-DEFUN ("minibuffer-complete", Fminibuffer_complete, Sminibuffer_complete, 0, 0, "",
- doc: /* Complete the minibuffer contents as far as possible.
-Return nil if there is no valid completion, else t.
-If no characters can be completed, display a list of possible completions.
-If you repeat this command after it displayed such a list,
-scroll the window of possible completions. */)
- ()
-{
- register int i;
- Lisp_Object window, tem;
-
- /* If the previous command was not this,
- mark the completion buffer obsolete. */
- if (! EQ (current_kboard->Vlast_command, Vthis_command))
- Vminibuf_scroll_window = Qnil;
-
- window = Vminibuf_scroll_window;
- /* If there's a fresh completion window with a live buffer,
- and this command is repeated, scroll that window. */
- if (! NILP (window) && ! NILP (XWINDOW (window)->buffer)
- && !NILP (XBUFFER (XWINDOW (window)->buffer)->name))
- {
- struct buffer *obuf = current_buffer;
-
- Fset_buffer (XWINDOW (window)->buffer);
- tem = Fpos_visible_in_window_p (make_number (ZV), window, Qnil);
- if (! NILP (tem))
- /* If end is in view, scroll up to the beginning. */
- Fset_window_start (window, make_number (BEGV), Qnil);
- else
- /* Else scroll down one screen. */
- Fscroll_other_window (Qnil);
-
- set_buffer_internal (obuf);
- return Qnil;
- }
-
- i = do_completion ();
- switch (i)
- {
- case 0:
- return Qnil;
-
- case 1:
- if (PT != ZV)
- Fgoto_char (make_number (ZV));
- temp_echo_area_glyphs (build_string (" [Sole completion]"));
- break;
-
- case 3:
- if (PT != ZV)
- Fgoto_char (make_number (ZV));
- temp_echo_area_glyphs (build_string (" [Complete, but not unique]"));
- break;
- }
-
- return Qt;
-}
-\f
-/* Subroutines of Fminibuffer_complete_and_exit. */
-
-/* This one is called by internal_condition_case to do the real work. */
-
-Lisp_Object
-complete_and_exit_1 ()
-{
- return make_number (do_completion ());
-}
-
-/* This one is called by internal_condition_case if an error happens.
- Pretend the current value is an exact match. */
-
-Lisp_Object
-complete_and_exit_2 (ignore)
- Lisp_Object ignore;
-{
- return make_number (1);
-}
-
-EXFUN (Fexit_minibuffer, 0) NO_RETURN;
-
-DEFUN ("minibuffer-complete-and-exit", Fminibuffer_complete_and_exit,
- Sminibuffer_complete_and_exit, 0, 0, "",
- doc: /* If the minibuffer contents is a valid completion then exit.
-Otherwise try to complete it. If completion leads to a valid completion,
-a repetition of this command will exit. */)
- ()
-{
- register int i;
- Lisp_Object val, tem;
-
- /* Allow user to specify null string */
- if (XINT (Fminibuffer_prompt_end ()) == ZV)
- goto exit;
-
- val = Fminibuffer_contents ();
- tem = Ftest_completion (val,
- Vminibuffer_completion_table,
- Vminibuffer_completion_predicate);
- if (!NILP (tem))
- {
- if (completion_ignore_case)
- { /* Fixup case of the field, if necessary. */
- Lisp_Object compl
- = Ftry_completion (val,
- Vminibuffer_completion_table,
- Vminibuffer_completion_predicate);
- if (STRINGP (compl)
- /* If it weren't for this piece of paranoia, I'd replace
- the whole thing with a call to do_completion. */
- && EQ (Flength (val), Flength (compl)))
- {
- del_range (XINT (Fminibuffer_prompt_end ()), ZV);
- Finsert (1, &compl);
- }
- }
- goto exit;
- }
-
- /* Call do_completion, but ignore errors. */
- SET_PT (ZV);
- val = internal_condition_case (complete_and_exit_1, Qerror,
- complete_and_exit_2);
-
- i = XFASTINT (val);
- switch (i)
- {
- case 1:
- case 3:
- goto exit;
-
- case 4:
- if (!NILP (Vminibuffer_completion_confirm))
- {
- temp_echo_area_glyphs (build_string (" [Confirm]"));
- return Qnil;
- }
- else
- goto exit;
-
- default:
- return Qnil;
- }
- exit:
- return Fexit_minibuffer ();
- /* NOTREACHED */
-}
-
-DEFUN ("minibuffer-complete-word", Fminibuffer_complete_word, Sminibuffer_complete_word,
- 0, 0, "",
- doc: /* Complete the minibuffer contents at most a single word.
-After one word is completed as much as possible, a space or hyphen
-is added, provided that matches some possible completion.
-Return nil if there is no valid completion, else t. */)
- ()
-{
- Lisp_Object completion, tem, tem1;
- register int i, i_byte;
- struct gcpro gcpro1, gcpro2;
- int prompt_end_charpos = XINT (Fminibuffer_prompt_end ());
-
- /* We keep calling Fbuffer_string rather than arrange for GC to
- hold onto a pointer to one of the strings thus made. */
-
- completion = Ftry_completion (Fminibuffer_completion_contents (),
- Vminibuffer_completion_table,
- Vminibuffer_completion_predicate);
- if (NILP (completion))
- {
- bitch_at_user ();
- temp_echo_area_glyphs (build_string (" [No match]"));
- return Qnil;
- }
- if (EQ (completion, Qt))
- return Qnil;
-
-#if 0 /* How the below code used to look, for reference. */
- tem = Fminibuffer_contents ();
- b = SDATA (tem);
- i = ZV - 1 - SCHARS (completion);
- p = SDATA (completion);
- if (i > 0 ||
- 0 <= scmp (b, p, ZV - 1))
- {
- i = 1;
- /* Set buffer to longest match of buffer tail and completion head. */
- while (0 <= scmp (b + i, p, ZV - 1 - i))
- i++;
- del_range (1, i + 1);
- SET_PT (ZV);
- }
-#else /* Rewritten code */
- {
- int buffer_nchars, completion_nchars;
-
- CHECK_STRING (completion);
- tem = Fminibuffer_completion_contents ();
- GCPRO2 (completion, tem);
- /* If reading a file name,
- expand any $ENVVAR refs in the buffer and in TEM. */
- if (! NILP (Vminibuffer_completing_file_name))
- {
- Lisp_Object substituted;
- substituted = Fsubstitute_in_file_name (tem);
- if (! EQ (substituted, tem))
- {
- tem = substituted;
- del_range (prompt_end_charpos, PT);
- Finsert (1, &tem);
- }
- }
- buffer_nchars = SCHARS (tem); /* # chars in what we completed. */
- completion_nchars = SCHARS (completion);
- i = buffer_nchars - completion_nchars;
- if (i > 0
- ||
- (tem1 = Fcompare_strings (tem, make_number (0),
- make_number (buffer_nchars),
- completion, make_number (0),
- make_number (buffer_nchars),
- completion_ignore_case ? Qt : Qnil),
- ! EQ (tem1, Qt)))
- {
- int start_pos;
-
- /* Make buffer (before point) contain the longest match
- of TEM's tail and COMPLETION's head. */
- if (i <= 0) i = 1;
- start_pos= i;
- buffer_nchars -= i;
- while (i > 0)
- {
- tem1 = Fcompare_strings (tem, make_number (start_pos), Qnil,
- completion, make_number (0),
- make_number (buffer_nchars),
- completion_ignore_case ? Qt : Qnil);
- start_pos++;
- if (EQ (tem1, Qt))
- break;
- i++;
- buffer_nchars--;
- }
- del_range (start_pos, start_pos + buffer_nchars);
- }
- UNGCPRO;
- }
-#endif /* Rewritten code */
-
- {
- int prompt_end_bytepos;
- prompt_end_bytepos = CHAR_TO_BYTE (prompt_end_charpos);
- i = PT - prompt_end_charpos;
- i_byte = PT_BYTE - prompt_end_bytepos;
- }
-
- /* If completion finds next char not unique,
- consider adding a space or a hyphen. */
- if (i == SCHARS (completion))
- {
- GCPRO1 (completion);
- tem = Ftry_completion (concat2 (Fminibuffer_completion_contents (),
- build_string (" ")),
- Vminibuffer_completion_table,
- Vminibuffer_completion_predicate);
- UNGCPRO;
-
- if (STRINGP (tem))
- completion = tem;
- else
- {
- GCPRO1 (completion);
- tem =
- Ftry_completion (concat2 (Fminibuffer_completion_contents (),
- build_string ("-")),
- Vminibuffer_completion_table,
- Vminibuffer_completion_predicate);
- UNGCPRO;
-
- if (STRINGP (tem))
- completion = tem;
- }
- }
-
- /* Now find first word-break in the stuff found by completion.
- i gets index in string of where to stop completing. */
- {
- int len, c;
- int bytes = SBYTES (completion);
- register const unsigned char *completion_string = SDATA (completion);
- for (; i_byte < SBYTES (completion); i_byte += len, i++)
- {
- c = STRING_CHAR_AND_LENGTH (completion_string + i_byte,
- bytes - i_byte,
- len);
- if (SYNTAX (c) != Sword)
- {
- i_byte += len;
- i++;
- break;
- }
- }
- }
-
- /* If got no characters, print help for user. */
-
- if (i == PT - prompt_end_charpos)
- {
- if (!NILP (Vcompletion_auto_help))
- Fminibuffer_completion_help ();
- return Qnil;
- }
-
- /* Otherwise insert in minibuffer the chars we got */
-
- if (! NILP (Vminibuffer_completing_file_name)
- && SREF (completion, SBYTES (completion) - 1) == '/'
- && PT < ZV
- && FETCH_CHAR (PT_BYTE) == '/')
- {
- del_range (prompt_end_charpos, PT + 1);
- }
- else
- del_range (prompt_end_charpos, PT);
-
- insert_from_string (completion, 0, 0, i, i_byte, 1);
- return Qt;
-}
-\f
-DEFUN ("display-completion-list", Fdisplay_completion_list, Sdisplay_completion_list,
- 1, 2, 0,
- doc: /* Display the list of completions, COMPLETIONS, using `standard-output'.
-Each element may be just a symbol or string
-or may be a list of two strings to be printed as if concatenated.
-If it is a list of two strings, the first is the actual completion
-alternative, the second serves as annotation.
-`standard-output' must be a buffer.
-The actual completion alternatives, as inserted, are given `mouse-face'
-properties of `highlight'.
-At the end, this runs the normal hook `completion-setup-hook'.
-It can find the completion buffer in `standard-output'.
-The optional second arg COMMON-SUBSTRING is a string.
-It is used to put faces, `completions-first-difference' and
-`completions-common-part' on the completion buffer. The
-`completions-common-part' face is put on the common substring
-specified by COMMON-SUBSTRING. If COMMON-SUBSTRING is nil
-and the current buffer is not the minibuffer, the faces are not put.
-Internally, COMMON-SUBSTRING is bound to `completion-common-substring'
-during running `completion-setup-hook'. */)
- (completions, common_substring)
- Lisp_Object completions;
- Lisp_Object common_substring;
-{
- Lisp_Object tail, elt;
- register int i;
- int column = 0;
- struct gcpro gcpro1, gcpro2, gcpro3;
- struct buffer *old = current_buffer;
- int first = 1;
-
- /* Note that (when it matters) every variable
- points to a non-string that is pointed to by COMPLETIONS,
- except for ELT. ELT can be pointing to a string
- when terpri or Findent_to calls a change hook. */
- elt = Qnil;
- GCPRO3 (completions, elt, common_substring);
-
- if (BUFFERP (Vstandard_output))
- set_buffer_internal (XBUFFER (Vstandard_output));
-
- if (NILP (completions))
- write_string ("There are no possible completions of what you have typed.",
- -1);
- else
- {
- write_string ("Possible completions are:", -1);
- for (tail = completions, i = 0; CONSP (tail); tail = XCDR (tail), i++)
- {
- Lisp_Object tem, string;
- int length;
- Lisp_Object startpos, endpos;
-
- startpos = Qnil;
-
- elt = XCAR (tail);
- if (SYMBOLP (elt))
- elt = SYMBOL_NAME (elt);
- /* Compute the length of this element. */
- if (CONSP (elt))
- {
- tem = XCAR (elt);
- CHECK_STRING (tem);
- length = SCHARS (tem);
-
- tem = Fcar (XCDR (elt));
- CHECK_STRING (tem);
- length += SCHARS (tem);
- }
- else
- {
- CHECK_STRING (elt);
- length = SCHARS (elt);
- }
-
- /* This does a bad job for narrower than usual windows.
- Sadly, the window it will appear in is not known
- until after the text has been made. */
-
- if (BUFFERP (Vstandard_output))
- XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output)));
-
- /* If the previous completion was very wide,
- or we have two on this line already,
- don't put another on the same line. */
- if (column > 33 || first
- /* If this is really wide, don't put it second on a line. */
- || (column > 0 && length > 45))
- {
- Fterpri (Qnil);
- column = 0;
- }
- /* Otherwise advance to column 35. */
- else
- {
- if (BUFFERP (Vstandard_output))
- {
- tem = Findent_to (make_number (35), make_number (2));
-
- column = XINT (tem);
- }
- else
- {
- do
- {
- write_string (" ", -1);
- column++;
- }
- while (column < 35);
- }
- }
-
- if (BUFFERP (Vstandard_output))
- {
- XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output)));
- Fset_text_properties (startpos, endpos,
- Qnil, Vstandard_output);
- }
-
- /* Output this element.
- If necessary, convert it to unibyte or to multibyte first. */
- if (CONSP (elt))
- string = Fcar (elt);
- else
- string = elt;
- if (NILP (current_buffer->enable_multibyte_characters)
- && STRING_MULTIBYTE (string))
- string = Fstring_make_unibyte (string);
- else if (!NILP (current_buffer->enable_multibyte_characters)
- && !STRING_MULTIBYTE (string))
- string = Fstring_make_multibyte (string);
-
- if (BUFFERP (Vstandard_output))
- {
- XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output)));
-
- Fprinc (string, Qnil);
-
- XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output)));
-
- Fput_text_property (startpos, endpos,
- Qmouse_face, intern ("highlight"),
- Vstandard_output);
- }
- else
- {
- Fprinc (string, Qnil);
- }
-
- /* Output the annotation for this element. */
- if (CONSP (elt))
- {
- if (BUFFERP (Vstandard_output))
- {
- XSETINT (startpos, BUF_PT (XBUFFER (Vstandard_output)));
-
- Fprinc (Fcar (Fcdr (elt)), Qnil);
-
- XSETINT (endpos, BUF_PT (XBUFFER (Vstandard_output)));
-
- Fset_text_properties (startpos, endpos, Qnil,
- Vstandard_output);
- }
- else
- {
- Fprinc (Fcar (Fcdr (elt)), Qnil);
- }
- }
-
-
- /* Update COLUMN for what we have output. */
- column += length;
-
- /* If output is to a buffer, recompute COLUMN in a way
- that takes account of character widths. */
- if (BUFFERP (Vstandard_output))
- {
- tem = Fcurrent_column ();
- column = XINT (tem);
- }
-
- first = 0;
- }
- }
-
- if (BUFFERP (Vstandard_output))
- set_buffer_internal (old);
-
- if (!NILP (Vrun_hooks))
- {
- int count1 = SPECPDL_INDEX ();
-
- specbind (intern ("completion-common-substring"), common_substring);
- call1 (Vrun_hooks, intern ("completion-setup-hook"));
-
- unbind_to (count1, Qnil);
- }
-
- UNGCPRO;
-
- return Qnil;
-}
-
-
-static Lisp_Object
-display_completion_list_1 (list)
- Lisp_Object list;
-{
- return Fdisplay_completion_list (list, Qnil);
-}
-
-DEFUN ("minibuffer-completion-help", Fminibuffer_completion_help, Sminibuffer_completion_help,
- 0, 0, "",
- doc: /* Display a list of possible completions of the current minibuffer contents. */)
- ()
-{
- Lisp_Object completions;
-
- message ("Making completion list...");
- completions = Fall_completions (Fminibuffer_completion_contents (),
- Vminibuffer_completion_table,
- Vminibuffer_completion_predicate,
- Qt);
- clear_message (1, 0);
-
- if (NILP (completions))
- {
- bitch_at_user ();
- temp_echo_area_glyphs (build_string (" [No completions]"));
- }
- else
- {
- /* Sort and remove duplicates. */
- Lisp_Object tmp = completions = Fsort (completions, Qstring_lessp);
- while (CONSP (tmp))
- {
- if (CONSP (XCDR (tmp))
- && !NILP (Fequal (XCAR (tmp), XCAR (XCDR (tmp)))))
- XSETCDR (tmp, XCDR (XCDR (tmp)));
- else
- tmp = XCDR (tmp);
- }
- internal_with_output_to_temp_buffer ("*Completions*",
- display_completion_list_1,
- completions);
- }
- return Qnil;
-}