append_glyph.

1999-10-30  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * print.c (strout): Consider `noninteractive' and use stdout
        only when PRINTCHARFUN is t.

        * lisp.h (struct gcpro) [DEBUG_GCPRO]: New field `level'.
        (gcpro_level): Declare it extern.
        [DEBUG_GCPRO] (GCPRO1, GCPRO2, GCPRO3, GCPRO4, GCPRO5):
        Alternate definitions that set `level' and increment `gcpro_level'.
        [DEBUG_GCPRO] (UNGCPRO): Alternate definition that checks gcpro_level.

        * eval.c [DEBUG_GCPRO] (gcpro_level): New variable.
        (init_eval) [DEBUG_GCPRO]: Initialize it.
        (unwind_to_catch) [DEBUG_GCPRO]: Set gcpro_level
        from remaining gcprolist.

1999-10-29  Kenichi Handa  <handa@etl.go.jp>

        * coding.c (code_convert_region): Update `dst' correctly.

1999-10-28  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * regex.c (POP_FAILURE_POINT): Use failure_id.integer
        as arg to DEBUG_POP and DEBUG_PRINT.

1999-10-28  Gerd Moellmann  <gerd@gnu.org>

        * fns.c (Fmemq, Fassq, Frassq, assq_no_quit, Fassoc)
        (Frassoc): Rewritten.

1999-10-27  Noah Friedman  <friedman@splode.com>

        * s/gnu-linux.h [HAVE_DEV_PTMX]: Redefine FIRST_PTY_LETTER to 'z'.
        Define PTY_NAME_SPRINTF.
        Redefine PTY_TTY_NAME_SPRINTF.
        * config.in: Add undef for HAVE_DEV_PTMX.

1999-10-26  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * regex.c (POP_FAILURE_POINT): Use failure_id.integer
        as arg to DEBUG_POP and DEBUG_PRINT.

1999-10-27  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * data.c (Qad_activate_internal): Renamed from Qad_activate.
        (Ffset): Call Qad_activate_internal.
        (syms_of_data): Initialize Qad_activate_internal.

1999-10-27  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (echo_area_display) [HAVE_X_WINDOWS]: Do nothing if
        Vterminal_frame is selected and Vwindow_system is non-nil.

1999-10-26  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (echo_area_display): Put previous change in #if 0.

        * emacs.c (standard_args): Add `file' as synonym for `visit',
        `execute' as synonym for `eval'.
        (main): Add new options to usage message.

1999-10-25  Gerd Moellmann  <gerd@gnu.org>

        * data.c (Qhash_table): New.
        (Ftype_of): Return it for hash tables.
        (syms_of_data): Initialize Qhash_table.

1999-10-25  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * regex.c (POP_FAILURE_POINT): Extract failure_id as an integer.

1999-10-24  Ken Raeburn  <raeburn@raeburn.org>

        * alloc.c: Undef HIDE_LISP_IMPLEMENTATION before including
        lisp.h.

        * buffer.c (Fbuffer_list, Fget_file_buffer, get_truename_buffer,
        Fbuffer_local_variables, Fother_buffer, record_buffer,
        set_buffer_internal_1, Fbury_buffer, Fkill_all_local_variables,
        swap_out_buffer_local_variables, overlays_at, overlays_in,
        overlay_touches_p, overlay_strings, recenter_overlay_lists,
        fix_overlays_in_range, fix_overlays_before, Foverlay_get,
        Foverlay_put, report_overlay_modification, evaporate_overlays):
        Use XCAR, XCDR, and XFLOAT_DATA instead of explicit member
        references.
        * data.c (Fcar, Fcar_safe, Fcdr, Fcdr_safe, Fsetcar, Fsetcdr,
        swap_in_symval_forwarding, set_internal, default_value,
        Fset_default, Fmake_variable_buffer_local, Fmake_local_variable,
        Fmake_variable_frame_local, Flocal_variable_p,
        Flocal_variable_if_set_p, arithcompare, Fzerop, cons_to_long,
        Fnumber_to_string, float_arith_driver, Fadd1, Fsub1): Likewise.
        * dispnew.c (Fframe_or_buffer_changed_p): Likewise.
        * emacs.c (main): Likewise.
        * fontset.c (fs_load_font, fs_register_fontset,
        CACHED_FONTSET_NAME, CACHED_FONTSET_REGEX, Fquery_fontset,
        Fnew_fontset, Fset_fontset_font): Likewise.
        * frame.c (do_switch_frame, next_frame, prev_frame,
        other_visible_frames, Fdelete_frame, Fvisible_frame_list):
        Likewise.
        * keyboard.c (read_char, help_char_p, event_to_kboard,
        kbd_buffer_get_event, timer_start_idle, timer_check,
        make_lispy_event, apply_modifiers, reorder_modifiers,
        Fevent_convert_list, lucid_event_type_list_p, menu_bar_items,
        menu_bar_one_keymap, menu_item_eval_property_1, parse_menu_item,
        tool_bar_items, read_char_x_menu_prompt, read_key_sequence,
        Fcommand_execute, Fexecute_extended_command): Likewise.
        * minibuf.c (read_minibuf, get_minibuffer, Ftry_completion,
        Fall_completions): Likewise.
        * window.c (Fset_window_margins): Likewise.

        * callint.c (quotify_args): Don't explicitly use struct
        Lisp_Cons, use Lisp_Object and XCAR/XCDR instead.

        * s/netbsd.h (HAVE_GETLOADAVG): Define as 1.
        (UNEXEC, START_FILES, LIB_STANDARD, LIB_GCC): Define ELF versions,
        if __ELF__ is defined.

1999-10-24  Gerd Moellmann  <gerd@gnu.org>

        * window.c (Fnext_window): Add a QUIT in the loop.

1999-10-23  Gerd Moellmann  <gerd@gnu.org>

        * Makefile.in (bootstrap, bootstrap-emacs, bootstrap-temacs): 
        New targets.

1999-10-22  Dave Love  <fx@gnu.org>

        * emacs.c (main): Enable profiling conditional on __linux also.

1999-10-20  Gerd Moellmann  <gerd@gnu.org>

        * xrdb.c (x_load_resources): Set default resources for resource
        classes instead of for the specific Emacs.

1999-10-19  Gerd Moellmann  <gerd@gnu.org>

        * s/freebsd.h (HAVE_GETLOADAVG): Define as 1 because config.h
        defines it that way.
        
        * xdisp.c (echo_area_display) [HAVE_X_WINDOWS]: Do nothing
        if selected_frame is equal to Vterminal_frame.

1999-10-19  Paul Eggert  <eggert@twinsun.com>
        
        Add support for large files, 64-bit Solaris, system locale codings.
        
        * Makefile.in (emacs): Set the LC_ALL environment variable to "C"
        when dumping, so that the dumped Emacs doesn't have stray locale info.
        (dired.o): Depend on systime.h.
        (editfns.o): Depend on coding.h.

        * alloc.c, buffer.c, callproc.c, ccl.c, charset.c, coding.c, data.c,
        dispnew.c, editfns.c, emacs.c, filelock.c, floatfns.c, hftctl.c,
        keyboard.c, process.c, sysdep.c, unexelf.c, unexhp9k800.c,
        unexsunos4.c, vmsfns.c, vmsgmalloc.c, w32faces.c, w32menu.c, w32term.c,
        w32xfns.c, xfaces.c, xfns.c, xmenu.c, xterm.c:
        Include <config.h> before any system include files.

        * alloc.c, buffer.c, ccl.c, data.c, editfns.c, emacs.c, eval.c,
        fileio.c, filelock.c, frame.c, insdel.c, keymap.c, lread.c,
        m/alpha.h, print.c, search.c, sysdep.c, xdisp.c, xfaces.c, xfns.c,
        xmenu.c, xterm.c:
        Do not include <stdlib.h>, as <config.h> does this now.

        * callproc.c (Fcall_process):
        Synchronize messages locale before invoking strerror.
        Decode resulting string with locale-coding-system.

        * coding.c (Vlocale_coding_system): New var.
        (syms_of_coding): Adjust to above change.
        (emacs_strerror): New function.

        * coding.h (emacs_strerror, Vlocale_coding_system): New decls.
        
        * config.in (HAVE_STDIO_EXT_H, HAVE_TM_GMTOFF, HAVE___FPENDING,
        HAVE_FTELLO, HAVE_GETLOADAVG, HAVE_MBLEN, HAVE_MBRLEN,
        HAVE_STRSIGNAL): New macros.
        (BITS_PER_LONG): Default to 64 if _LP64 is defined.
        <stdlib.h>: Include if HAVE_STDLIB_H is defined and NOT_C_CODE isn't.

        * dired.c: Include "systime.h".
        (Ffile_attributes): Do not cast s.st_size to int; this loses
        information if int is 32 bits but st_size and EMACS_INT are larger.
        Treat large device numbers like large inode numbers.

        * dispnew.c (PENDING_OUTPUT_COUNT): Use __fpending if available.

        * editfns.c: Include coding.h.
        (emacs_strftime): Remove decl.
        (emacs_strftimeu): New decl.
        (emacs_memftimeu): Renamed from emacs_memftime; new arg UT.
        Use emacs_strftimeu instead of emacs_strftime.
        (Fformat_time_string): Convert format string using
        Vlocale_coding_system, and convert result back.  Synchronize time
        locale before invoking lower level function.  Invoke
        emacs_memftimeu, passing ut, instead of emacs_memftime.
        
        * emacs.c: Include <locale.h> if HAVE_SETLOCALE is defined.
        (Vmessages_locale, Vprevious_messages_locale, Vtime_locale,
        Vprevious_time_locale): New variables.
        (main): Invoke setlocale early, so that initial error messages are
        localized properly.  But skip locale-setting if LC_ALL is "C".
        Fix up locale when it's safe to do so.
        (fixup_locale): Moved here from xterm.c.
        (synchronize_locale, synchronize_time_locale,
        synchronize_messages_locale): New functions.
        (syms_of_emacs): Accommodate above changes.

        * fileio.c (report_file_error): Convert strerror output according
        to Vlocale_coding_system.
        (Finsert_file_contents): Check for arithmetic overflow in
        computations that depend on file size.  Report IO errors
        with emacs_strerror, not strerror.

        * fns.c (Fgethash): Declare dflt parameter.

        * gmalloc.c: Do not define const to nothing if HAVE_CONFIG_H
        is defined; that's config.h's job.

        * lisp.h (EMACS_INT, BITS_PER_EMACS_INT, EMACS_UINT): If _LP64,
        default these values to long, BITS_PER_LONG, and unsigned long.
        (VALBITS, MARKBIT, XINT): Do not assume 32-bit EMACS_INT.
        (PNTR_COMPARISON_TYPE): Default to EMACS_UINT, not to unsigned int.
        (code_convert_string_norecord, fixup_locale,
        synchronize_messages_locale, synchronize_time_locale,
        emacs_open, emacs_close, emacs_read, emacs_write): New decls.
        All Emacs callers of open, close, read, write changed to use
        emacs_open, emacs_close, emacs_read, emacs_write.

        * lread.c (file_offset, file_tell): New macros.  All uses of ftell
        changed to file_tell.
        (saved_doc_string_position, prev_saved_doc_string_position): Now
        of type file_offset.
        (init_lread): Do not fix locale here; fixup_locale now does this.

        * m/amdahl.h, s/usg5-4.h:
        (NSIG): Remove.
        (NSIG_MINIMUM): New macro.

        * m/cydra5.h, m/dpx2.h, m/mips.h, m/pfa50.h, m/sps7.h, m/stride.h,
        m/ustation.h, s/gnu-linux.h, s/hpux.h, s/iris3-5.h, s/iris3-6.h,
        s/umips.h, s/usg5-4.h:
        (SIGIO): Do not undef.
        (BROKEN_SIGIO): New macro.

        * m/ustation.h:
        (SIGTSTP): Do not undef.
        (BROKEN_SIGTSTP): New macro.

        * s/gnu-linux.h:
        (SIGPOLL, SIGURG): Do not undef.
        (BROKEN_SIGPOLL, BROKEN_SIGURG): New macros.

        * s/ptx4.h:
        (SIGINFO): Do not undef.
        (BROKEN_SIGINFO): New macros.
        
        * m/delta.h, s/ptx.h, s/template.h: Doc fix.

        * mktime.c, strftime.c: Update to glibc 2.1.2 version, with
        some Emacs-related changes merged.

        * print.c (float_to_string): Prepend "-" to representation of a
        NaN if the NaN is negative.

        * process.c (sys_siglist): Omit if HAVE_STRSIGNAL.
        (wait_reading_process_input): Use emacs_strerror, not strerror.
        
        * process.c (status_message, sigchld_handler): Synchronize locale,
        then use strsignal istead of sys_siglist.
        * w32proc.c (sys_wait): Likewise.
        
        * s/aix3-1.h, s/bsd4-1.h, s/dgux.h, s/gnu-linux.h, s/hiuxmpp.h,
        s/hpux.h, s/iris3-5.h, s/iris3-6.h, s/irix3-3.h, s/osf1.h, s/rtu.h,
        s/sunos4-1.h, s/unipl5-0.h, s/unipl5-2.h, s/usg5-0.h, s/usg5-2-2.h,
        s/usg5-2.h, s/usg5-3.h, s/xenix.h:
        (open, close, read, write, INTERRUPTIBLE_OPEN,
        INTERRUPTIBLE_CLOSE, INTERRUPTIBLE_IO): Remove.

        * s/sol2-5.h (_LARGEFILE_SOURCE, _FILE_OFFSET_BITS): New macros.

        * sysdep.c (sys_read, sys_write, read, write, sys_close, close,
        sys_open, open): Remove.
        (emacs_open, emacs_close, emacs_read, emacs_write): Always define;
        the old INTERRUPTIBLE_OPEN, INTERRUPTIBLE_CLOSE, and INTERRUPTIBLE_IO
        macros are no longer used.
        (emacs_open): Renamed from sys_open.  Merge BSD4_1 version.
        (emacs_close): Renamed from sys_close.
        (emacs_read): Renamed from sys_read.
        (emacs_write): Renamed from sys_write.
        (sys_siglist): Do not declare if HAVE_STRSIGNAL.
        (dup2): Do not print error on failure; the real dup2 doesn't.
        (strsignal): New function, defined if !HAVE_STRSIGNAL.

        * syssignal.h (SIGINFO): Undef if defined and if BROKEN_SIGINFO
        is defined.
        (SIGIO, SIGPOLL, SIGTSTP, SIGURG): Likewise.
        (NSIG): If less than NSIG_MINIMUM, define to NSIG_MINIMUM.
        (strsignal): Declare if !HAVE_STRSIGNAL.

        * unexelf.c (ElfBitsW, ELFSIZE, ElfExpandBitsW): New macros.
        (ElfW): Define in terms of ElfExpandBitsW.

        * w32proc.c (sys_siglist): Remove decl.

        * xdisp.c (decode_mode_spec): 3rd arg is int, not char, to comply
        with ANSI C.
        (display_string): Declare face_string_pos arg.

        * xfns.c (Fx_show_tip): Declare timeout param.

        * xterm.c: No need to include locale.h.
        (x_alloc_lighter_color, x_setup_relief_color):
        Pass arg as double, not float, for compatibility with ANSI C.
        (fixup_locale): Move to emacs.c.
        (x_term_init): Do not setlocale or fixup locale; the main program
        does this now.

1999-10-18  Dave Love  <fx@gnu.org>

        * doc.c (Fdocumentation_property): Gcpro `tem'.

1999-10-18  Kenichi Handa  <handa@etl.go.jp>

        * lread.c (Fload): Calculate bytes of filename correctly.
        (openp): Likewise.

1999-10-18  Keisuke Nishida  <kxn30@po.cwru.edu>

        * print.c (print_preprocess): In case print-circle is nil,
        add OBJ to Vprint_number_table only when OBJ is a symbol.

1999-10-18  Kenichi Handa  <handa@etl.go.jp>

        * coding.c (code_convert_string): Add record_unwind_protect to
        assure setting inhibit_pre_post_conversion back to zero.  Take
        care of the multibyteness of the working buffer.

        * coding.c (inhibit_pre_post_conversion): New variable.
        (setup_coding_system): If inhibit_pre_post_conversion is nonzero,
        ignore post-read-conversion and pre-write-conversion property of
        the coding system.
        (code_convert_region_unwind): New function.
        (code_convert_region): Set inhibit_pre_post_conversion to 1 while
        running pre-write-conversion and post-read-conversion.
        (code_convert_string): Likewise.

1999-10-17  Miles Bader  <miles@gnu.org>

        * editfns.c: Doc fix.

1999-10-17  Miles Bader  <miles@gnu.org>

        * editfns.c (Fconstrain_to_field): Make sure we don't violate the
        argument preconditions of find_before_next_newline in the case
        where both ONLY_IN_LINE and ESCAPE_FROM_EDGE are set and OLD_POS
        was indeed at the edge.

1999-10-17  Miles Bader  <miles@gnu.org>

        * minibuf.c (Fminibuffer_complete_and_exit): Supply value for new
        ESCAPE_FROM_EDGE parameter to Ffield_beginning.

        * editfns.c (text_property_eq, text_property_stickiness): Don't
        use initializers for auto variables of type Lisp_Object.
        (find_field): Likewise.  Use braces around nested ifs.
        (Fline_end_position): Store the raw eol in a variable, so that the
        final expression doesn't look so ugly.
        (Fconstrain_to_field): Doc fix.
        (preceding_pos): Renamed from `preceeding_pos'.
        (text_property_stickiness, find_field): Call preceding_pos,
        not preceeding_pos.

1999-10-17  Miles Bader  <miles@gnu.org>

        * editfns.c (Ffield_string_no_properties): New function.
        (text_property_stickiness, preceeding_pos): New functions.
        (Ffield_string): Remove PROPS parameter.
        (find_field): Add MERGE_AT_BOUNDARY parameter.
        Rewrite to use stickiness of `field' property to resolve
        ambiguous cases.
        (Ffield_beginning, Ffield_end): Add ESCAPE_FROM_EDGE parameter.
        (Fconstrain_to_field): Likewise.
        (syms_of_editfns): Init Sfield_string_no_properties.
        (Ffield_string, Ferase_field, Ffield_end): 
        Supply new MERGE_AT_BOUNDARY argument to find_field.
        (Fline_beginning_position, Fline_end_position): Supply new
        ESCAPE_FROM_EDGE parameter to Fconstrain_to_field.
        Pass a value of Qt for the ONLY_IN_LINE argument to
        Fconstrain_to_field (only matters if N != 1).
        * syntax.c (Fforward_word): Supply new ESCAPE_FROM_EDGE parameter
        to Fconstrain_to_field.

        * minibuf.c (Fminibuffer_complete_word): Use
        Ffield_beginning to find the prompt end.

1999-10-17  Miles Bader  <miles@gnu.org>

        * editfns.c (Fconstrain_to_field): Add get/set-current-point
        behavior when NEW_POS is nil.
        (find_field): Use XSETFASTINT instead of make_number.
        * minibuf.c (Fminibuffer_complete_and_exit): Test for an empty
        input string by seeing where the field begins, instead of
        looking at text-properties.

1999-10-17  Miles Bader  <miles@gnu.org>

        * editfns.c (Qfield): New variable.
        (find_field, Ferase_field, Ffield_string,
        Ffield_beginning, Ffield_end, Fconstrain_to_field): New functions.
        (Fline_beginning_position, Fline_end_position): Constrain to any field.
        (make_buffer_string_both): Remove minibuffer-prompt hack.
        (syms_of_editfns): Initialize Qfield, and subr entries for
        field functions above.
        * minibuf.c (read_minibuf): Don't save minibuffer prompt length on
        minibuf_save_list.
        Don't initialize minibuffer prompt length.
        Wrap prompt text-properties around the entire prompt.
        Add 'prompt text-property to prompt.
        Get final value with Ffield_string instead of make_buffer_string.
        (read_minibuf_unwind): Don't restore minibuffer prompt length from
        minibuf_save_list.
        (do_completion): Get minibuffer input with Ffield_string
        instead of Fbuffer_string.
        Erase minibuffer input with Ferase_field instead of erase_buffer.
        (Fminibuffer_complete_and_exit): Likewise.
        Test whether buffer is empty by looking for the 'prompt text
        property at the end.
        Set prompt length by looking for the end of the prompt text property,
        and save prompt length for later use (since there is no longer a
        buffer variable to get it from).
        (Fminibuffer_prompt_width, Fminibuffer_prompt_end): Functions removed.
        (syms_of_minibuf): Remove initializations of
        Sminibuffer_prompt_width and Sminibuffer_prompt_end.
        * buffer.h (struct buffer): Remove prompt_end_charpos field.
        * buffer.c (Fget_buffer_create, Fmake_indirect_buffer, Fkill_buffer): 
        Don't initialize prompt_end_charpos field.
        * syntax.c (Fforward_word): Likewise.
        Constrain to any field.

1999-10-16  Gerd Moellmann  <gerd@gnu.org>

        * window.c (enum save_restore_action): New.
        (save_restore_orig_size): Change parameter list.  Add
        functionality to check for valid orig_top and orig_height members
        in a window tree.
        (grow_mini_window): Call save_restore_orig_size with new parameter
        list.
        (shrink_mini_window): Restore old window sizes only if old
        size information is valid in all windows in a window tree.
        
1999-10-15  Gerd Moellmann  <gerd@gnu.org>

        * xmenu.c (set_frame_menubar): Don't call
        x_set_menu_resources_from_menu_face here.
        (update_frame_menubar): Call x_set_menu_resources_from_menu_face.

        * xfns.c (gif_load): Fix handling of interlaced GIFs.

1999-10-14  Dave Love  <fx@gnu.org>

        * xdisp.c (handle_fontified_prop): GCPRO `pos'.

1999-10-14  Gerd Moellmann  <gerd@gnu.org>

        * process.c (Fopen_network_stream): Don't loop if gethostbyname
        fails and h_errno is TRY_AGAIN.

1999-10-13  Dave Love  <fx@gnu.org>

        * filelock.c (lock_file): Move gcpro of `fn'.

1999-10-10  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (auto-save-interval): Fix documentation.
        
1999-10-09  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * print.c (print): When removing objects from Vprint_number_table,
        only scan the newly added objects.
        (print_preprocess): If OBJ is a gensym, and print-continuous-numbering,
        unconditionally force it to stay in the table.

1999-10-09  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (prepare_image_for_display): Don't try to load image if
        loading it failed before.
        (lookup_image, prepare_image_for_display): Remember if loading the
        image failed.
        (xpm_load): Add missing UNBLOCK_INPUT.

        * dispextern.h (struct image): New member load_failed_p.

1999-10-08  Stefan Monnier  <monnier@cs.yale.edu>

        * fileio.c (Fmake_temp_name): add a reference to `make-temp-file'
        in the docstring.

1999-10-08  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (XTread_socket) <ClientMessage, WM_TAKE_FOCUS>:
        Don't call XSetInputFocus because that can generate additional
        FocusIn events.
        
1999-10-07  Jeffrey C Honig <jch@bsdi.com>

        * bsdos4.h [HAVE_LIBNCURSES]: Define TERMINFO and LIBS_TERMCAP.

1999-10-07  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * process.c (wait_reading_process_input): When trying to suck
        input from one process, for accept-process-output,
        exit that loop if we get EAGAIN or EWOULDBLOCK.

1999-10-07  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Qbitmap_spec_p): Replaces Qpixmap_spec_p.
        (Fbitmap_spec_p): Replaces Fpixmap_spec_p.
        (load_pixmap): Use Fbitmap_spec_p and Qbitmap_spec_p instead of
        Fpixmap_spec_p and Qpixmap_spec_p.
        (load_face_colors, check_lface_attrs,
        merge_face_vector_with_property,
        Finternal_set_lisp_face_attribute): Use Fbitmap_spec_p.
        (syms_of_xfaces): Initialize Qbitmap_spec_p, defsubr
        Fbitmap_spec_p.

1999-10-07  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (display_menu_bar): Use MENU_FACE_ID instead of
        MODE_LINE_FACE_ID.

        * xfaces.c (toplevel) [USE_MOTIF]: Include some Motif headers.
        (struct x_resources) [USE_X_TOOLKIT]: New.
        (xm_apply_resources, xm_set_menu_resources_from_menu_face)
        [USE_MOTIF]: New.
        (xl_apply_resources, xl_set_menu_resources_from_menu_face)
        [USE_LUCID]: New.
        (x_set_menu_resources_from_menu_face) [USE_X_TOOLKIT]: New.
        (Qmenu): New.
        (syms_of_xfaces): Initialize Qmenu.
        (realize_basic_faces): Realize face `menu'.
        (resolve_face_name): New.
        (lface_from_face_name): Use it.
        (Finternal_set_lisp_face_attribute): Ditto.
        (Fpixmap_spec_p): Rewritten.  Extend doc string.

        * xmenu.c (set_frame_menubar, xmenu_show): Call
        x_set_menu_resources_from_menu_face.

        * dispextern.h (enum face_id): Add MENU_FACE_ID.
        (toplevel): Include X11/Intrinsic.h.

1999-10-03  Ken'ichi Handa  <handa@gnu.org>

        * coding.c (DECODE_CHARACTER_ASCII): Decode ASCII invocated to GR
        correctly.

1999-09-30  Kenichi Handa  <handa@etl.go.jp>

        * category.c (modify_lower_category_set): Set default value of
        TABLE correctly.

        * minibuf.c (Fminibuffer_complete_word): Calculate string byte
        size correctly.

1999-09-29  Gerd Moellmann  <gerd@gnu.org>

        * editfns.c (Fpropertize): Renamed from Fproperties.

1999-09-29  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (resize_mini_window): Do nothing if frame is an X
        frame that hasn't been initialized yet.

1999-09-28  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * keymap.c (Fsingle_key_description): Make tem big enough.
        (describe_buffer_bindings): Make buf big enough.

1999-09-27  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * intervals.c (get_local_map): Use indirect_function,
        not Findirect_function.

1999-09-27  Dave Love  <fx@gnu.org>

        * cm.h: Remove unneeded declaration of ospeed.

1999-09-26  Gerd Moellmann  <gerd@gnu.org>

        * lisp.h (toplevel): Add prototype for
        next_single_char_property_change.

        * textprop.c (next_single_char_property_change): New.

        * xdisp.c (display_prop_end, invisible_text_between_p): Use
        next_single_char_property_change.

1999-09-25  Gerd Moellmann  <gerd@gnu.org>

        * editfns.c (Fproperties): New.
        (syms_of_editfns): Defsubr it.

        * xfns.c (lookup_image): Set image's timestamp because it's
        used when we look it up.

1999-09-23  Gerd Moellmann  <gerd@gnu.org>

        * window.c (enlarge_window): Add window parameter instead of using
        selected_window.
        (Fdisplay_buffer): Call it with window parameter instead of
        setting selected_window.
        (Fenlarge_window, Fshrink_window): Ditto.
        (shrink_mini_window): If there is no recorded height and position
        info, resize mini-window to height 1.

        * xfns.c (image_error): Use add_to_log.

        * xfaces.c (load_pixmap): Call add_to_log without frame parameter.
        (load_face_font_or_fontset, load_color,
        merge_face_vector_with_property): Ditto.

        * dispextern.h: Add prototype for add_to_log.

        * xfaces.c (add_to_log): Move to xdisp.c.

        * xdisp.c (add_to_log): Moved from xfaces.c.  Remove frame
        parameter.

1999-09-23  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (XTread_socket) <MotionNotify>: Change #ifdef
        USE_X_TOOLKIT to #ifdef USE_TOOLKIT_SCROLL_BARS.

        * xdisp.c (resize_mini_window): Use grow_mini_window and
        shrink_mini_window.

        * window.c (window_min_size): Add parameter ignore_fixed_p.
        (change_window_height): Call window_min_size with new parameter.
        (shrink_window_lowest_first, save_restore_orig_size,
        grow_mini_window, shrink_mini_window): New.
        (make_window, replace_window): Initialize orig_top and
        orig_height.
        (enlarge_window): Renamed from change_window_height.  Make it
        static.
        (Fdisplay_buffer, Fenlage_window, Fshrink_window): Call
        enlarge_window instead of change_window_height.

        * window.h (struct window): New members orig_top, orig_height.
        (toplevel): Add prototypes for grow_mini_window and
        shrink_mini_window.  Remove prototype for change_window_height.

1999-09-21  Eli Zaretskii  <eliz@gnu.org>

        * frame.c (frame_name_fnn_p): Fix previous change.

1999-09-20  Gerd Moellmann  <gerd@gnu.org>

        * minibuf.c (toplevel): Move include of stdio.h to other includes.

        * dispnew.c (direct_output_for_insert): Cast arguments to
        safe_bcopy to char *.

        * lread.c (readchar): Remove unused variables.
        (read_filtered_event, read1, Fmapatoms): Ditto.
        (toplevel): Include intervals.h.

        * eval.c (Fsignal): Remove unused variables.
        (Fcommandp, do_autoload): Ditto.

        * lisp.h: Add prototype for safe_bcopy, fatal.

        * editfns.c (init_editfns): Remove unused variables.
        (Fgoto_char, Fchar_after, Fformat): Ditto.
        (message_text, message_length): Put in #ifndef HAVE_MENUS.

        * data.c (find_symbol_value): Remove unused variables.
        (Faref, Fstring_to_number): Ditto.
        (toplevel): Include stdio.h.
        (Fnumber_to_string): Cast XINT to long for %ld.

        * casefiddle.c (casify_object): Remove unused variables.
        (casify_region): Ditto.

        * filelock.c (get_boot_time): Put local variable used in 
        conditinally compiled section in #ifdef.
        (toplevel): Include stdio.h.

        * keymap.c (Flookup_key, Faccessible_keymaps, describe_vector,
        keys_of_keymap, syms_of_keymap): Remove unused variables.

1999-09-20  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (sync_frame_with_window_matrix_rows): Disable frame rows
        whose corresponding window rows have been disabled in
        try_window_id.

1999-09-20  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (compute_window_start_on_continuation_line): Handle case
        that window start is out of range.
        (handle_display_prop, handle_single_display_prop): Replace
        marginal area specifications like `left-margin' with `(margin
        left-margin)'.
        (Qmargin): New.
        (syms_of_xdisp): Initialize Qmargin.

1999-09-19  Gerd Moellmann  <gerd@gnu.org>

        * syntax.c (update_syntax_table, find_defun_start, back_comment,
        describe_syntax, skip_chars): Remove unused variables.
        (back_comment, forw_comment): Add braces to if-statement with
        if-else as dependent statement.

        * process.c (list_processes_1): Remove unused variables.
        (Fopen_network_stream, create_process): Add parentheses to
        conditional expressions.
        (create_process): Put declaration of sigchld in #if 0.
        (Fopen_network_stream): Removed unused variables.
        (Fopen_network_stream, wait_reading_process_input,
        wait_reading_process_input, send_process, send_process): Ditto.
        (toplevel): Add prototypes for set_waiting_for_input and
        keyboard_bit_set.

        * abbrev.c (Fexpand_abbrev): Remove unused variables.

        * textprop.c (Fset_text_properties): Remove unused variables.
        (text_property_list, verify_interval_modification,
        interval_has_all_properties): Ditto.

        * callproc.c (toplevel) [HAVE_UNISTD_H]: Include unistd.h.
        (Fcall_process): Remove unused variable.

        * keyboard.c (Frecursive_edit): Remove unused variable.
        (command_loop_1, safe_run_hooks, kbd_buffer_get_event,
        timer_check, make_lispy_event, menu_bar_items,
        menu_bar_one_keymap, menu_bar_item, parse_menu_item,
        parse_tool_bar_item, read_char_x_menu_prompt, read_key_sequence,
        kbd_buffer_get_event, make_lispy_event, read_char_x_menu_prompt,
        read_key_sequence): Ditto.  Fread_key_sequence,
        Fread_key_sequence_vector, Fsuspend_emacs): Ditto.
        (read_key_sequence) [GOBBLE_FIRST_EVENT]: Put local variables only
        used when GOBBLE_FIRST_EVENT is defined in #ifdef
        (Fexecute_extended_command): Cast XINT to long for %ld.
        (toplevel) [HAVE_UNISTD_H]: Include unistd.h.
        (toplevel): Include sys/types.h.

        * lisp.h (RETURN_UNGCPRO): Use do-while (0) idiom.
        (toplevel): Add prototypes for stuff_char, and
        code_convert_string_norecord.

1999-09-19  Gerd Moellmann  <gerd@gnu.org>

        * buffer.h: Add prototype for r_re_alloc.

        * insdel.c (copy_text): Removed unused variables.
        (count_combining_after, count_combining_after, insert_1_both,
        insert_from_string_1, insert_from_buffer_1, check_markers): Ditto.
        (adjust_after_replace, replace_range): Add parentheses to logical
        expressions.  Remove unused variables.
        (CHECK_BYTE_COMBINING_FOR_INSERT): Add parentheses to logical
        expression.

        * alloc.c (Fgarbage_collect): Remove unused variable.
        (compact_strings): Add parentheses around assignments in
        conditional context.
        (toplevel): Put declaration of unused function clear_marks
        in #if 0 like its definition.

        * lisp.h: Add prototype for shrink_regexp_cache,
        sweep_weak_hash_tables.

1999-09-19  Dave Love  <fx@gnu.org>

        * process.c (Fopen_network_stream): Use strerror, not gai_strerror.

        * doc.c (read_bytecode_char): Declare arg.

        * lisp.h: Declare Fcurrent_message, Fmake_temp_name,
        read_bytecode_char, Fx_hide_busy_cursor, getloadavg.

1999-09-18  Richard Stallman  <rms@gnu.org>

        * xdisp.c (echo_area_display): Turn off code that returned
        without doing anything when using a terminal frame.

1999-09-17  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * unexelf.c (unexec): Don't get confused by a short section
        just before the bss section.

1999-09-16  Gerd Moellmann  <gerd@gnu.org>

        * emacs.c (main): Remove unused variables.
        (sort_args, Fkill_emacs, Fkill_emacs): Ditto.

        * lisp.h: Add prototype for uninterrupt_malloc, memory_warnings,
        init_fileio_once, syms_of_sound, init_xfns, init_fns
        init_sound, check_message_stack.

        * emacs.c (toplevel) [HAVE_UNISTD_H]: Include unistd.h.

        * intervals.c (rotate_right, rotate_left): Add braces to avoid
        ambiguous else warning.
        (split_interval_left): Remove unused variables.
        (previous_interval, adjust_intervals_for_deletion,
        set_point_both, set_point_both, set_intervals_multibyte_1): Ditto.
        (icount, idepth, zero_length): Move into #if 0 section below
        original position where these are used.

        * buffer.h [REL_ALLOC]: Add prototypes for r_alloc and r_alloc_free.

        * buffer.c (Fkill_buffer): Remove unused variables.
        (Fkill_buffer, overlays_at, overlays_in, recenter_overlay_lists,
        fix_overlays_in_range, Fmove_overlay, Fprevious_overlay_change,
        init_buffer_once, (syms_of_buffer): Ditto.

        * xrdb.c (get_fallback): Remove unused variable.
        (x_load_resources): Ditto.  Put local variable used for Motif only
        in #ifdef USE_MOTIF.

1999-09-16  Gerd Moellmann  <gerd@gnu.org>

        * minibuf.c (read_minibuf): Remove unused variables.
        (read_minibuf, Fread_buffer, scmp, Fcompleting_read): Ditto.
        (do_completion): Move assignment out of conditional context.
        (Fdisplay_completion_list): Add parentheses to conditional expression.

        * cm.c (toplevel) [HAVE_TERMCAP_H]: Include termcap.h.

        * lisp.h: Add prototype for no_switch_window.

        * window.c (Fset_window_buffer): Remove unused variables.
        (Fset_window_margins): Ditto.

        * xdisp.c (resize_mini_window): Temporarily set the selected
        window's or Vminibuf_scroll_window's height to "fixed" around
        the call the change_window_height.

        * window.c (window_fixed_size_p): Check window's height_fixed_p
        flag.

        * window.h (struct window): New member height_fixed_p.

        * dispnew.c (direct_output_forward_char): Don't use this method
        if showing a message or a message was just cleared because we
        might need to resize the mini-window.

1999-09-16  Gerd Moellmann  <gerd@gnu.org>

        * frame.c (Fdelete_frame): Correct local variable pointing to
        selected frame after selecting new frame.

1999-09-15  Richard Stallman  <rms@gnu.org>

        * puresize.h (BASE_PURESIZE): Increase to 525000.

        * filelock.c (Vtemporary_file_directory): New variable.
        (syms_of_filelock): Set up Lisp variable.

1999-09-15  Gerd Moellmann  <gerd@gnu.org>

        * term.c (OUTPUT_IF, OUTPUT1_IF): Use do-while.
        (encode_terminal_code): Remove unused variables.
        (turn_off_face): Ditto.
        (toplevel): Include termcap.h if HAVE_TERMCAP_H.

        * dispnew.c (update_frame_line): If writing whole desired line,
        don't clear to end of line if already at the end.

1999-09-15  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (resize_mini_window): Don't report changed window
        height if it actually hasn't changed.

        * widget.c (set_frame_size, EmacsFrameSetCharSize):  Remove 
        unused variables.
        (mark_shell_size_user_specified): Put in #if 0 because not used.
        (create_frame_gcs): Put in #if 0 because currently unused.
        (first_frame_p): Ditto.

        * xmenu.c (single_menu_item, Fx_popup_menu, Fx_popup_menu,
        single_submenu, update_frame_menubar, set_frame_menubar,
        free_frame_menubar, xmenu_show, xdialog_show): Remove unused
        variables.

        * print.c (PRINTFULLP): Removed because it is no longer used and
        is misleading.
        (Ferror_message_string): Remove unused variables.
        (print_object): Cast argument of sprintf to long for `%ld'
        specifier.  Remove unused variable.

1999-09-14  Gerd Moellmann  <gerd@gnu.org>

        * sound.c (Fplay_sound): Remove usused variables.
        (be2hs): Put in #if 0 because it's currently not used.

1999-09-14  Ken Raeburn  <raeburn@gnu.org>

        * print.c (Ferror_message_string, print_error_message,
        print_object): Use XCAR, XCDR and XFLOAT_DATA instead of explicit
        member access.

1999-09-14  Gerd Moellmann  <gerd@gnu.org>

        * frame.h (CHECK_FRAME, CHECK_LIVE_FRAME): Put code in do-while.

        * frame.c (Fnext_frame): Remove unused variable(s).
        (Fprevious_frame, Fmouse_pixel_position, frame_name_fnn_p): Ditto.
        (store_frame_param): Add parentheses to conditional expression.
        (Fmodify_frame_parameters): Remove unused variables.
        (Fmodify_frame_parameters, Fset_frame_size, Fset_frame_position):
        Ditto.

        * xfns.c (x_set_background_color): Remove unused variable(s).
        (x_set_border_pixel): Ditto.
        (x_set_menu_bar_lines): Put local variable used only for
        non-toolkit case in #ifdef/#endif.
        (x_figure_window_size): Remove unused variable(s).
        (x_figure_window_size, x_window, lookup_image, 
        xbm_read_bitmap_file_data, x_build_heuristic_mask, pbm_load,
        png_load, jpeg_load, gif_load, x_create_tip_frame,
        x_create_tip_frame, Fx_show_tip, x_set_border_pixel): Ditto.

        * xterm.c (x_scroll_bar_handle_click): Compile only if
        not USE_TOOLKIT_SCROLL_BARS.
        (x_scroll_bar_set_handle, x_scroll_bar_note_movement): Ditto.

        * dispextern.h: Add prototypes for gamma_correct and
        x_kill_gs_process.

        * xterm.c (x_produce_glyphs): Remove unused variable(s).
        (x_alloc_nearest_color_for_widget, note_tool_bar_highlight,
        x_set_toolkit_scroll_bar_thumb): Ditto.
        (x_scroll_bar_create): Move local variable to the
        conditionally compiled section of code where it is used.
        (x_scroll_bar_create): Remove unused variable(s).
        (x_scroll_bar_remove, XTread_socket): Ditto.
        (XTread_socket) <ConfigureNotify>: Move variables used for
        non-toolkit case into conditionally compiled section of code.

        * window.h (freeze_window_starts): Fix typo in prototype.

        * xdisp.c (display_echo_area_1, try_window_id): Remove unused
        variable(s).

        * lisp.h: Add prototype for debug_print.

        * dispextern.h (xassert) [GLYPH_DEBUG]: Change definition
        to use do-while.

        * fns.c (SXHASH_COMBINE): Add missing parentheses.
        (Fchar_table_range, Fset_char_table_default, mapcar1,
        Fyes_or_no_p, sweep_weak_hash_tables): Remove unused variable(s).

        * lisp.h: Add prototype for getloadavg.

1999-09-14  Andreas Schwab  <schwab@gnu.org>

        * process.c (Fopen_network_stream): Avoid socket decriptor leak.

        * lisp.h: Declare close_file_unwind.

1999-09-14  Richard Stallman  <rms@gnu.org>

        * filelock.c (get_boot_time): Make the temp name in the proper dir.

1999-09-13  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (redisplay_window): Make sure start_at_line_beg
        is always set correctly.

1999-09-13  Dave Love  <fx@gnu.org>

        * xdisp.c (move_it_in_display_line_to): Make type consistent with
        declaration.

1999-09-13  Gerd Moellmann  <gerd@delysid.gnu.org>

        * xdisp.c (QCfile): Move here from xfns.c.
        (syms_of_xdisp): Initialize it.
        (message2_nolog): Change for Lisp_Object selected_frame.
        (message3_nolog, message_with_string, message,
        setup_echo_area_for_printing, truncate_echo_area,
        prepare_menu_bars, redisplay_internal, Fdump_tool_bar_row): Ditto.

1999-09-13  Dave Love  <fx@gnu.org>

        * xterm.c: Don't continue #define args for benefit of old cc.
        (xt_action_hook): Indent #error for benefit of K&R cc.

1999-09-13  Gerd Moellmann  <gerd@delysid.gnu.org>

        * xterm.c (XTcursor_to): Change for Lisp_Object selected_frame.
        (x_clear_frame, XTring_bell, XTmouse_position, XTread_socket): Ditto.
        (XRINGBELL): Removed.

1999-09-13  Dave Love  <fx@gnu.org>

        * xfns.c (x_put_x_image): Make type consistent with declaration.

        * fns.c (Fmake_hash_table): Fix string continuation.

1999-09-13  Gerd Moellmann  <gerd@delysid.gnu.org>

        * xfns.c (QCfile): Moved to xdisp.c.
        (syms_of_xfns): Don't initialize QCfile.
        (check_x_frame): Change for Lisp_Object selected_frame.
        (check_x_display_info, x_get_resource_string): Ditto.

1999-09-13  Gerd Moellmann  <gerd@gnu.org>

        * minibuf.c (choose_minibuf_frame): Don't try to set the
        mini-buffer window's buffer, if the buffer is invalid.

        * xfns.c (QCfile): Moved to xdisp.c.
        (syms_of_xfns): Don't initialize QCfile.

        * xdisp.c (QCfile): Move here from xfns.c.
        (syms_of_xdisp): Initialize it.

        * lisp.h (selected_frame): Add external declaration.

        * xselect.c (x_own_selection): Change for Lisp_Object selected_frame.
        (Fx_store_cut_buffer_internal): Ditto.
        (Fx_rotate_cut_buffers_internal): Ditto.

        * xfaces.c (frame_or_selected_frame): Change for Lisp_Object
        selected_frame.
        (Finternal_set_lisp_face_attribute): Ditto.
        (Finternal_get_lisp_face_attribute): Ditto.
        (Finternal_lisp_face_empty_p): Ditto.
        (Fdump_face): Ditto.

        * term.c (OUTPUT): Change for Lisp_Object selected_frame.
        (OUTPUT_IF, ring_bell, set_terminal_modes, reset_terminal_modes,
        set_terminal_window, set_scroll_region, reassert_line_highlight,
        change_line_highlight, cursor_to, raw_cursor_to, clear_to_end,
        clear_end_of_line, clear_end_of_line_raw, clear_end_of_line_raw,
        encode_terminal_code, write_glyphs, term_init): Ditto.

        * sysdep.c (reset_sys_modes): Change for Lisp_Object selected_frame.
        (kbd_input_ast, read_input_waiting): Ditto.

        * minibuf.c (choose_minibuf_frame): Change for Lisp_Object
        selected_frame.
        (read_minibuf): Ditto.

        * keyboard.c (command_loop_1): Change for Lisp_Object
        selected_frame.
        (cmd_error_internal, command_loop_1, read_char,
        kbd_buffer_get_event, read_avail_input,
        read_char_minibuf_menu_prompt, read_key_sequence, Fsuspend_emacs,
        interrupt_signal, quit_throw_to_read_char): Ditto.

        * fontset.c (Ffont_info): Change for Lisp_Object selected_frame.
        (Ffontset_info): DItto.

        * emacs.c (handle_USR1_signal): Change for Lisp_Object selected_frame.

        * dispnew.c (selected_frame): Make it a Lisp_Object.
        (adjust_frame_glyphs_initially): Change for Lisp_Object selected_frame.
        (direct_output_for_insert, direct_output_forward_char,
        init_display): Ditto.

        * data.c (swap_in_symval_forwarding): Change for Lisp_Object
        selected_frame.
        (set_internal): Ditto.

        * buffer.c (Fother_buffer): Change for Lisp_Object selected_frame.
        (record_buffer): Ditto.

        * frame.c (Fmake_terminal_frame): Use SELECTED_FRAME.
        (do_switch_frame): Change for Lisp_Object selected_frame.
        (Fselected_frame): Ditto.
        (Fframe_first_window): Use SELECTED_FRAME.
        (Fframe_root_window): Change for Lisp_Object selected_frame.
        (Fframe_selected_window, Fset_frame_selected_window, Fnext_frame,
        Fprevious_frame, other_visible_frames, Fdelete_frame,
        Fmouse_position, Fmouse_pixel_position, Fmake_frame_visible,
        Fmake_frame_invisible, Ficonify_frame, Fraise_frame, Flower_frame,
        Fframe_parameters, Fmodify_frame_parameters, Fframe_char_height,
        Fframe_char_width, Fframe_pixel_height, Fframe_pixel_width,
        Fset_frame_height, Fset_frame_width): Ditto.

1999-09-13  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (message2_nolog): Change for Lisp_Object selected_frame.
        (message3_nolog, message_with_string, message,
        setup_echo_area_for_printing, truncate_echo_area,
        prepare_menu_bars, redisplay_internal, Fdump_tool_bar_row): Ditto.

        * xmenu.c (Fx_popup_menu): Change for Lisp_Object selected_frame.
        (Fx_popup_dialog): Ditto.

        * xfns.c (check_x_frame): Change for Lisp_Object selected_frame.
        (check_x_display_info, x_get_resource_string): Ditto.

        * xterm.c (XTcursor_to): Change for Lisp_Object selected_frame.
        (x_clear_frame, XTring_bell, XTmouse_position, XTread_socket): Ditto.
        (XRINGBELL): Removed.

        * window.c (Fminibuffer_window): Change for Lisp_Object
        selected_frame.
        (Fwindow_at, Fprevious_window, window_loop, select_window_1,
        display_buffer_1, Fdisplay_buffer, temp_output_buffer_show,
        Fcurrent_window_configuration, init_window_once): Ditto.

        * frame.h (SELECTED_FRAME): New.

1999-09-12  Ken Raeburn  <raeburn@gnu.org>

        * category.c (word_boundary_p): Use XCAR and XCDR.
        * ccl.c (ccl_driver, resolve_symbol_ccl_program,
        Fregister_code_conversion_map): Likewise.
        * coding.c (setup_coding_system, detect_coding_system,
        Ffind_operation_coding_system, Fset_coding_priority_internal):
        Likewise.
        * doc.c (get_doc_string, Fdocumentation,
        store_function_docstring): Likewise.
        * editfns.c (save_restriction_restore): Likewise.
        * eval.c (Fcond, Fmacroexpand, Fcondition_case, wants_debugger,
        skip_debugger, find_handler_clause, Fautoload, Fapply,
        run_hook_with_args, run_hook_list_with_args, Ffetch_bytecode):
        Likewise.
        * fileio.c (Ffind_file_name_handler, Finsert_file_contents,
        Fwrite_region, do_auto_save_unwind, Fdo_auto_save,
        Fread_file_name): Likewise.
        * filelock.c (unlock_all_files): Likewise.
        * insdel.c (Fcombine_after_change_execute): Likewise.
        * intervals.c (adjust_intervals_for_insertion): Likewise.
        * keymap.c (get_keymap_1, Fkeymap_parent, Fset_keymap_parent,
        Fset_keymap_parent, fix_submap_inheritance, access_keymap,
        store_in_keymap, Fcopy_keymap, define_as_prefix,
        current_minor_maps, Faccessible_keymaps,
        accessible_keymaps_char_table, Fkey_description,
        Fwhere_is_internal, where_is_internal_2, where_is_internal_1,
        describe_buffer_bindings, describe_map_tree, shadow_lookup,
        describe_map): Likewise.
        * lread.c (Fload, load_unwind, close_load_descs, read_vector,
        read_list, init_lread): Likewise.
        * search.c (Fmatch_data): Likewise.
        * sunfns.c (Fsun_menu_internal): Likewise.
        * syntax.c (describe_syntax): Likewise.
        * undo.c (record_insert, record_delete, Fundo_boundary,
        truncate_undo_list): Likewise.
        * vmsproc.c (child_sig): Likewise.

        * editfns.c (Fformat): Use XFLOAT_DATA.

1999-09-12  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (command_loop_1): Resize mini-window to the
        exact size of a message displayed, if any.

        * xdisp.c (resize_mini_window): Add parameter exact_p.  Resize
        to exact size if exact_p is non-zero.
        (display_echo_area_1): Call resize_mini_window with
        new parameter.
        (redisplay_internal): Ditto.
        (resize_echo_area_axactly): New.

        * minibuf.c (read_minibuf_unwind): Call resize_mini_window with
        new parameter.

        * dispextern.h: Change prototype of resize_mini_window.
        Add prototype for resize_echo_area_axactly.

        * xfaces.c (Fx_family_fonts): Replaces Fx_font_list.
        (syms_of_xfaces): Defsubr accordingly.

        * xdisp.c (hscroll_window_tree): Choose cursor row from
        desired or current matrix.
        (redisplay_internal): Hscroll before updating.

1999-09-12  Gerd Moellmann  <gerd@gnu.org>

        * syntax.c (Fforward_word): Use prompt_end_charpos instead
        of minibuffer_prompt_length.

        * minibuf.c (read_minibuf): Use prompt_end_charpos instead
        of minibuffer_prompt_length.
        (read_minibuf_unwind): Ditto.
        (Fminibuffer_complete_and_exit): Ditto.
        (Fminibuffer_complete_word): Ditto.
        (Fminibuffer_prompt_end): Ditto.

        * editfns.c (Fbuffer_string): Use prompt_end_charpos instead
        of minibuffer_prompt_length.
        (Fline_beginning_position): Ditto.

        * buffer.c (Fget_buffer_create): Use prompt_end_charpos instead
        of minibuffer_prompt_length.
        (Fmake_indirect_buffer): Ditto.
        (Fkill_buffer): Ditto.
        (Ferase_buffer): Ditto.

        * buffer.h (prompt_end_charpos): Replaces
        minibuffer_prompt_length.

        * minibuf.c (read_minibuf): Return mini-buffer contents 
        without the prompt.

        * editfns.c (make_buffer_string_both): Take out the code
        to handle mini-buffer prompts.
        (Fbuffer_string): Handle the prompt here, instead.

        * xfaces.c (lface_from_face_name): Resolve face aliases.
        (Qmode_line): Replaces Qmodeline.
        (realize_basic_faces): Use Qmode_line.
        (syms_of_xfaces): Initialize Qmode_line.

1999-09-12  Gerd Moellmann  <gerd@gnu.org>

        * minibuf.c (read_minibuf): Set minibuf_prompt_width to the
        current column after inserting prompt.
        (Fminibuffer_prompt_width): Return minibuf_prompt_width.

        * xfaces.c (Qframe_update_face_colors): New.
        (syms_of_xfaces): Initialize call.
        (update_face_from_frame_parameter): Call that function when
        the frame's background changes.

1999-09-12  Richard Stallman  <rms@gnu.org>

        * insdel.c (del_range_1): Don't treat minibuffer prompt specially.

1999-09-12  Ken Raeburn  <raeburn@gnu.org>

        * alloc.c (Fcons, pure_cons, Fpurecopy, Fgarbage_collect,
        mark_object, mark_buffer): Use XCAR and XCDR.
        * bytecode.c (Fbyte_code): Likewise.
        * callint.c (Fcall_interactively, Fprefix_numeric_value):
        Likewise.
        * callproc.c (Fcall_process, Fcall_process_region, child_setup,
        getenv_internal): Likewise.
        * dired.c (file_name_completion): Likewise.
        * fns.c (Fsafe_length, concat, Fcopy_alist, Fmember, Fmemq, Fassq,
        assq_no_quit, Fassoc, Frassq, Frassoc, Fdelq, Fdelete, Freverse,
        Fplist_get, Fplist_put, internal_equal, mapcar1): Likewise.
        * indent.c (Fcompute_motion): Likewise.
        * process.c (decode_status, Fprocess_status, Fprocess_exit_status,
        list_processes_1, Fstart_process, Fopen_network_stream,
        wait_reading_process_input, read_process_output_call,
        kill_buffer_processes, sigchld_handler, exec_sentinel_unwind,
        status_notify, wait_reading_process_input): Likewise.
        * textprop.c (PLIST_ELT_P, property_value, set_properties,
        extend_property_ranges): Likewise.
        * w32faces.c (Fpixmap_spec_p, merge_face_list): Likewise.
        * w32fns.c (x_window_to_frame, x_set_frame_parameters,
        x_report_frame_params, x_set_cursor_type, x_icon_type,
        x_figure_window_size, Fx_create_frame, w32_load_system_font,
        w32_load_font, enum_font_cb2, w32_list_bdf_fonts, w32_list_fonts,
        w32_list_synthesized_fonts, w32_find_ccl_program, Fx_list_fonts,
        Fw32_find_bdf_fonts, w32_find_bdf_fonts_in_dir,
        x_display_info_for_name, Fx_display_list): Likewise.
        * w32menu.c (menubar_id_to_frame, single_keymap_panes,
        Fx_popup_menu, Fx_popup_dialog): Likewise.
        * w32proc.c (Fw32_set_keyboard_layout): Likewise.
        * w32term.c (x_window_to_scroll_bar, w32_read_socket,
        w32_term_init, x_delete_display): Likewise.
        * xfns.c (x_window_to_frame, x_any_window_to_frame,
        x_non_menubar_window_to_frame, x_menubar_window_to_frame,
        x_top_window_to_frame, x_set_frame_parameters,
        x_report_frame_params, x_set_cursor_type, x_icon_type,
        x_figure_window_size, Fx_create_frame, x_display_info_for_name,
        Fx_display_list, x_create_tip_frame): Likewise.
        * xmenu.c (menubar_id_to_frame, single_keymap_panes,
        Fx_popup_menu, Fx_popup_dialog): Likewise.
        * xselect.c (x_own_selection, x_get_local_selection,
        x_handle_selection_request, x_handle_selection_clear,
        x_clear_frame_selections, wait_for_property_change_unwind,
        wait_for_property_change, x_handle_property_notify,
        copy_multiple_data, x_get_foreign_selection,
        lisp_data_to_selection_data, clean_local_selection_data,
        x_handle_selection_notify, Fx_get_selection_internal,
        x_disown_buffer_selections): Likewise.
        * xterm.c (x_window_to_scroll_bar, XTread_socket, x_list_fonts,
        x_load_font, x_find_ccl_program, x_term_init, x_delete_display):
        Likewise.

        * alloc.c (make_float, make_pure_float, Fpurecopy): Use
        XFLOAT_DATA.
        * bytecode.c (Fbyte_code): Likewise.
        * floatfns.c (extract_float, Fexpt, Fabs, rounding_driver,
        fmod_float): Likewise.

1999-09-11  Richard Stallman  <rms@gnu.org>

        * xdisp.c (run_window_scroll_functions): If hook functions switch
        buffers, switch back after.

1999-09-11  Ken Raeburn  <raeburn@gnu.org>

        * charset.h (GET_TRANSLATION_TABLE): Use XCDR.
        * frame.h (FOR_EACH_FRAME): Use XCAR and XCDR.
        (PIXEL_X_FROM_CANON_X, PIXEL_Y_FROM_CANON_Y): Use XFLOAT_DATA.
        * keyboard.h (EVENT_HEAD, EVENT_START, EVENT_END, POSN_WINDOW,
        POSN_BUFFER_POSN, POSN_WINDOW_POSN, POSN_TIMESTAMP): Use XCAR and
        XCDR.
        * syntax.h (SYNTAX, SYNTAX_WITH_FLAGS, SYNTAX_MATCH): Use XCAR and
        XCDR.

1999-09-10  Richard Stallman  <rms@gnu.org>

        * xterm.c (XTread_socket): In XSetInputFocus, use RevertToParent,
        not RevertToPointerRoot.
        (XTset_vertical_scroll_bar) [!USE_TOOLKIT_SCROLL_BARS]:
        Fix the code to clear around the scroll bar.

1999-09-10  Keisuke Nishida  <kxn30@po.cwru.edu>

        * print.c: Support print-circle and related features.
        (Vprint_gensym_alist): Removed.
        (Vprint_circle, Vprint_continuous_numbering, print_number_index
        Vprint_number_table): New variables.
        (PRINT_NUMBER_OBJECT, PRINT_NUMBER_STATUS): New macros.
        (PRINTPREPARE, PRINTFINISH): Don't set Vprint_gensym_alist.
        (print, print_preprocess, print_preprocess_string, print_object):
        New/modified functions with print-circle feature.  Use
        Vprint_number_table instead of Vprint_gensym_alist for print-gensym.
        (syms_of_print): Defined new Lisp variables `print-circle',
        `print-continuous-numbering', `print-number-table'.

1999-09-10  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_build_heuristic_mask): Accept a list `(R G B)'
        as background color specification instead of an integer.
        (image-cache-eviction-delay): Replaces image-eviction-seconds.
        (Vimage_cache_eviction_delay): Replaces Vimage_eviction_seconds.
        (clear_image_cache, syms_of_xfns): Use it.
        (Qpostscript): Replaces Qghostscript.
        (gs_type): Use it.
        (gs_image_p): Ditto.
        (syms_of_xfns): Initialize Qpostscript.

1999-09-10  Richard Stallman  <rms@gnu.org>

        * buffer.c (Ferase_buffer): Don't erase the minibuffer prompt.

1999-09-09  Richard Stallman  <rms@gnu.org>

        * editfns.c (Fline_beginning_position): Handle minibuffer prompt here.

        * cmds.c (Fbeginning_of_line): Don't handle minibuffer prompt here.

1999-09-09  Gerd Moellmann  <gerd@gnu.org>

        * fns.c (Fmakehash): Accept just one optional argument TEST.

        * xfns.c (QCindex): New.
        (syms_of_xfns): Initialize QCindex.
        (gif_load): Use it instead of `:image'.

1999-09-09  Richard Stallman  <rms@gnu.org>

        * fileio.c (Fwrite_region): Finish renaming CONFIRM to MUSTBENEW.
        (Fwrite_region) [DOS_NT]: Handle `excl' here too.

1999-09-08  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (Qwhen): Replaces QCwhen.
        (syms_of_xdisp): Initialized it instead of QCwhen.
        (handle_single_display_prop): Use it instead of QCwhen.

1999-09-08  Ken'ichi Handa  <handa@gnu.org>

        * charset.c (translate_char): Reset MSBs of arguments of
        MAKE_CHAR.
        (CHAR_COMPONENTS_VALID_P): Fix for ASCII.

1999-09-08  Lars Magne Ingebrigtsen  <larsi@gnus.org>

        * editfns.c (Fbufsize): Accept an extra BUFFER parameter.

        * fns.c (Fbase64_decode_region): Don't place point outside of the
        current accessible portion.

1999-09-07  Richard Stallman  <rms@gnu.org>

        * keymap.c (fix_submap_inheritance): Do nothing if the proper
        parent is an ancestor of SUBMAP; otherwise, add it as the
        ultimate ancestor.

1999-09-07  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (handle_single_display_prop): Change conditional
        display property to `:when FORM . VALUE'.

1999-09-07  Richard Stallman  <rms@gnu.org>

        * fileio.c (Fwrite_region): Doc fix.

1999-09-07  Stefan Monnier  <monnier@cs.yale.edu>

        * fileio.c (Qexcl): New variable.
        (report_file_error): Handle EEXIST specially.
        (Fwrite_region): Special handling for CONFIRM = `excl'.
        (syms_of_fileio): Initialize Qexcl.

1999-09-07  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_set_foreground_color): Call
        update_face_from_frame_parameter.
        (x_set_background_color): Ditto.
        (x_set_mouse_color): Ditto.
        (x_set_cursor_color): Ditto.
        (x_set_border_color): Ditto.
        (x_set_scroll_bar_foreground): Ditto.
        (x_set_scroll_bar_background): Ditto.

        * xfaces.c (recompute_basic_faces): Clear face cache.
        (Finternal_set_lisp_face_attribute): Modify frame parameters
        if attributes of certain faces are changed.
        (update_face_from_frame_parameter): New.

        * xfaces.c (realize_basic_faces): Realize new basic faces.

        * dispextern.h (SCROLL_BAR_FACE_ID, BORDER_FACE_ID,
        CURSOR_FACE_ID, MOUSE_FACE_ID): New.

        * xfaces.c (Qscroll_bar, Qcursor, Qborder, Qmouse): New.
        (syms_of_xfaces): Intialize new symbols.

        * fns.c (Fmakehash): Take one argument, test, make all the
        rest keyword arguments.

        * window.c (Fset_window_margins): Make window the first argument.
        (set_window_buffer): Call Fset_window_margins with window as first
        argument.

1999-09-07  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Qfringe): Replaces Qmargin.

1999-09-07  Kenichi Handa  <handa@etl.go.jp>

        * charset.h: Lots of comments fixed.
        (PARSE_MULTIBYTE_SEQ): Make it work also for ASCII string.
        (STRING_CHAR_AND_CHAR_LENGTH): This macro removed.

        * charset.c : Lots of comments fixed.
        (SPLIT_MULTIBYTE_SEQ): Make it work also for ASCII string.
        (CHAR_COMPONENTS_VALID_P): Name changed from
        CHAR_COMPONENT_VALID_P.  Caller changed.

1999-09-06  Richard Stallman  <rms@gnu.org>

        * insdel.c (syms_of_insdel): Define Lisp variable
        inhibit-modification-hooks.

1999-09-06  Michael Sperber [Mr. Preprocessor]  <sperber@informatik.uni-tuebingen.de>

        * s/aix4-2.h (ALIGN_DATA_RELOC): Undefined to support new
        unexaix.c.

        * s/aix3-1.h (ALIGN_DATA_RELOC): Defined to support new unexaix.c.

1999-09-06  Dave Love  <fx@gnu.org>

        * unexaix.c: New version incorporating Michael Sperber's changes
        from XEmacs.  Should solve problems on AIX 4.3.

        * lread.c (Vbyte_boolean_vars): New variable.
        (defvar_bool, syms_of_lread): Use it.

1999-09-05  Richard Stallman  <rms@gnu.org>

        * minibuf.c (read_minibuf): Put all three properties on the
        same range, the whole prompt.

1999-09-05  Gerd Moellmann  <gerd@gnu.org>

        * sound.c (Qplay_sound_functions): Replaces Qplay_sound_hook.
        (Fplay_sound, syms_of_sound): Use it.
        (parse_sound): Allow float volume values in the range [0, 1].
        (Fplay_sound): Ditto.

        * window.c (Fset_window_vscroll): Make window the first argument,
        amount to scroll the second.  Take non-negative vscroll as
        argument.
        (Fwindow_vscroll): Return non-negative vscroll.

        * xfns.c (Fx_show_tip): Improve documentation.

1999-09-05  Gerd Moellmann  <gerd@gnu.org>

        * buffer.c, buffer.h, dispextern.h, dispnew.c, keyboard.c,
        window.c, xdisp.c, xfaces.c, xterm.c, keyboard.h: Change
        `top-line' and `top_line' to `header-line' and `header_line'.
        Likewise for similar spellings.

1999-09-05  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (row_containing_pos): New.
        (try_window_id): Use it.

        * alloc.c, dispextern.h, dispnew.c, frame.c, frame.h, keyboard.c,
        lisp.h, termhooks.h, window.c xdisp.c, xfaces.c, xfns.c, xterm.c:
        Change spelling of `toolbar' to `tool_bar' or `tool-bar'.
        Likewise for upper-case etc.

1999-09-05  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (XTset_vertical_scroll_bar) [!USE_TOOLKIT_SCROLL_BARS]:
        Fix reference to renamed variable.

1999-09-04  Gerd Moellmann  <gerd@gnu.org>

        * window.c (Qwindow_size_fixed): Replaces Qfixed_window_size.
        (window_fixed_size_p): Use Qwindow_size_fixed instead of 
        Qfixed_window_size.
        (syms_of_window): Ditto.

        * fns.c (Fmakehash): Exchange optional test and size arguments.

1999-09-03  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (XTset_vertical_scroll_bar): Block input when clearing
        under newly created scroll bar.
        (expose_window): If window is not yet fully initialized, do
        nothing.  This can happen when toolkit scroll bars are used and a
        window is split.  Reconfiguring the scroll bars will generate an
        expose for a newly created window.

        * frame.h (struct frame): New member `gamma'.

        * xfns.c: Include math.h.  Add extern declaration for atof in case
        we don't see one.
        (Qscreen_gamma): New.
        (struct x_frame_parm_table): Add prototypes, add
        x_set_screen_gamma.
        (gamma_correct): New function.
        (defined_color): Call it.
        (x_set_screen_gamma): New.
        (x_set_title): Add parameter old_value.
        (RES_TYPE_FLOAT): New.
        (x_get_arg): Handle RES_TYPE_FLOAT.
        (Fx_create_frame): Call x_default_parameter for `screen-gamma'.
        (lookup_pixel_color): Change call to x_alloc_nearest_color to
        new prototype.
        (lookup_rgb_color): Ditto.
        (syms_of_xfns): Initialize Qscreen_gamma.

        * xterm.c (x_alloc_nearest_color_for_widget) [USE_X_TOOLKIT]:
        New.  Allocate color for lwlib widgets.
        (x_alloc_nearest_color): Change parameter list include the
        frame on which to allocate colors.  Gamma-correct colors.
        (x_alloc_lighter_color): Call x_alloc_lighter_color with new
        parameter list.

        * xterm.h: Change protorype of x_alloc_nearest_color.

1999-09-03  Richard Stallman  <rms@gnu.org>

        * callproc.c: Delete the system-independent include of stdlib.h
        (leaving only the one in the WINDOWSNT conditional).

1999-09-03  Andrew Choi  <choi@cs.hku.hk>

        * callproc.c (call-process) [macintosh]: Call mac_run_command in
        sysdep.c.  The Mac code is modeled after the DOS code.
        
        * dispextern.h [macintosh]: Include macterm.h to define substitute X
        Window types and macros.

        * frame.h: Do nothing if included a second time.
        (enum output_method): Add mac_output frame type.
        (union output_data): Add new alternative `mac'.
        (FRAME_MAC_P): New macro.
        
        * frame.c (Fframep) [macintosh]: Handle mac frame type.
        (syms_of_frame_1): Initialize Qmac.
        (make_terminal_frame) [macintosh]: Initialize output_data.mac fields.
        (Fmake_terminal_frame) [macintosh]: Add an alternate error check.
        (Fmodify_frame_parameters) [macintosh]: Call
        mac_set_frame_parameter in macterm.c.
        
        * keyboard.c [macintosh]: Set KBD_BUFFER_SIZE to a smaller value
        (512) because Mac compilers limit local data of a function to 32K.
        
        * make-docfiles.c: Correctly handle input files with Mac-style
        eol's.
        
        * sysdep.c: Define numerous routines to emulate Unix system calls.
        
        * xfaces.c: on MacOS, define the set of colors listed in rgb.txt
        file of an X Window environment.
        
        * xfaces.c: on MacOS, define the Lisp functions x-display-color-p,
        x-display-grayscale, x-color-defined-p, and x-color-values.
        
        * sysdep.c [macintosh] (stat, fstat, mkdir, rmdir, utime, access)
        (open, creat, unlink, read, write, rename, fopen, pause, alarm)
        (signal, sleep, gmtime, localtime, ctime, time, index, mktemp)
        (getpwuid, getpwnam, dup, dup2, isatty, getgid, getegid, getuid)
        (geteuid, getpid, getenv, uname, opendir, closedir, readdir, getwd.):
        New functions, replacing POSIX features.
        
        * sysdep.c [macintosh] (Mac2UnixPathname, Unix2MacPathname, CheckAlarm)
        (InitMyPasswd, GetTempDirName, mystrchr, mystrtok, mystrcpy):
        (InitEmacsPasswdDir, run_mac_command): New subroutines.

        * sysdep.c [macintosh] (targetTicks, alarm_signal_func, myPasswdName)
        (myPasswd, emacsPasswdDir, emacsPasswd, myPasswdInited, mask)
        (myPasswdDir, TempDirName, sys_siglist): New variables.

        * sysdep.c [macintosh] (execvp, wait, croak, fork, kill, sigsetmask)
        (sigblock, request_sigio, unrequest_sigio, setpgrp, pipe, symlink)
        (link, lstat, readlink, umask, chmod, sbrk, fsync, ioctl):
        Define empty stubs so Emacs will link.

1999-09-03  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c: Use XCAR and XCDR instead of XCONS.

        * window.h: New member frozen_window_start_p.

        * window.c (foreach_window, foreach_window_1): New.
        (freeze_window_start, freeze_window_starts): New.
        (make_window): Initialize frozen_window_start_p.
        (replace_window): Ditto.
        (Fset_window_point): Remove references to deleted variables.
        (Fset_window_start): Ditto.

        * xdisp.c (Vresize_mini_config, resize_mini_frame,
        resize_mini_initial_height): Removed.
        (syms_of_xdisp): Remove references to these variables.
        (resize_mini_window): Don't save window configuration, freeze
        window starts instead.  Enlarge window until displaying an empty
        buffer, then shrink it.  Make the function externally visible.
        (redisplay_window): Treat frozen window start like forced start,
        but accept point outside of the window.

        * dispextern.h: Add function prototype for resize_mini_window.

        * minibuf.c (read_minibuf_unwind): Resize mini-window when
        reaching minibuf_level 0.

        * lisp.h: Remove extern declarations for variables deleted from
        xdisp.c.

        * dispnew.c (adjust_frame_glyphs): Remove reference to
        Vresize_mini_config.

1999-09-03  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_set_scroll_bar_width): Change conditional compilation
        to USE_TOOLKIT_SCROLL_BARS.

        * xterm.c (x_scroll_bar_create): Don't clear under scroll bar
        here.
        (XTset_vertical_scroll_bar): Clarify position computations.  Clear
        under newly created scroll bar.  Put toolkit scroll bars in the
        middle of the area reserved for the scroll bar.

1999-09-03  Kenichi Handa  <handa@etl.go.jp>

        The following changes are for the new handling of mulitbyte
        sequence.  Now, except for a composite character, no multibyte
        character in string/buffer has trailing garbage bytes.  For
        instance, the length of string "\201\300\300" is now 2, the first
        character is Latin-1 A-grave, the second is raw \300.

        * charset.h (MAKE_NON_ASCII_CHAR): Handle the case that C1 or C2
        are negative.
        (MAKE_CHAR): Don't set MSBs of C1 and C2 to 0.
        (VALID_MULTIBYTE_CHAR_P): This macro deleted.
        (PARSE_COMPOSITE_SEQ): New macro.
        (PARSE_CHARACTER_SEQ): New macro.
        (PARSE_MULTIBYTE_SEQ): New macro. 
        (CHAR_PRINTABLE_P): New macro.
        (STRING_CHAR): Adjusted for the change of string_to_non_ascii_char.
        (STRING_CHAR_AND_LENGTH): Likewise.
        (STRING_CHAR_AND_CHAR_LENGTH): Define it as STRING_CHAR_AND_LENGTH.
        (INC_POS): Use the macro PARSE_MULTIBYTE_SEQ.
        (DEC_POS, BUF_INC_POS, BUF_DEC_POS): Likewise,

        * charset.c (SPLIT_COMPOSITE_SEQ): New macro.
        (SPLIT_CHARACTER_SEQ): New macro.
        (SPLIT_MULTIBYTE_SEQ): New macro.
        (CHAR_COMPONENT_VALID_P): New macro.
        (non_ascii_char_to_string): Generate a multibyte sequence as far
        as possible.
        (string_to_non_ascii_char): The 4th arg exclude_tail_garbage is
        deleted.  Caller changed.  Use the macro SPLIT_MULTIBYTE_SEQ.
        (split_non_ascii_string): Likewise.
        (multibyte_form_length): Use the macro PARSE_MULTIBYTE_SEQ.
        (char_printable_p): New function.
        (translate_char): Check character by NATNUMP instead of INTEGERP.
        (unibyte_char_to_multibyte): Call char_valid_p instead of
        VALID_MULTIBYTE_CHAR_P.
        (Fmake_char_internal): Check the arguments more rigidly.
        (Fcharset_after): Use the macro SPLIT_MULTIBYTE_SEQ.
        (char_valid_p): Check the validity by CHAR_COMPONENT_VALID_P.
        (Fmultibyte_char_to_unibyte): Check the validity of character by
        CHAR_VALID_P.
        (chars_in_text): Call multibyte_chars_in_text.
        (multibyte_chars_in_text): Use the macro PARSE_MULTIBYTE_SEQ.
        (Fcompose_string): Use the macro STRING_CHAR_AND_LENGTH instead of
        STRING_CHAR_AND_CHAR_LENGTH (which is obsolete now).

        * data.c (Faset): Adjust the way to check byte-combining
        possibility for the new handling of multibyte sequence.

        * editfns.c (Fsubst_char_in_region): Likewise.

        * fns.c (count_combining): Use the macro PARSE_MULTIBYTE_SEQ.
        (string_char_to_byte): Likewise.
        (string_byte_to_char): Likewise.

        * indent.c (MULTIBYTE_BYTES_WIDTH): Delete the 2nd arg C.  Use the
        macro STRING_CHAR_AND_LENGTH.  Caller changed.

        * insdel.c (count_combining_composition): New function.
        (count_combining_before): Adjust the way to check byte-combining
        possibility for the new handling of multibyte sequence.  Call
        count_combining_composition for a composite character.
        (count_combining_after): Likewise.

        * print.c (print_string): Use the macro STRING_CHAR_AND_LENGTH.
        (print): Likewise.

        * dispextern.h (struct it): Change the size of the member
        `ctl_chars'.

        * xdisp.c (get_next_display_element): Display incomplete multibyte
        sequence (e.g. \222\300) by octal form.

1999-09-02  Gerd Moellmann  <gerd@gnu.org>

        * xterm.h (VERTICAL_SCROLL_BAR_WIDTH_TRIM): Change from 2 to 0.

        * fns.c (Fhash_table_weakness): Replaces Fhash_table_weak.
        (cmpfn_eql, sxhash): Use XFLOAT_DATA.

1999-09-02  Gerd Moellmann  <gerd@gnu.org>

        * buffer.c (set_buffer_internal): Never set
        windows_or_buffers_changed.

        * xdisp.c (try_window_id): Reset first_unchanged_at_end_row
        if we have displayed to the bottom of the window.

        * syntax.c (Fforward_word): Stop at a mini-buffer prompt end
        in both directions.  Extend documentation.

1999-09-01  Gerd Moellmann  <gerd@gnu.org>

        * minibuf.c (read_minibuf): Flush display after setting cursor to
        column 0.

1999-08-31  Gerd Moellmann  <gerd@gnu.org>

        * s/freebsd.h (__FreeBSD_version): Don't define it if it is
        already defined.  This avoids a warning from buffer.c.

1999-08-30  Gerd Moellmann  <gerd@gnu.org>

        * xterm.h (FRAME_X_FLAGS_AREA_COLS): Define it as the total width
        of both margins.
        (FRAME_X_FLAGS_AREA_WIDTH): Likewise.
        (FRAME_X_LEFT_FLAGS_AREA_WIDTH): New.
        (FRAME_X_RIGHT_FLAGS_AREA_WIDTH): New.

        * frame.h (FRAME_WINDOW_WIDTH_ARG): Add in FRAME_FLAGS_AREA_COLS
        once instead of twice.
        (FRAME_LEFT_FLAGS_AREA_WIDTH): New.

        * xterm.c: Remove unused bitmaps.
        (continued_bits, continuation_bits, overlay_bits): Change images.
        (x_draw_vertical_border): Use FRAME_X_RIGHT_FLAGS_AREA_WIDTH
        instead of FRAME_X_FLAGS_AREA_WIDTH.
        (x_after_update_window_line): Ditto.
        (x_draw_bitmap): Likewise.
        (x_draw_row_bitmaps): Likewise.
        (x_draw_glyph_string_box): Likewise.
        (x_draw_glyphs): Likewise.
        (x_scroll_run): Likewise.
        (expose_window_tree): Likewise.
        (note_mode_line_highlight): Likewise.
        (XTset_vertical_scroll_bar): Likewise.
        (x_clip_to_row): Likewise.
        (x_set_window_size): Likewise.

        * xfns.c (x_figure_window_size): Use FRAME_FLAGS_AREA_COLS instead
        of 2 * that value.

        * xdisp.c (window_box_width): Use FRAME_FLAGS_AREA_COLS instead of
        2 * that value.
        (window_box_left): Use FRAME_LEFT_FLAGS_AREA_WIDTH instead of
        FRAME_FLAGS_AREA_WIDTH.

        * window.c (coordinates_in_window): Use
        FRAME_LEFT_FLAGS_AREA_WIDTH instead of FRAME_FLAGS_AREA_WIDTH.
        (window_internal_width): Subtract FRAME_FLAGS_AREA_WIDTH once
        instead of twice.

        * widget.c (set_frame_size): Set flags_area_extra to 
        FRAME_FLAGS_AREA_WIDTH instead of 2 * that width.
        (EmacsFrameSetCharSize): Ditto.

        * dispnew.c (mode_line_string): Add FRAME_LEFT_FLAGS_AREA_WIDTH
        instead of FRAME_FLAGS_AREA_WIDTH.

        * dispextern.h (WINDOW_DISPLAY_PIXEL_WIDTH): Subtract
        FRAME_FLAGS_AREA_COLS once.
        (WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X): Add
        FRAME_LEFT_FLAGS_AREA_WIDTH instead of FRAME_FLAGS_AREA_WIDTH.

1999-08-30  Gerd Moellmann  <gerd@gnu.org>

        * freebsd.h (C_SWITCH_SYSTEM): Added to let configure find headers
        in /usr/X11R6/include which are checked for with AC_CHECK_HEADER.

1999-08-30  Gerd Moellmann  <gerd@gnu.org>

        * fns.c (QCweakness): Replaces QCweak.
        (Fmake_hash_table): Ditto.
        (Fmakehash): Ditto.
        (syms_of_fns): Ditto.

1999-08-29  Richard Stallman  <rms@gnu.org>

        * search.c (compile_pattern_1): Enable RE_CHAR_CLASSES for regexp.

        * sysdep.c (read_input_waiting): Pass read_socket_hook just 4 args.

        * syntax.h (SYNTAX_COMMENT_NESTED, SYNTAX_FLAGS_COMMENT_NESTED):
        Add support for nested comments.

        * syntax.c (Fforward_comment, scan_lists, scan_sexps_forward):
        Consolidate the forward comment code into the new `forw_comment'.
        (forw_comment): New subroutine.  Added support for nested comments.
        (lisp_parse_state, back_comment, Fmodify_syntax_entry)
        (Fparse_partial_sexp): Add support for nested comments.

1999-08-28  Ken Raeburn  <raeburn@gnu.org>

        * lisp.h (struct Lisp_Cons, XCAR, XCDR, struct Lisp_Float): Change
        names of structure elements if HIDE_LISP_IMPLEMENTATION is
        defined, to help detect code that uses knowledge of the Lisp
        internals that it shouldn't have.
        (XFLOAT_DATA): New macro.

1999-08-25  Gerd Moellmann  <gerd@gnu.org>

        * syntax.c (Fforward_word): If in a mini-buffer and moving
        backwards, stop in front of the prompt to prevent accidentially
        moving into the read-only prompt.

        * window.c (Frecenter): Clear frame if called with nil or no arg.

        * xdisp.c (resize_mini_window): Don't resize if
        Vmax_mini_window_height is nil.  Otherwise, use a default if
        Vmax_mini_window_height is not ot a number.
        (syms_of_xdisp): Extend documentation of Vmax_mini_window_height.

1999-08-25  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * unexelf.c: Merge IRIX debugging info patch from unexsgi.c
        * m/iris4d.h: Use unexelf for IRIX 5.*.
        * m/iris5d.h: Use unexelf for IRIX 6.*.
        * unexsgi.c: Deleted.

        * unexelf.c: Auto-detect .sbss section.
        (round_up): Make it static.
        (unexec): Declare alignment as Elf Word.  Skip ``Program
        segment above .bss'' test on MIPS without .sbss.
        Copy sections .got and .sdata1 sections.  Adjust offsets in
        sections .sdata, .lit4, .lit8, .got and .sdata1.

1999-08-25  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (try_window_id): Remove typo.

1999-08-24  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (try_window_id): Recognize case that PT == ZV and in
        unchanged text at the bottom when computing the cursor position.
        (message3_nolog): Raise frame only if minibuffer_auto_raise is
        set.

        * lisp.h (PVEC_TYPE_MASK): Add the bit for hash tables.

1999-08-24  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Qmargin): Replacement for Qbitmap_area.
        (realize_basic_faces): Replace Qmargin for Qbitmap_area.
        (syms_of_xfaces): Ditto.

        * window.c (Fset_window_point): Reset Vresize_mini_config.
        (Fset_window_start): Ditto.
        (set_window_buffer): Ditto.

        * dispnew.c (adjust_frame_glyphs): Reset Vresize_mini_config.

        * xdisp.c (redisplay_window): Don't ever test just_this_one_p
        before calling try_window.
        (echo_area_display): If height has changed, update other windows.
        (resize_mini_frame, resize_mini_initial_height): New.
        (resize_mini_window): Save/restore window configuration
        differently.

        * lisp.h (Vresize_mini_config, resize_mini_frame, 
        resize_mini_initial_height): Add extern declarations.

        * xterm.c (expose_window_tree): Fix typo CANON_Y_UNIT to
        CANON_X_UNIT.

        * xfns.c [HAVE_JPEG]: Work around a warning about HAVE_STDLIB_H
        being redefined in jconfig.h.

1999-08-23  Ken'ichi Handa  <handa@gnu.org>

        * coding.h: Include "ccl.h" instead of "../src/ccl.h".

1999-08-22  Gerd Moellmann  <gerd@gnu.org>

        * alloc.c (mark_glyph_matrix): Mark strings only.

        * xdisp.c (redisplay_internal): Clear garbaged frames after
        resizing mini-window.

1999-08-22  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (unwind_with_echo_area_buffer): Use
        set_buffer_internal_1 instead of set_buffer_internal.
        (with_echo_area_buffer): Ditto.

        * buffer.c (set_buffer_internal): Set windows_or_buffers_changed
        only if buffer is displayed somewhere.

        * buffer.h (BUF_COMPUTE_UNCHANGED): New.

        * insdel.c (gap_left): Use BUF_COMPUTE_UNCHANGED.
        (gap_right): Ditto.
        (modify_region): Ditto.

        * buffer.c (modify_overlay): Use BUF_COMPUTE_UNCHANGED.

        * xdisp.c (Vresize_mini_config): New.
        (resize_mini_window): Use it to save restore original window
        configuration
        (syms_of_xdisp): Initialize it.

        * buffer.h (struct buffer): Add prevent_redisplay_optimizations_p.

        * dispextern.h (struct glyph_matrix): Add buffer, begv, and zv.

        * xdisp.c (reconsider_clip_changes): New.
        (redisplay_internal, redisplay_window): Call it.
        (mark_window_display_accurate, redisplay_internal): Set current
        matrix' buffer, begv, zv.

        * window.c (Fset_window_hscroll): Set
        prevent_redisplay_optimizations_p instead of clip_changed.
        (Fset_window_hscroll): Ditto.
        (temp_output_buffer_show): Ditto.
        (Fset_window_vscroll): Ditto.

        * buffer.c (reset_buffer): Set clip_changed to 0 and
        prevent_redisplay_optimizations_p to 1.
        (Fget_buffer_create): Set prevent_redisplay_optimizations_p to 1.

        * buffer.h (BUF_UNCHANGED_MODIFIED, UNCHANGED_MODIFIED,
        BUF_OVERLAY_UNCHANGED_MODIFIED, OVERLAY_UNCHANGED_MODIFIED,
        BUF_BEG_UNCHANGED, BEG_UNCHANGED, BUF_END_UNCHANGED,
        END_UNCHANGED): New.
        (struct buffer_text):  Add beg_unchanged, end_unchanged,
        unchanged_modified, overlay_unchanged_modified.

        * window.h (beg_unchanged, end_unchanged, unchanged_modified,
        overlay_unchanged_modified): Removed.
        (with_echo_area_unwind_data): Don't save beg/end_unchanged.
        (unwind_with_echo_area_buffer): Don't restore them.
        (debug_beg_unchanged, debug_end_unchanged) [GLYPH_DEBUG]: Removed.
        (text_outside_line_unchanged_p, redisplay_internal,
        try_scrolling): Use/set buffer-specific beg/end_unchanged.
        (redisplay_window): Let try_window_id be called if more than one
        window is displayed.  Use/set buffer-specific beg/end_unchanged.
        (get_last_unchanged_at_beg_row, get_first_unchanged_at_end_row,
        try_window_id):
        Use buffer-specific beg/end_unchanged.

        * window.h (beg_unchanged, end_unchanged, unchanged_modified,
        overlay_unchanged_modified): Remove extern declarations.

        * keyboard.c (command_loop_1):  Set beg/end_unchanged per
        buffer.

        * insdel.c (gap_left): Compute beg/end_unchanged per buffer.
        (gap_right): Ditto.
        (adjust_after_replace): Likewise.
        (replace_range, del_range_2, modify_region): Likewise.

        * dispnew.c (direct_output_for_insert):  Set beg_unchanged
        and unchanged_modified per buffer.

        * coding.c (code_convert_region): Compute beg/end_unchanged per
        buffer.

        * buffer.c (modify_overlay): Compute beg/end_unchanged
        per buffer.
        (Fget_buffer_create): Initialize new members of the buffer 
        structure.

1999-08-22  Gerd Moellmann  <gerd@gnu.org>

        * lisp.h: Add prototype for copy_hash_table and Fcopy_hash_table.

        * fns.c (Qkey, Qvalue): Renamed from Qkey_weak, and Qvalue_weak.
        (Qkey_value_weak):  Removed.
        (make_hash_table): Use nil, `key', `value', t for weakness.
        (Fmake_hash_table): Ditto.
        (copy_hash_table): New.
        (Fcopy_hash_table): New.

1999-08-22  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c: Call change_frame_size and do_pending_window_change with
        new parameter.  

1999-08-21  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (resize_mini_window): Do it for truncate-lines t as
        well.
        (redisplay_internal): Resize mini-window only if text might 
        have changed.
        (display_echo_area): Reset displayed echo_area_buffer to nil
        at the end if we're displaying a nil message.

1999-08-21  Gerd Moellmann  <gerd@gnu.org>
        
        * fns.c (hash_lookup): Test with EQ before calling key comparion
        function.
        (hash_remove): Ditto.
        (cmpfn_eq): Removed.
        (cmpfn_eql): Don't test with EQ.
        (cmpfn_equal): Ditto.
        (make_hash_table): Set comparison function for `eq' to null.

        * buffer.c, cmds.c, editfns.c, indent.c, insdel.c, buffer.h:
        Remove conditional compilation on NO_PROMPT_IN_BUFFER.

        * dispextern.h (NO_PROMPT_IN_BUFFER): Removed.

        * window.c, widget.c, process.c, keyboard.c, frame.c, xdisp.c,
        xterm.c: Call change_frame_size and do_pending_window_change with
        new parameter.

        * dispnew.c (do_pending_window_change): Add parameter `safe'.
        (change_frame_size): Ditto.
        (change_frame_size_1): Ditto.  Deley size changes if redisplaying
        and not called from a safe place.
        (window_change_signal): Call change_frame_size with new parameter.

        * dispextern.h: Change prototypes for do_pending_window_change
        and change_frame_size.

        * xfaces.c (face_at_buffer_position): Don't xassert that
        window's buffers equals current_buffer; this is not the 
        case during echo area display.

1999-08-21  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c, minibuf.c: Remove conditional compilation on
        NO_PROMPT_IN_BUFFER.

        * minibuf.c (Fminibuffer_prompt_end): New.
        (syms_of_minibuf): Defsubr it.  Remove
        minibuffer-prompt-in-buffer.
        (Fminibuffer_prompt_width): Return 0 if not in mini-buffer.
        Extend documentation.

        * xdisp.c (get_next_display_element): Display \r as ^M.

        * xterm.c (x_scroll_bar_create) [USE_TOOLKIT_SCROLL_BARS]: Clear
        under scroll bar widget.

1999-08-21  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (minibuffer_scroll_overlap): Removed because not used
        anywhere.
        (unwind_redisplay): Return nil.
        (clear_garbaged_frames): New.
        (redisplay_internal): Use it.
        (echo_area_display): Ditto.
        (resize_mini_window): Mew.
        (display_echo_area_1): Use it to resize echo area window.
        (redisplay_internal): Use it to resize active mini-window.

        * dispextern.h, lisp.h: Add function prototypes.

        * dispnew.c (set_window_cursor_after_update): Do the 
        cursor_in_echo_area case only for a mini-window showing
        a message.  Don't let cursor end up after the end of a row.

        * xdisp.c (echo_area_glyphs, echo_area_message,
        echo_area_glyphs_length, previous_echo_glyphs,
        previous_echo_area_message, previous_echo_area_glyphs_length):
        Removed.
        (Vmessage_stack, echo_area_buffer, echo_buffer,
        display_last_displayed_message_p, Vwith_echo_area_save_vector): New.
        (message2_nolog): Use set_message and clear_message.
        (message3): Rename parameter len to nbytes to make clear what
        it is.
        (message3_nolog): Ditto.  Use set_message and clear_message.
        (update_echo_area): Rewritten.
        (with_echo_area_buffer): New.
        (with_echo_area_buffer_unwind_data, unwind_with_area_buffer): New.
        (setup_echo_area_for_printing): New.
        (display_echo_area, display_echo_area_1): New.

        (current_message, current_message_1): New.
        (push_message, restore_message, pop_message, 
        check_message_stack): New.
        (truncate_echo_area): Rewritten.
        (truncate_message_1): New.
        (set_message, set_message_1, clear_message): New.
        (echo_area_display): Rewritten.
        (redisplay_internal): Check for needed echo area update
        differently.
        (redisplay_preserve_echo_area): Rewritten.
        (redisplay_window): Check for mini-window displaying echo area 
        message differently.
        (syms_of_xdisp): Initialize Vmessage_stack and echo area buffers.
        Remove initialzation of removed variables.
        (init_xdisp): Remove references to removed variables.

        * dispnew.c (adjust_frame_message_buffer): Removed references
        to echo_area_glyphs and previous_echo_glyphs.
        (direct_output_for_insert): Check for mini-window displaying
        echo area message differently.
        (update_frame): Likewise.
        (set_window_cursor_after_update): Likewise.  In echo area,
        don't try to set cursor on rows that aren't enabled.

        * print.c: Remove conditional compilation on `standalone'.
        (glyph_len, str_to_glyph_cpy, str_to_glyph_ncpy,
        glyph_to_str_cpy):  Remove that section because GLYPHs are no 
        longer used in that way.
        (PRINTDECLARE): Add multibyte.
        (PRINTPREPARE, PRINTFINISH): Handle printcharfun t differently.
        (printbufidx): Removed.
        (printchar, strout): Rewritten.

        * keyboard.c (ok_to_echo_at_next_pause): Make it a pointer to
        a struct kboard.
        (echo_kboard): New.
        (echo_now): Set echo_kboard to the current kboard.
        (cancel_echoing): Set echo_kboard to null.
        (cmd_error_internal): Use clear_message, remove references
        to echo_area_glyphs and echo_area_message.
        (command_loop_1): Check for echo area messages differently.
        (read_char): Likewise.
        (record_menu_key): Use clear_message.
        (Fexecute_extended_command):  Check for echo area messages
        differently.  Use push_message, restore_message, pop_message.

        * alloc.c (Fgarbage_collect): Use push_message, restore_message,
        pop_message.

        * emacs.c (shut_down_emacs): Call check_message_stack.

        * lisp.h: Add function prototypes and extern declarations for
        new functions and variables.

        * fileio.c (Fdo_auto_save): Use push_message, restore_message,
        pop_message.

        * minibuf.c (read_minibuf): Use clear_message instead of 
        setting echo_area_glyphs.
        (Fminibuffer_completion_help): Ditto.

        * editfns.c (Fcurrent_message): Rewritten.

        * frame.c, window.h: Remove references to echo_area_glyphs
        and previous_echo_glyphs.

1999-08-21  Dave Love  <fx@gnu.org>

        * aix3-2-5.h (C_DEBUG_SWITCH): Use -g -O.
        * aix4-1.h: Likewise.

        * irix6-5.h (C_DEBUG_SWITCH): Set for debug and optimize.

1999-08-20  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c: Remove tiff34 prefix from include.

1999-08-20  Dave Love  <fx@gnu.org>

        * cm.c: Revert previous change.

1999-08-19  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (XTset_vertical_scroll_bar): Fix previous change.  Clear
        under scroll bar with width FRAME_SCROLL_BAR_COLS.

1999-08-18  Dave Love  <fx@gnu.org>

        * callproc.c, filelock.c, insdel.c, sysdep.c, xmenu.c: Use
        stdlib.h.

        * doprnt.c: Use stdlib.h, unistd.h.

        * config.in: Add HAVE_TERMCAP_H.

        * cm.c: Use termcap.h.

1999-08-18  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_window) [USE_X_TOOLKIT]: Remove test for
        FRAME_X_WINDOW (f) being null at the of the function.  If widgets
        cannot be created we will already have crashed earlier.  Call
        lw_set_main_areas with a null menu-bar widget, so that we have
        a reasonable default.
        (Fx_create_frame): Rearranged so that Lisp errors during frame
        initialization cause less damage.  Initialize menu bar widget
        here.

1999-08-18  Gerd Moellmann  <gerd@gnu.org>
        
        * dispnew.c (update_frame_line): Fix previous change.  If writing
        whole line clear to end of frame.

1999-08-17  Gerd Moellmann  <gerd@gnu.org>

        * window.c (Fcoordinates_in_window_p): Return `left-bitmap-area'
        and `right-bitmap-area' if position is in the bitmap areas.  This
        avoids an error when clicking on the bitmap areas.  Instead, they
        are currently treated like clicks inside the window.
        (coordinates_in_window): Return 5 and 6 for bitmap areas.
        (Qleft_bitmap_area, Qright_bitmap_area): New.
        (syms_of_window): Initialize new symbols.

        * dispnew.c (update_frame_line): If writing whole line,
        don't write trailing spaces unless we must.

        * xdisp.c (unwind_redisplay): New.  Resets flag redisplaying_p.
        (redisplay_internal): Register unwind_redisplay with
        register_unwind_protect.
        (try_window_reusing_current_matrix): If new start > old start,
        give up if start pos of first reusable row is not equal to new
        start.

        * eval.c (Fsignal): Don't reset redisplaying_p here.

        * xterm.c (expose_area): If row extends face to end of line,
        write the whole line.

1999-08-16  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (struct it): Remove member
        show_trailing_whitespace_p.

        * dispnew.c (direct_output_for_insert): Use
        Vshow_trailing_whitespace instead of former iterator member
        show_trailing_whitespace_p.
        (direct_output_forward_char): Don't do it if hightlighting
        trailing whitespace.

        * xdisp.c (Qshow_trailing_whitespace): Removed.
        (Vshow_trailing_whitespace): Added.
        (init_iterator): Remove initialization code for
        show_trailing_whitespace_p.
        (redisplay_internal): Don't try cursor movement in this_line
        if showing trailing whitespace.
        (redisplay_window): Likewise for cursor movement in current
        matrix and try_window_id.
        (try_window_reusing_current_matrix): Likewise.
        (trailing_whitespace_p): Return 0 if trailing whitespace is
        in front of point.
        (display_line): Use Vshow_trailing_whitespace instead of
        former iterator member show_trailing_whitespace_p.
        (syms_of_xdisp): Add DEFVAR_LISP for show-trailing-whitespace.

1999-08-16  Gerd Moellmann  <gerd@gnu.org>

        * window.c (Fpos_visible_in_window_p): Rewritten.

        * xfaces.c (add_to_log): Renamed from display_message.
        Don't display messages in echo area.

        * xterm.c (x_draw_glyph_string_box): Use the background width
        of the glyph string for the width of the box.

1999-08-16  Stefan Monnier  <monnier@cs.yale.edu>

        * syntax.c (Fforward_comment): Set comstyle for Scomment_fence.

1999-08-16  Geoff Voelker  <voelker@cs.washington.edu>

        * xfns.c, w32fns.c (x_set_frame_parameters): Set foreground and
        background first, and then set other parameters that might
        depend upon their new values.

1999-08-15  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Vfont_list_limit): New.
        (syms_of_xfaces): Make it a user-variable.
        (DEFAULT_FONT_LIST_LIMIT): New.
        (sorted_font_list): If Vfont_list_limit is an integer > 0, list
        maximally that number of fonts, otherwise use
        DEFAULT_FONT_LIST_LIMIT.
        (Fx_font_family_list): Bind `font-list-limit' to higher values 
        until we have all fonts.
        (Fxfont_list): Additionally return the full names of fonts and
        their registry and encoding.

        * xterm.c (XTset_vertical_scroll_bar) [USE_TOOLKIT_SCROLL_BARS]: 
        Simplify clearing "under" scroll bar.

        * window.c (Qfixed_window_size): New.
        (syms_of_window): Initialiaze it.
        (check_all_windows): Add return type void.
        (window_fixed_size_p): New.  Return non-zero if window
        is fixed-size.
        (window_min_size_1): New.
        (window_min_size): Handle fixed-size windows.
        (size_window): New. Rewritten combination of set_window_height and
        set_window_width that handles fixed-size windows.
        (set_window_height): Call it.
        (set_window_width): Call it.
        (Fsplit_window): Give an error on attempt to split a fixed-size
        window.
        (change_window_height): Partly rewritten to handle fixed-size
        windows.

1999-08-13  Wolfgang Rupprecht  <wolfgang@wsrcc.com>

        * process.c (Fopen_network_stream): Fix previous change.

1999-08-13  Karl Heuer  <kwzh@gnu.org>

        * xdisp.c (line_number_display_limit_width): New var.
        (decode_mode_spec): Use it instead of hardcoded value.
        (syms_of_xdisp): Defvar it.

1999-08-13  Richard M. Stallman  <rms@gnu.org>

        * eval.c (run_hook_list_with_args): Gcpro `globals'.
        (run_hook_with_args): Likewise.

        * window.h (struct window): New field too_small_ok.

        * window.c (set_window_height, set_window_width): 
        If window starts out "too small", set its too_small_ok flag.
        If window's too_small_ok flag is set, don't delete it
        unless it is so small it would cause a crash.

1999-08-13  Gerd Moellmann  <gerd@gnu.org>

        * window.c (MINSIZE): Removed.
        (window_min_size): New.
        (set_window_height): Use window_min_size.
        (change_window_height): Ditto.

1999-08-12  Gerd Moellmann  <gerd@gnu.org>

        * indent.c (vmotion): Don't add in mini-buffer prompt width
        if prompts are inserted into mini-buffer.

1999-08-12  Wolfgang Rupprecht  <wolfgang@wsrcc.com>

        * config.in: Add HAVE_GETADDRINFO.
        * process.c (Fopen_network_stream): Use getaddrinfo.

1999-08-11  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (get_overlay_arrow_glyph_row): Set the charpos of
        glyphs to -1.

        * xdisp.c (face_before_or_after_it_pos): If position after
        or before iterator's current position in the buffer is out
        of bounds, return the iterator's original face id.

        * dispnew.c (mirror_make_current): If desired row isn't enabled,
        just swap glyphs pointers between current and desired row.
        (build_frame_matrix_from_leaf_window) [GLYPH_DEBUG]: Copy
        desired matrix method string to current matrix.

1999-08-11  Kenichi Handa  <handa@etl.go.jp>

        * lisp.h (CHAR_MODIFIER_MASK): New macro.

        * lread.c (read_escape): For Control modifier, pay attention to
        multibyte character.
        (read1): Likewise.  Singal error or a multibyte character which
        has a modifer bit.  Check validity of Shift modifer.

        * charset.c (non_ascii_char_to_string): Handle modifier bits as
        the same as Lisp reader.

1999-08-10  Richard M. Stallman  <rms@gnu.org>

        * charset.h (BCOPY_SHORT): Fix typo `unsigined'.

1999-08-10  Alexandre Oliva  <oliva@dcc.unicamp.br>

        * unexelf.c [__linux__ && __alpha__] (HAS_SBSS_SECTION): Define.

1999-08-10  Eli Zaretskii  <eliz@gnu.org>

        * msdos.c (IT_set_face): Abort if the default face is not realized
        and cached.
        (IT_write_glyphs): Reset the screen face to the default face
        before writing glyphs.

        * xfaces.c (realize_default_face) [MSDOS]: Don't take default
        colors from the frame here.
        (realize_tty_face) [MSDOS]: Do it here.  Update the face
        attributes with the actual name of the color taken from the
        frame.

        * dosfns.c (msdos_stdcolor_name): Remove const from return value.
        * dosfns.h (msdos_stdcolor_name): Ditto for the prototype.

        * frame.c (Fframe_parameters): Swap foreground and background
        colors returned in frame parameters if the frame has reverse in
        its parameter alist.
        (Fmake_terminal_frame): Make a unique copy of face_alist for
        each frame.

1999-08-07  Richard Stallman  <rms@gnu.org>

        * buffer.c (Fprevious_overlay_change): Just return
        the answer obtained from overlays_at.

        * xfns.c (xpm_load) [!XpmAllocCloseColors]:
        Use XpmCloseness and attrs.closeness instead.

1999-08-06  Richard Stallman  <rms@gnu.org>

        * lread.c (Feval_buffer): New arg DO_ALLOW_PRINT.

1999-08-06  Geoff Voelker  <voelker@cs.washington.edu>

        * dired.c (directory_files_internal, Fdirectory_files_and_attributes, 
        Ffile_attributes_lessp): New functions.
        (Fdirectory_files): Use directory_files_internal.
        (syms_of_dired): Initialize Fdirectory_files_and_attributes,
        Ffile_attributes_lessp.

        * w32.c (stat): Check for directory ending in separator when
        doing readdir fast path.

        * w32fns.c (x_set_icon_type): Support setting frame icons.
        * w32term.c (x_bitmap_icon): New function.
        (x_make_frame_visible, x_iconify_frame): Invoke x_bitmap_icon.
        
1999-08-06  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (set_iterator_to_next): After delivering a character
        from a display vector, restore face and charset to what they were
        before the display vector was processed.

1999-08-06  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (reseat_at_next_visible_line_start): New parameter
        on_newline_p.
        (set_iterator_to_next):  After delivering last char
        from display vector, reseat on next visible line start if 
        dpvec_char_len < 0.
        (next_element_from_buffer): Set dpvec_char_len to -1 for
        selective display.

1999-08-06  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (compute_line_metrics): If first line's physical ascent
         is larger than its logical ascent, use the physical ascent, and
         make the row taller.  Set row's overlapping_p flag.

        * dispnew.c (redraw_overlapping_rows): Use flag overlapping_p.
        (direct_output_for_insert): Ditto.

        * dispextern.h (struct glyph_row): Add overlapping_p.

        * xterm.c (x_draw_phys_cursor_glyph): Redraw overlaps.

        * dispextern.h (MATRIX_ROW_OVERLAPS_PRED_P): New.
        (MATRIX_ROW_OVERLAPS_SUCC_P): New.

        * dispnew.c (direct_output_for_insert): Don't use this method if
        row is overlapped by others.
        (update_text_area): Write full line if current line is overlapped.
        (redraw_overlapped_rows): New.
        (update_window): Call it.
        (redraw_overlapping_rows): New.
        (update_window): Call it.
        (scrolling_window): Make sure overlapped_p flag in current rows is
        unchanged.
        (row_equal_p): Take rows overlapped_p flag into account.

        * dispextern.h (struct glyph_row): Add flag overlapped_p.

        * xterm.c (x_fix_overlapping_area): New.
        (x_redisplay_interface): Add x_fix_overlapping_area.

        * dispnew.c (adjust_glyphs): Block input while adjusting matrices.

1999-08-06  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_draw_glyphs): Add parameter overlaps_p.
        (struct glyph_string): Add member for_overlaps_p.
        (x_get_glyph_string_clip_rect): If glyph string draws foreground
        of overlapping rows, clip to window bottom.
        (x_fill_glyph_string): Add parameter overlaps_p.
        (x_fill_composite_glyph_string): Ditto.
        (BUILD_GLYPH_STRINGS): Ditto.
        (BUILD_CHAR_GLYPH_STRINGS): Ditto.
        (x_draw_glyph_string): Don't draw anything but the foreground
        if glyph string draws row overlaps.

        * dispnew.c (direct_output_for_insert): Don't use this
        optimization for rows that overlap others.
        (update_window_line): Return non-zero if display has changed.
        (update_text_area): Ditto.
        (update_window): Record if display has been changed.

        * dispextern.h (MATRIX_ROW_OVERLAPPING_P): New.

        * dispextern.h (struct redisplay_interface): Add
        fix_overlapping_area.

        * xterm.c (x_append_glyph): Set glyph flag overlaps_vertically_p.

        * dispextern.h (struct glyph): Add overlaps_vertically_p.

        * xterm.c (x_produce_image_glyph): Compute iterator's physical
        ascent and descent.
        (x_produce_stretch_glyph): Ditto.
        (x_produce_glyphs): Ditto.

        * xdisp.c (init_iterator): Reset physical line height info
        after producing special glyphs.
        (display_toolbar_line): Set physical line height info.
        (compute_line_metrics): Ditto.
        (display_line): Ditto.
        (display_string): Ditto.

        * term.c (produce_glyphs): Set iterator's physical height
        information.

        * dispnew.c (blank_row): Compute glyph row's physical height.
        (row_equal_p): Take physical row heights into account.
        (direct_output_for_insert): Ditto.
        (update_text_area): Ditto.

        * dispextern.h (struct glyph_row): Add phys_ascent and
        phys_height.
        (struct it): Add phys_ascent, phys_descent, max_phys_ascent,
        max_phys_descent.

1999-08-04  Stefan Monnier  <monnier@cs.yale.edu>

        * buffer.c (switch_to_buffer_1): New subroutine, taken out from
        Fswitch_to_buffer.
        (no_switch_buffer): New function.
        (Fswitch_to_buffer): Call them.  Don't get confused
        by "same-window" buffers in a dedicated frame.

        * window.c (display-buffer): Don't get confused
        by "same-window" buffers in a dedicated frame.

1999-08-04  Andreas Schwab  <schwab@gnu.org>

        * insdel.c (insert_from_string_1): Check gap size against number
        of outgoing bytes, not incoming bytes.

1999-08-03  Tom Breton  <tob@world.std.com>

        * lread.c (read1): Added circular reading code to #N=.
        (SUBSTITUTE): New macro.
        (seen_list): New variable.
        (substitute_object_in_subtree): New function.
        (substitute_object_recurse): New function.
        (substitute_in_interval): New function.

1999-08-02  Eli Zaretskii  <eliz@gnu.org>

        * Makefile.in (frame.o, sysdep.o, xfaces.o): Depend on dosfns.h.

        * frame.c (make_terminal_frame): Don't call init_frame_faces if
        noninteractive, for termcap frames as well.

        * sysdep.c (init_sys_modes): Call init_frame_faces for termcap
        frames.

1999-08-01  Richard Stallman  <rms@gnu.org>

        * fns.c (internal_equal): Correct overlay comparison.

1999-07-31  Richard M. Stallman  <rms@caffeine.ai.mit.edu>

        * xfns.c (x_set_internal_border_width): 
        Call do_pending_window_change.  Don't block input, don't call XFlush.
        (x_set_vertical_scroll_bars): Call do_pending_window_change.
        (x_set_scroll_bar_width, x_set_font): Likewise.

        * frame.c (Fset_frame_height): Call do_pending_window_change.
        (Fset_frame_width, Fset_frame_size): Likewise.

        * xterm.c (x_set_window_size): When calling change_frame_size,
        specify 1 for DELAY.

        * widget.c (EmacsFrameSetCharSize): Don't call
        do_pending_window_change here.

1999-07-30  Dave Love  <fx@gnu.org>

        * config.in: Add HAVE_STDLIB_H.

1999-07-30  Richard M. Stallman  <rms@gnu.org>

        * process.c (create_process): Detect failure of `pipe'.

1999-07-30  Keisuke Nishida  <kei@psn.net>

        * alloc.c (allocate_vectorlike): Add missing increment.

        * data.c (Fdefalias): Call Ffset instead of duplicating code.

        * keymap.c (get_keymap_1, get_keyelt): Check the type of OBJECT
        before calling indirect_function.

1999-07-30  Eli Zaretskii  <eliz@gnu.org>

        * dispextern.h (load_color, lookup_derived_face): Declare
        prototypes.

        * dispnew.c (init_display) [MSDOS]: Don't initialize frame faces,
        it will be done later.

        * frame.c (make_terminal_frame) [MSDOS]: Don't call
        init_frame_faces if non-interactive.
        (Fframe_parameters) [MSDOS]: Replace indexing into colornames[]
        array with a call to msdos_stdcolor_name.  The font name is now
        "ms-dos", consistent with realize_tty_face.

        * keyboard.c (cmd_error_internal): Don't kill Emacs if this is an
        MSDOS frame.

        * window.c (Fset_window_configuration) [MSDOS]: Don't call
        x_set_toolbar_lines.

        * xfaces.c (load_color): Remove static from definition and remove
        prototype.
        [MSDOS]: Add a DOS-specific version of load_color.
        (lookup_face): Replace FRAME_TERMCAP_P with !FRAME_WINDOW_P.
        (lookup_derived_face): New function.
        (realize_default_face): Support MSDOS frames.
        [MSDOS]: If fore/background colors are unspecified, inherit them
        from the frame.
        (realize_face): Support MSDOS frames.
        (realize_tty_face): Support MSDOS frames.
        [MSDOS]: If the face color is not in Vface_tty_color_alist, call
        load_color to try to find a suitable approximation.  If the face
        is inverse-video, swap the foreground and background colors.

        * dosfns.c (msdos_stdcolor_name, msdos_stdcolor_idx): New
        functions.

        * dosfns.h (msdos_stdcolor_name, msdos_stdcolor_idx): Declare.

        * msdos.h: Remove redundant declarations (most of them are now in
        dispextern.h).

        * msdos.c (IT_set_face): Rewritten for the new redisplay engine.
        Use default frame colors if the face doesn't specify them; invert
        the colors if highlight is ON.
        (IT_write_glyphs): Rewritten for the new redisplay engine.
        (IT_change_line_highlight): Add (unused) parameter Y, since that's
        how the hook is called by term.c.
        (IT_copy_glyphs): New function, copies an area of the display in
        video RAM.
        (IT_insert_glyphs): Rewritten to DTRT instead of aborting, since
        redisplay now calls it even if char_ins_del_ok is zero.
        (IT_set_frame_parameters): Prototype changed.  Calls the new
        load_color.  Puts the new fore/background colors into the default
        face on current frame.
        (IT_menu_display): Rewritten to handle the new struct glyph
        instead of a char array.
        (XMenuActivate): Call lookup_derived_face to create and use
        special faces for the pop-up and drop-down menus.

1999-07-29  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_set_toolkit_scroll_bar_thumb): Don't call
        XawScrollbarSetThumb if thumb parameters haven't changed because
        that function apparently isn't optimized for this case.

1999-07-29  Eli Zaretskii  <eliz@gnu.org>

        * msdos.c (getdefdir): Don't return failure indication when
        _fixpath sets errno to ENOSYS.

1999-07-28  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (string_char_and_length): New.  Use it everywhere
        instead of STRING_CHAR_AND_LENGTH in xdisp.c.

1999-07-28  Kenichi Handa  <handa@etl.go.jp>

        * fns.c (count_combining): New function.
        (struct textprop_rec): New structure.
        (concat): Copy text properties correctly when byte combining
        occurs.

1999-07-28  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_setup_relief_color): Don't try smart color allocation
        if display is mono.
        (x_draw_row_bitmaps): If face has stipple, don't switch
        to foreground color for clearing areas, and set the fill style.

        * xfaces.c (load_face_colors): Load background color if setting
        stipple, too.
        (prepare_face_for_display): Use FillOpaqueStippled instead of 
        FillStippled.

1999-07-26  Ken'ichi Handa  <handa@gnu.org>

        * xterm.c (x_find_ccl_program): Add casting.

        * w32fns.c (w32_find_ccl_program): Add casting.

1999-07-27  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (struct glyph_row): Flag internal_border_p removed.

        * xfns.c (x_create_tip_frame): Don't set bitmapIcon resource
        because this will try to access a nonexisting widget.

1999-07-26  Markus Rost  <rost@gnu.org>

        * fns.c (Fgethash): Fix order of variables (patch by gerd). 
        (Fputhash): Ditto.
        (Fremhash): Ditto.

1999-07-26  Gerd Moellmann <gerd@gnu.org>
        
        * widget.c (EmacsFrameSetCharSize): Don't add XtNborderWidth
        value to frame width and height.

        * xterm.c (x_get_glyph_string_clip_rect): Take internal border
        into account for full-width windows.  Don't add scroll bar width
        to width of clip rect.
        (x_draw_glyph_string_box): Add 1 to right x of full width lines.
        (x_set_glyph_string_background_width): Add 1 to background width.
        (x_draw_glyphs): Take internal border into account for full-width
        lines.

1999-07-26  Richard M. Stallman  <rms@gnu.org>

        * xfns.c (x_set_mouse_color): Always unload the old color.
        Don't allow nil as color value.
        (x_set_cursor_color, x_set_background_color, x_set_foreground_color): 
        Always unload the old color.

        * indent.c (Fmove_to_column): Extend end of line only if FORCE is t.

1999-07-26  Karl Heuer  <kwzh@gnu.org>

        * fns.c (Fy_or_n_p): Doc fix.

1999-07-26  Kenichi Handa  <handa@etl.go.jp>

        * ccl.h (setup_ccl_program): The type is changed to `int'.

        * ccl.c (ccl_driver) <CCL_Call>: Now CCL program ID to call may be
        stored in the following CCL code.  Adjusted for the change of
        Vccl_program_table.
        (resolve_symbol_ccl_program): Adjusted for the new style of
        embedded symbols (SYMBOL . PROP) in CCL compiled code.   Return Qt
        is resolving failed.
        (ccl_get_compiled_code): New function.
        (setup_ccl_program): Function type changed from `void' to `int'.
        Resolve symbols in CCL_PROG.
        (Fccl_program_p): New function.
        (Fccl_execute): Get compiled CCL code by just calling
        setup_ccl_program.
        (Fccl_execute_on_string): Likewise.
        (Fregister_ccl_program): Adjusted for the change of
        Vccl_program_table.

        * coding.c (setup_coding_system): Get compiled CCL code by just
        calling setup_ccl_program.

        * xterm.c (x_find_ccl_program): Get compiled CCL code by just
        calling setup_ccl_program.

        * w32fns.c (w32_find_ccl_program): Get compiled CCL code by just
        calling setup_ccl_program.

1999-07-23  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (frame_update_line_height): Just use the height of the
        frame's fontset or font, instead of taking face fonts into
        account.

        * xdisp.c (get_next_display_element): Display DEL as `^?'.

1999-07-23  Richard M. Stallman  <rms@gnu.org>

        * window.c (Fsplit_window): For default size, round up for left window.

1999-07-21  Joe Ramey  <ramey@ti.com>

        * filelock.c (lock_if_free): Return -1 if check_lock_owner
        has returned -1 (lockfile exists but is not a symlink?).

1999-07-20  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_draw_bar_cursor): Use scratch_cursor_gc to
        because of a change in cursor_gc made in 20.4.

1999-07-19  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_calc_absolute_position): Subtract menu bar height
        for YNegative, if using X toolkit.

        * xfns.c (x_real_positions): Don't subtract window borders 
        from positions returned.

1999-07-17  Gerd Moellmann  <gerd@gnu.org>

        * xrdb.c (x_load_resources): Set double-click time defaults
        for Motif list boxes from double-click-time.

        * fns.c (Vhash_table_tests): Remvoed.
        (Qhash_table_test): New.
        (syms_of_fns): Initialize Qhash_table_test.
        (Fmake_hash_table): Look up user-defined tests in symbol prop
        `hash-table-test'.
        (Fdefine_hash_table_test): Store test and hash function as
        symbol prop `hash-table-test'.
        (make_hash_table): Add parameters user_test and user_hash.

        * window.c (set_window_buffer): Set window margins for tty
        frames, too.
        (Fset_window_margins): Ditto.

        * term.c (append_glyph): Use glyph area of iterator instead of
        always TEXT_AREA.

        * dispnew.c (update_frame_1): Add left margin width to cursor
        hpos.
        (direct_output_for_insert): Ditto.
        (direct_output_forward_char): Ditto.

        * dispnew.c (adjust_glyph_matrix): Set glyph matrix' top_line_p.

        * dispextern.h (struct glyph_matrix): Add top_line_p.

1999-07-16  Gerd Moellmann  <gerd@gnu.org>

        * frame.h (FRAME_WINDOW_REDISPLAY_P): Removed.  Use FRAME_WINDOW_P
        instead.

        * fns.c (cmpfn_eq): Add hash code parameters.
        (cmpfn_eql): Ditto.
        (cmpfn_equal): Ditto, and compare hash codes before calling Fequal.
        (cmpfn_user_defined): Likewise.

1999-07-15  Gerd Moellmann  <gerd@gnu.org>

        * lisp.h (DEFAULT_REHASH_THRESHOLD): Changed to 0.8.

        * fns.c (maybe_resize_hash_table): Correct computation of
        index vector size.
        (make_hash_table): Ditto.
        (Fmakehash): New.

        * xdisp.c (echo_area_display): Don't call redraw_garbaged_frames.

        * alloc.c (gc_sweep): Call sweep_weak_hash_tables.
        (survives_gc_p): Make it externally visible.
        (mark_object): Ditto.

        * fns.c (remove_hash_entry): Removed.
        (sweep_weak_hash_tables): New.

        * print.c (print): Print more information about hash tables.

        * xfns.c (image_spec_hash): Removed.
        (lookup_image): Use sxhash instead of image_spec_hash.
        (image_spec_equal_p): Removed.
        (lookup_image): Use Fequal instead of image_spec_equal_p.

1999-07-14  Gerd Moellmann  <gerd@gnu.org>

        * lisp.h (P_): Moved to top of file.

        * fns.c (make_hash_table): Set new members.

        * alloc.c (mark_object): Mark hash table's user_hash_function.
        Mark index vector for weak hash tables.

        * lisp.h (struct Lisp_Hash_Table): Add user_cmp_function,
        user_hash_function, cmpfn, and hashfn.

        * fns.c (build_hash): Removed.
        (hash_test): Removed.
        (cmpfn_eq, cmpfn_eql, cmpfn_equal, cmpfn_user_defined): New.
        (hashfn_eq, hashfn_eql, hashfn_equal, hashfn_user_defined): New.

1999-07-13  Gerd Moellmann  <gerd@gnu.org>

        * alloc.c (survives_gc_p): New.

        * print.c (print): Add hash table handling.

        * alloc.c (mark_object): Add code to mark hash tables.

        * lisp.h (GC_HASH_TABLE_P): New.

        * emacs.c (main): Call init_fns.

        * fns.c (init_fns): New.

        * fns.c: Add hash table implementation.

        * lisp.h (PVEC_HASH_TABLE): New.
        (struct Lisp_Hash_Table): New.
        (XHASH_TABLE): New.
        (XSET_HASH_TABLE): New.
        (HASH_TABLE_P): New.
        (CHECK_HASH_TABLE): New.
        (DEFAULT_HASH_SIZE): New.
        (DEFAULT_REHASH_THRESHOLD): New.
        (DEFAULT_REHASH_SIZE): New.

        * xterm.c (x_draw_glyphs): Add parameters real_start and real_end.
        (x_write_glyphs): Compute overwritten cursor using real start
        and end positions of display.
        (x_insert_glyphs): Ditto.

1999-07-10  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (read_char): Use message3_nolog to show help-echo.

        * dispnew.c (blank_row): Add y-position as parameter.  Compute
        visible height.

        * xdisp.c (next_element_from_string): Give padding spaces
        a position of -1.

        * dispnew.c (adjust_glyph_matrix): Some work to support 
        marginals areas on tty frames in a future version.
        (allocate_matrices_for_frame_redisplay): Ditto.

        * xdisp.c (display_line): At ZV, set glyph row's displays_text_p
        to zero if number of glyphs in the row is <= 1.

1999-07-09  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (buffer_posn_from_coords): Take left marginal area
        into account.

        * xdisp.c (handle_display_prop): Don't reset area if handing
        a property from a string that came from a `display' property.
        (handle_single_display_prop): Don't handle recursive `display'
        properties.
        (handle_single_display_prop): Handle some display property
        forms for terminal frames.
        (Qimage): Moved here from xfns.c.

        * dispextern.h (struct it): New field string_from_display_prop_p.

        * xterm.c (x_clip_to_row): Don't let clip_rect include top
        line.

1999-07-08  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (handle_single_display_prop): Handle `:when FORM'.

        * window.c (set_window_buffer): Set window's vscroll to zero.

        * xdisp.c (QCwhen): New.
        (display_prop_end): New.
        (handle_single_display_prop): Use it.
        (debug_method_add): Print buffer name if tracing.
        (try_window_reusing_current_matrix): Compute visible height
        of reused rows.  Fix cursor position calculation in case of
        top-line.

        * dispextern.h (struct redisplay_interface): Add parameter
        cursor_on_p to update_window_end_hook.

        * xterm.c (x_update_window_end): Add parameter cursor_on_p.

1999-07-07  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (redisplay_internal): Ensure that redisplayinp_p 
        doesn't become negative when decrementing it.

        * eval.c (Fsignal): Reset redisplaying_p to zero.

        * xdisp.c (try_window_reusing_current_matrix): Call hooks
        for window update.
        (try_window_id): Ditto.

        * xterm.c (x_clear_end_of_line): Handle top-line correctly.
        (x_scroll_run): Ditto.
        (any_help_event_p): New.
        (x_initialize): Set it to zero.
        (XTread_socket): Clear help echo only if any_help_event_p.

        * xdisp.c (init_iterator): Set top_line_p.
        (start_display): Use correct initial y if top-line is present.
        (make_cursor_line_fully_visible): Bug fixes for top-line.
        (try_scrolling): Ditto.
        (try_window_reusing_current_matrix): Ditto.

        * dispextern.h (struct it): Add top_line_p.

        * dispnew.c (shift_glyph_matrix): Move some computations out
        of the loop.

        * dispnew.c (margin_glyphs_to_reserve): Use NUMBERP and 
        XFLOATINT.

1999-07-06  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (update_frame_1): When setting cursor in echo area,
        skip only over padding spaces at the end.

        * xfaces.c (realize_tty_face): Set face's font_name field to
        "tty".

        * term.c (update_end): Turn cursor on only if selected window's
        cursor_off_p flag is not set.

1999-07-05  Gerd Moellmann  <gerd@gnu.org>

        * term.c (TS_cursor_visible): Renamed from TS_visual_mode.
        (TS_cursor_normal): Renamed from TS_end_visual_mode.
        (TS_cursor_invisible):  New.
        (term_init): Initialize TS_cursor_invisible.
        (tty_hide_cursor): New.
        (tty_show_cursor): New.
        (update_end): Show tty cursor.
        (update_begin): Hide tty cursor to prevent cursor flickering
        during redisplays triggered by timers (stealth fontification).

        * keyboard.c (make_lispy_event) <TOOLBAR_EVENT>: Apply modifiers.

        * xterm.c (XTread_socket) [USE_MOTIF] <KeyPress>: Catch events
        in scroll bars.
        (x_handle_toolbar_click): Set modifier bits.

1999-07-04  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (kbd_store_ptr): Declare it as a volatile pointer
        instead of a pointer to a volatile input_event.
        (kbd_buffer_store_event): Remove volatile modifier from 
        declaration of local variable `sp'.
        (Fdiscard_input): Don't cast when assigning kbd_store_ptr
        to kbd_fetch_ptr.

1999-07-03  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (try_window_id): Set beg_unchanged and end_unchanged
        only if buffer is modified.  Return quickly if changes are
        above window start.

1999-07-02  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (HSCROLL_WINDOWS): Removed.

        * xdisp.c (mark_window_display_accurate): Don't set
        w->region_showing.
        (redisplay_internal): Don't call redraw_garbaged_frames.

1999-07-01  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (echo_area_display): Don't display truncation marks
        for messages because 20.4 doesn't do it either.
        (redisplay_window): Case same window start.  Instead of giving
        up when cursor is partially visible, make it fully visible.
        (mark_window_display_accurate): Some cleanup.  Record window's
        last cursor information.
        (debug_method_add): Improved.
        (redisplay_internal): Record last cursor info only if not
        consider_all_windows_p.

        * dispnew.c (update_window): Update top line after scrolling.
        (blank_row): Renamed from make_empty_enabled_row.
        (increment_glyph_row_buffer_positions): Increment positions
        in buffers, only.

        * window.c (Fcoordinates_in_window_p): Add top-line to doc
        string.

1999-06-30  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (update_window): Check that updated row is visible.

        * xterm.c (x_draw_row_bitmaps): Check for invisible rows at
        top of window differently.

        * xdisp.c (try_window_reusing_current_matrix): Don't do it
        if region is showing.

        * dispnew.c (adjust_glyph_matrix): Check w->vscroll when
        avoiding matrix reallocation.  Set window_vscroll in matrix.

        * dispextern.h (struct glyph_matrix): Add member window_vscroll.

        * lwlib-Xm.c: Add function prototypes.

        * xdisp.c (debug_method_add): New.
        (debug_redisplay_method): Removed.
        (try_window_reusing_current_matrix): Handle case where old
        window start is the same as new window start.

        * dispextern.h (struct glyph_matrix) [GLYPH_DEBUG]: Make `method'
        an array instead of a pointer.

        * lwlib-Xm.c (xm_update_label): Use val->name to look up
        a label string from resources.
        (xm_update_label): Add some comments.

        * xfns.c (Fx_show_tip): Undo previous change.

        * xterm.c (x_append_glyph): Clear glyph->u.val.

        * dispextern.h (struct glyph): Increase size of face_id bit-field
        for CHAR_GLYPH to 12.

1999-06-29  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (x_charset_registry): Make it externally visible.

1999-06-28  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (update_window): Use mode_line_p flag of rows 
        instead of WINDOW_WANTS_MODELINE_P.

        * xterm.c (clear_mouse_face): Make externally visible.

        * xfns.c (Fx_show_tip): Clear mouse face before showing tip.

        * xterm.c (expose_line): Handle exposure of top-lines.

        * xterm.c (XTframe_up_to_date): Don't call note_mouse_highlight
        if mouse_face_mouse_frame is null.

        * xdisp.c (redisplay_window): If window is echo_area_window,
        and update_mode_line is set, update menubar and toolbar.

        * dispnew.c (space_glyph): Set its charpos to -1.
        (update_frame_1): Ignore trailing padding spaces.

        * xdisp.c (next_element_from_c_string): Set position of padding
        glyphs to -1.

1999-06-27  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_laplace_read_row): Use XQueryColors instead of
        XQueryColor.

        * xdisp.c (display_menu_bar): Remove unwarranted assertion.
        (set_cursor_from_row): Skip over glyphs having a null object at
        the start of rows.
        (insert_left_trunc_glyphs): Use charpos < 0 to indicate truncation
        glyphs.
        (handle_invisible_prop): Compute next change only when needed.
        (handle_face_prop): Don't correct DEFAULT_FACE_ID if in the mode
        line.

1999-06-26  Gerd Moellmann  <gerd@gnu.org>

        * xrdb.c (x_load_resources): Don't set resource for double-click
        time.

        * xdisp.c (try_window_id): Return quickly if all changes are
        below the window's current matrix end.

        * dispextern.h (MATRIX_ROW_PARTIALLY_VISIBLE_P): Remove window
        parameter.

        * xdisp.c (try_window_reusing_current_matrix): Set no_scrolling_p
        in desired not in current matrix.
        (try_window_reusing_current_matrix): Rotate matrices starting
        at start_vpos instead of 0.

        * xterm.c (expose_window): Use window_text_bottom_y.
        (fast_find_position): Ditto.

        * xdisp.c (redisplay_window): Use window_text_bottom_y.
        (try_window_reusing_current_matrix): Ditto.
        (get_last_unchanged_at_beg_row): Ditto.
        (init_iterator): Ditto.

        * dispnew.c (allocate_matrices_for_window_redisplay): Allocate one
        more row.
        (check_matrix_invariants): Use window_text_bottom_y.
        (update_window): Ditto.
        (scrolling_window): Ditto.

        * xdisp.c (window_text_bottom_y): New.

1999-06-25  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (XTread_socket): Set mouse_face_frame to zero after
        clearing mouse face.
        (XTread_socket) <EnterNotify> [LESSTIF_VERSION]: If
        event.xcrossing.focus is not set, and focus is in the menu bar,
        set focus frame as if event.xcrossing.focus were set.

1999-06-24  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (make_lispy_event): Handle mouse on top lines.
        * keyboard.c (make_lispy_movement): Ditto.

        * window.c (coordinates_in_window): Return 4 if on top line.
        (Fcoordinates_in_window_p): Return `top-line' if on top line.

        * xdisp.c (window_box_height): Subtract top line height.
        (window_box): Add top line height to top y position if top line
        exists.
        (init_iterator): If base_face_id is TOP_LINE_FACE_ID, set row to
        the top line row of the window.  Set initial y-position to
        window's top line height plus delta.
        (start_display): Choose start glyph row depending on whether
        window has a top line.
        (try_scrolling): Take top line height into account for aggressive
        scrolling.
        (compute_window_start_on_continuation_line): Take top line into
        account.
        (redisplay_window): Ditto.  If top line height has changed, 
        trigger a new redisplay.
        (try_window_reusing_current_matrix): Take top line into account.
        (find_last_row_displaying_text): Ditto.
        (get_last_unchanged_at_beg_row): DItto.
        (try_window_id): Ditto.
        (compute_line_metrics): Ditto.

        * dispnew.c (shift_glyph_matrix): Compute visible row height
        taking top line of window into account.
        (update_window): Update top line.  If scrolling_window detects
        that all rows are equal, only set cursor.
        (update_window_line): Call after_update_window_line_hook if
        mode_line_p flag of rows has changed.
        (scrolling_window): Add parameter top_line_p.  Return -1 if
        all rows are equal.
        (mode_line_string): Add parameter mode_line_p.  Handle strings
        in top lines.

        * dispextern.h (MATRIX_TOP_LINE_ROW): New.
        (MATRIX_FIRST_TEXT_ROW): New.
        (MATRIX_ROW_PARTIALLY_VISIBLE_P): Use row's visible_height.
        (MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P): New.
        (MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P): New.
        (MATRIX_TOP_LINE_HEIGHT): New.
        (CURRENT_MODE_LINE_HEIGHT): Use estimate_mode_line_height.
        (CURRENT_TOP_LINE_HEIGHT): New.
        (DESIRED_TOP_LINE_HEIGHT): New.
        (WINDOW_DISPLAY_TOP_LINE_HEIGHT): New.
        (WINDOW_DISPLAY_HEIGHT_NO_MODE_LINE): Replaces
        WINDOW_DISPLAY_TEXT_AREA_PIXEL_HEIGHT.
        (WINDOW_DISPLAY_TEXT_HEIGHT): New.

        * xterm.c (x_after_update_window_line): Don't draw bitmaps for top
        lines.
        (x_draw_row_bitmaps): Take top line into account when clearing
        bitmap area.
        (x_estimate_mode_line_height): Replacement for
        x_frame_mode_line_height.
        (x_get_glyph_string_clip_rect): Take top line into account.
        (x_clear_end_of_line): Ditto.
        (note_mode_line_highlight): Add parameter mode_line_p.  Handle
        top lines.
        (note_mouse_highlight): Call note_mode_line_highlight for top lines.
        (x_erase_phys_cursor): Take top line into account.

        * xdisp.c (window_box_height): Subtract top line height if
        window wants a top line.
        (display_mode_lines): New.
        (redisplay_window): Call it.
        (display_mode_line): Add parameters face_id and format.

        * dispextern.h (CURRENT_TOP_LINE_HEIGHT): New.
        (MATRIX_TOP_LINE_HEIGHT): New.

        * xterm.c (x_frame_mode_line_height): Add parameter face_id.

        * term.c (estimate_mode_line_height): Renamed from
        frame_mode_line_height.  Add parameter face_id.
        (estimate_mode_line_height_hook): Renamed from
        frame_mode_line_height_hook.
        (produce_special_glyphs_hook): Removed.
        (produce_glyphs_hook): Removed.

1999-06-23  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (WINDOW_WANTS_TOP_LINE_P): New.
        (struct glyph_row): Add mode_line_p.

        * xfaces.c (realize_basic_faces): Realize face `top-line'.
        (Qtop_line): New.
        (syms_of_xfaces): Initialize Qtop_line.

        * dispextern.h (TOP_LINE_FACE_ID): New.

        * buffer.c (init_buffer_once): Set default for
        top_line_format to nil.
        (init_buffer_once): Init top_line_format.
        (default-top-line-format): New.
        (top-line-format): New buffer-local variable.

        * buffer.h: Add top_line_format.

        * xdisp.c (overlay_arrow_changed_p): Removed because not used.

1999-06-17  Dave Love  <fx@gnu.org>

        * xfns.c: Move the PNG section before the JPEG one to avoid
        problems surrounding setjmp.h/png.h on GNU/Linux.
        
1999-06-17  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_kill_gs_process): Don't free colors.

1999-06-17  Dave Love  <fx@gnu.org>

        * s/gnu-linux.h: Zap spurious ~.

1999-06-16  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (gif_load): Improve multi-image support.

1999-06-15  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (gif_load): Support multi-image files.

        * Makefile.in (LIBGIF): Use libungif.

        * configure.in (HAVE_GIF): Use libungif instead of libgif
        because the former doesn't contain patented compression code.

        * xdisp.c (compute_window_start_on_continuation_line): Don't
        do it if line start is too far away from window start.

1999-06-14  Gerd Moellmann  <gerd@gnu.org>

        * buffer.c (init_buffer_once): Set buffer_local_flags for
        scroll_*_aggressively.
        (syms_of_buffer): Add DEFVAR_PER_BUFFER for scroll-*-aggressively.
        (init_buffer_once): Set defaults for these variables.
        (syms_of_buffer): Add default-scroll-*-aggressively.

        * buffer.h (scroll_up_aggressively): New.
        (scroll_down_aggressively):  New.

        * Makefile.in (LIBPNG): Add -lz -lm in case we're linking with
        a static PNG library.

        * configure.in (HAVE_PNG): Add -lz -lm when checking for PNG lib
        in case it's a static library.

        * Makefile.in (ctagsfiles): Split so that files starting
        with an `x' are found before files starting with `w32'.
        (ctagsfiles1): New.
        (ctagsfiles2): New.
        (TAGS): Use ctagsfiles[12] instead of ctagsfiles.

        * xdisp.c (compute_window_start_on_continuation_line): New.
        (redisplay_window): Use it.
        (INFINITY): New.
        (reseat_to_string): Use it.
        (hscroll_window_tree): Ditto.
        (compute_window_start_on_continuation_line): Ditto.
        (redisplay_window): Don't force display with a new window start.

1999-06-06  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_report_frame_params): Don't report `outer-window-id'
        if widget not present.

        * xdisp.c (prepare_menu_bars): Ignore tooltip frame.

1999-06-04  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (recompute_basic_faces)[GLYPH_DEBUG]: Check return
        value of realize_basic_faces.
        (load_face_font_or_fontset): Store full font name in face.
        (realize_default_face): Use full font name.

        * xlwmenu.c (make_shadow_gcs) ]emacs]: Use x_alloc_nearest_color.

        * xterm.c (x_produce_glyphs): Set member char_to_display.
        (x_append_glyph): Store char_to_display in glyphs.

        * dispextern.h (struct it): Add char_to_display.

        * xfns.c (x_set_font): Don't call face-set-after-frame-default
        if faces haven't been initialized.
        (Fx_create_frame): Call face-set-after-frame-default after
        faces have been initialized, and widget has been created.

        * puresize.h (BASE_PURESIZE): Increased.

1999-06-01  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (set_lface_from_font_name): Add parameter force_p.
        (Finternal_set_lisp_face_attribute): If frame is t when
        :font attribute is set, use the selected frame.
        (clear_face_cache): Add parameter clear_fonts_p.
        (Fclear_face_cache): Add optional parameter thorougly.

        * xfaces.c (face_numeric_value): Return -1 if symbol is not
        in table.
        (Fclear_face_cache): New.
        (choose_face_fontset_font): If fontset doesn't contain font
        pattern for the given charset, use CHARSET_ASCII.
        (Finternal_set_lisp_face_attribute): Fix handling of nil
        stipple attribute.
        (Finternal_set_lisp_face_attribute): Fix handling of changing
        font-related face attributes of the default face.
        (set_lface_from_font_name): Set only attributes that aren't
        specified.

1999-05-31  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (SCALABLE_FONTS): Define this to enable scalable
        font support.
        (Vscalable_fonts_allowed) [SCALABLE_FONTS]: New.
        (x_face_list_fonts): Add parameter scalable_fonts_p.  Handle
        scalable fonts depending on the setting of SCALABLE_FONTS.
        (first_font_matching): List more than one font to find the
        first non-scalable matching font.
        (sorted_font_list): Let x_face_list_fonts return scalable fonts
        depending on SCALABLE_FONTS.
        (better_font_p): New parameter compare_pt_p.  If zero, don't
        compare point sizes of fonts.
        (exact_face_match_p) [SCALABLE_FONTS]: New.
        (build_scalable_font_name) [SCALABLE_FONTS]: New.
        (may_use_scalable_font_p) [SCALABLE_FONTS]: New.
        (best_matching_font) [SCALABLE_FONTS]: Handle scalable fonts.
        (syms_of_xfaces):  Add scalable-fonts-allowed.

1999-05-26  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (png_load): Let PNG lib handle gamma.  Construct
        mask only if image contains simple transparency information.
        Otherwise, combine image with frame background color.

        * configure.in (--with-png, HAVE_PNG): New.

        * config.in (HAVE_PNG): New.

        * Makefile.in: Add PNG library.

        * xfns.c: Add PNG support.

1999-05-25  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (init_xdisp): Initialize echo_area_message and
        previous_echo_area_message to nil.

        * keyboard.c (read_char): Rename local variable echo_area_message
        because it shadows the global one.

1999-05-05  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (note_mode_line_highlight): Restructured.

        * window.c (coordinates_in_window): Handle windows that don't have
        a mode line because their buffer's mode-line-format is nil.
        Recognize the mode line under x positions that correspond to
        flags areas and left scroll bar.

1999-05-02  Dave Love  <fx@gnu.org>

        * xterm.c (note_mouse_highlight): Separate help-echo processing
        from check on mouse-face so that it works generally.

1999-04-21  Gerd Moellmann  <gerd@gnu.org>

        * sound.c (Fplay_sound): Run hook play-sound-hook.
        (Qplay_sound_hook): New.

1999-04-20  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (update_echo_area): Handle echo_area_message.

1999-04-19  Gerd Moellmann  <gerd@gnu.org>

        * editfns.c (Fmessage): Use message3.

        * print.c (printchar): Set echo_area_message to nil.
        (strout): Ditto.

        * minibuf.c (read_minibuf): Reset echo message strings to nil.
        (Fminibuffer_completion_help): Ditto.

        * keyboard.c (cmd_error_internal): Set echo_areA_message.
        (command_loop_1): Test echo_areA_message.
        (read_char): Ditto.
        (record_menu_key): Set echo_area_message to nil.
        (Fexecute_extended_command): Test echo_area_message.
        (Fexecute_extended_command): Handle echo_area_message.

        * fileio.c (Fdo_auto_save): Handle the case that echo_area_message
        is set.

        * editfns.c (Fcurrent_message): If echo_area_message is set,
        return a substring of that string.

        * dispnew.c (direct_output_for_insert): Test echo_area_message
        in addition to echo_area_glyphs.
        (set_window_cursor_after_update): Ditto.
        (update_frame_1): Ditto.

        * alloc.c (Fgarbage_collect): Use message3_nolog to display
        old Lisp message string.

        * xdisp.c (echo_area_message): New.
        (previous_echo_area_message): New.
        (syms_of_xdisp): Initialize and staticpro new variables.
        (echo_area_display): Display echo_area_message if set.
        (message2_nolog): Set echo_area_message and
        previous_echo_area_message.
        (echo_area_display): Set previous_echo_area_message.
        (redisplay_internal): Display echo area if echo_area_message
        or previous_echo_area_message are set.
        (redisplay_preserve_echo_area): Test/set echo_area_message and
        previous_echo_area_message.
        (redisplay_window): Test echo_area_message.
        (message3_nolog): New.
        (message3): New.

        * editfns.c (Fformat): Add text properties to the result string
        from properties of the format string and properties of string
        arguments.

        * textprop.c (text_property_list): New.
        (add_text_properties_from_list): New.
        (extend_property_ranges): New.

1999-03-29  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Qraised, Qsunken, QCshadow): Removed.
        (QCline_width, QCstyle, Qpressed_button, Qreleased_button): New.
        Use these symbols for the box face attribute instead of the
        removed ones.

1999-03-12  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (realize_tty_face): Don't set alt_char_p of face.
        Correct wrong test for slant.

1999-03-10  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c: Use `unspecified' for unspecified face attributes,
        use t and nil for on/off.

1999-03-06  Gerd Moellmann  <gerd@gnu.org>

        * buffer.c (syms_of_buffer): Extend doc string of
        mode-line-format.

        * xfaces.c (x_face_list_fonts): New parameter try_alternatives_p.
        (first_font_matching): New.
        (set_lface_from_font_name): Use it if font name is a pattern.
        (font_field_wildcard_p): Removed.

        * dispnew.c (shift_glyph_matrix): Add `window' parameter.
        Recompute visible height of rows.

        * xterm.c (note_mouse_highlight): Reorder code for help-echo.
        Don't accept non-strings for help-echo from overlays.

1999-03-04  Dave Love  <fx@gnu.org>

        * xterm.c (note_mouse_highlight): Check overlays for help-text
        property.
        (XTread_socket): Fix compiler warning.
        
1999-03-05  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (note_mouse_highlight): Don't restrict number of 
        overlay to 10.  Call overlays_at so that it doesn't try to
        extend the vector.

        * xdisp.c (compute_line_metrics): Compute glyph row's visible
        height.

        * dispnew.c (row_equal_p): Compare visible row height, only.
        (update_text_area): Draw whole line if visible heights of
        rows differ.
        (update_window_line): Call after_update_window_line_hook
        if visible row height has changed.

        * dispextern.h (MATRIX_ROW_VISIBLE_HEIGHT): Removed.
        (struct glyph_row): New member visible_height.

        * xfaces.c (font_field_wildcard_p): New.
        (set_lface_from_font_name): Remove parameter force_p.  Accept
        font names containing wildcards.

1999-03-04  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_after_update_window_line): Clear internal border
        when windows_or_buffers_changed.

        * dispextern.h (WINDOW_WANTS_MODELINE_P): Return zero if window's
        buffer has a nil mode_line_format.

1999-03-03  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_setup_relief_colors): Use either background color
        or specified color.

        * xfaces.c (realize_x_face): Set face->use_box_color_for_shadows_p.

        * dispextern.h (struct face): Add use_box_color_for_shadows_p.

        * xterm.c (x_draw_box_rect): New.
        (x_draw_glyph_string_box): Renamed from
        x_draw_glyph_string_relief.  Call x_draw_box_rect.

        * xfns.c (QCrelief): New.
        (syms_of_xfns): Initialize it.

        * dispextern.h (struct glyph): Rename left_shadow_p to
        left_box_line_p, right_shadow_p to right_box_line_p.
        (MAX_RELIEF_THICKNESS): Removed.
        (struct it): Rename members having `relief' in their names
        to contain `box' instead.

        * xfaces.c (realize_x_face): Handle new box attribute values.
        (QCrelief, Qbox): Removed.
        (QCshadow, QCcolor, Qraised, Qsunken): New.
        (syms_of_xfaces): Initialize new symbols.

1999-03-02  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (LFACE_RELIEF_INDEX): Removed.

        * xfaces.c (LFACE_RELIEF): Removed.
        (merge_face_vector_with_property): Remove handling of `:relief'.
        (Finternal_set_lisp_face_attribute): Ditto.
        (Finternal_set_lisp_face_attribute_from_resource): Ditto.
        (Finternal_get_lisp_face_attribute): Ditto.
        (realize_default_face): Ditto.
        (lface_hash): Don't compute hash from relief.

        * dispextern.h (struct face): Replace member `relief' by
        `box_line_width'.  Add member `box'.
        (face_box_type): New.

        * xterm.c (x_produce_glyphs): If face has overline, add overline
        thickness + 1 to ascent.

1999-03-01  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_draw_glyph_string): Draw underline, overline,
        strike-through, and boxes.
        (x_draw_glyph_string_underline): Removed.

        * xfaces.c (QCoverline, QCstrike_through, QCbox): New.
        (Qoverline, Qstrike_through, Qbox): New.
        (syms_of_xfaces): Define these symbols.
        (check_lface_attrs): Add checks for overline, strike-through,
        and box.
        (Finternal_set_lisp_face_attribute): Set new attributes.
        (LFACE_OVERLINE, LFACE_STRIKE_THROUGH, LFACE_BOX): New.
        (load_color): Handle new attributes.
        (realize_x_face): Ditto.
        (merge_face_vector_with_property): Ditto.
        (free_face_colors): Ditto.
        (Finternal_set_lisp_face_attribute_from_resource): Ditto.
        (Finternal_get_lisp_face_attribute): Ditto.
        (Finternal_lisp_face_attribute_values): Ditto.

        * dispextern.h (lface_attribute_index): Add enumerators for
        overstrike, strike-through, and box.
        (struct face): Add members for overline, strike-through, and
        box.

1999-02-17  Dave Love  <fx@gnu.org>

        * s/gnu-linux.h s/gnu.h s/irix5-0.h s/netbsd.h s/sco4.h s/sco5.h
        s/template.h (NARROWPROTO): Define on the basis of relevant X cf
        files.

1999-02-16  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (toolbar_items): Call access_keymap with third
        parameter 1, so that we don't get inherited toolbar item
        definitions.

        * xdisp.c (redisplay_internal): In optimization 1, don't decrement
        the window end vpos when in empty first line of window.

1999-02-15  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (set_font_frame_param): New.
        (Finternal_set_lisp_face_attribute): Call it.

Sun Feb 14 10:54:02 1999  Masatake Yamato  <masata-y@is.aist-nara.ac.jp>

        * xfaces.c (Finternal_set_lisp_face_attribute_from_resource):
        Accept specifications of color for underline.

1999-02-13  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Finternal_set_lisp_face_attribute): If parameter
        `frame' is t, operate on face defaults for new frames.  If it
        is nil, operate on the selected frame.

1999-02-12  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (check_matrix_invariants): Put it in #if 0.
        (update_window): Put the call to check_matrix_invariants in #if 0.

Sun Feb  7 09:58:49 1999  Masatake Yamato  <masata-y@is.aist-nara.ac.jp>

        * dispextern.h: Remove all else block of UNDERLINE_COLOR.
        Remove definition of UNDERLINE_COLOR.

Mon Jan  4 04:43:41 1999  Masatake Yamato  <masata-y@is.aist-nara.ac.jp>

        * xfaces.c (free_face_colors): Free the color for underline.

        * xterm.c (x_draw_glyph_string_underline): Set the color for underline
        to the GC.

Sun Jan  3 08:41:10 1999  Masatake Yamato  <masata-y@is.aist-nara.ac.jp>

        * dispextern.h  (UNDERLINE_COLOR): Defined.
        (struct face): Added two new members.
        underline_color, underline_defaulted_p.

        * xfaces.c (merge_face_vector_with_property): 
        (check_lface_attrs): Accept the string value for underline.
        (Finternal_set_lisp_face_attribute): Likewise. 

        * xfaces.c (load_color): Change the last argument type to enum
        lface_attribute_index from int. And addec code for underling coloring.
        (load_face_colors): Pass LFACE_*_INDEX to load_color.
        
1999-02-12  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (Fx_image_header): Removed.

1999-02-07  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c: Don't include <bitmaps/gray>.
        (x_term_init): Use gray_bitmap_width and gray_bitmap_height.

        * xfns.c (Fx_image_header): Add missing `\n\'.
        (gray_bitmap_width, gray_bitmap_height, gray_bitmap_bits): New.

1999-02-01  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_scroll_bar_create): Set background pixel from
        specified scroll bar color.
        (x_scroll_bar_set_handle): Use scroll bar foreground color.

        * xfns.c (x_set_scroll_bar_foreground): Remove all scroll bars.
        (x_set_scroll_bar_background): Ditto.

        * xterm.c (x_create_toolkit_scroll_bar): Set scroll bar colors.

        * xfns.c (x_default_scroll_bar_color_parameter): New.
        (Fx_create_frame): Call it.

1999-01-31  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (Fx_create_frame): Initialize scroll bar pixel color
        values in x_output structure.  
        (Qscroll_bar_foreground, Qscroll_bar_background): New.
        (syms_of_xfns): Initialize these symbols.

        * xterm.h (struct x_output): Add scroll bar pixel colors.

        * xfns.c (x_frame_parms): Add entries for scroll bar colors.
        (x_set_scroll_bar_foreground): New.
        (x_set_scroll_bar_background): New.

        * xlwmenu.c (all_dashes_p): Removed.
        (size_menu_item): Call lw_separator_p.
        (display_menu_item): Ditto.
        (display_menu): Ditto.
        (draw_separator): New.
        (display_menu_item): Call it.
        (separator_height): New.
        (size_menu_item): Call it.

        * lwlib-Xm.c (all_dashes_p): Removed.
        (make_menu_in_widget): Use lw_separator_p.  Set Motif separator
        type.

        * lwlib.c (lw_separator_p): New.

        * lwlib.h (enum menu_separator): New.

1999-01-12  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (handle_single_display_prop): New.
        (handle_display_prop): Call it.
        (handle_raise_prop): Removed.
        (handle_height_prop): Removed.
        (handle_space_width_prop): Removed.
        (handle_face_prop): Remove handling of raised text.
        (handle_display_prop): Do it here.

        * dispextern.h (DISPLAY_PROP_IDX): Replaces GLYPH_PROP_IDX.
        (RAISE_PROP_IDX): Removed.
        (HEIGHT_PROP_IDX): Removed.
        (SPACE_WIDTH_PROP_IDX): Removed.

        * xdisp.c (Qdisplay): Replaces Qglyph.
        (handle_display_prop): Formerly handle_glyph_prop.

1999-01-11  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (reseat_to_string): Set position in display vector to -1.
        (handle_stop): Set position in display vector to -1.  Don't
        check overlay strings when set up to deliver characters from a
        display vector.
        (set_iterator_to_next): At the end of a run of characters from a
        display vector, check whether the display vector display replaces
        the display of a character.

1999-01-05  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (init_frame_faces): Don't realize faces if frame's
        X window hasn't been created yet.

1998-12-06  Gerd Moellmann  <gerd@gnu.org>

        * sound.c: New.

1998-12-04  Gerd Moellmann  <gerd@gnu.org>

        * config.in (HAVE_SOUND): New.

        * emacs.c (main): Call syms_of_sound and init_sound.

        * Makefile.in (obj): Add sound.o.

        * configure.in: Add checks for machine/soundcard.h and sys/soundcard.h.

        * config.in (HAVE_MACHINE_SOUNDCARD_H): New.
        (HAVE_SYS_SOUNDCARD_H): New.

1998-12-03  Gerd Moellmann  <gerd@gnu.org>

        * buffer.h (struct buffer): indicate_empty_lines renamed from
        indicate_zv_lines.

        * buffer.c (indicate-empty-lines): Renamed from indicate_zv_lines.
        (default-indicate-zv-lines): Likewise.

        * dispextern.h (struct glyph_row): Rename indicate_zv_line_p
        to indicate_empty_line_p.

        * xdisp.c (reseat_at_next_visible_line_start): Reset method
        to next_element_from_buffer.

        * frame.c (make_frame): Set n_current_toolbar_items to 0.

        * xdisp.c (handle_face_prop): Allow symbols of the form `N+'
        and `N-'.

        * xfns.c (xbm_scan): New.
        (xbm_read_hexint): Removed.
        (xbm_read_bitmap_file_data): Use xbm_scan.

        * fileio.c (Finsert_file_contents): Prevent redisplay optimizations.

1998-12-02  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (xbm_read_hexint): New.
        (xbm_read_bitmap_file_data): New.
        (xbm_load_image_from_file): Call xbm_read_bitmap_file_data
        instead of XReadBitmapFileData.

        * xdisp.c (handle_raise_prop): Compute voffset from current font.

        * xfaces.c (face_with_height): New.

        * xdisp.c (eval_handler): Renamed from eval_mode_handler.
        (eval_form): Renamed from eval_mode_element.
        (handle_face_prop): Use it.
        (Qheight): Replaces Qsmaller.
        (handle_height_prop): Replaces handle_smaller_prop.
        (handle_face_prop): If iterator's font_height is not an 
        integer, evaluate it to get the font height to use.

        * dispextern.h (HEIGHT_PROP_IDX): Replaces SMALLER_PROP_IDX.
        (struct it): Use `font_height' instead of `smaller'.

1998-12-01  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (reseat_1): New.
        (reseat): Call it.
        (move_it_vertically_backward): Ditto.
        (redisplay_window): Don't abort when cursor not found in recenter.

1998-11-30  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (reseat_at_next_visible_line_start): When not
        currently delivering display elements from the current buffer,
        restore buffer position first.
        (init_from_display_pos): Don't set IT's position from the
        position passed to this function.

1998-11-28  Gerd Moellmann  <gerd@gnu.org>

        * config.in (PROTO): Removed.

        * xterm.h: Change PROTO to P_.

1998-11-26  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (take_vertical_position_into_account): New.
        (x_produce_image_glyph): Call it.
        (x_produce_stretch_glyph): Ditto.
        (x_produce_glyphs): Ditto.
        (x_fill_glyph_string): Adjust base line for glyph's voffset.
        (x_fill_composite_glyph_string): Ditto.
        (x_fill_image_glyph_string): Ditto.
        (x_fill_stretch_glyph_string): Ditto.

        * xdisp.c (display_line): Always compute row height from
        max_ascent and max_descent.

        * dispextern.h (struct glyph): Add voffset.
        (struct it): Replace height by descent, max_height by max_descent.

        * xterm.c (x_append_glyph): Set voffset
        (x_append_stretch_glyph): Ditto.
        (x_produce_image_glyph): Ditto.
        (x_produce_glyphs): Take voffset into account.
        (x_produce_image_glyph): Ditto.
        (x_produce_stretch_glyph): Ditto.

        * dispextern.h (struct it): Add voffset.
        * xdisp.c (push_it): Save voffset.
        (pop_it): Restore it.

        * xdisp.c (it_props): Add entry for `raise'.
        (handle_raise_prop): New.

        * dispextern.h (RAISE_PROP_IDX): New.

        * xdisp.c (Qraise): New.
        (syms_of_xdisp): Define Qraised.

        * xterm.c (x_scroll_bar_move): Clear to the left and right
        of toolkit scroll bars differently.
        (x_scroll_bar_move): Removed.
        (XTset_vertical_scroll_bar): Move code from x_scroll_bar_move here.

        * dispextern.h: Make it compilable --with-x=no.
        * alloc.c: Ditto.
        * emacs.c: Ditto.
        * dispnew.c: Ditto.
        * keyboard.c: Ditto.
        * term.c: Ditto.
        * xdisp.c: Ditto.
        * xfaces.c: Ditto.
        * xfns.c: Ditto.
        * xmenu.c: Ditto.

1998-11-25  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (XTread_socket): Cancel help-echo when leaving frame.

1998-11-24  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_set_toolkit_scroll_bar_thumb): When dragging,
        update slider size, only.
        (xm_scroll_callback): Set dragging member of the scroll bar.
        (xt_action_hook): Reset last_scroll_bar_part.
        (XTredeem_scroll_bar): Reset bar->dragging to nil.

        * xlwmenu.c (abort_gracefully): New.
        (display_menu): Use it instead of abort.
        (size_menu): Ditto.

        * xfns.c (Fx_hide_busy_cursor): Don't try to hide busy cursor
        window on newly created frames that don't have one.

1998-11-23  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (restore_overlay_strings): Removed.
        (restore_dpvec): Removed.
        (init_from_display_pos): Inline both functions above.

        * xfns.c (IMAGE_NON_NEGATIVE_INTEGER_VALUE): New.
        (parse_image_spec): Handle it.
        (xbm_format): Use it.
        (xpm_format): Ditto.
        (pbm_format): Ditto.
        (jpeg_format): Ditto.
        (tiff_format): Ditto.
        (gif_format): Ditto.
        (gs_format): Ditto.

        * xdisp.c (set_window_cursor): Removed.
        (redisplay_internal): Case cursor motion in cursor line of
        selected window; use set_cursor_from_row.

1998-11-22  Gerd Moellmann  <gerd@gnu.org>

        * widget.c (EmacsFrameSetCharSize): Take widget's border width
        into account.

1998-11-21  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (expose_frame): Redraw menu bar window.

        * xdisp.c (display_menu_bar): Record hpos instead of x-position
        in menu item.

        * dispnew.c (change_frame_size_1): Use FRAME_TOP_MARGIN instead
        of FRAME_TOOLBAR_LINES.  Use `f' instead of `frame'.

        * widget.c (set_frame_size): Use FRAME_SCROLL_BAR_COLS
        to determine vertical_scroll_bar_extra.
        (EmacsFrameSetCharSize): Ditto.
        * xfns.c (x_figure_window_size): Ditto.

        * xterm.c (x_draw_row_bitmaps): Draw in `bitmap-area' face.
        (x_draw_bitmap): Ditto.

        * dispextern.h (face_id): New id BITMAP_AREA_FACE_ID.
        * xfaces.c (realize_basic_faces): Realize it.

1998-11-20  Gerd Moellmann  <gerd@gnu.org>

        * xmenu.c (xmenu_show): Add workaround for remaining button grab
        under LessTif   Use the widget of the frame as parent for the 
        menu, again.

1998-11-19  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (XTread_socket): Inhibit busy cursor for EnterNotify.
        When EnterNotify, don't generate a mouse movement event if
        notification is from a busy-cursor child window.

        * xterm.h (struct x_output): Add busy_window, remove cursor.

        * xfns.c (Fx_show_busy_cursor): Formerly Fx_display_busy_cursor.
        Use a transparent window to display the busy-cursor.
        (Fx_hide_busy_cursor): Formerly Fx_undisplay_busy_cursor.

1998-11-17  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (check_window_end): New, for debugging.
        (CHECK_WINDOW_END): New.
        (try_window_id): Use it.

        * xterm.c (process_expose_from_menu): Return int.

        * keyboard.c (kbd_buffer_get_event): Set flag to prevent recording
        TOOLBAR_EVENT events in last_nonmenu_event.

1998-11-16  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (redisplay_window): If windows_or_buffers_changed,
        window end isn't reliable, so set window_end_valid to nil.
        (redisplay_internal): If overlay arrow has changed, set
        windows_or_buffers_changed to redisplay thoroughly.

        * dispnew.c (adjust_glyph_matrix): Invalidate window end, if
        necessary.

        * xfns.c (file_dialog_cb): New.
        (Fx_file_dialog): New.
        * fileio.c (Fread_file_name): Call it.

        * xrdb.c (x_load_resources): Add default resoures for file 
        selection dialog.

1998-11-14  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (note_mouse_highlight): Don't highlight when popup
        is active.

        * xlwmenu.c (xlwMenuResources): Change previously unused 
        XtNmargin to 4.
        (size_menu): Take margin into account.
        (display_menu_item): Ditto.
        (remap_menubar): Ditto.
        (draw_arrow): Draw it 3D.

        * keyboard.c (timer_check): Inhibit busy cursor around calls to
        timer-event-handler.  This busy cursor tends to be anoying if
        fontifying stealthily.

        * dispnew.c (direct_output_for_insert): Give up if current row
        contains trailing whitespace.

1998-11-13  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (prop_idx): Add FONTIFIED_PROP_IDX.

        * xdisp.c (handle_fontified_prop): New.
        (Vfontification_functions): New.
        (Qfontification_functions): New.
        (it_props): Add handle_fontified_prop.

1998-11-12  Gerd Moellmann  <gerd@gnu.org>

        * xmenu.c (xmenu_show): Use the frame's edit_widget as parent.
        Otherwise, under LessTif, after the popup has gone, all button
        press events come in for the frame's widget, and release events
        come in for the edit_widget.
        * xterm.c (XTread_socket): Remove workaround for that problem.
        (x_set_toolkit_scroll_bar_thumb): Add workaround for LessTif
        XmScrollBarSetValues.
        (SET_SAVED_MENU_EVENT): Give it statement form.

        * lwlib-Xm.c (make_menu_in_widget): Set alignment of menu
        title after all widgets have been created.

        * xfaces.c (display_message): If waiting_for_input, don't display
        the message.

        * window.c (scroll_command): If not acting on current_buffer,
        make redisplay consider all windows.

        * xfns.c (Fx_hide_tip): Return t if tooltip was open.

        * xdisp.c (handle_glyph_prop): Set it->object for images to
        the object having the glyph property.

        * xterm.c (x_draw_row_bitmaps): Don't draw if row is completely
        invisible.

1998-11-11  Gerd Moellmann  <gerd@gnu.org>

        * xterm.h (struct x_display_info): Add gray pixmap.  * xterm.c
        (x_term_init): Create the gray pixmap.
        (x_setup_relief_color): Use it.
        (x_get_glyph_string_clip_rect): Draw a toolbar window over the
        internal border at the top of a frame.
        (x_init_glyph_string): Likewise.
        (x_draw_glyph_string_relief): Correct right x by 1 pixel for 
        full-width lines.
        (XTflash): Don't flash the toolbar window.

        * xterm.c (XTread_socket): Workaround for LessTif popup menus
        in case of ButtonPress events.

1998-11-10  Gerd Moellmann  <gerd@gnu.org>

        * xrdb.c (x_load_resources): Add grey background colors as
        defaults for menus, scroll bars, and dialogs.

        * insdel.c (prepare_to_modify_buffer): Move setting
        windows_or_buffers_changed from modify_region here.

        * xfns.c (Fx_show_tip): Inhibit redisplay.
        (Fx_hide_tip): Ditto.
        (Fx_image_header): New.

1998-11-09  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (clear_window_matrices): Set window_end_valid to nil
        when clearing current window matrices.

1998-11-08  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (handle_glyph_prop): Don't set an iterator's buffer
        position from a string position.  Use the right end position
        if the property spans a whole overlay string.

1998-11-07  Gerd Moellmann  <gerd@gnu.org>

        * xmenu.c (menubar_selection_callback): Remove workaround for
        Lesstif not calling XmNpopdownCallback because it doesn't
        handle the case where users don't select any menu item.

        * xlwmenu.c (toggle_button_width): Renamed from
        toggle_or_radio_button_width.
        (radio_button_width): New.
        (size_menu_item): Use new functions.
        (draw_shadow_rhombus): New.
        (draw_radio): Use radio_button_width and draw_shadow_rhombus.
        (draw_toggle): Use toggle_button_width.

        * insdel.c (modify_region): Set windows_or_buffers_changed.

        * buffer.c (set_buffer_internal): Don't set
        windows_or_buffers_changed.

        * lwlib-Xm.c (xm_update_toggle): Add callback xm_generic_callback
        instead of xm_internal_update_other_instances.

        * xmenu.c (HAVE_BOXES): Define if USE_X_TOOLKIT.

        * lwlib-Xm.c (make_menu_in_widget): Do help button before managing
        children to get it to the right place.
        (make_menu_in_widget): Create toggle buttons.
        (update_one_menu_entry): Update toggle buttons.

        * xmenu.c (menubar_selection_callback): Add workaround for
        Lesstif not calling XmNpopdownCallback.

        * xdisp.c (eval_mode_element): New.
        (eval_mode_handler): New.
        (display_mode_element): Use eval_mode_element.

        * xdisp.c (display_mode_element): Allow `(:eval FORM)'.
        Remove code looking at text props of default value.

        * xmenu.c (HAVE_BOXES): Define if using Lucid menus.

        * xlwmenu.c (size_menu_item): Add parameter button_width.
        (size_menu): Compute button_width.
        (toggle_or_radio_button_width): New.
        (draw_toggle): New.
        (draw_radio): New.
        (draw_shadow_rectangle): Add parameter `down_p'.

        * xlwmenuP.h (_window_state): Add button_width.

1998-11-06  Gerd Moellmann  <gerd@gnu.org>

        * xmenu.c (single_submenu): Set button_type of menu to 
        BUTTON_TYPE_NONE.
        (single_submenu): Likewise for panes and menu items.
        (set_frame_menubar): Set button_type of menu bar to none.
        (xmenu_show): Likewise.
        (single_submenu): Set widget values selected slot.
        (xmenu_show): Likewise.

        * lwlib.c (merge_widget_value): Handle button_type.
        (copy_widget_value_tree): Copy button_type.

        * lwlib.h (enum button_type): New.
        (_widget_value): New member button_type.

        * xmenu.c (push_menu_item): Add parameters `type' and
        `selected'. Store it in menu_items.
        (MENU_ITEMS_ITEM_TYPE): New.
        (MENU_ITEMS_ITEM_SELECTED): New.
        (MENU_ITEMS_ITEM_LENGTH): Increase by two.

        * xfns.c (clear_image_cache): Get the current time, before
        doing anything.
        (cache_image): Set prev pointer of next image.
        (clear_image_cache): Clear current matrices if any image was
        freed.

        * xterm.c (XTread_socket): Set inhibit_busy_cursor.

        * xfns.c (x_set_cursor): New.
        (Fx_display_busy_cursor): New.
        (Fx_undisplay_busy_cursor): New.

        * xterm.h (struct x_output): Add busy_cursor.

        * xfns.c (Vx_busy_pointer_shape): New.
        (x_set_mouse_color): Create busy cursor.

        * process.c (wait_reading_process_input): Show and hide busy
        cursor.

        * keyboard.c (command_loop_1): Display busy cursor.

        * eval.c (Fsignal): Hide busy cursor.

        * buffer.c (set_buffer_internal): Don't set
        windows_or_buffers_changed.

        * xterm.c (redo_mouse_highlight): New.

1998-11-04  Gerd Moellmann  <gerd@gnu.org>

        * lwlib-Xm.c (make_menu_in_widget): Test for menubar widgets
        using XmNrowColumnType.

        * xfns.c (x_create_x_image_and_pixmap): Add depth parameter.
        (x_build_heuritic_mask): New.
        (lookup_image): Call it.

        * xterm.c (note_toolbar_highlight): Always set up help_echo.
        (previous_help_echo): New.
        (XTread_socket): Generate help event with nil message when
        leaving a region with help-echo.
        (note_mouse_highlight): Handle `help-echo' over text.
        (XTread_socket): Dispatch VisibilityNotify, CirculateNotify,
        CirculateRequest.
        (clear_mouse_face): Don't clear if tooltip is shown.
        (XTread_socket): Redo mouse-highlight after tooltip is gone.
        Avoid SET_FRAME_GARBAGED when tooltip is mapped.

        * keyboard.c (Vshow_help_function): New.
        (read_char): Use it.

1998-11-03  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_create_tip_frame): New.
        (Fx_show_tip): New.
        (Fx_hide_tip): New.

        * xterm.c (x_destroy_window): Handle case that we don't have 
        a widget.

        * dispextern.h (struct glyph_row): Rename no_marginal_areas_p
        to full_width_p.  Add internal_border_p.

1998-11-02  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (note_mode_line_highlight): Check the charpos of
        the glyph under the mouse pointer before accessing text
        properties at that position.

1998-11-01  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_draw_image_relief): Handle toolbar_button_relief.

        * xdisp.c (auto-raise-toolbar-buttons): New.
        (build_desired_toolbar_string): Handle the flag.
        (toolbar-button-margin): New.
        (toolbar-button-relief): New.
        (build_desired_toolbar_string): Use margin and relief.

        * xterm.c (x_set_toolkit_scroll_bar_thumb): Remove workaround
        for FreeBSD.
        (note_mode_line_highlight): New.
        (note_mouse_highlight): Call it.

1998-10-31  Gerd Moellmann  <gerd@gnu.org>

        * s/freebsd.h (NARROWPROTO): New.

        * xdisp.c (display_string): New parameter face_string.
        (display_mode_element): When displaying a symbol with a string
        value, use text properties from the symbol's default value, maybe.

        * xrdb.c (x_load_resources): Add font defaults for menus and
        dialogs.

1998-10-30  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (Fx_create_frame): Try 12pt Courier font first.

1998-10-29  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_produce_glyphs): Fix bug causing glyphs to be
        produced for characters with codes < 32 under certain
        circumstances.

        * xdisp.c (redisplay_window): Handle values of PT in front
        of invisible, intangible text.
        (try_window_id): Set overlay_arrow_seen to zero before 
        displaying lines.
        (display_mode_element): Assign to glyphs written for a mode
        line spec `%x' as object the Lisp format string, as position
        the position of the `%' in that string.
        (display_string): If displaying a C string, optionally get
        the face to use from a Lisp string.

        * xterm.c (expose_window_tree): Include mode line height.

        * xfns.c (Fx_create_frame): Add toolbar height to frame height.

1998-10-27  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (note_mouse_highlight): Change mouse pointer shape
        over mode line.

1998-10-26  Gerd Moellmann  <gerd@gnu.org>

        * window.c (coordinates_in_window): Use CURRENT_MODE_LINE_HEIGHT.

        * xdisp.c (redisplay_window): If mode line height has changed,
         arrange for a thorough immediate redisplay using the correct mode
         line height.
         (window_box_height): Use CURRENT_MODE_LINE_HEIGHT.

        * dispextern.h (MATRIX_MODE_LINE_HEIGHT): New.
        (CURRENT_MODE_LINE_HEIGHT): New.
        (DESIRED_MODE_LINE_HEIGHT): New.

        * keyboard.c (make_lispy_event): Add string and string position
        info to mouse-click events.
        (read_key_sequence): Handle `local-map' property of mode line
        strings.

        * keyboard.h (POSN_STRING): New.

1998-10-25  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (mode_line_string): Mew.

        * xterm.c (xt_action_hook): New.
        (x_create_toolkit_scroll_bar): Add action hook.
        (xm_scroll_callback): Implement dragging.

        * keyboard.c (Qend_scroll): New.
        (scroll_bar_parts): Add it.

        * termhooks.h (scroll_bar_end_scroll): New.

        * xterm.c (XTread_socket): Bug fix.

1998-10-24  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (redisplay_window): Finish scroll bars after
        redisplaying toolbar.

        * keyboard.c (scroll_bar_parts): Add Qtop and Qbottom.
        (syms_of_keyboard): Add Qbottom.

        * termhooks.h (scroll_bar_to_top): New.
        (scroll_bar_to_bottom): New.

        * xdisp.c (redisplay_window): Always resize toolbar window if
        auto_resize_toolbar_p is non-zero.
        (auto_resize_toolbar_p): Renamed from auto_resize_toolbar.
        (window_box): New.
        (window_box_height): New.
        (window_box_width): New.
        (window_box_left): New.
        (window_box_right): New.
        (window_box_edges): New.

1998-10-23  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_set_toolkit_scroll_bar_thumb): Kluge for call to
        XawScrollbarSetThumb in FreeBSD.
        (x_create_toolkit_scroll_bar): Set resource "beNiceToColormap"
        to true.

        * window.c (get_phys_cursor_glyph): Return null if cursor vpos
        is out of range.

        * xterm.c (x_create_toolkit_scroll_bar): Set scroll_bar_pixel.
        (x_term_init): Initialize it.

        * xterm.h (struct x_display_info): Add scroll_bar_pixel.

        * xterm.c (x_create_toolkit_scroll_bar): Set LessTif scroll bar's
        cursor.

1998-10-22  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (make_lispy_event): Handle scroll_bar_click
        differently when using toolkit scroll bars.

        * xterm.c (x_send_scroll_bar_event): New.
        (x_scroll_bar_to_input_event): New.
        (xaw3d_scroll_callback): New.
        (xaw3d_jump_callback): New.
        (xm_scroll_callback): New.
        (x_toolkit_scroll_p): New.
        (XTread_socket): Handle scroll bar client message.
        (x_term_init): Initialize Xatom_Scrollbar.
        (x_scroll_bar_create): Set cursor.
        (xm_scroll_callback):
        (x_create_toolkit_scroll_bar): New.
        (x_set_toolkit_scroll_bar_thumb): New.
        (x_scroll_bar_create): Call x_create_toolkit_scroll_bar.
        (XTset_vertical_scroll_bar): Call x_set_toolkit_scroll_bar_thumb.

        * xterm.h (struct x_display_info): Add Xatom_Scrollbar.

1998-10-21  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_scroll_bar_remove): Handle toolkit scroll bars.
        (XTread_socket): Don't handle mouse button events for scroll bars
        if using toolkit scroll bars.
        (XTset_vertical_scroll_bar): Set thumb size and position for
        Athena scroll bar.

        * xterm.h (scroll_bar): Add x_widget_low and x_widget_high.

        * xterm.c (XTread_socket): Dispatch expose event to widget
        if using toolkit scroll bars.
        (x_scroll_bar_expose): Make no-op for toolkit scroll bars.
        (x_scroll_bar_create): Create and show a scroll bar widget 
        if using toolkit scroll bars.
        (x_scroll_bar_move): Handle tookit scroll bars.

        * Makefile.in (LIBW): Use Xaw3d if present.

        * configure.in (USE_TOOLKIT_SCROLL_BARS): New.
        (HAVE_XAW3D): New.
        
        * config.in (USE_TOOLKIT_SCROLL_BARS): New.
        (HAVE_XAW3D): New.

        * xterm.c (XTset_vertical_scroll_bar): Correct position of 
        right vertical scroll bar.

1998-10-20  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (xpm_load): Support reading XPM images from string
        buffers containing data in the same format as an XPM file.
        Support `:color-symbols'.
        (xpm_format): Add `:data'.
        (xpm_keyword_index): Add XPM_DATA.
        (syms_of_xfns): Add `:color-symbols'.
        (xpm_keyword_index): Add XPM_COLOR_SYMBOLS.
        (xpm_valid_color_symbols_p): New.
        (xpm_image_p): Call it.

        * xdisp.c (build_desired_toolbar_string): Add `:algorithm'
        attribute to the image if item is not enabled.

        * xfns.c (x_laplace): New.
        (x_laplace_read_row): New.
        (x_laplace_write_row): New.
        (lookup_image): Handle common image attributes here.  New
        attribute `:algorithm'.

        * xfaces.c (clear_face_cache): Call clear_image_cache.

        * xterm.c (x_inverted_image_mask): Removed.
        (x_draw_image_foreground_1): New.
        (x_draw_image_glyph_string): Draw images with mask to a temporary
        pixmap to reduce flickering.

        * xdisp.c (redisplay_toolbar): Handle auto-resize-toolbars.
        (display_toolbar_line): Remove parameter `margin'.

1998-10-19  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (toolbar_lines_needed): New.
        (auto-resize-toolbars): New.

        * xfns.c (cache_image): Correct call to xrealloc.

        * dispnew.c (Fset_toolbar_height): Removed.

        * xdisp.c (init_xdisp): Use FRAME_TOP_MARGIN instead of
        FRAME_MENU_BAR_LINES.

        * window.c (Fdelete_other_windows): Use FRAME_TOP_MARGIN
        instead of FRAME_MENU_BAR_LINES.
        (check_frame_size): Ditto.

        * dispnew.c (adjust_frame_glyphs_initially): Use FRAME_TOP_MARGIN
        instead of FRAME_MENU_BAR_LINES.
        (adjust_frame_glyphs_for_frame_redisplay): Ditto.
        (build_frame_matrix): Ditto.
        (change_frame_size_1): Ditto.

        * frame.h (FRAME_TOOLBAR_LINES): New.
        (FRAME_TOP_MARGIN): New.

        * window.c (struct save_window_data): Add frame_toolbar_lines.
        (Fset_window_configuration): Handle toolbar lines.
        (Fcurrent_window_configuration): Save toolbar lines.

        * frame.c (syms_of_frame_1): Add Qtoolbar_lines.

        * xfns.c (Fx_create_frame): Add default parameter for toolbar.

        * frame.h (struct frame): Rename top_margin to toolbar_lines.

        * xfns.c (x_frame_parms): Add `toolbar-lines'.
        (x_set_toolbar_lines): New.

        * keyboard.c (cmd_error_internal): Bug fix.

        * xterm.c: Remove double include of syssignal.h.

1998-10-18  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_toolbar_item): New.
        (x_handle_toolbar_click): Use it.
        (note_toolbar_highlight): Use it.

        * keyboard.c (syms_of_keyboard): Staticpro toolbar_item_properties
        and toolbar_items_vectors.

        * xterm.c (help_echo): New.
        (draw_glyphs_face): Add DRAW_IMAGE_RAISED and DRAW_IMAGE_SUNKEN.
        (x_set_glyph_string_gc): Handle them.
        (x_after_update_window_line): Don't do anything in pseudo-windows.
        (x_produce_image_glyph): Take image margin and face relief into
        account.
        (x_get_glyph_string_clip_rect): Handle pseudo-windows.
        (x_draw_glyph_string_background): Optimize case when face has
        relief.
        (x_setup_relief_color): Take frame instead of glyph string
        parameter.
        (x_draw_relief_rect): New.
        (x_draw_glyph_string_relief): Call it.
        (x_draw_image_glyph_string_foreground): Handle margin and image
        relief.
        (x_draw_image_glyph_string_background): Ditto.
        (expose_frame): Redraw toolbar window.
        (expose_window): Don't draw cursor for pseudo-windows.
        (x_y_to_hpos_vpos): Handle pseudo-windows.
        (frame_to_window_pixel_xy): New.
        (note_mouse_highlight): Call note_toolbar_highlight.
        (x_handle_toolbar_click): New.
        (note_toolbar_highlight): New.
        (show_mouse_face): Change int parameter `hl' to parameter of
        type enum draw_glyphs_face.  Handle image highlighting.
        (XTread_socket): Return a HELP_EVENT input event if help_echo is
        non-nil.  Use x_handle_toolbar_click.

        * termhooks.h (event_kind): Add HELP_EVENT, TOOLBAR_EVENT.

        * xfns.c (image_value_type): Add IMAGE_INTEGER_VALUE,
        IMAGE_BOOL_VALUE.
        (parse_image_spec): Handle them.
        (image_spec_value): Additional parameter found.
        (free_image): Remove image from the vector `images' of the 
        image cache.
        (clear_image_cache): Additional parameter force_p.
        (Fclear_image_cache): New.
        (x_find_image_file): New.
        (xbm_load): Handle `:margin' and `:relief'.  Use
        x_find_image_file.
        (xpm_load): Likewise.
        (pbm_load): Likewise.
        (jpeg_load): Likewise.
        (tiff_load): Likewise.
        (gif_load): Likewise.

        * keyboard.c (Qhelp_echo): New symbol.
        (read_char): Handle `toolbar' and `help_echo' events.
        (kbd_buffer_get_event): Handle HELP_ECHO input event.
        (make_lispy_event): Handle TOOLBAR_EVENT.
        (toolbar_items): New.
        (process_toolbar_item): New.
        (PROP): New.
        (init_toolbar_items): New.
        (append_toolbar_item): New.
        (read_char_x_menu_prompt): Handle `toolbar' event.
        (read_key_sequence): Ditto.

        * xfaces.c (Qtoolbar): New.
        (realize_basic_faces): Realize `toolbar' face.
        (face_at_string_position): Remove parameter modeline_p, add
        base_face_id.

        * xfns.c (xbm_load_image_from_file): Don't use Xmu function
        to read data.

1998-10-17  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (init_iterator): Replace parameter modeline_p with
        base_face_id.
        (next_element_from_string): Call get_next_display_element
        recursively after handling text properties.
        (prepare_menu_bars): Call update_toolbar.
        (update_toolbar): New.
        (build_desired_toolbar_string): New.
        (display_toolbar_line): New.
        (redisplay_toolbar): New.
        (toolbar_item_info): New.
        (redisplay_window): Call redisplay_toolbar.
        (Fdump_toolbar_row): New.  Defined if compiled with GLYPH_DEBUG.

        * dispnew.c (clear_current_matrices): Clear matrices of toolbar
        window.
        (clear_desired_matrices): Ditto.
        (adjust_frame_glyphs_for_window_redisplay): Make toolbar window.
        (free_glyphs): Free matrices of toolbar window.
        (update_frame): Update toolbar window.
        (change_frame_size_1): Take toolbar into account.
        (Fset_toolbar_height): New.

        * dispextern.h (struct it): Remove member modeline_p, add
        base_face_id.
        (struct image): Add members relief and margin.
        (IMAGE_ASCENT): Include margin in height.

1998-10-14  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (Fclear_image_cache): New.

        * xfaces.c (realize_basic_faces): Realize toolbar face.
        (face_at_string_position): Remove parameter modeline_p, add
        base_face_id.

        * dispextern.h (enum face_id): Add TOOLBAR_FACE_ID.

1998-10-13  Gerd Moellmann  <gerd@gnu.org>

        * keyboard.c (syms_of_keyboard): Intern `:help'.

1998-10-12  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (note_toolbar_highlight): New.
        (note_mouse_highlight): Call it.

        * window.c (window_from_coordinates): Additional parameter toolbar_p.
        (coordinates_in_window): Handle toolbar window.

        * keyboard.c (toolbar_items): New.
        (process_toolbar_item): New.
        (parse_toolbar_item): New.
        (init_toolbar_items): New.
        (append_toolbar_item): New.

        * dispextern.h (enum toolbar_item_idx): New.
        (enum toolbar_item_image): New.

        * frame.h (struct frame): Add toolbar-related members.

        * xfaces.c (face_at_string_position): Remove assertion that
        current_buffer == window's buffer.  This is not the case when
        called for the toolbar window.

        * frame.c (make_frame): Initialize toolbar members.

        * alloc.c (mark_object): Mark toolbar data of frames.

        * frame.h (struct frame): Add toolbar-related members
        toolbar_window, desired_toolbar_items, current_toolbar_items,
        desired_toolbar_string, current_toolbar_string,
        n_desired_toolbar_items, n_current_toolbar_items.  Add
        window_height.

        * xterm.c (x_after_update_window_line): Don't draw bitmap
        areas for pseudo-windows.
        (expose_frame): Handle toolbar window.
        (expose_window): Don't do cursor stuff for pseudo-windows.

        * xdisp.c (display_menu_bar): Correct calls to init_iterator.

1998-10-11  Gerd Moellmann  <gerd@gnu.org>

        * frame.c (make_frame): Initialize toolbar_window.

        * alloc.c (mark_object): Make the toolbar window.

        * dispnew.c (update_frame): Update frame's toolbar_window.
        (clear_current_matrices): Likewise.
        (clear_desired_matrices): Likewise.
        (adjust_frame_glyphs_for_window_redisplay): Make toolbar_window.
        (free_glyphs): Free the toolbar window and its matrices.

        * frame.h (struct frame): Add toolbar_window.

        * xterm.c (x_draw_glyph_string_relief): Handle mouse-face
        with relief.

1998-10-10  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (buffer_posn_from_coords): Don't screw up if 
        window start is not in the range BEGV..ZV.

1998-10-09  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (try_scrolling): Experimentally handle the case
        that scroll-preserve-screen-position is set to `always'.

        * window.c (Vscroll_preserve_screen_position): Replacement for
        scroll_preserve_screen_position.

1998-10-08  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c: Don't initialize auto structs; the HP/UX compiler
        doesn't like it.
        * xdisp.c: Ditto.

        * xdisp.c (make_cursor_line_fully_visible): Adjust this_line_y.

1998-10-06  Gerd Moellmann  <gerd@gnu.org>

        * minibuf.c (Fminibuffer_complete_word): Fix computation of 
        i_byte when prompts are inserted into minibuffers.

        * dispextern.h (FRAME_INTERNAL_BORDER_WIDTH_SAFE): New.
        (WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X): Use it.
        (WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y): Ditto.

1998-10-04  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (make_cursor_line_fully_visible): New.
        (try_scrolling): New.
        (redisplay_window): Move scrolling code to try_scrolling.
        (make_cursor_line_fully_visible): Handle case of window too small
        to show a single line.
        (redisplay_window): Case forced window start---use
        make_cursor_line_fully_visible.
        (redisplay_window): Case cursor movement via current matrix.
        If ending up on a partially visible line, make it fully visible
        instead of recentering.
        (try_scrolling): Additional parameter scroll_smoothly.

        * xterm.c (x_draw_bitmap): Don't XClearArea under the pixmap.

1998-09-28  Gerd Moellmann  <gerd@gnu.org>

        * window.c (window_scroll_pixel_based): Bug fix: vpos used
        instead of y-position for scroll-preserved-screen-position.

1998-09-07  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (update_frame_line): If current row is not enabled,
        write the whole line.

1998-09-06  Gerd Moellmann  <gerd@gnu.org>

        * lisp.h (HAVE_FACES): Removed.

        * dispextern.h (HAVE_FACES): Removed.

        * config.in (HAVE_FACES): Removed.

        * dispnew.c (HAVE_FACES): Removed.

        * xdisp.c (HAVE_FACES): Removed.

        * xfaces.c (HAVE_FACES): Removed.

1998-09-05  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (init_iterator): If face_change_count is non-zero,
        free realized faces.

        * xfaces.c (free_all_realized_faces): Make it externally visible.
        (Finternal_set_lisp_face_attribute): Increment
        windows_or_buffers_changed.

        * dispnew.c (direct_output_for_insert): Give up if
        face_change_count is non-zero.
        (direct_output_forward_char): Ditto.

        * xfaces.c (face_change_count): New.

1998-09-04  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_draw_bar_cursor): Don't draw if cursor hpos is out
        of range.

1998-09-03  Gerd Moellmann  <gerd@gnu.org>

        * term.c (Ftty_display_color_p): New.

1998-09-02  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Ftty_defined_colors): New.

        * xterm.c (x_produce_glyphs): Fix computation of
        contains_overlapping_glyphs_p for ASCII.

        * dispnew.c (Fshow_cursor): Don't change cursor state while
        redisplaying.
        (direct_output_for_insert): If a glyph with lbearing or rbearing
        is among the new glyphs, set row flag contains_overlapping_glyph_p.

1998-09-01  Gerd Moellmann  <gerd@gnu.org>

        * term.c (OUTPUT_IF): Make replacement text have statement form.
        (OUTPUT1_IF): Ditto.
        (TS_italic_mode, TS_end_italic_mode): Removed.
        (TS_bold_mode): Removed.
        (TS_underscore_mode, TS_end_underscore_mode): Removed.
        (TS_enter_bold_mode, TS_enter_dim_mode, TS_enter_blink_mode): New.
        (TS_enter_reverse_mode): New.
        (TS_enter_underline_mode, TS_exit_underline_mode): New.
        (TN_magic_cookie_glitch_ul): New.
        (TS_enter_alt_charset_mode, TS_exit_alt_charset_mode): New.
        (TS_exit_attribute_mode): New.
        (TN_max_colors, TN_max_pairs, TS_orig_pairs): New.
        (TS_set_foreground, TS_set_background): New.
        (reset_terminal_modes): Switch colors back to default.
        (write_glyphs): Turn face on before writing text, turn it off
        afterwards.
        (insert_glyphs): Ditto.
        (term_init): Initialize new terminal capability variables.
        (turn_on_face): Turn a face on.
        (turn_off_face): Turn a face off.

        * lisp.h (MAKE_GLYPH): Remove test for frame type.
        (GLYPH_CHAR): Ditto.
        (GLYPH_FACE): Ditto.

        * xfaces.c (Vface_tty_color_alist): New.
        (face-register-tty-color): New.
        (face-clear-tty-colors): New.

        * dispextern.h (FACE_TTY_DEFAULT_COLOR): New.
        (struct it): Remove member faces_p since we now always have faces.

1998-08-31  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (struct face): Add tty appearance flags.

        * xdisp.c (init_iterator): Always handle faces.
        (extend_face_to_end_of_line): Handle tty frames.

        * dispnew.c (clear_glyph_matrix): Allow a null matrix to be
        passed in.

1998-08-30  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (realize_default_face): Use empty strings to indicate
        that the face should use the default foreground/background
        color of the terminal.  Fill font-related attributes with 
        appropriate values for tty frames.

        * emacs.c (main): Call syms_of_xfaces before init_window_once.

        * xfaces.c (realize_default_face): If face `default' is not
        yet known, create it.

        * frame.c (make_terminal_frame): Call init_frame_faces
        unconditionally.

        * xfaces.c (init_frame_faces): Make it work for tty frames.
        (free_frame_faces): Ditto.
        (clear_face_cache): Ditto.
        (recompute_basic_faces): Ditto.
        (Fframe_face_alist): Ditto.
        (free_realized_face): Ditto.
        (prepare_face_for_display): Ditto.
        (clear_face_gcs): Ditto.
        (lookup_face): Ditto.
        (smaller_face): Ditto.
        (realize_default_face): Ditto.
        (realize_face): Ditto.
        (realize_face): Dispatch to functions depending on the frame type.
        (realize_x_face): X way of realizing faces.
        (realize_tty_face): TTY way of realizing faces.

1998-08-29  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (realize_face): Remove parameter unibyte_registry,
        compute it instead.
        (lookup_face): Remove local variable unibyte_registry.

1998-08-22  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_draw_glyph_string_relief): Draw top and bottom lines
        1 pixel longer.

        * xdisp.c (face_before_or_after_it_pos): Fix computation 
        of face in buffer.

        * editfns.c (make_buffer_string_both): If prompt in buffer,
        prevent start > end.

        * indent.c (Fvertical_motion): Set current_buffer to window's
        buffer if it isn't already.

1998-08-21  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (GLYPH_DEBUG): Use default 0.

        * xdisp.c (it_props): New member `smaller'.
        (init_iterator): Initialize it.
        (Qsmaller): New.
        (push_it): Save value of `smaller' value on the stack.
        (pop_it): Restore `smaller' from the stack.
        (handle_smaller_prop): New.
        (handle_face_prop): Use `smaller' text property to select a
        suitable face.

        * dispextern.h (SMALLER_PROP_IDX): New.
        (struct it): Add member `smaller'.

        * xfaces.c (smaller_face): New.

        * frame.h (FRAME_WINDOW_WIDTH_ARG): Add bitmap area widths.

        * dispnew.c (allocate_matrices_for_window_redisplay): Compute
        total pixel width of window differently.

        * xdisp.c (init_iterator): Compute width of mode line differently.

        * dispextern.h (WINDOW_DISPLAY_PIXEL_WIDTH): Subtract width
        of bitmap areas.

        * window.c (Fsplit_window): Include width of bitmap areas in
        window width.
        (window_internal_width): Subtract width of bitmap areas from
        total width.

1998-08-18  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c: Functions reordered for better readability.

        * dispnew.c (update_text_area): Handle glyphs with arbitrary
        lbearing.
        (update_window_tree): Parameter no_scrolling_p removed.
        (update_single_window): Ditto.

        * xterm.c (x_get_char_font_and_encoding): Renamed to
        x_get_char_face_and_encoding.

        * dispnew.c (update_text_area): Don't call get_glyph_overhangs
        if end of current row reached.

        * xterm.c (x_get_glyph_face_and_encoding): New.
        (x_get_glyph_overhangs): Call it.

        * xdisp.c (Qshow_trailing_whitespace): New.
        (Qtrailing_whitespace): New.
        (enum prop_handled): New.
        (struct props, it_props): New.
        (next_overlay_change): New.  Works like Fnext_overlay_change
        but doesn't use xmalloc.
        (handle_stop): Restructured.
        (face_before_or_after_it_pos): Case iteration over a string: fix
        handling of face before current position.

1998-08-16  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (adjust_glyph_matrix): Don't optimize matrix
        reallocation matrix if fonts_changed_p.
        (update_text_area): Handle glyphs with lbearing.

1998-08-14  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (struct props): New.
        (it_props): New.
        (compute_prop_info): New.
        (handle_stop): New.

        * textprop.c (validate_interval_range): Make it externally
        visible.

        * dispnew.c (direct_output_for_insert): Remove calls
        to compute_stop_pos.

        * dispextern.h (struct it): Remove check_charpos,
        next_overlay_pos.  Add what_changes.

1998-08-10  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (note_mouse_highlight): Set BEGV_BYTE, ZV_BYTE.

        * xfaces.c (Vx_unibyte_registry_and_encoding): Removed.  Use
        face_default_registry instead.

        * syntax.c (scan_sexps_forward): Set up syntax table before
        jumping to initial state label.

1998-08-09  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (check_matrix_invariants): Handle case of row end pos
        >= ZV specially.

1998-08-08  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (redisplay_window): Case cursor movement---if cursor
        ends up in partially visible row, try to scroll.  Case forced
        window start---handle windows not tall enough to show a single
        line.

        * window.h (struct window): Member dy renamed vscroll.

        * xterm.c (x_list_fonts): Re-activate suppression of scalable
        fonts.
        (x_draw_stretch_glyph_string): Set clipping if using GC that
        hasn't set it yet.

        * xdisp.c (redisplay_window): Case forced window start -
        don't let cursor end on partially visible row.  Use desired
        matrix to find a suitable PT if it doesn't appear.
        (decode_mode_spec): Merged with 20.2.97.
        (try_window_reusing_current_matrix): Give up if old or
        new display is vscrolled.
        (redisplay_window): Reset vscrolling if forced window start,
        or if recentering.

1998-08-06  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (realize_default_face): Use the fontset name instead of
        the alias for the family attribute of the default face because we
        can't easily determine a good alias from fontset-alias-alist.
        (face_fontset): Use Fquery_fontset to find the fontset.
        (font_list): Additional pattern parameter.
        (try_font_list): Ditto.
        (set_lface_from_font_name): Set face family from font foundry
        and family.
        (font_list): If family contains a hyphen, build pattern differently.

1998-08-05  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (free_realized_faces): Increment windows_or_buffers_-
        changed instead of setting the frame garbaged.

        * xfaces.c (lface_equal_p): Don't assume equal Lisp types for
        all attribute values.  This is wrong if values are unspecified,
        i.e. nil.

        * xdisp.c (try_window_id): Give up if window start changed.

        * xfaces.c (make_realized_face): Store registry as Lisp object.
        (load_face_font_or_fontset): Compute registry of a face
        differently.  Make it `eq' to Vx_unibyte_registry_and_encoding if
        possible.

        * dispextern.h (FACE_SUITABLE_FOR_CHARSET_P): Compare registries
        differently.

        * alloc.c (mark_face_cache): Mark the registry member of faces.

        * dispextern.h (struct face): Make registry a Lisp string.

1998-08-04  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_get_char_font_and_encoding): Additional parameter
        multibyte_p.  Handle unibyte text.
        (x_append_glyph): Set the multibyte_p flag of glyphs.
        (x_produce_image_glyph): Ditto.
        (x_append_stretch_glyph): Ditto.
        (x_produce_glyphs): Handle unibyte text like ASCII.

        * xdisp.c (push_it): Save the multibyte flag of an iterator on the
        stack.
        (pop_it): Restore it.
        (face_before_or_after_it_pos): Handle the case that the string or
        buffer is unibyte.
        (get_overlay_strings): Set the multibyte flag of the iterator if
        the new overlay string is multibyte.
        (get_glyph_property): Likewise.
        (get_next_display_element): Don't check for charset changes in
        unibyte text.
        (append_space): Compute face differently for unibyte text.
        (extend_face_to_end_of_line): Don't return quickly if face has
        stipple.

        * xfaces.c (load_face_font_or_fontset): Store registry and
        encoding of the font in the registry member of the face.
        (make_realized_face): Additional parameter `registry'.
        (free_realized_face): Free the registry of a realized face.
        (face_suitable_for_charset_p): Function form of the macro
        with the same name in uppercase.
        (lookup_face): Use Vx_unibyte_registry_and_encoding if charset < 0.
        (choose_face_font): New parameter unibyte_registry.
        (choose_face_fontset_font): Ditto.
        (realize_default_face): Remember the registry and encoding of
        the specified frame font in Vx_unibyte_registry_and_encoding.
        (face_at_buffer_position): Handle unibyte.
        (face_at_string_position): Likewise.
        (realize_face): New parameter unibyte_registry.  
        (compute_char_face): Handle the unibyte case.

        * dispextern.h (struct glyph): Add bit multibyte_p.
        (struct face): New member registry holding the registry and
        encoding of the X font of the face.
        (FACE_UNIBYTE_P): Value is non-zero if face is for unibye text.
        (enum face_id): Add BASIC_FACE_ID_SENTINEL.
        (FACE_SUITABLE_FOR_CHARSET_P): Handle charset < 0 meansing unibyte
        text.
        (struct iterator_stack_entry): Add multibyte_p.

        * xdisp.c (string_pos): Use string_char_to_byte.
        (char_charset): Removed.

1998-08-03  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_draw_image_glyph_string_foreground): Draw a
        rectangle for a block cursor over an image without a mask.
        (x_stretch_block_cursor): Added.  Non-zero means don't draw
        a block cursor over a stretch as wide as that stretch.
        (x_draw_stretch_glyph_string): Use it.
        (x_draw_hollow_cursor): Ditto.

        * minibuf.c (read_minibuf): Use minibuf_prompt instead of prompt.
        (read_minibuf): Add front-sticky text property for prompt.

        * xdisp.c (char_charset): Return charset of a character,
        depending on whether or not multi-byte characters are enabled.

        * xfaces.c (Fset_face_charset_registry): Removed.
        (x_charset_registry): Determine registry from charset plist.

1998-08-02  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (get_next_display_element): Don't check for charset
        changes if multi-byte characters are not enabled.
        
        * xdisp.c (echo_area_display): Use the flush function from the
        redisplay interface.  
        * keyboard.c (detect_input_pending_run_timers): Likewise.

        * dispextern.h (produce_*glyphs_hook): Removed.
        * term.c (produce_*glyphs): Ditto.
        (cursor_to): Remove pixel position parameters.

        * dispnew.c: Remove hooks for window-based redisplay, introduce
        a redisplay interface structure.

        * xterm.c (x_per_char_metric): Return default char metrics if per
        char metric exists but contains a zero width.  Adobe Courier seems
        to contain such characters.

        * xdisp.c (compute_line_metrics): Compute the width of rows
        without stopping at glyphs with zero width.

1998-08-01  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (display_mode_line): If nothing was displayed at all,
        display a space.
        (hscroll_window_tree): Don't subtract 1 from target point if equal
        to ZV and window is not the selected window.

        * dispnew.c (check_matrix_invariants): Remove check for window
        start at BEGV or after newline.  This happens in rare cases
        intentionally.

1998-07-31  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (x_charset_registry): Use STRING_BYTES.
        (syms_of_xfaces): Add Vface_default_registry.
        (x_charset_registry): Use it.

        * xdisp.c (run_window_scroll_functions): Run window scroll functions.
        (redisplay_window): Use it.

        * dispnew.c (update_text_area): Handle lbearing of deleted text
        by backing up one character.

1998-07-30  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (adjust_glyph_matrix): Use a different check to 
        decide to do nothing.

        * xfaces.c (face_at_string_position): Additional parameter
        mode_line_p.  If non-zero, merge with the mode line face
        instead of the default face.
        * dispextern.h (struct it): Add mode_line_p.
        * xdisp.c (init_iterator): Set it.
        (compute_face_in_string): Use it.
        (face_before_or_after_it_pos): Handle strings.
        (get_next_display_element): Don't look for relief end in C strings.
        (next_element_from_string): Deliver string position instead of
        buffer position.

        * xterm.c (x_flush): Flush X output buffer.
        (XTflash): Use it.

        * xfaces.c (lface_from_face_name): Renamed from lface_from_symbol.
        Allow strings as face names.

        * xfns.c (forall_images_in_image_cache): Check that frame is
        alive.

        * widget.c (EmacsFrameDestroy): Remove call to free_frame_faces;
        it's also called from x_destroy_window.  Since this function is
        called from X, freeing stuff allocated with xmalloc is dangerous
        here, anyway.

        * xfaces.c (free_realized_faces): Don't clear current matrices
        of a frame being destroyed.

        * frame.c (make_frame): Call set_window_buffer instead of 
        Fset_window_buffer.

        * window.c (set_window_buffer): Extracted from Fset_window_buffer,
        with an additional argument specifying whether or not hooks may
        be called.
        (Fset_window_buffer): Call it.

        * dispnew.c (clear_desired_matrices): Check that frame has
        a valid root window before clearing matrices in the window tree.
        (clear_current_matrices): Ditto.
        (clear_window_matrices): If GLYPH_DEBUG, check that hchild and
        vchild are valid windows if not nil.

        * xfaces.c (merge_face_vector_with_property): Allow :reverse-video
        for :inverse-video.
        (Finternal_set_lisp_face_attribute): Ditto.
        (Finternal_set_lisp_face_attribute_from_resource): Ditto.
        (Finternal_get_lisp_face_attribute): Ditto.
        (Finternal_lisp_face_attribute_values): Ditto.
        (syms_of_xfaces): Define the symbol `:reverse-video'.

        * xdisp.c (get_glyph_property): Renamed from
        fill_iterator_from_glyph_property.
        (next_element_from_buffer): Handle case that no `glyph' property
        was found correctly.
        (display_line): Extend face to end of line only if we have faces.

1998-07-29  Gerd Moellmann  <gerd@gnu.org>

        * dispnew.c (Fshow_cursor): Renamed from blink_cursor.  Take
        additional window argument.

        * xdisp.c (reseat_at_previous_visible_line_start): Renamed from
        set_iterator_to_previous_visible_line_start.
        (reseat_at_next_visible_line_start): Likewise.
        (compute_stop_pos): Renamed from set_iterator_stop_pos.
        (face_before_or_after_it_pos): Renamed from get_face_at_it_pos.
        (compute_face_in_buffer): Renamed from
        compute_face_at_iterator_position.
        (compute_face_in_string): Renamed from
        compute_face_at_iterator_string_position.
        (get_space_width): Renamed from get_iterator_space_width.
        (next_overlay_string): Renamed from
        set_iterator_to_next_overlay_string.
        (get_overlay_strings): Renamed from
        get_overlay_strings_at_iterator_position.
        (restore_overlay_strings): Renamed from
        setup_overlay_strings_from_glyph_pos.
        (restore_dpvec): Renamed from setup_iterator_dpvec_from_glyph_pos.
        (init_from_display_pos): Renamed from init_iterator_from_glyph_pos.
        (init_to_row_start): Renamed from init_iterator_to_row_start.
        (init_to_row_end): Formerly init_iterator_to_next_row_start.

        * xterm.c: Merge with 20.2.97.
        (x_produce_glyphs): Use x_append_stretch_glyph for tabs.

        * dispextern.h (struct glyph): Replace text_pos position with
        simple charpos.

        * xdisp.c (this_line_start_pos): Use struct text_pos.
        (this_line_end_pos): Renamed from .*endpos; use struct text_pos.
        (enum move_it_result): Renamed from move_iterator_result.
        (string_pos_nchars_ahead): Compute text_pos in a string from a
        known text_pos plus a character delta.
        (string_pos): Compute text_pos in string from charpos.
        (c_string_pos): Likewise for a C string.
        (number_of_chars): Return number of characters in a possibly
        multi-byte C string.
        (check_it): Renamed from check_iterator.  Check that charpos and
        bytepos are in sync.
        (push_it): Renamed from save_iterator_settings.
        (pop_it): Renamed from restore_iterator_settings.
        (move_it_.*): Renamed from move_iterator_.*.
        (charset_at_position): Take charpos/bytepos into account.
        (back_to_previous_line_start): Set iterator to previous line start.
        (forward_to_next_line_start): Set iterator to next line start.
        (back_to_previous_visible_line_start): Renamed from 
        move_iterator_previous_visible_line_start.
        (set_iterator_to_next_visible_line_start): Handle charpos/bytepos.
        (get_face_at_it_pos): Renamed from get_face_from_cursor_pos.
        Handle charpos/bytepos.
        (compute_face_at_iterator_position): Handle charpos/bytepos.
        (compute_face_at_iterator_string_position): Likewise.
        (get_iterator_space_width): Likewise.
        (load_overlay_strings): Likewise.
        (get_overlay_strings_at_iterator_position): Likewise.
        (reseat_iterator): Take a text_pos position argument.
        (setup_iterator_overlay_strings_from_glyph_pos): Handle charpos/
        bytepos.
        (init_iterator): Take additional bytepos parameter.
        (reseat_iterator_to_string): Handle charpos/bytepos.
        (start_display): Take a text_pos parameter.  Handle charpos/bytepos.
        (next_element_from_string): Handle charpos/bytepos.
        (next_element_from_c_string): Likewise.
        (fill_iterator_from_glyph_property): Likewise.
        (next_element_from_buffer): Likewise.
        (set_iterator_to_next): Increment charpos and bytepos of an iterator.
        (move_iterator_in_display_line_to): Handle charpos/bytepos.
        (move_it_to): Likewise.
        (move_it_vertically_backward): Likewise.
        (move_it_vertically): Likewise.
        (move_it_by_lines): Likewise.
        (hscroll_window_tree): Likewise.
        (redisplay_internal): Likewise.
        (set_cursor_from_row): Likewise.
        (redisplay_window): Likewise.
        (try_window): Take a text_pos parameter.  Handle charpos/bytepos.
        (try_window_reusing_current_matrix): Handle charpos/bytepos.
        (get_first_unchanged_at_end_row): Compute and return delta_bytes.
        (try_window_id): Handle charpos/bytepos.
        (Ftrace_redisplay_toggle): Return Qnil.
        (get_overlay_arrow_glyph_row): Handle charpos/bytepos.
        (insert_left_trunc_glyphs): Likewise.

        * dispnew.c: `Merge' with 20.2.97 (it's really too different to
        do a real merge).
        (increment_glyph_matrix_buffer_positions): Add parameter delta_bytes.
        (increment_glyph_row_buffer_positions): Ditto.
        (copy_glyph_row_contents): Ditto.
        (check_matrix_invariants): Add additional checks for charpos/
        bytepos consistency.
        (direct_output_for_insert): Changed for charpos/bytepos.
        (buffer_posn_from_coords): Likewise.  Put code dealing with 
        `direction-reversed' in #if 0.

        * xterm.h: Merge with 20.2.97.
        
        * frame.h: Merge with 20.2.97.

        * window.h: Merge with 20.2.97.  Add window_end_bytepos.

        * dispextern.h (MATRIX_ROW_START_CHARPOS): Get charpos of a row
        start.
        (MATRIX_ROW_START_BYTEPOS): Likewise for the byte position.
        (MATRIX_ROW_END_CHARPOS): Likewise for the row end.
        (MATRIX_ROW_END_BYTEPOS): Likewise for the row end byte position.
        (struct it): Various members renamed from .*pos to .*charpos.
        (IT_CHARPOS): Access current buffer character position of an
        iterator.
        (IT_BYTEPOS): Access current buffer byte position of an iterator.
        (IT_STRING_CHARPOS): Access current string character position of
        an iterator.
        (IT_STRING_BYTEPOS): Access current string byte position of
        an iterator.
        (globally): Add function prototypes from 20.2.97.

        * everywhere: Use P_ instead of PROTO for function prototypes
        because everyone else seems to use P_.

        * dispextern.h (struct text_pos): Structure describing a charpos/
        bytepos position in text.
        (BYTEPOS): Access the byte position part of a text_pos.
        (CHARPOS): Likewise for the character position.
        (SET_TEXT_POS): Set a text_pos from a character and byte position.
        (INC_TEXT_POS, DEC_TEXT_POS): Increment/decrement a text position.
        (SET_TEXT_POS_FROM_MARKER): Set a text_pos from a marker.
        (SET_MARKER_FROM_TEXT_POS): Set a marker from a text_pos.
        (TEXT_POS_EQUAL_P): Compare two text_pos structures for equality.
        (struct display_pos): Renamed from glyph_pos. Use struct text_pos
        for buffer and string positions.
        (struct glyph): Use text_pos.
        (struct it): Renamed from display_iterator.  Use text_pos.

1998-07-23  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (x_kill_gs_process): Get image colors from XImage of a
        pixmap.

1998-07-21  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (struct glyph_row): New flag indicate_zv_line_p.
        * xterm.c (x_draw_row_bitmaps): Use it.
        * dispnew.c (row_equal_p): Ditto.
        (update_window_line): Ditto.

        * xfns.c (prepare_image_for_display): Don't set loading_failed_p
        flag of images.

        * dispextern.h (struct image): Removed member loading_failed_p.
        It's probably better to have the chance to try to load an image
        again.

1998-07-20  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_draw_bitmap): Draw bitmap for empty lines ending
        at ZV if `indicate-zv-lines' is non-nil.
        (x_draw_row_bitmaps): Compute bitmap for `indicate-zv-lines'.

        * dispnew.c (row_equal_p): Compare displays_text_p and
        ends_at_zv_p flags of rows.
        (update_window_line): Ditto.

        * buffer.h (struct buffer): New member indicate_zv_lines.

        * buffer.c (init_buffer_once): Add default for `indicate-zv-lines'.
        (init_buffer_once): New variable `default-indicate-zv-lines'.
        (syms_of_buffer): New buffer-local varianle `indicate-zv-lines'.

        * xdisp.c (redisplay_window): Don't try moving the cursor
        if current glyph row w->last_cursor.vpos isn't enabled.

        * xterm.c (bitmap_type): Add ZV_LINE_BITMAP.

        * window.c (Fset_window_vscroll): Allow only negative scroll
        values.  Others don't seem to make sense, and this way it's easy
        to restore a vscroll of zero.

        * xterm.c (x_inverted_image_mask): Check that pixmap could be
        allocated.
        (x_draw_image_glyph_string_background): Don't clip if pixmap
        could not be created.

        * xfns.c (xbm_load_image_from_file): Check that pixmap could
        be created.
        (xbm_load): Ditto.
        (gs_load): Ditto.

        * xterm.c (x_get_glyph_overhangs): Take image and stretch
        glyphs into account.

        * xfaces.c (realize_default_face): Don't set font family of
        the default face from the fontset alias name for `fontset-startup'.

        * xfns.c (gs_load): Pass frame's pixel foreground and background
        color to the Lisp loader.

1998-07-19  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (tiff_image_p, tiff_load): Support TIFF images via
        libtiff34.

        * configure.in (--with-tiff, HAVE_TIFF): Added.

        * config.in (HAVE_TIFF): Added.

        * Makefile.in (LIBTIFF): Added.

        * xfns.c (jpeg_image_p, jpeg_load): Support JPEG images.

        * Makefile.in (LIBJPEG): Added.

        * xfns.c (resource_types): Enumerators renamed to RES_TYPE_NUMBER,
        RES_TYPE_BOOLEAN etc. because of conflict of `boolean' with
        jpeglib.h.

        * configure.in (HAVE_JPEG, --with-jpeg): Added.  On systems 
        where the library is installed in /usr/local/lib, e.g. FreeBSD,
        configure must be run with `--x-includes=/usr/X11R6/include:
        /usr/local/include --x-libraries=/usr/X11R6/lib:/usr/local/lib'.

1998-07-18  Gerd Moellmann  <gerd@gnu.org>

        * config.in (HAVE_JPEG): Added.

        * xfns.c (ct_init): Initialize color table used to map RGB colors
        from images to X pixel colors.
        (ct_free): Free color table.
        (ct_lookup): Look an RGB color up.
        (ct_allocated_colors): Get vector of allocated colors.
        (pbm_image_p): Test if image specification is a valid PPM 
        image specification.
        (pbm_scan_number): Scan a decimal ASCII number from a file.
        (pbm_load): Load a PPM image.

        * window.c (Fset_window_vscroll): Adjust glyph matrix if
        necessary.  Take canonical character units as parameter.
        (Fwindow_vscroll): Return canonical character units.

        * dispnew.c (allocate_matrices_for_window_redisplay): Add negative
        w->dy to display height for which glyph rows must be allocated.

1998-07-17  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (face_at_string_position): Merge in region face
        so that it won't overwrite the font in the region.
        (face_at_buffer_position): Ditto.
        (realize_basic_faces): Don't realize region face.

        * dispextern.h (enum face_id): REGION_FACE_ID removed.

        * xterm.c (x_set_glyph_string_background_width): Don't let
        cursor face extend to end of line.

        * xdisp.c (append_space): If adding space of default face,
        make sure glyph ist produced with right face.

        * xterm.c (x_clear_glyph_string_rect): Draw a rectangle in the
        background color of a glyph string.
        (x_draw_glyph_string_background): Call it.
        (x_draw_glyph_string_bg_rect): Ditto.
        (x_draw_stretch_glyph_string): Ditto.

1998-07-15  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (init_iterator): Initialize it->current_y to the
        window's vscroll w->dy.

        * window.c (Fwindow_vscroll): Return number of pixels window
        is vscrolled smoothly.
        (Fset_window_vscroll): Set the number.

        * xdisp.c (move_iterator_to): Recognize case MOVE_TO_POS and
        to_pos in truncated part of a line.

1998-07-14  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (move_iterator_in_display_line_to): If very first glyph
        doesn't fit on the line, truncate it, despite truncate_lines nil.
        (display_line): Ditto.

        * xfns.c: Experimental support for Ghostscript images.

        * xterm.c (x_term_init): Initialize new atoms DONE and PAGE.
        (XTread_socket): React on events from Ghostscript.
        (expose_frame): If width or height are zero, redraw entire frame.
        (XTread_socket): Call expose_frame after receiving event from
        Ghostscript.

        * xterm.h (struct x_display_info): Add atoms DONE and PAGE
        for Ghostscript support.

        * xdisp.c (redisplay_internal): Return quickly if called
        recursively.

        * alloc.c (NSTATICS): Increased to 1024.

1998-07-08  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_append_stretch_glyph): Append a stretch glyph to an
        iterator's glyph row.
        (x_produce_stretch_glyph): Call it.
        (x_produce_glyphs): Handle `space-width' property; call
        x_append_stretch_glyph.

        * xdisp.c (syms_of_xdisp): Add symbol `space-width' used as a text
        property.
        (get_iterator_space_width): Determine value of `space-width'
        property at iterator's position.
        (reseat_iterator): Call it.
        (next_element_from_string): Ditto.
        (next_element_from_buffer): Ditto.
        (init_iterator): Initialize space_width of iterator.
        (redisplay_internal): Don't goto end_of_redisplay if PT hasn't
        moved, but cursor blinks.
        (redisplay_internal): Set w->last_cursor_off_p after update.

        * dispextern.h (enum iterator_prop_idx): Add SPACE_WIDTH_PROP_IDX.
        (struct display_iterator): Add new member space_width.

        * window.h (struct window): Add last_cursor_off_p.

1998-07-07  Gerd Moellmann  <gerd@gnu.org>

        * Saved.

        * window.c (Fpos_visible_in_window_p): Case window not up to
        date---return nil if iterator hasn't reached position.

1998-07-06  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (text_outside_line_unchanged_p): Fix case that
        overlays have changed.
        (redisplay_window): Case cursor movement.  Don't try it if
        last_cursor.vpos is out of range.

        * xdisp.c (set_cursor_from_row): Set this_line_.* variables.  This
        way, the display optimization for the line containing the cursor
        is used more frequently, esp. when we have a blinking cursor.
        (display_line): Don't set this_line_.* variables.

        * xterm.c (x_redraw_cursor): Removed.
        (x_display_and_set_cursor): Set cursor type depending on
        cursor_off_p flag of window.

        * dispnew.c (redraw_cursor_hook): Removed.
        (Fblink_cursor): Additional parameter on_p to set the cursor_off_p
        member of the selected window.

        * xfaces.c (Fface_font): Added for compatibility with 20.2.

        * xterm.c (x_y_to_hpos_vpos): Return null if not over text.
        Return glyph area under x/y.
        (note_mouse_highlight): Use x_y_to_hpos_vpos in its new form.

        * keyboard.c (detect_input_pending_run_timers): Call gobble_input
        after redisplaying.

1998-07-05  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (text_outside_line_unchanged_p): Test if changes
        are all outside of a line of text.
        (redisplay_internal): Use it.

1998-06-30  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (next_element_from_buffer): After skipping over
        invisible text, look for the `glyph' property.
        (set_iterator_stop_pos): Ignore check positions in front
        of an iterator's current position.

        * xterm.c (show_mouse_face): Don't act on rows that don't exist
        anymore or which are marked as not having valid contents.

        * xfaces.c (Finternal_set_lisp_face_attribute): Don't free
        realized faces if new attribute value is equal to old value.

1998-06-29  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Finternal_make_lisp_face): Increment
        lface_id_to_name_size when lface_id_to_name is reallocated.

1998-06-27  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (set_iterator_stop_pos): Compute initial stop_pos
        as minimum of endpos and overlay_pos.
        (load_overlay_strings): Set next_overlay_pos of iterator to
        -1 if we don't have to check for more overlay strings.

1998-05-09  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (set_iterator_to_next_visible_line_start): Don't
        do anything if iterator is at ZV because scan_buffer doesn't
        work otherwise.

        * xterm.c (x_encode_char): Inline it.
        (x_get_char_font_and_encoding): Simplified.
        (x_per_char_metric): Inline it.

        * xterm.c (x_draw_glyph_string_relief): Use clipping.

        * xdisp.c (get_next_display_element): Check for end of relief
        face moved here from next_element_from_buffer.

        * xterm.c (x_produce_image_glyph): Add relief thickness.
        (x_produce_stretch_glyph): Ditto.

1998-05-08  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (fill_iterator_from_glyph_property): Handle glyph
        property value (space :width WIDTH :height HEIGHT :ascent ASCENT).

        * xterm.c (x_produce_stretch_glyph): Produce a stretch glyph
        from a glyph property.
        (x_produce_glyphs): Use it.

        * xdisp.c (set_iterator_to_next): Handle next_element_from_stretch.

        * xterm.c (x_produce_image_glyph): Add to current_x only if 
        in text area.
        (x_produce_glyphs): Ditto.

        * xdisp.c (display_line): Compute row height from glyphs in 
        marginal areas.

        * xterm.c (x_draw_image_glyph_string_background): Draw 
        background of an image glyph string.
        (x_draw_glyph_string_bg_rect): Draw a rectangular region of 
        the background of a glyph string.
        (x_draw_image_glyph_string_foreground): Draw the foreground of
        an image glyph string.
        (x_inverted_image_mask): Return the inverted mask of an image.

        * xfns.c (x_draw_image): Removed.

        * dispextern.h (struct image_type): Remove drawing function.

        * xfaces.c (load_face_colors): Swap colors if face is inverse.

        * xdisp.c (get_next_display_element): In marginal areas, translate
        newlines, tabs, etc. like normal control characters.

        * xfaces.c (Fface_color_supported_p): Transpose parameters frame
        and color.
        (free_realized_faces): Set frame garbaged.

        * xfaces.c (syms_of_xfaces): Add defsubr for
        internal-lisp-face-attribute-values.

1998-05-07  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_produce_image_glyph): Don't add glyph if area is
        full.
        (x_produce_image_glyph): Set IT->nglyphs to 1.
        (x_draw_image_glyph_string): Use inverted mask to draw background.

        * dispextern.h (struct image_type): Additional clipping rect
        parameters for drawing functions.

        * xterm.c (x_get_glyph_string_clip_rect): Get clip rect for 
        a glyph string.
        (x_draw_image_glyph_string): Use it and pass the rect to the
        image drawing function.

        * xdisp.c (fill_iterator_from_glyph_property): Use position of
        first character with `glyph' property as image position.  Set
        iterator back to that position as long as the image hasn't been
        consumed with set_iterator_to_next.
        (set_cursor_from_row): Accept when glyph with given position is
        not found in the row.  Set cursor x to end of line in that case,
        so that we can hscroll.
        (redisplay_internal): Correct computation of delta by which
        positions have changed in redisplay optimization for cursor
        row of selected window.

        * xdisp.c (display_line): Remove start_pos.
        (display_line): Fix bug preventing display optimization for 
        cursor line of selected window.
        (next_element_from_buffer): Avoid XSETBUFFER, use it->w->buffer
        instead.

        * dispnew.c (update_text_area): Use GLYPH_EQUAL_P.
        (update_text_area): Take glyph pixel width into account
        when trying to find a resync point.
        (row_equal_p): Compare glyphs in all areas.

1998-05-06  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_produce_glyphs): Don't add glyph if area is full.

        * dispextern.h (struct glyph_row): Use unsigned hash value.

        * xdisp.c (display_line): Simplified and made faster by setting
        the cursor with set_cursor_from_row.
        (set_cursor_from_row): Handle rows of desired matrix.

1998-05-05  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (set_cursor_from_row): Don't put cursor on glyphs
        with type != CHAR_GLYPH.
        (fill_iterator_from_glyph_property): Return void.  Set
        method to next_element_from_image.
        (next_element_from_image): Dummy function for delivering a
        single image id.
        (set_iterator_to_next): Add method next_element_from_image.
        (redisplay_window): When recentering, and cursor vpos is -1
        after display, assume middle of window is in first line displayed
        in window, and display again.
        (fill_iterator_from_glyph_property): Assign image glyph 
        the position of the first character having the glyph property.

        * dispextern.h (IMAGE_ASCENT): Compute ascent of image.
        * xfns.c (x_draw_image): Use it.
        * xterm.c (x_produce_image_glyph): Use it.

        * xterm.c (x_produce_image_glyph): Set iterator's pixel_width.

        * Makefile.in: Extraneous #define of LIBXPM removed.

        * xterm.c (x_produce_glyphs): Produce a STRETCH_GLYPH for tabs.
        (x_fill_stretch_glyph_string): Fill a glyph string from a 
        stretch glyph.
        (x_compute_glyph_string_overhangs): Compute overhangs only
        for text glyph strings.
        (x_draw_stretch_glyph_string): Draw a stretch glyph string.
        (x_draw_glyph_string): Call it.

        * dispextern.h (glyph_type): Add STRETCH_GLYPH.
        (struct glyph): Add sub-structure for stretchable glyphs.
        (GLYPH_EQUAL_P): Compare glyph type and u.val.

        * xdisp.c (get_overlay_arrow_glyph_row): Put face code into
        #ifdef HAVE_FACES.

        * xterm.c (x_produce_glyphs): Use ASCII face for spaces of a TAB.

        * xdisp.c (fill_iterator_from_glyph_property): Renamed from
        setup_iterator_from_glyph_property.  Don't do it for terminal
        frames.

        * xterm.c (x_produce_image_glyph): Produce glyph for image
        that can't be loaded.

        * xfns.c (lookup_image): If image can't be loaded, set its
        width and height so that we can draw a rectangle.
        (x_draw_image): Draw a rectangle for images that don't have
        a pixmap.
        (make_image): Set hash value.
        (image_spec_equal_p): Use image_spec_value.

        * xterm.c (expose_frame): Don't try to redraw if basic faces
        haven't benn realized yet.
        (x_draw_image_glyph_string): Fill background only if image 
        is not as tall as row.

1998-05-04  Gerd Moellmann  <gerd@gnu.org>

        * Makefile.in (LIBXPM): If not already defined, define to -lXpm.
        (LIBX)[HAVE_X11]: Add LIBXPM.

        * xfns.c (xpm_image_p): Implementation of image type functions
        for XPM.
        (xpm_load): Ditto.

        * dispextern.h (struct image): Add mask pixmap for XPM.

        * xfns.c (x_draw_image): Handle images with masks.

        * configure.in: --with-xpm added.  Code detecting -lXpm added.

        * config.in: Add HAVE_XPM.

        * xfns.c (xbm_draw): Removed.
        (x_draw_image): Default implementation for drawing images.
        (xbm_keyword_index): Remove XBM_DEPTH.
        (xbm_format): Remove `:depth'.
        (xbm_image_spec_from_file): Removed to reduce consing.
        (xbm_load_image_from_file): Added for the same reason. 

        * xterm.c (x_fill_image_glyph_string): Don't set ybase of 
        glyph string.
        (x_draw_image_glyph_string): Pass ybase to image draw function.

        * xfns.c (make_image): Set default baseline.

        * xterm.c (x_produce_image_glyph): Compute ascent of image
        from its height and baseline percentage.

        * xfns.c (xbm_keyword_index): Add XBM_BASELINE.
        (xbm_format): Add description for `:baseline'.
        (xbm_image_spec_from_file): Add keywords from original spec to
        result.
        (xbm_load): Set baseline of image.
        (xbm_image_p): Check range for baseline.

        * dispextern.h (struct image): Add member baseline.

        * xdisp.c (dump_glyph_matrix): Handle image glyphs.

        * term.c (produce_glyphs): Change assertion to allow DISP_IMAGE.

        * xdisp.c (get_next_display_element): Do character translations
        only if delivering characters.

1998-05-03  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (ITERATOR_AT_END_OF_LINE_P): Test for 
        DISP_CHARACTER.

        * xterm.c (x_produce_image_glyph): Poduce image glyphs.
        (x_produce_glyphs): Call x_produce_glyphs for DISP_IMAGE.

1998-05-02  Gerd Moellmann  <gerd@gnu.org>

        * xfns.c (prepare_image_for_display): Set image timestamp.
        (clear_image_cache): Clear images if image's timestamp +
        Vimage_eviction_seconds is > now.
        (syms_of_xfns): New variables image-eviction-seconds, and
        image-types.
        (add_image_format): Add to image-types.
        (xbm_load): Support new image spec format.
        (x_alloc_image_color): Allocate a color for an image.

        * dispextern.h (struct image): Add timestamp.

        * xfns.c (xbm_image_p): Allow bool-vectors, vectors of strings and
        vectors of bool-vectors.
        (xbm_lisp_object_from_file): Build new format image spec.

1998-05-01  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (init_frame_faces): Initialize image cache.
        (free_frame_faces): Free it.

        * xterm.c (x_delete_display): Don't free image cache.

        * emacs.c (main): Call init_xfns.

1998-04-30  Gerd Moellmann  <gerd@gnu.org>

        * alloc.c (mark_object): Mark objects in image cache.

        * xfns.c (x_set_internal_border_width): Correct call to 
        widget_store_internal_border_width.

        * widget.c (widget_store_internal_border): Return void.

        * xfns.c (x_destroy_bitmap): Use xfree instead of free.  Return
        void.
        (init_x_parm_symbols): Return void.
        (x_report_frame_params): Ditto.
        (x_set_border_pixel): Ditto.
        (syms_of_xfns): Ditto.
        (x_destroy_all_bitmaps): Use xfree instead of free.

        * xterm.h (FRAME_X_IMAGE_CACHE): Access the image cache of a frame.

        * xterm.c (x_term_init): Initialize image_cache of display info.
        (x_delete_display): Free image cache.

        * xterm.h (struct x_display_info): Add image_cache.

        * xfns.c (make_image_cache): Allocate a new image cache.
        (free_image_cache): Free an image cache.
        (make_image): Allocate an image.
        (free_image): Free an image.

        * dispextern.h (struct image): Structure describing an image.
        (struct image_cache): Structure describing an image cache.

1998-04-29  Gerd Moellmann  <gerd@gnu.org>

        * xdisp.c (check_iterator_glyph_property): Return int.  Value is
        non-zero if iterator is filled with something to return.
        (next_element_from_buffer): Immediately return if
        setup_iterator_from_glyph_prop has filled iterator with pixmap.
        (next_element_from_string): Likewise.

        * xfaces.c (load_pixmap): Allow to pass null for W_PTR and H_PTR.

        * dispextern.h (struct glyph): Add pixmap_id.
        (display_element_type): Add DISP_PIXMAP.

        * xmenu.c (popup_get_selection): Use xmalloc/xfree instead of
        malloc/free.

        * xfaces.c (clear_font_table): Free fonts not used by fontsets.
        (clear_face_cache): Call it.

        * xterm.c (x_query_font): Don't look at empty font table slots.
        (x_compute_min_glyph_bounds): Likewise.
        (x_term_init): Initialize font_table to null.
        (x_load_font): Change allocation of font_info structures so
        that it is possible to free fonts.

        * xfns.c (Fx_close_connection): Use xfree instead of free. 
        Only free fonts from filled font table entries.

        * xfaces.c (best_matching_font): Support use of scalable fonts.
        (Fface_scalable_fonts_mode): Toggle use of scalable fonts.

        * xterm.h (struct x_display_info): Remove screen_dpi, add resx
        and resy.
        * xterm.c (x_term_init): Compute resx and resy.

        * xfaces.c (split_font_name): Don't reject scalable fonts.

        * xterm.c (x_list_fonts): Set code exclusing scalable fonts 
        in #if 0.

        * xfaces.c (xlfd_point_size): Return 0 for fonts whose real
        point size cannot be determined.

        * xterm.h (FRAME_SMALLEST_CHAR_WIDTH): Return smallest character
        width over all fonts on a frame.
        (FRAME_SMALLEST_FONT_HEIGHT): Likewise for font height.
        * dispnew.c (adjust_frame_glyphs_for_window_redisplay): Use these
        macros.

        * xterm.c (x_font_min_bounds): Moved here from xfaces.c.
        (x_compute_min_char_bounds): Formerly min_char_bounds in xfaces.c.
        (x_load_font): Use x_compute_min_char_bounds.

        * xterm.h (struct x_display_info): New members smallest_char_width
        and smallest_font_height.

1998-04-28  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (PREPARE_FACE_FOR_DISPLAY): Call function with
        the same name if GC of face is zero.

        * dispextern.h (struct face): Member non_ascii_gc removed.

        * xterm.c (x_get_char_font_and_encoding): Return face's font
        for characters < 0177 in default face.  Prepare face for 
        display before returning it.
        (x_produce_glyphs): Use it->charset.
        (x_get_char_font_and_encoding): Simplified.
        (x_encode_char): Remove parameter `font'.

        * xfaces.c (choose_face_font): If registry from charset symbol
        doesn't contain a `-', make it a pattern by appending "*-*".

        * xdisp.c (check_iterator_glyph_property): Adjust limit for
        glyph_check_pos computation to character boundary.

1998-04-27  Gerd Moellmann  <gerd@gnu.org>

        * fontset.h (FONT_INFO_FROM_ID): Return null if ID is invalid.

        * xfaces.c (ascii_face_of_lisp_face): Get the id of the realized
        ASCII face for a given Lisp face id.

        * xdisp.c (set_iterator_stop_pos): Take glyph_check_pos into
        account.
        (reseat_iterator): Set glyph_check_pos. Handle case where 
        new position is < original position.
        (check_iterator_glyph_property): Handle glyph property in strings.
        (next_element_from_string): Call above function.
        (next_element_from_display_vector): Handle faces in glyphs.
        (get_next_display_element): Set face_id of glyphs for
        control chars to zero.

        * Makefile.in (term.o): Add dependency on dispextern.h.

        * xdisp.c (syms_of_xdisp): Add symbol `glyph'.
        (display_line): Handle marginal areas.
        (move_iterator_in_display_line_to): Likewise.

        * xfaces.c (Finternal_make_lisp_face): Assign Lisp faces an id.

        * xfaces.c (face_at_buffer_position): Don't merge with nil
        text property.
        (face_at_string_position): Ditto.

        * dispextern.h (struct display_iterator): Use a stack of saved
        values instead of saving check positions etc. individually.

        * xdisp.c (set_iterator_to_next): If end of Lisp string reached,
        maybe pop the iterator's stack.
        (save_iterator_settings): Push a value on iterator's stack.
        (get_overlay_strings_at_iterator_position): Use it.
        (restore_iterator_settings): Pop the stack.
        (set_iterator_to_next_overlay_string): Use it.

        * xfaces.c (try_font_list): Use alternative font families.

1998-04-26  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Fset_face_font_sort_order): Set the order in which
        font selection matches fonts.
        (Fface_font_sort_order): Return the font sort order.
        (best_matching_font): Find best matching font based on sort order.
        (cmp_font_names): Sort by given sort order.

        * dispextern.h (struct display_iterator): New member faces_p.
        * xdisp.c (init_iterator): Initialize it->faces_p.
        (compute_face_at_iterator_string_position): Use it.
        (compute_face_at_iterator_position): Use it.
        (init_iterator): Use it.
        (display_mode_line): Ditto.

        * xdisp.c (get_next_display_element): Put code choosing a face
        when the charset changes in #ifdef HAVE_FACES.

        * dispextern.h (FACE_FOR_CHARSET): Replacement for function 
        lookup_face_for_charset.

        * xfaces.c (free_font_names): Renamed from free_split_font_names.
        (free_all_realized_faces): Renamed from remove_all_realized_faces.

1998-04-25  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (best_matching_font): Return the name of the best
        matching font in an array of font_name structures.
        (choose_face_font): Use it.
        (choose_face_fontset_font): Use it.
        (find_best_weight_font): If final font found has same weight as
        the font we started with, return the original font because it is a
        better match for the resolution of the display.
        (find_best_slant_font): Likewise.
        (merge_face_vector_with_property): Check more invalid attribute
        values.
        (lface_suitable_for_charset_p): Replaced by a macro with the same
        name in upper-case.

1998-04-24  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (struct face): Member
        fontset_chosen_for_realization_p removed.

        * xfaces.c (cache_face): If face->fontset >= 0, add face to the
        end of the collision list, so that we find more specific faces
        first.
        (lookup_face_for_charset): Look up a new face if face->fontset >=
        0, and charset != CHARSET_COMPOSITION.

        * xfaces.c (split_font_name): Return zero if point size of font
        couldn't be computed.
        (realize_default_face): Use ASCII font of a fontset to determine
        font-related attributes of the default face.
        (face_fontset): Return fontset id for face family.
        (font_list): Additional parameter font_pattern.  If non-nil,
        return fonts matching that pattern.

1998-04-23  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (choose_face_fontset): If new fontset cannot be
        constructed, or fontset name cannot be split, return the id of the
        standard fontset.

        * xterm.c (XTframe_up_to_date): Check that frame is an X frame.
        When Emacs starts, it may be called for the initial frame which
        isn't an X frame.

        * dispextern.h (struct face): New members foreground_defaulted_p,
        background_defaulted_p.
        (struct face): Members `mask' and `cache' removed.

        * xfaces.c (load_color): Set them.
        (free_face_colors): Check them.
        (xlfd_point_size): Return -1 if resolution or point size of 
        font unknown.

        * xfaces.c (free_font): Removed.
        (load_face_font_or_fontset): Renamed from load_font.
        (load_face_font_or_fontset): Use message2 instead of signalling.
        (load_color): Likewise.
        (load_pixmap): Likewise.

        * xterm.h (struct x_display_info): Add screen_dpi.
        * xterm.c (x_term_init): Initialize it.
        * xfaces.c (xlfd_point_size): Use it.
        (split_font_name): Compute numeric XLFD_RESY.
        (cmp_font_names): Make fonts with an y-resolution more 
        similar to that of the frame appear first in the result.

        * xfaces.c (cache_face): If fontset_chosen_for_realization_p
        is set for the face to cache, add it to the end of the collision
        list.
        (try_font_list): If fonts for given family and registry cannot
        be found, first try to keep the registry, and choose a different
        family.
        (choose_face_font): Allow nfonts == 0.
        (try_font_list): Give up if no font matches given registry.

1998-04-22  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_get_char_font_and_encoding): Get font_info from
        font info id of the face.

        * xfaces.c (load_font): Set font_info_id.
        (realize_face): Ditto.

        * dispextern.h (struct face): Change member font_info to
        font_info_id.

        * fontset.h (FONT_INFO_ID): Build an ID from a font_info pointer.
        (FONT_INFO_FROM_ID): Get a font_info pointer from an ID.

        * xdisp.c (extend_face_to_end_of_line): If IT's current charset
        isn't ASCII, get the ASCII face before adding a space.
        (append_space): Likewise.
        (insert_left_trunc_glyphs): Initialize truncate_it's charset
        to -1 so that it will compute the right face for the truncation
        glyphs.

        * xfaces.c (realize_face): Set
        face->fontset_chosen_for_realization_p.
        (lookup_face_for_charset): If fontset wasn't specified originally
        and new charset != CHARSET_COMPOSITION, get a new face for that
        charset.

        * dispextern.h (struct face): New member
        fontset_chosen_for_realization_p_specified_p.  Set to 1 when
        realize_face has chosen a fontset to display composite characters
        for a Lisp face not specifying a fontset.

        * xdisp.c (extend_face_to_end_of_line): Move tests for default
        face and line already filled here.  Don't do anything if current
        face hasn't a relief or has a background equal to the frame
        background.

        * xfaces.c (split_font_name): Additional parameter numeric_p.
        Don't compute numeric values if it is non-zero.
        (choose_face_fontset): Call split_font_name with numeric_p == 0.
        (choose_face_fontset): Print a message if fontset contains a 
        font whose name cannot be split into fields.

1998-04-21  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (try_font_list): Try to load a list of fonts, 
        possibly using less restrictive patterns.
        (choose_face_font): Use it.

        * xterm.c (x_get_char_font_and_encoding): For charset !=
        CHARSET_ASCII use font_info of face if face hasn't a fontset set.

        * dispextern.h (struct face): New member font_info.

        * xfaces.c (load_font): Use FS_LOAD_FONT to load fonts for faces
        specifying a fontset as well as those not having a fontset.
        (free_font): Make it empty.
        (realize_face): Use changed load_font.

        * xterm.c (x_get_char_font_and_encoding): If face doesn't
        fit for charset, get the right one.

        * xfaces.c (load_font): Take frame and name parameter, return
        font.
        (free_font): Likewise.
        (split_font_name): Compute numeric values for height, swidth etc.
        (cmp_font_names): Use them.
        (find_best_width_font): Ditto.
        (find_best_height_font): Ditto.
        (find_best_weight_font): Ditto.
        (find_best_slant_font): Ditto.
        (lface_hash): Add weight, slant, swidth and relief to hash value.
        (lface_equal_p): Make it faster.
        (lface_from_symbol): Use assq_no_quit.
        (Fnote_default_face_changed): Removed.
        (cmp_font_names): Use strcmp instead of xstricmp.
        (face_charset_registries): Removed.

1998-04-20  Gerd Moellmann  <gerd@gnu.org>

        * frame.h (CHECK_FRAME): Give this macro a statement form.
        (CHECK_LIVE_FRAME): Ditto.

        * xfaces.c (find_best_width_font): Find the best matching font
        for a given width.
        (find_best_height_font): Likewise for height.
        (find_best_weight_font): Likewise for weight.
        (find_best_slant_font): Likewise for slant.
        (choose_face_font): Use them.
        (get_lface_attributes): Always return frame-local face attrs.
        (Finternal_merge_in_global_face): Merge local face with 
        global face attributes.

        * xfaces.c (check_lface_attrs, check_lface): Check consistency of
        Lisp face attributes.

1998-04-19  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Finternal_set_lisp_face_attribute): Add :bold
        and :italic for compatibility.
        (Finternal_set_lisp_face_attribute_from_resource): Handle
        :bold and :italic.  Handle boolean resource values for 
        :underline and :italic.

        * xfns.c (display_x_get_resource): Make it externally visible.

        * xfaces.c (lface_from_symbol): Take a frame as parameter.
        If that frame is non-null, return the frame-local face.
        (Finternal_make_lisp_face): Additional frame argument.
        (lface_attributes): Get face attributes from global and frame-local
        definitions.
        (Finternal_lisp_face_equal_p): Additional frame argument.
        (merge_lisp_face_vector_with_property): Ditto.
        (Frealize_basic_faces): Removed.
        (Finternal_get_lisp_face_attribute): Additional frame argument.
        (Finternal_lisp_face_p): Ditto.
        (load_color) [MSDOS]: Removed because it isn't clear how
        to do this for MS-DOS.

        * xfaces.c (lface_from_symbol): Get global face definition
        from face-global-alist.

        * xfaces.c (Finternal_set_lisp_face_attribute): Allow `t'
        as values for :underline and :inverse-video.
        (Finternal_set_lisp_face_attribute): Allow nil values.

1998-04-17  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (Finternal_make_lisp_face): Return Lisp face vector.

        * xfaces.c (syms_of_xfaces): Add Vall_faces.
        (Finternal_make_lisp_face): Add new face to Vall_faces.

        * xdisp.c (echo_area_display): Remove code recomputing faces.
        (redisplay_internal): Ditto.
        (init_iterator): Do it here.

        * xfaces.c (choose_face_font): Check that swidth doesn't change
        for subusequent attributes.
        (xlfd_point_size): Return int.

        * xdisp.c (redisplay_internal, echo_area-display): If realized
        faces have been cleared, call recompute_basic_faces.

        * xfaces.c (recompute_basic_faces): Free realized faces.  Reset
        face_attributes_changed_p.
        (remove_all_realized_faces): Remove all realized faces on 
        all frames.
        (Finternal_set_lisp_face_attribute): Call remove_all_realized_faces.

        * xdisp.c (redisplay_internal): If face attributes have been
        changed since the last redisplay, recompute basic faces.
        (echo_area_display): Ditto.

        * xfaces.c (clear_face_gcs): Renamed from clear_realized_face_cache.

        * xfaces.c (min_char_bounds): If face cache not yet present,
        don't try to get font dimensions from faces.

        * xterm.c (x_frame_mode_line_height): If face cache not present
        set, return default height.

        * alloc.c (mark_face_cache): Check for null faces.  Correct
        index bug.

        * dispextern.h (struct face): Renamed from struct rface.  Member
        underline renamed underline_p.  Make it a bit-field.

        * xfaces.c (init_frame_faces): Allocate face cache.
        (free_frame_faces): Free face cache.
        (recompute_basic_faces): Realize basic faces only if face cache is
        allocated, i.e. after init_frame_faces has been called.

        * frame.c (make_frame): Initialze face cache with null.

        * xfaces.c (same_size_fonts): Removed.

        * xterm.c (x_set_glyph_string_gc): Add post-condition 
        s->gc != 0.
        (x_set_mouse_face_gc): Ditto.
        (x_set_mode_line_face_gc): Ditto.

        * xfaces.c (realize_default_face): Return int.  Value is 
        zero if frame params don't contain enough information to 
        realize the default face.
        (realize_basic_faces): Ditto.
        (init_frame_faces): Realize basic faces.

        * xfns.c (x_set_font): First store real font name in frame
        parameters, then call recompute_basic_faces.

        * xfaces.c (recompute_basic_faces): Call realize_basic_faces.

1998-04-16  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (syms_of_xfaces): Correct calls to defsubr.

        * xfns.c (Fx_face_fixed_p): Removed.
        (Fx_list_fonts): Moved to xfaces.c.

        * xfaces.c (compute_face_at_buffer_pos): Renamed to
        face_at_buffer_position.  Parameter charset removed; always
        compute face for CHARSET_ASCII.
        (face_at_string_position): Renamed from
        compute_face_at_string_pos. Parameter charset removed; always
        compute for CHARSET_ASCII.
        (lookup_face_for_charset): Take frame parameter instead of 
        face_cache.
        (lookup_face): Ditto.
        (compute_char_face): Renamed from compute_glyph_face.

        * xdisp.c (init_iterator): Initialize charset member.
        (reseat_iterator_to_string): Ditto.
        (get_charset_at_buffer_position): Determine charset at
        buffer position in current_buffer.
        (reseat_iterator): Call above function.
        (compute_face_at_iterator_position): Call
        compute_face_at_buffer_pos.
        (compute_face_at_iterator_string_position): Call
        compute_face_at_string_pos.
        (get_face_from_id): Removed.
        (get_face_from_cursor_pos): Call compute_face_at_buffer_pos.
        Call get_charset_at_buffer_position.
        (reseat_iterator): Determine face if charset at pos differs
        from iterator's charset.
        (reseat_iterator_to_glyph_pos): Removed.

        * xfaces.c (compute_face_at_bufpos): Remove parameter charset.
        Determine charset from buffer position.
        (compute_string_char_face): Renamed to compute_face_at_string_pos.
        (compute_face_at_bufpos): Renamed to compute_face_at_buffer_pos.

        * dispextern.h (struct display_iterator): Add member charset.

1998-04-15  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (compute_char_face): Removed.

        * xdisp.c (get_overlay_arrow_glyph_row): Use compute_glyph_face
        with new parameter list.

        * xfaces.c (region_face): Removed.
        (allocate_face): Removed.
        (copy_face): Ditto.
        (face_eql): Removed.
        (intern_face): Removed.
        (clear_face_cache): Removed.
        (load_font): Ditto.
        (unload_font): Ditto.
        (load_color): Ditto.
        (unload_color): Ditto.
        (new_computed_face): Ditto.
        (intern_computed_face): Ditto.
        (ensure_face_ready): Ditto.
        (merge_faces): Ditto.
        (compute_base_face): Ditto.
        (merge_face_list): Ditto.
        (Fmake_face_internal): Removed.
        (Fset_face_attribute_internal): Ditto.
        (face_name_id_number): Removed.
        (Fframe_face_alist): Ditto.
        (Fset_frame_face_alist): Ditto.
        (Finternal_next_face_id): Ditto.

        * xterm.h (struct x_output): Remove computed_faces, and
        param_faces.  Remove macros accessing them.

        * xfaces.c: Entirely new face implementation added.

1998-04-11  Gerd Moellmann  <gerd@gnu.org>

        * dispextern.h (struct glyph_pos): Member `bufpos' renamed
        `charpos'.

1998-04-10  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_scroll_bar_move): Clear only regions not covered by
        scroll bar window to reduce flickering.  Clear entire height.

        * xdisp.c (move_iterator_vertically_backward): Set iterator's
        current_x and hpos to zero after moving to previous line
        start.

1998-04-03  Gerd Moellmann  <gerd@gnu.org>

        * frame.h (FRAME_FACE_CACHE): Access to a frame's face cache.

        * xfaces.c (xlfd_point_size): Compute relative point size of
        fonts from font and frame resolution.
        (sort_fonts): New function to sort fonts, temporarily setting
        font_frame to the frame in effect.
        (xlfd_point_size): Take additional frame parameter to be able
        to get at the display's resolution.

        * xterm.c (x_setup_relief_colors): Use WHITE_PIX_DEFAULT and
        BLACK_PIX_DEFAULT.
        (x_setup_relief_color): Use FRAME_X_SCREEN instead of default
        screen of display.

1998-03-31  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c (choose_face_fontset): Instantiate fontsets.

        * fontset.h: Add external declarations for Vfontset_alias_alist
        and Vglobal_fontset_alist.

        * xfaces.c (merge_lisp_face_vector_with_property): Simplified.
        (realize_default_face): If frame parameters contain an artificial
        font name naming a fontset, set the family of the default face to
        the fontset name given by the registry.

        * Makefile.in (alloc.o): Add dependency to dispextern.h.

1998-03-22  Gerd Moellmann  <gerd@gnu.org>

        * alloc.c (mark_object): Add function prototype.  Add cast to
        Lisp_Object pointer in call to mark_object for symbol names
        because this otherwise gives a warning from gcc 2.8.1.
        (mark_face_cache): Mark Lisp objects in realized faces.

1998-03-19  Gerd Moellmann  <gerd@gnu.org>

        * frame.h (struct frame): Add member face_cache.

        * alloc.c (mark_object): Mark face cache.
        (mark_face_cache): Mark Lisp faces in face cache of frame.

        * frame.c (make_frame): Initialize face_cache.
        (Fdelete_frame): Free it.

1998-03-18  Gerd Moellmann  <gerd@gnu.org>

        * xfaces.c: Very first skeleton of functions for face realization,
        face merging, face cache etc.

        * dispextern.h (struct rface): Realized faces.  Will replace
        struct face when tested.
        (struct face_cache): Realized face caches.

        * xdisp.c (init_iterator): Initialize area member of display
        iterator.

1998-03-17  Gerd Moellmann  <gerd@gnu.org>

        * xterm.c (x_append_glyph): Use it->area to store glyphs.

        * dispextern.h (struct display_iterator): New member area.

        * xterm.c (note_overwritten_text_cursor): Note when the text
        cursor of a window is overwritten.

        * xdisp.c (set_cursor_from_row): If PT is not found in the
        row, display the cursor at the start of the row.

        * dispnew.c (direct_output_forward_char): Call
        set_cursor_from_row.

        * xdisp.c (setup_iterator_overlay_strings_from_glyph_pos): If
        position is not in an overlay string, set iterator's position and
        method explicitly so.
        (set_cursor_from_row): Correct cursor position calculation. 
        Make it externally visible.
        (redisplay_window): Call set_cursor_from_row so that there is only
        one place where the cursor position is calculated from a current
        row.

        * dispextern.h (struct display_iterator): New member
        overlay_strings_at_end_processed_p.

        * xdisp.c (check_iterator): Perform sanity checks on
        display_iterators.
        (next_element_from_buffer): Check for overlay strings at ZV.

1998-03-16  Gerd Moellmann  <gerd@gnu.org>

        * buffer.c (init_buffer_once): Add left_margin_width and
        right_margin_width to buffer_local_flags.

        * dispnew.c (margin_glyphs_to_reserve): Function computing
        number of glyphs to reserve for a marginal area.
        (adjust_glyph_matrix): Call it.
        (adjust_frame_glyphs_for_frame_redisplay): Return if frame
        is not alive.

        * window.c (Fset_window_margins): Allow floats.

        * buffer.c (syms_of_buffer): Add buffer-local variables
        left-margin-width and right-margin-width.  Add defaults
        default-left-margin-width and default-right-margin-width.

        * buffer.h (struct buffer): New members left_margin_width
        and right_margin_width.

        * window.c (Fset_window_margins): Make window the last and
        optional argument.

        * xterm.c (x_draw_glyphs): Compute x-positions for rows with
        flag no_marginal_areas_p differently.
        (x_clear_end_of_line): Ditto.
        (x_draw_glyph_string_relief): Compute width of relief differently
        for rows with flag no_marginal_areas_p.

        * dispnew.c (update_window_line): Update marginal areas only
        for rows that don't have no_marginal_areas_p set.

        * xdisp.c (display_mode_line): Set row's flag no_marginal_areas_p.
        (display_menu_bar): Ditto.

        * dispextern.h (struct glyph_row): New member no_marginal_areas_p.

        * dispnew.c (adjust_glyph_matrix): Compute glyph pointers for
        marginal areas in window-based redisplay.

        * dispextern.h (struct glyph_matrix): New members
        left_margin_glyphs and right_margin_glyphs.

1998-03-15  Gerd Moellmann  <gerd@gnu.org>

        * minibuf.c (read_minibuf_unwind): Return Lisp_Object.

        * charset.c (non_ascii_char_to_string): Use char type parameters
        because the function is used that way from outside.  Use unsigned
        char internally.

        * window.c (change_window_height): Return void.
        (make_dummy_parent): Return void.
        (init_window_once): Return void.
        (syms_of_window): Ditto.
        (keys_of_window): Ditto.
        (delete_window): Correct return with and without value.

        * buffer.c (record_buffer): Return void.

        * marker.c (unchain_marker): Return void.

        * window.c (unshow_buffer): Return void.
        (replace_window): Ditto.
        (delete_window): Ditto.

        * term.c (delete_glyphs_hook): Void return type.
        (ring_bell_hook): Ditto.
        (set_terminal_window_hook): Ditto.

        * sysdep.c (init_sigio): Return void.

        * xterm.c (x_set_window_size): Return void.
        (x_calc_absolute_position): Ditto.
        (x_set_offset): Ditto.
        (x_focus_on_frame): Ditto.
        (x_unfocus_frame): Ditto.
        (x_make_frame_visible): Ditto.
        (x_make_frame_invisible): Ditto.
        (x_iconify_frame): Ditto.
        (x_destroy_window): Ditto.
        (x_wm_set_window_state): Ditto.
        (x_wm_set_icon_pixmap): Ditto.
        (x_wm_set_icon_position): Ditto.
        (x_initialize): Ditto.
        (x_error_quitter): Ditto.
        (x_destroy_window): Use xfree instead of free.

        * keyboard.c (clear_waiting_for_input): Return void.

        * xterm.c (x_wm_set_size_hint): Return void.
        (x_raise_frame): Ditto.
        (refreshicon): Ditto.
        (x_error_catcher): Ditto.
        (x_clear_errors): Ditto.

        * keyboard.c (record_asynch_buffer_change): Return void.

        * xterm.c (XTroï