(append_glyph): Refer to it->char_to_display instead of

it->c.
(produce_glyphs): Set the character to print in
it->char_to_display.  Handle
unibyte-display-via-language-environment.
(produce_stretch_glyph): Set the character to print in
it->char_to_display.

diff --git a/src/ChangeLog b/src/ChangeLog
index 6c34fd28ad7f2eba69775fea7a58f6d9ae872d59..61e545da181780817692e2f072cb5d3414dbc92d 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,13 @@
+2006-02-07  Kenichi Handa  <handa@m17n.org>
+
+       * term.c (append_glyph): Refer to it->char_to_display instead of
+       it->c.
+       (produce_glyphs): Set the character to print in
+       it->char_to_display.  Handle
+       unibyte-display-via-language-environment.
+       (produce_stretch_glyph): Set the character to print in
+       it->char_to_display.
+
 2006-02-06  Kenichi Handa  <handa@m17n.org>
 
        * lread.c (openp): Initialized encoded_fn before GCPRO it.

diff --git a/src/term.c b/src/term.c
index 8c6250c522e22d79c92859ef529b877770d12dc5..2b44653b961ec4cf92ac9d8fbf6311cf0f92cda4 100644 (file)
--- a/src/term.c
+++ b/src/term.c
@@ -1634,10 +1634,10 @@ static void produce_stretch_glyph P_ ((struct it *));
 
 
 /* Append glyphs to IT's glyph_row.  Called from produce_glyphs for
-   terminal frames if IT->glyph_row != NULL.  IT->c is the character
-   for which to produce glyphs; IT->face_id contains the character's
-   face.  Padding glyphs are appended if IT->c has a IT->pixel_width >
-   1.  */
+   terminal frames if IT->glyph_row != NULL.  IT->char_to_display is
+   the character for which to produce glyphs; IT->face_id contains the
+   character's face.  Padding glyphs are appended if IT->c has a
+   IT->pixel_width > 1.  */
 
 static void
 append_glyph (it)
@@ -1657,7 +1657,7 @@ append_glyph (it)
     {
       glyph->type = CHAR_GLYPH;
       glyph->pixel_width = 1;
-      glyph->u.ch = it->c;
+      glyph->u.ch = it->char_to_display;
       glyph->face_id = it->face_id;
       glyph->padding_p = i > 0;
       glyph->charpos = CHARPOS (it->position);
@@ -1708,6 +1708,9 @@ produce_glyphs (it)
   xassert (it->what == IT_CHARACTER
           || it->what == IT_COMPOSITION);
 
+  /* Maybe translate single-byte characters to multibyte.  */
+  it->char_to_display = it->c;
+
   if (it->c >= 040 && it->c < 0177)
     {
       it->pixel_width = it->nglyphs = 1;
@@ -1737,13 +1740,11 @@ produce_glyphs (it)
        {
          int n = nspaces;
 
-         it->c = ' ';
+         it->char_to_display = ' ';
          it->pixel_width = it->len = 1;
 
          while (n--)
            append_glyph (it);
-
-         it->c = '\t';
        }
 
       it->pixel_width = nspaces;
@@ -1751,14 +1752,30 @@ produce_glyphs (it)
     }
   else if (SINGLE_BYTE_CHAR_P (it->c))
     {
-      /* Coming here means that it->c is from display table, thus we
-        must send the code as is to the terminal.  Although there's
-        no way to know how many columns it occupies on a screen, it
-        is a good assumption that a single byte code has 1-column
-        width.  */
-      it->pixel_width = it->nglyphs = 1;
-      if (it->glyph_row)
-       append_glyph (it);
+      if (unibyte_display_via_language_environment
+         && (it->c >= 0240
+             || !NILP (Vnonascii_translation_table)))
+       {
+         int charset;
+
+         it->char_to_display = unibyte_char_to_multibyte (it->c);
+         charset = CHAR_CHARSET (it->char_to_display);
+         it->pixel_width = CHARSET_WIDTH (charset);
+         it->nglyphs = it->pixel_width;
+         if (it->glyph_row)
+           append_glyph (it);
+       }
+      else
+       {
+         /* Coming here means that it->c is from display table, thus we
+            must send the code as is to the terminal.  Although there's
+            no way to know how many columns it occupies on a screen, it
+            is a good assumption that a single byte code has 1-column
+            width.  */
+         it->pixel_width = it->nglyphs = 1;
+         if (it->glyph_row)
+           append_glyph (it);
+       }
     }
   else
     {
@@ -1843,17 +1860,15 @@ produce_stretch_glyph (it)
       Lisp_Object o_object = it->object;
       Lisp_Object object = it->stack[it->sp - 1].string;
       int n = width;
-      int c = it->c;
 
       if (!STRINGP (object))
        object = it->w->buffer;
       it->object = object;
-      it->c = ' ';
+      it->char_to_display = ' ';
       it->pixel_width = it->len = 1;
       while (n--)
        append_glyph (it);
       it->object = o_object;
-      it->c = c;
     }
   it->pixel_width = width;
   it->nglyphs = width;