Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!rochester!pt.cs.cmu.edu!pt!clamen
From: clamen@CLAMEN.AVALON.CS.CMU.EDU (Stewart Clamen)
Newsgroups: gnu.emacs.bug
Subject: Rebinding Arrow Keys
Message-ID: <CLAMEN.89Apr25184123@CLAMEN.AVALON.CS.CMU.EDU>
Date: 25 Apr 89 22:41:23 GMT
Distribution: gnu
Organization: Carnegie Mellon University
Lines: 55


One of my users has rebound ^F, but wants the rightarrow key to still
map to 'forward-char.  Problem is, the GNU Emacs/X interface
translates the arrow keys DIRECTLY into ^F/^B/^P/^N.  Here's the code,
from internal_socket_read() in src/x11term.c .

-----
      if (IsFunctionKey(keysym) ||
	  IsMiscFunctionKey(keysym)) {
	strcpy(mapping_buf,"[");
	strcat(mapping_buf,stringFuncVal(keysym));
#ifdef sun
	strcat(mapping_buf,"z");
#else
	strcat(mapping_buf,"~");
#endif /* sun */
	nbytes = strlen(mapping_buf);
      }
      else {
	switch (keysym) {
	case XK_Left:
	  strcpy(mapping_buf,"\002");
	  nbytes = 1;
	  break;
	case XK_Right:
	  strcpy(mapping_buf,"\006");
	  nbytes = 1;
	  break;
	case XK_Up:
	  strcpy(mapping_buf,"\020");
	  nbytes = 1;
	  break;
	case XK_Down:
	  strcpy(mapping_buf,"\016");
	  nbytes = 1;
	  break;
	}
      }

-----

A similar thing is done in the X10 support (src/xterm.c).  I realize
that an easy fix would be to remove the test and map all non-standard
keys to the funny escape sequences.  Any opinions on whether this is a
good thing to do?
--
------------------------------------------------------------------------------
Stewart M. Clamen
School of Computer Science, Carnegie Mellon University
Pittsburgh, PA 15213-3890

INTERNET: clamen@CS.CMU.EDU
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