mailing-list for TeXmacs Users

[Lionel Elie Mamane <address@hidden>]

On Mon, Nov 29, 2004 at 09:16:47PM +0100, Norbert Nemec wrote:

> I didn't use TeXmacs over several weeks, no I opened it again and
> found to my surprise, that the Alt-Key is suddenly mapped to the
> M-modifier. (under Linux/Debian)

The way X does modifiers has changed. This broke at least Emacs,
TeXmacs and sawfish (I think also the KDE wm); the X guys say that
these programs are broken. A "fix" for Emacs is now in the Debian
package.

See:
 http://bugs.debian.org/271542
 http://bugs.debian.org/255286
 http://bugs.debian.org/263073
 http://bugs.debian.org/256706

The emacs fix:

--- emacs-21.3+1.orig/src/xterm        2004-09-14 19:06:11.000000000 +0200
+++ emacs-21.3+1/src/xterm.c   2004-09-16 22:23:24.000000000 +0200
@@ -6380,8 +6380,11 @@
      Alt keysyms are on.  */
   {
     int row, col;     /* The row and column in the modifier table.  */
+    int found_alt_or_meta;
 
     for (row = 3; row < 8; row++)
+    {
+      found_alt_or_meta = 0;
       for (col = 0; col < mods->max_keypermod; col++)
       {
         KeyCode code
@@ -6403,33 +6406,44 @@
                 {
                 case XK_Meta_L:
                 case XK_Meta_R:
+                  found_alt_or_meta = 1;
                   dpyinfo->meta_mod_mask |= (1 << row);
                   break;
 
                 case XK_Alt_L:
                 case XK_Alt_R:
+                  found_alt_or_meta = 1;
                   dpyinfo->alt_mod_mask |= (1 << row);
                   break;
 
                 case XK_Hyper_L:
                 case XK_Hyper_R:
-                  dpyinfo->hyper_mod_mask |= (1 << row);
+                  if (!found_alt_or_meta)
+                    dpyinfo->hyper_mod_mask |= (1 << row);
+                  code_col = syms_per_code;
+                  col = mods->max_keypermod;
                   break;
 
                 case XK_Super_L:
                 case XK_Super_R:
-                  dpyinfo->super_mod_mask |= (1 << row);
+                  if (!found_alt_or_meta)
+                    dpyinfo->super_mod_mask |= (1 << row);
+                  code_col = syms_per_code;
+                  col = mods->max_keypermod;
                   break;
 
                 case XK_Shift_Lock:
                   /* Ignore this if it's not on the lock modifier.  */
-                  if ((1 << row) == LockMask)
+                  if (!found_alt_or_meta && ((1 << row) == LockMask))
                     dpyinfo->shift_lock_mask = LockMask;
+                  code_col = syms_per_code;
+                  col = mods->max_keypermod;
                   break;
                 }
             }
         }
       }
+    }
   }
 
   /* If we couldn't find any meta keys, accept any alt keys as meta keys.  */


-- 
Lionel