(GETPGRP_NO_ARG): If Glibc 2.1 or later,

[gnu-emacs] / src / minibuf.c

diff --git a/src/minibuf.c b/src/minibuf.c
index f99bffdf556f505d229fe6ba7931673c818d5e20..0db5e62677af2003d15b7ccf3c52a6cd486a7a21 100644 (file)
--- a/src/minibuf.c
+++ b/src/minibuf.c
@@ -23,6 +23,7 @@ Boston, MA 02111-1307, USA.  */
 #include "lisp.h"
 #include "commands.h"
 #include "buffer.h"
+#include "charset.h"
 #include "dispextern.h"
 #include "frame.h"
 #include "window.h"
@@ -322,7 +323,7 @@ read_minibuf (map, initial, prompt, backup_n, expflag, histvar, histpos)
     {
       Finsert (1, &initial);
       if (!NILP (backup_n) && INTEGERP (backup_n))
-       Fforward_char (backup_n);
+       Fgoto_char (make_number (PT + XFASTINT (backup_n)));
     }
 
   echo_area_glyphs = 0;
@@ -921,6 +922,7 @@ scmp (s1, s2, len)
      int len;
 {
   register int l = len;
+  register unsigned char *start = s1;
 
   if (completion_ignore_case)
     {
@@ -935,7 +937,15 @@ scmp (s1, s2, len)
   if (l == 0)
     return -1;
   else
-    return len - l;
+    {
+      int match = len - l;
+
+      /* Now *--S1 is the unmatching byte.  If it is in the middle of
+         multi-byte form, we must say that the multi-byte character
+         there doesn't match.  */
+      while (match && *--s1 >= 0xA0) match--;
+      return match;
+    }
 }
 \f
 DEFUN ("all-completions", Fall_completions, Sall_completions, 2, 4, 0,
@@ -1161,38 +1171,6 @@ DEFUN ("completing-read", Fcompleting_read, Scompleting_read, 2, 6, 0,
   return unbind_to (count, val);
 }
 \f
-/* Temporarily display the string M at the end of the current
-   minibuffer contents.  This is used to display things like
-   "[No Match]" when the user requests a completion for a prefix
-   that has no possible completions, and other quick, unobtrusive
-   messages.  */
-
-temp_echo_area_glyphs (m)
-     char *m;
-{
-  int osize = ZV;
-  int opoint = PT;
-  Lisp_Object oinhibit;
-  oinhibit = Vinhibit_quit;
-
-  /* Clear out any old echo-area message to make way for our new thing.  */
-  message (0);
-
-  SET_PT (osize);
-  insert_string (m);
-  SET_PT (opoint);
-  Vinhibit_quit = Qt;
-  Fsit_for (make_number (2), Qnil, Qnil);
-  del_range (osize, ZV);
-  SET_PT (opoint);
-  if (!NILP (Vquit_flag))
-    {
-      Vquit_flag = Qnil;
-      Vunread_command_events = Fcons (make_number (quit_char), Qnil);
-    }
-  Vinhibit_quit = oinhibit;
-}
-
 Lisp_Object Fminibuffer_completion_help ();
 Lisp_Object assoc_for_completion ();
 /* A subroutine of Fintern_soft.  */
@@ -1568,13 +1546,22 @@ Return nil if there is no valid completion, else t.")
 
   /* Now find first word-break in the stuff found by completion.
      i gets index in string of where to stop completing.  */
+  {
+    int len, c;
 
-  completion_string = XSTRING (completion)->data;
-
-  for (; i < XSTRING (completion)->size; i++)
-    if (SYNTAX (completion_string[i]) != Sword) break;
-  if (i < XSTRING (completion)->size)
-    i = i + 1;
+    completion_string = XSTRING (completion)->data;
+    for (; i < XSTRING (completion)->size; i += len)
+      {
+       c = STRING_CHAR_AND_LENGTH (completion_string + i,
+                                   XSTRING (completion)->size - i,
+                                   len);
+       if (SYNTAX (c) != Sword)
+         {
+           i += len;
+           break;
+         }
+      }
+  }
 
   /* If got no characters, print help for user.  */
 
@@ -1798,6 +1785,50 @@ DEFUN ("minibuffer-prompt-width", Fminibuffer_prompt_width,
   return width;
 }
 \f
+/* Temporarily display the string M at the end of the current
+   minibuffer contents.  This is used to display things like
+   "[No Match]" when the user requests a completion for a prefix
+   that has no possible completions, and other quick, unobtrusive
+   messages.  */
+
+temp_echo_area_glyphs (m)
+     char *m;
+{
+  int osize = ZV;
+  int opoint = PT;
+  Lisp_Object oinhibit;
+  oinhibit = Vinhibit_quit;
+
+  /* Clear out any old echo-area message to make way for our new thing.  */
+  message (0);
+
+  SET_PT (osize);
+  insert_string (m);
+  SET_PT (opoint);
+  Vinhibit_quit = Qt;
+  Fsit_for (make_number (2), Qnil, Qnil);
+  del_range (osize, ZV);
+  SET_PT (opoint);
+  if (!NILP (Vquit_flag))
+    {
+      Vquit_flag = Qnil;
+      Vunread_command_events = Fcons (make_number (quit_char), Qnil);
+    }
+  Vinhibit_quit = oinhibit;
+}
+
+DEFUN ("minibuffer-message", Fminibuffer_message, Sminibuffer_message,
+  1, 1, 0,
+  "Temporarily display STRING at the end of the minibuffer.\n\
+The text is displayed for two seconds,\n\
+or until the next input event arrives, whichever comes first.")
+  (string)
+     Lisp_Object string;
+{
+  temp_echo_area_glyphs (XSTRING (string)->data);
+  return Qnil;
+}
+\f
 init_minibuf_once ()
 {
   Vminibuffer_list = Qnil;
@@ -1915,7 +1946,8 @@ is added with\n\
   Vminibuffer_history_position = Qnil;
 
   DEFVAR_BOOL ("minibuffer-auto-raise", &minibuffer_auto_raise,
-    "*Non-nil means entering the minibuffer raises the minibuffer's frame.");
+    "*Non-nil means entering the minibuffer raises the minibuffer's frame.\n\
+Some uses of the echo area also raise that frame (since they use it too).");
   minibuffer_auto_raise = 0;
 
   DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list,
@@ -1947,6 +1979,7 @@ is added with\n\
   defsubr (&Sself_insert_and_exit);
   defsubr (&Sexit_minibuffer);
 
+  defsubr (&Sminibuffer_message);
 }
 
 keys_of_minibuf ()