X-Git-Url: http://git.chise.org/gitweb/?p=chise%2Fxemacs-chise.git.1;a=blobdiff_plain;f=src%2Fbuffer.c;h=e7f8a4cf8ef85e1c75593afc2a2a8cc12791edf8;hp=bd44a47fc40487a6f72cf828d6b7de1921c62d4d;hb=7b241b273a632ab80d7c620b5add28d5f11b0fd3;hpb=79d2db7d65205bc85d471590726d0cf3af5598e0;ds=sidebyside

diff --git a/src/buffer.c b/src/buffer.c
index bd44a47..e7f8a4c 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -2,6 +2,7 @@
    Copyright (C) 1985-1989, 1992-1995 Free Software Foundation, Inc.
    Copyright (C) 1995 Sun Microsystems, Inc.
    Copyright (C) 1995, 1996 Ben Wing.
+   Copyright (C) 1999,2000,2001 MORIOKA Tomohiko
 
 This file is part of XEmacs.
 
@@ -29,6 +30,7 @@ Boston, MA 02111-1307, USA.  */
         list per frame.)
    Mly: a few changes for buffer-local vars, 19.8 or 19.9.
    Ben Wing: some changes and cleanups for Mule, 19.12.
+   MORIOKA Tomohiko: some changes for XEmacs UTF-2000.
  */
 
 /* This file contains functions that work with buffer objects.
@@ -522,7 +524,7 @@ delete_from_buffer_alist (Lisp_Object buf)
   Lisp_Object cons = Frassq (buf, Vbuffer_alist);
   Lisp_Object frmcons, devcons, concons;
   if (NILP (cons))
-    return; /* abort() ? */
+    return; /* ABORT() ? */
   Vbuffer_alist = delq_no_quit (cons, Vbuffer_alist);
 
   FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
@@ -1334,38 +1336,60 @@ buffer.  See `other-buffer' for more information.
 {
   REGISTER Lisp_Object lynk, prev;
   struct frame *f = selected_frame ();
+  int buffer_found = 0;
 
+  CHECK_BUFFER (buffer);
+  if (!BUFFER_LIVE_P (XBUFFER (buffer)))
+    return Qnil;
   prev = Qnil;
   for (lynk = Vbuffer_alist; CONSP (lynk); lynk = XCDR (lynk))
     {
       if (EQ (XCDR (XCAR (lynk)), buffer))
-	break;
+	{
+	  buffer_found = 1;
+	  break;
+	}
       prev = lynk;
     }
-  /* Effectively do Vbuffer_alist = delq_no_quit (lynk, Vbuffer_alist) */
-  if (NILP (prev))
-    Vbuffer_alist = XCDR (Vbuffer_alist);
+  if (buffer_found)
+    {
+      /* Effectively do Vbuffer_alist = delq_no_quit (lynk, Vbuffer_alist) */
+      if (NILP (prev))
+	Vbuffer_alist = XCDR (Vbuffer_alist);
+      else
+	XCDR (prev) = XCDR (XCDR (prev));
+      XCDR (lynk) = Vbuffer_alist;
+      Vbuffer_alist = lynk;
+    }
   else
-    XCDR (prev) = XCDR (XCDR (prev));
-  XCDR (lynk) = Vbuffer_alist;
-  Vbuffer_alist = lynk;
+    Vbuffer_alist = Fcons (Fcons (Fbuffer_name(buffer), buffer), Vbuffer_alist);
 
   /* That was the global one.  Now do the same thing for the
      per-frame buffer-alist. */
+  buffer_found = 0;
   prev = Qnil;
   for (lynk = f->buffer_alist; CONSP (lynk); lynk = XCDR (lynk))
     {
       if (EQ (XCDR (XCAR (lynk)), buffer))
-	break;
+	{
+	  buffer_found = 1;
+	  break;
+	}
       prev = lynk;
     }
-  /* Effectively do f->buffer_alist = delq_no_quit (lynk, f->buffer_alist) */
-  if (NILP (prev))
-    f->buffer_alist = XCDR (f->buffer_alist);
+  if (buffer_found)
+    {
+      /* Effectively do f->buffer_alist = delq_no_quit (lynk, f->buffer_alist) */
+      if (NILP (prev))
+	f->buffer_alist = XCDR (f->buffer_alist);
+      else
+	XCDR (prev) = XCDR (XCDR (prev));
+      XCDR (lynk) = f->buffer_alist;
+      f->buffer_alist = lynk;
+    }
   else
-    XCDR (prev) = XCDR (XCDR (prev));
-  XCDR (lynk) = f->buffer_alist;
-  f->buffer_alist = lynk;
+    f->buffer_alist = Fcons (Fcons (Fbuffer_name(buffer), buffer),
+			     f->buffer_alist);
 
   return Qnil;
 }
@@ -1861,11 +1885,17 @@ dfc_convert_to_external_format (dfc_conversion_type source_type,
 	const Bufbyte *end;
 	for (end = ptr + len; ptr < end;)
 	  {
+#ifdef UTF2000
+	    Bufbyte c =
+	      (*ptr < 0xc0) ? *ptr :
+	      ((*ptr & 0x1f) << 6) | (*(ptr+1) & 0x3f);
+#else
 	    Bufbyte c =
 	      (BYTE_ASCII_P (*ptr))		   ? *ptr :
 	      (*ptr == LEADING_BYTE_CONTROL_1)	   ? (*(ptr+1) - 0x20) :
 	      (*ptr == LEADING_BYTE_LATIN_ISO8859_1) ? (*(ptr+1)) :
 	      '~';
+#endif
 
 	    Dynarr_add (conversion_out_dynarr, (Extbyte) c);
 	    INC_CHARPTR (ptr);
@@ -2001,6 +2031,15 @@ dfc_convert_to_internal_format (dfc_conversion_type source_type,
         {
           Bufbyte c = *ptr;
 
+#ifdef UTF2000
+	  if (BYTE_ASCII_P (c))
+	    Dynarr_add (conversion_in_dynarr, c);
+	  else
+	    {
+	      Dynarr_add (conversion_in_dynarr, (c >> 6) | 0xC0);
+	      Dynarr_add (conversion_in_dynarr, (c & 0x3F) | 0x80);
+	    }
+#else
 	  if (BYTE_ASCII_P (c))
 	    Dynarr_add (conversion_in_dynarr, c);
 	  else if (BYTE_C1_P (c))
@@ -2013,6 +2052,7 @@ dfc_convert_to_internal_format (dfc_conversion_type source_type,
 	      Dynarr_add (conversion_in_dynarr, LEADING_BYTE_LATIN_ISO8859_1);
 	      Dynarr_add (conversion_in_dynarr, c);
 	    }
+#endif
         }
 #else
       Dynarr_add_many (conversion_in_dynarr, source->data.ptr, source->data.len);
@@ -2418,8 +2458,10 @@ common_init_complex_vars_of_buffer (void)
   defs->category_table = Vstandard_category_table;
 #endif /* MULE */
   defs->syntax_table = Vstandard_syntax_table;
+#ifndef UTF2000
   defs->mirror_syntax_table =
     XCHAR_TABLE (Vstandard_syntax_table)->mirror_table;
+#endif
   defs->modeline_format = build_string ("%-");  /* reset in loaddefs.el */
   defs->case_fold_search = Qt;
   defs->selective_display_ellipses = Qt;
@@ -2799,6 +2841,8 @@ It may not be a list of functions.
   DEFVAR_BUFFER_LOCAL ("buffer-file-name", filename /*
 Name of file visited in current buffer, or nil if not visiting a file.
 Each buffer has its own value of this variable.
+Code that changes this variable must maintain the invariant
+`(equal buffer-file-truename (file-truename buffer-file-name))'.
 */ );
 
 #if 0 /* FSFmacs */
@@ -2811,12 +2855,11 @@ Each buffer has its own value of this variable.
 #endif /* FSFmacs */
 
   DEFVAR_BUFFER_LOCAL ("buffer-file-truename", file_truename /*
-The real name of the file visited in the current buffer,
-or nil if not visiting a file.  This is the result of passing
-buffer-file-name to the `file-truename' function.  Every buffer has
-its own value of this variable.  This variable is automatically
-maintained by the functions that change the file name associated
-with a buffer.
+The real name of the file visited in the current buffer, or nil if not
+visiting a file.  This is the result of passing `buffer-file-name' to the
+`file-truename' function.  Every buffer has its own value of this variable.
+Code that changes the file name associated with a buffer maintains the
+invariant `(equal buffer-file-truename (file-truename buffer-file-name))'.
 */ );
 
   DEFVAR_BUFFER_LOCAL ("buffer-auto-save-file-name", auto_save_file_name /*
@@ -3029,7 +3072,7 @@ handled:
   if ((XINT (buffer_local_flags.slot) != -2 &&			\
        XINT (buffer_local_flags.slot) != -3)			\
       != !(NILP (XBUFFER (Vbuffer_local_symbols)->slot)))	\
-  abort ()
+  ABORT ()
 #include "bufslots.h"
 #undef MARKED_SLOT