(coded-charset-entity-reference-alist): Add setting for

[chise/xemacs-chise.git.1] / src / indent.c

diff --git a/src/indent.c b/src/indent.c
index 7ace51f..9ecf75b 100644 (file)
--- a/src/indent.c
+++ b/src/indent.c
@@ -169,7 +169,7 @@ column_at_point (struct buffer *buf, Bufpos init_pos, int cur_col)
                     + displayed_glyphs->end_columns));
 #else /* XEmacs */
 #ifdef MULE
-         col += XCHARSET_COLUMNS (CHAR_CHARSET (c));
+         col += CHAR_COLUMNS (c);
 #else
          col ++;
 #endif /* MULE */
@@ -195,6 +195,53 @@ column_at_point (struct buffer *buf, Bufpos init_pos, int cur_col)
 }
 
 int
+string_column_at_point (Lisp_String* s, Bufpos init_pos, int tab_width)
+{
+  int col;
+  int tab_seen;
+  int post_tab;
+  Bufpos pos = init_pos;
+  Emchar c;
+
+  if (tab_width <= 0 || tab_width > 1000) tab_width = 8;
+  col = tab_seen = post_tab = 0;
+
+  while (1)
+    {
+      if (pos <= 0)
+       break;
+
+      pos--;
+      c = string_char (s, pos);
+      if (c == '\t')
+       {
+         if (tab_seen)
+           col = ((col + tab_width) / tab_width) * tab_width;
+
+         post_tab += col;
+         col = 0;
+         tab_seen = 1;
+       }
+      else if (c == '\n')
+       break;
+      else
+#ifdef MULE
+         col += CHAR_COLUMNS (c);
+#else
+         col ++;
+#endif /* MULE */
+    }
+
+  if (tab_seen)
+    {
+      col = ((col + tab_width) / tab_width) * tab_width;
+      col += post_tab;
+    }
+
+  return col;
+}
+
+int
 current_column (struct buffer *buf)
 {
   if (buf == last_known_column_buffer
@@ -225,11 +272,11 @@ If BUFFER is nil, the current buffer is assumed.
 \f
 DEFUN ("indent-to", Findent_to, 1, 3, "NIndent to column: ", /*
 Indent from point with tabs and spaces until COLUMN is reached.
-Optional second argument MIN says always do at least MIN spaces
- even if that goes past COLUMN; by default, MIN is zero.
+Optional second argument MINIMUM says always do at least MINIMUM spaces
+ even if that goes past COLUMN; by default, MINIMUM is zero.
 If BUFFER is nil, the current buffer is assumed.
 */
-       (col, minimum, buffer))
+       (column, minimum, buffer))
 {
   /* This function can GC */
   int mincol;
@@ -238,7 +285,7 @@ If BUFFER is nil, the current buffer is assumed.
   int tab_width = XINT (buf->tab_width);
   Bufpos opoint = 0;
 
-  CHECK_INT (col);
+  CHECK_INT (column);
   if (NILP (minimum))
     minimum = Qzero;
   else
@@ -248,7 +295,7 @@ If BUFFER is nil, the current buffer is assumed.
 
   fromcol = current_column (buf);
   mincol = fromcol + XINT (minimum);
-  if (mincol < XINT (col)) mincol = XINT (col);
+  if (mincol < XINT (column)) mincol = XINT (column);
 
   if (fromcol == mincol)
     return make_int (mincol);
@@ -409,7 +456,7 @@ Returns the actual column that it moved to.
                     + displayed_glyphs->end_columns));
 #else /* XEmacs */
 #ifdef MULE
-         col += XCHARSET_COLUMNS (CHAR_CHARSET (c));
+         col += CHAR_COLUMNS (c);
 #else
          col ++;
 #endif /* MULE */