X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/5335a4eeb80af7ce184e43f490f2ab7b55e68a0a..18e980c2ae616c850f2786bd889c26b0eab71ff3:/src/lisp.h diff --git a/src/lisp.h b/src/lisp.h index cb332acaed..b8213c516c 100644 --- a/src/lisp.h +++ b/src/lisp.h @@ -1,6 +1,6 @@ /* Fundamental definitions for GNU Emacs Lisp interpreter. - Copyright (C) 1985,86,87,93,94,95,97,98,1999,2000,01,02,03,2004 - Free Software Foundation, Inc. + Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2000, + 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of GNU Emacs. @@ -16,8 +16,8 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Emacs; see the file COPYING. If not, write to -the Free Software Foundation, Inc., 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ #ifndef EMACS_LISP_H #define EMACS_LISP_H @@ -35,8 +35,29 @@ Boston, MA 02111-1307, USA. */ be compared to the sizes recorded in Lisp strings. */ #define GC_CHECK_STRING_BYTES 1 + +/* Define this to check for short string overrun. */ + +#define GC_CHECK_STRING_OVERRUN 1 + +/* Define this to check the string free list. */ + +#define GC_CHECK_STRING_FREE_LIST 1 + +/* Define this to check for malloc buffer overrun. */ + +#define XMALLOC_OVERRUN_CHECK 1 + +/* Define this to check for errors in cons list. */ +/* #define GC_CHECK_CONS_LIST 1 */ + #endif /* 0 */ +#ifdef GC_CHECK_CONS_LIST +#define CHECK_CONS_LIST() check_cons_list() +#else +#define CHECK_CONS_LIST() 0 +#endif /* These are default choices for the types to use. */ #ifdef _LP64 @@ -178,18 +199,13 @@ union Lisp_Object struct { EMACS_INT val : VALBITS; - EMACS_UINT type : GCTYPEBITS; + enum Lisp_Type type : GCTYPEBITS; } s; struct { EMACS_UINT val : VALBITS; - EMACS_UINT type : GCTYPEBITS; + enum Lisp_Type type : GCTYPEBITS; } u; - struct - { - EMACS_UINT val : VALBITS; - enum Lisp_Type type : GCTYPEBITS; - } gu; } Lisp_Object; @@ -204,19 +220,14 @@ union Lisp_Object struct { - EMACS_UINT type : GCTYPEBITS; + enum Lisp_Type type : GCTYPEBITS; EMACS_INT val : VALBITS; } s; struct { - EMACS_UINT type : GCTYPEBITS; + enum Lisp_Type type : GCTYPEBITS; EMACS_UINT val : VALBITS; } u; - struct - { - enum Lisp_Type type : GCTYPEBITS; - EMACS_UINT val : VALBITS; - } gu; } Lisp_Object; @@ -242,7 +253,7 @@ LISP_MAKE_RVALUE (Lisp_Object o) /* If union type is not wanted, define Lisp_Object as just a number. */ #ifdef NO_UNION_TYPE -#define Lisp_Object EMACS_INT +typedef EMACS_INT Lisp_Object; #define LISP_MAKE_RVALUE(o) (0+(o)) #endif /* NO_UNION_TYPE */ @@ -288,30 +299,59 @@ enum pvec_type /* For convenience, we also store the number of elements in these bits. */ #define PSEUDOVECTOR_SIZE_MASK 0x1ff + +/* Number of bits to put in each character in the internal representation + of bool vectors. This should not vary across implementations. */ +#define BOOL_VECTOR_BITS_PER_CHAR 8 /***** Select the tagging scheme. *****/ +/* There are basically two options that control the tagging scheme: + - NO_UNION_TYPE says that Lisp_Object should be an integer instead + of a union. + - USE_LSB_TAG means that we can assume the least 3 bits of pointers are + always 0, and we can thus use them to hold tag bits, without + restricting our addressing space. + + If USE_LSB_TAG is not set, then we use the top 3 bits for tagging, thus + restricting our possible address range. Currently USE_LSB_TAG is not + allowed together with a union. This is not due to any fundamental + technical (or political ;-) problem: nobody wrote the code to do it yet. + + USE_LSB_TAG not only requires the least 3 bits of pointers returned by + malloc to be 0 but also needs to be able to impose a mult-of-8 alignment + on the few static Lisp_Objects used: all the defsubr as well + as the two special buffers buffer_defaults and buffer_local_symbols. */ /* First, try and define DECL_ALIGN(type,var) which declares a static variable VAR of type TYPE with the added requirement that it be TYPEBITS-aligned. */ -#ifndef DECL_ALIGN +#ifndef NO_DECL_ALIGN +# ifndef DECL_ALIGN /* What compiler directive should we use for non-gcc compilers? -stef */ -#if defined (__GNUC__) -#define DECL_ALIGN(type, var) \ - type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var -#endif +# if defined (__GNUC__) +# define DECL_ALIGN(type, var) \ + type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var +# endif +# endif #endif -#ifndef DECL_ALIGN -/* Can't USE_LSB_TAG if we can't enforce alignment of statically allocated - objects like lisp_subr and the special buffers in buffer.c. */ -#undef USE_LSB_TAG +/* Let's USE_LSB_TAG on systems where we know malloc returns mult-of-8. */ +#if defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ || defined MAC_OSX +/* We also need to be able to specify mult-of-8 alignment on static vars. */ +# if defined DECL_ALIGN +/* We currently do not support USE_LSB_TAG with a union Lisp_Object. */ +# if defined NO_UNION_TYPE +# define USE_LSB_TAG +# endif +# endif #endif -#ifndef USE_LSB_TAG -/* Just remove the alignment annotation if we don't use it. */ -#undef DECL_ALIGN -#define DECL_ALIGN(type, var) type var +/* If we cannot use 8-byte alignment, make DECL_ALIGN a no-op. */ +#ifndef DECL_ALIGN +# ifdef USE_LSB_TAG +# error "USE_LSB_TAG used without defining DECL_ALIGN" +# endif +# define DECL_ALIGN(type, var) type var #endif @@ -396,7 +436,7 @@ enum pvec_type #ifdef EXPLICIT_SIGN_EXTEND /* Make sure we sign-extend; compilers have been known to fail to do so. */ -#define XINT(a) (((a).i << (BITS_PER_EMACS_INT - VALBITS)) \ +#define XINT(a) (((a).s.val << (BITS_PER_EMACS_INT - VALBITS)) \ >> (BITS_PER_EMACS_INT - VALBITS)) #else #define XINT(a) ((a).s.val) @@ -411,10 +451,10 @@ enum pvec_type #define make_number(N) \ (__extension__ ({ Lisp_Object _l; _l.s.val = (N); _l.s.type = Lisp_Int; _l; })) #else -extern Lisp_Object make_number (); +extern Lisp_Object make_number P_ ((EMACS_INT)); #endif -#define EQ(x, y) ((x).s.val == (y).s.val) +#define EQ(x, y) ((x).i == (y).i) #endif /* NO_UNION_TYPE */ @@ -560,9 +600,19 @@ struct Lisp_Cons /* Please do not use the names of these elements in code other than the core lisp implementation. Use XCAR and XCDR below. */ #ifdef HIDE_LISP_IMPLEMENTATION - Lisp_Object car_, cdr_; + Lisp_Object car_; + union + { + Lisp_Object cdr_; + struct Lisp_Cons *chain; + } u; #else - Lisp_Object car, cdr; + Lisp_Object car; + union + { + Lisp_Object cdr; + struct Lisp_Cons *chain; + } u; #endif }; @@ -575,10 +625,10 @@ struct Lisp_Cons invalidated at arbitrary points.) */ #ifdef HIDE_LISP_IMPLEMENTATION #define XCAR_AS_LVALUE(c) (XCONS ((c))->car_) -#define XCDR_AS_LVALUE(c) (XCONS ((c))->cdr_) +#define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_) #else #define XCAR_AS_LVALUE(c) (XCONS ((c))->car) -#define XCDR_AS_LVALUE(c) (XCONS ((c))->cdr) +#define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr) #endif /* Use these from normal code. */ @@ -680,6 +730,14 @@ struct Lisp_Vector indexed by (charset-id + 128). */ #define CHAR_TABLE_ORDINARY_SLOTS 384 +/* These are the slot of the default values for single byte + characters. As 0x9A is never be a charset-id, it is safe to use + that slot for ASCII. 0x9E and 0x80 are charset-ids of + eight-bit-control and eight-bit-graphic respectively. */ +#define CHAR_TABLE_DEFAULT_SLOT_ASCII (0x9A + 128) +#define CHAR_TABLE_DEFAULT_SLOT_8_BIT_CONTROL (0x9E + 128) +#define CHAR_TABLE_DEFAULT_SLOT_8_BIT_GRAPHIC (0x80 + 128) + /* This is the number of slots that apply to characters of ASCII and 8-bit Europeans only. */ #define CHAR_TABLE_SINGLE_BYTE_SLOTS 256 @@ -1182,7 +1240,10 @@ struct Lisp_Save_Value { int type : 16; /* = Lisp_Misc_Save_Value */ unsigned gcmarkbit : 1; - int spacer : 15; + int spacer : 14; + /* If DOGC is set, POINTER is the address of a memory + area containing INTEGER potential Lisp_Objects. */ + unsigned int dogc : 1; void *pointer; int integer; }; @@ -1224,17 +1285,21 @@ union Lisp_Misc /* Lisp floating point type */ struct Lisp_Float { + union + { #ifdef HIDE_LISP_IMPLEMENTATION - double data_; + double data_; #else - double data; + double data; #endif + struct Lisp_Float *chain; + } u; }; #ifdef HIDE_LISP_IMPLEMENTATION -#define XFLOAT_DATA(f) (XFLOAT (f)->data_) +#define XFLOAT_DATA(f) (XFLOAT (f)->u.data_) #else -#define XFLOAT_DATA(f) (XFLOAT (f)->data) +#define XFLOAT_DATA(f) (XFLOAT (f)->u.data) #endif /* A character, declared with the following typedef, is a member @@ -1354,7 +1419,7 @@ typedef unsigned char UCHAR; /* Data type checking */ -#define NILP(x) (XFASTINT (x) == XFASTINT (Qnil)) +#define NILP(x) EQ (x, Qnil) #define GC_NILP(x) GC_EQ (x, Qnil) #define NUMBERP(x) (INTEGERP (x) || FLOATP (x)) @@ -1633,8 +1698,16 @@ extern void defvar_kboard P_ ((char *, int)); #define DEFVAR_LISP_NOPRO(lname, vname, doc) defvar_lisp_nopro (lname, vname) #define DEFVAR_BOOL(lname, vname, doc) defvar_bool (lname, vname) #define DEFVAR_INT(lname, vname, doc) defvar_int (lname, vname) + +/* TYPE is nil for a general Lisp variable. + An integer specifies a type; then only LIsp values + with that type code are allowed (except that nil is allowed too). + LNAME is the LIsp-level variable name. + VNAME is the name of the buffer slot. + DOC is a dummy where you write the doc string as a comment. */ #define DEFVAR_PER_BUFFER(lname, vname, type, doc) \ defvar_per_buffer (lname, vname, type, 0) + #define DEFVAR_KBOARD(lname, vname, doc) \ defvar_kboard (lname, \ (int)((char *)(¤t_kboard->vname) \ @@ -1730,11 +1803,15 @@ extern char *stack_bottom; #ifdef SYNC_INPUT extern void handle_async_input P_ ((void)); extern int interrupt_input_pending; + #define QUIT \ do { \ if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ { \ + Lisp_Object flag = Vquit_flag; \ Vquit_flag = Qnil; \ + if (EQ (Vthrow_on_input, flag)) \ + Fthrow (Vthrow_on_input, Qt); \ Fsignal (Qquit, Qnil); \ } \ else if (interrupt_input_pending) \ @@ -1747,7 +1824,10 @@ extern int interrupt_input_pending; do { \ if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ { \ + Lisp_Object flag = Vquit_flag; \ Vquit_flag = Qnil; \ + if (EQ (Vthrow_on_input, flag)) \ + Fthrow (Vthrow_on_input, Qt); \ Fsignal (Qquit, Qnil); \ } \ } while (0) @@ -1803,16 +1883,21 @@ extern Lisp_Object case_temp2; NATNUMP (case_temp2)) \ ? XFASTINT (case_temp2) : case_temp1) -extern Lisp_Object Vascii_downcase_table; +extern Lisp_Object Vascii_downcase_table, Vascii_upcase_table; +extern Lisp_Object Vascii_canon_table, Vascii_eqv_table; /* Number of bytes of structure consed since last GC. */ extern int consing_since_gc; -/* Threshold for doing another gc. */ +/* Thresholds for doing another gc. */ extern EMACS_INT gc_cons_threshold; +extern EMACS_INT gc_relative_threshold; + +extern EMACS_INT memory_full_cons_threshold; + /* Structure for recording stack slots that need marking. */ /* This is a chain of structures, each of which points at a Lisp_Object variable @@ -2048,6 +2133,7 @@ extern Lisp_Object Qnumberp, Qnumber_or_marker_p; extern Lisp_Object Qinteger; extern void circular_list_error P_ ((Lisp_Object)); +EXFUN (Finteractive_form, 1); /* Defined in frame.c */ extern Lisp_Object Qframep; @@ -2257,6 +2343,7 @@ EXFUN (Felt, 2); EXFUN (Fmember, 2); EXFUN (Frassq, 2); EXFUN (Fdelq, 2); +EXFUN (Fdelete, 2); EXFUN (Fsort, 2); EXFUN (Freverse, 1); EXFUN (Fnreverse, 1); @@ -2279,6 +2366,7 @@ extern void clear_string_char_byte_cache P_ ((void)); extern int string_char_to_byte P_ ((Lisp_Object, int)); extern int string_byte_to_char P_ ((Lisp_Object, int)); extern Lisp_Object string_make_multibyte P_ ((Lisp_Object)); +extern Lisp_Object string_to_multibyte P_ ((Lisp_Object)); extern Lisp_Object string_make_unibyte P_ ((Lisp_Object)); EXFUN (Fcopy_alist, 1); EXFUN (Fplist_get, 2); @@ -2305,6 +2393,16 @@ EXFUN (Ftruncate, 2); extern void init_floatfns P_ ((void)); extern void syms_of_floatfns P_ ((void)); +/* Defined in fringe.c */ +extern void syms_of_fringe P_ ((void)); +extern void init_fringe P_ ((void)); +extern void init_fringe_once P_ ((void)); + +/* Defined in image.c */ +EXFUN (Finit_image_library, 2); +extern void syms_of_image P_ ((void)); +extern void init_image P_ ((void)); + /* Defined in insdel.c */ extern Lisp_Object Qinhibit_modification_hooks; extern void move_gap P_ ((int)); @@ -2338,6 +2436,7 @@ extern void adjust_after_replace P_ ((int, int, Lisp_Object, int, int)); extern void adjust_after_replace_noundo P_ ((int, int, int, int, int, int)); extern void adjust_after_insert P_ ((int, int, int, int, int)); extern void replace_range P_ ((int, int, Lisp_Object, int, int, int)); +extern void replace_range_2 P_ ((int, int, int, int, char *, int, int, int)); extern void syms_of_insdel P_ ((void)); /* Defined in dispnew.c */ @@ -2389,14 +2488,14 @@ extern void redisplay P_ ((void)); extern int check_point_in_composition P_ ((struct buffer *, int, struct buffer *, int)); extern void redisplay_preserve_echo_area P_ ((int)); -extern void mark_window_display_accurate P_ ((Lisp_Object, int)); extern void prepare_menu_bars P_ ((void)); void set_frame_cursor_types P_ ((struct frame *, Lisp_Object)); extern void syms_of_xdisp P_ ((void)); extern void init_xdisp P_ ((void)); extern Lisp_Object safe_eval P_ ((Lisp_Object)); -extern int pos_visible_p P_ ((struct window *, int, int *, int)); +extern int pos_visible_p P_ ((struct window *, int, int *, + int *, int *, int *, int)); /* Defined in vm-limit.c. */ extern void memory_warnings P_ ((POINTER_TYPE *, void (*warnfun) ())); @@ -2404,6 +2503,7 @@ extern void memory_warnings P_ ((POINTER_TYPE *, void (*warnfun) ())); /* Defined in alloc.c */ extern void check_pure_size P_ ((void)); extern void allocate_string_data P_ ((struct Lisp_String *, int, int)); +extern void reset_malloc_hooks P_ ((void)); extern void uninterrupt_malloc P_ ((void)); extern void malloc_warning P_ ((char *)); extern void memory_full P_ ((void)); @@ -2456,12 +2556,14 @@ extern Lisp_Object make_float P_ ((double)); extern void display_malloc_warning P_ ((void)); extern int inhibit_garbage_collection P_ ((void)); extern Lisp_Object make_save_value P_ ((void *, int)); +extern void free_misc P_ ((Lisp_Object)); extern void free_marker P_ ((Lisp_Object)); extern void free_cons P_ ((struct Lisp_Cons *)); extern void init_alloc_once P_ ((void)); extern void init_alloc P_ ((void)); extern void syms_of_alloc P_ ((void)); extern struct buffer * allocate_buffer P_ ((void)); +extern int valid_lisp_object_p P_ ((Lisp_Object)); /* Defined in print.c */ extern Lisp_Object Vprin1_to_string_buffer; @@ -2579,6 +2681,7 @@ extern Lisp_Object call6 P_ ((Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object EXFUN (Fdo_auto_save, 2); extern Lisp_Object apply_lambda P_ ((Lisp_Object, Lisp_Object, int)); extern Lisp_Object internal_catch P_ ((Lisp_Object, Lisp_Object (*) (Lisp_Object), Lisp_Object)); +extern Lisp_Object internal_lisp_condition_case P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); extern Lisp_Object internal_condition_case P_ ((Lisp_Object (*) (void), Lisp_Object, Lisp_Object (*) (Lisp_Object))); extern Lisp_Object internal_condition_case_1 P_ ((Lisp_Object (*) (Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object))); extern Lisp_Object internal_condition_case_2 P_ ((Lisp_Object (*) (int, Lisp_Object *), int, Lisp_Object *, Lisp_Object, Lisp_Object (*) (Lisp_Object))); @@ -2662,7 +2765,7 @@ EXFUN (Foverlay_start, 1); EXFUN (Foverlay_end, 1); extern void adjust_overlays_for_insert P_ ((EMACS_INT, EMACS_INT)); extern void adjust_overlays_for_delete P_ ((EMACS_INT, EMACS_INT)); -extern void fix_overlays_in_range P_ ((int, int)); +extern void fix_start_end_in_overlays P_ ((int, int)); extern void report_overlay_modification P_ ((Lisp_Object, Lisp_Object, int, Lisp_Object, Lisp_Object, Lisp_Object)); extern int overlay_touches_p P_ ((int)); @@ -2685,6 +2788,7 @@ EXFUN (Fbuffer_disable_undo, 1); EXFUN (Fbuffer_enable_undo, 1); EXFUN (Ferase_buffer, 0); extern Lisp_Object Qoverlayp; +extern Lisp_Object Qevaporate; extern Lisp_Object get_truename_buffer P_ ((Lisp_Object)); extern struct buffer *all_buffers; EXFUN (Fprevious_overlay_change, 1); @@ -2743,6 +2847,7 @@ extern void syms_of_fileio P_ ((void)); EXFUN (Fmake_temp_name, 1); extern void init_fileio_once P_ ((void)); extern Lisp_Object make_temp_name P_ ((Lisp_Object, int)); +EXFUN (Fmake_symbolic_link, 3); /* Defined in abbrev.c */ @@ -2751,14 +2856,16 @@ extern void syms_of_abbrev P_ ((void)); /* defined in search.c */ extern void shrink_regexp_cache P_ ((void)); EXFUN (Fstring_match, 3); -extern void restore_match_data P_ ((void)); -EXFUN (Fmatch_data, 2); -EXFUN (Fset_match_data, 1); +extern void restore_search_regs P_ ((void)); +EXFUN (Fmatch_data, 3); +EXFUN (Fset_match_data, 2); EXFUN (Fmatch_beginning, 1); EXFUN (Fmatch_end, 1); +extern void record_unwind_save_match_data P_ ((void)); EXFUN (Flooking_at, 1); extern int fast_string_match P_ ((Lisp_Object, Lisp_Object)); extern int fast_c_string_match_ignore_case P_ ((Lisp_Object, const char *)); +extern int fast_string_match_ignore_case P_ ((Lisp_Object, Lisp_Object)); extern int scan_buffer P_ ((int, int, int, int, int *, int)); extern int scan_newline P_ ((int, int, int, int, int, int)); extern int find_next_newline P_ ((int, int)); @@ -2771,7 +2878,7 @@ extern void syms_of_search P_ ((void)); extern Lisp_Object last_minibuf_string; extern void choose_minibuf_frame P_ ((void)); EXFUN (Fcompleting_read, 8); -EXFUN (Fread_from_minibuffer, 7); +EXFUN (Fread_from_minibuffer, 8); EXFUN (Fread_variable, 2); EXFUN (Fread_buffer, 3); EXFUN (Fread_minibuffer, 2); @@ -2819,6 +2926,7 @@ extern struct kboard *echo_kboard; extern void cancel_echoing P_ ((void)); extern Lisp_Object Qdisabled, QCfilter; extern Lisp_Object Vtty_erase_char, Vhelp_form, Vtop_level; +extern Lisp_Object Vthrow_on_input; extern int input_pending; EXFUN (Fdiscard_input, 0); EXFUN (Frecursive_edit, 0); @@ -2833,6 +2941,7 @@ EXFUN (Fevent_convert_list, 1); EXFUN (Fread_key_sequence, 5); EXFUN (Fset_input_mode, 4); extern int detect_input_pending P_ ((void)); +extern int detect_input_pending_ignore_squeezables P_ ((void)); extern int detect_input_pending_run_timers P_ ((int)); extern void safe_run_hooks P_ ((Lisp_Object)); extern void cmd_error_internal P_ ((Lisp_Object, char *)); @@ -2856,6 +2965,10 @@ extern int indented_beyond_p P_ ((int, int, double)); extern void syms_of_indent P_ ((void)); /* defined in frame.c */ +#ifdef HAVE_WINDOW_SYSTEM +extern Lisp_Object Vx_resource_name; +extern Lisp_Object Vx_resource_class; +#endif /* HAVE_WINDOW_SYSTEM */ extern Lisp_Object Qvisible; extern void store_frame_param P_ ((struct frame *, Lisp_Object, Lisp_Object)); extern void store_in_alist P_ ((Lisp_Object *, Lisp_Object, Lisp_Object)); @@ -2863,7 +2976,7 @@ extern Lisp_Object do_switch_frame P_ ((Lisp_Object, int, int)); extern Lisp_Object get_frame_param P_ ((struct frame *, Lisp_Object)); extern Lisp_Object frame_buffer_predicate P_ ((Lisp_Object)); EXFUN (Fframep, 1); -EXFUN (Fselect_frame, 2); +EXFUN (Fselect_frame, 1); EXFUN (Fselected_frame, 0); EXFUN (Fwindow_frame, 1); EXFUN (Fframe_root_window, 1); @@ -2927,13 +3040,13 @@ EXFUN (Fprocess_send_eof, 1); EXFUN (Fwaiting_for_user_input_p, 0); extern Lisp_Object Qprocessp; extern void kill_buffer_processes P_ ((Lisp_Object)); -extern int wait_reading_process_input P_ ((int, int, Lisp_Object, int)); -extern void deactivate_process P_ ((Lisp_Object)); +extern int wait_reading_process_output P_ ((int, int, int, int, + Lisp_Object, + struct Lisp_Process *, + int)); extern void add_keyboard_wait_descriptor P_ ((int)); extern void delete_keyboard_wait_descriptor P_ ((int)); extern void close_process_descs P_ ((void)); -extern void status_notify P_ ((void)); -extern int read_process_output P_ ((Lisp_Object, int)); extern void init_process P_ ((void)); extern void syms_of_process P_ ((void)); extern void setup_process_coding_systems P_ ((Lisp_Object)); @@ -2977,7 +3090,7 @@ extern void syms_of_macros P_ ((void)); /* defined in undo.c */ extern Lisp_Object Qinhibit_read_only; EXFUN (Fundo_boundary, 0); -extern Lisp_Object truncate_undo_list P_ ((Lisp_Object, int, int)); +extern void truncate_undo_list P_ ((struct buffer *)); extern void record_marker_adjustment P_ ((Lisp_Object, int)); extern void record_insert P_ ((int, int)); extern void record_delete P_ ((int, Lisp_Object)); @@ -2986,6 +3099,7 @@ extern void record_change P_ ((int, int)); extern void record_property_change P_ ((int, int, Lisp_Object, Lisp_Object, Lisp_Object)); extern void syms_of_undo P_ ((void)); +extern Lisp_Object Vundo_outer_limit; /* defined in textprop.c */ extern Lisp_Object Qfont, Qmouse_face; @@ -3004,10 +3118,13 @@ extern Lisp_Object next_single_char_property_change P_ ((Lisp_Object, /* defined in xmenu.c */ EXFUN (Fx_popup_menu, 2); -EXFUN (Fx_popup_dialog, 2); +EXFUN (Fx_popup_dialog, 3); extern void syms_of_xmenu P_ ((void)); /* defined in sysdep.c */ +#ifndef HAVE_GET_CURRENT_DIR_NAME +extern char *get_current_dir_name P_ ((void)); +#endif extern void stuff_char P_ ((char c)); extern void init_sigio P_ ((int)); extern void request_sigio P_ ((void)); @@ -3076,12 +3193,12 @@ extern int getloadavg P_ ((double *, int)); #ifdef HAVE_X_WINDOWS /* Defined in xfns.c */ extern void syms_of_xfns P_ ((void)); -extern void init_xfns P_ ((void)); -extern Lisp_Object Vx_resource_name; -extern Lisp_Object Vx_resource_class; -EXFUN (Fxw_display_color_p, 1); -EXFUN (Fx_file_dialog, 4); #endif /* HAVE_X_WINDOWS */ +#ifdef HAVE_WINDOW_SYSTEM +/* Defined in xfns.c, w32fns.c, or macfns.c */ +EXFUN (Fxw_display_color_p, 1); +EXFUN (Fx_file_dialog, 5); +#endif /* HAVE_WINDOW_SYSTEM */ /* Defined in xsmfns.c */ extern void syms_of_xsmfns P_ ((void)); @@ -3094,6 +3211,11 @@ extern void syms_of_xterm P_ ((void)); /* Defined in getloadavg.c */ extern int getloadavg P_ ((double [], int)); + +#ifdef MSDOS +/* Defined in msdos.c */ +EXFUN (Fmsdos_downcase_filename, 1); +#endif /* Nonzero means Emacs has already been initialized. Used during startup to detect startup of dumped Emacs. */ @@ -3107,9 +3229,7 @@ extern void xfree P_ ((POINTER_TYPE *)); extern char *xstrdup P_ ((const char *)); -#ifndef USE_CRT_DLL extern char *egetenv P_ ((char *)); -#endif /* Set up the name of the machine we're running on. */ extern void init_system_name P_ ((void)); @@ -3190,6 +3310,87 @@ extern Lisp_Object Vdirectory_sep_char; ? make_float (val) \ : make_number ((EMACS_INT)(val))) + +/* Checks the `cycle check' variable CHECK to see if it indicates that + EL is part of a cycle; CHECK must be either Qnil or a value returned + by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of + elements after which a cycle might be suspected; after that many + elements, this macro begins consing in order to keep more precise + track of elements. + + Returns nil if a cycle was detected, otherwise a new value for CHECK + that includes EL. + + CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so + the caller should make sure that's ok. */ + +#define CYCLE_CHECK(check, el, suspicious) \ + (NILP (check) \ + ? make_number (0) \ + : (INTEGERP (check) \ + ? (XFASTINT (check) < (suspicious) \ + ? make_number (XFASTINT (check) + 1) \ + : Fcons (el, Qnil)) \ + : (!NILP (Fmemq ((el), (check))) \ + ? Qnil \ + : Fcons ((el), (check))))) + + +/* SAFE_ALLOCA normally allocates memory on the stack, but if size is + larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */ + +#define MAX_ALLOCA 16*1024 + +extern Lisp_Object safe_alloca_unwind (Lisp_Object); + +#define USE_SAFE_ALLOCA \ + int sa_count = SPECPDL_INDEX (), sa_must_free = 0 + +/* SAFE_ALLOCA allocates a simple buffer. */ + +#define SAFE_ALLOCA(buf, type, size) \ + do { \ + if ((size) < MAX_ALLOCA) \ + buf = (type) alloca (size); \ + else \ + { \ + buf = (type) xmalloc (size); \ + sa_must_free++; \ + record_unwind_protect (safe_alloca_unwind, \ + make_save_value (buf, 0)); \ + } \ + } while (0) + +/* SAFE_FREE frees xmalloced memory and enables GC as needed. */ + +#define SAFE_FREE() \ + do { \ + if (sa_must_free) { \ + sa_must_free = 0; \ + unbind_to (sa_count, Qnil); \ + } \ + } while (0) + + +/* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */ + +#define SAFE_ALLOCA_LISP(buf, nelt) \ + do { \ + int size_ = (nelt) * sizeof (Lisp_Object); \ + if (size_ < MAX_ALLOCA) \ + buf = (Lisp_Object *) alloca (size_); \ + else \ + { \ + Lisp_Object arg_; \ + buf = (Lisp_Object *) xmalloc (size_); \ + arg_ = make_save_value (buf, nelt); \ + XSAVE_VALUE (arg_)->dogc = 1; \ + sa_must_free++; \ + record_unwind_protect (safe_alloca_unwind, arg_); \ + } \ + } while (0) + + #endif /* EMACS_LISP_H */ /* arch-tag: 9b2ed020-70eb-47ac-94ee-e1c2a5107d5e