537 lines
12 KiB
C
537 lines
12 KiB
C
/* $Header: /p/tcsh/cvsroot/tcsh/tc.bind.c,v 3.44 2006/03/02 18:46:44 christos Exp $ */
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/*
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* tc.bind.c: Key binding functions
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*/
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/*-
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* Copyright (c) 1980, 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "sh.h"
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RCSID("$tcsh: tc.bind.c,v 3.44 2006/03/02 18:46:44 christos Exp $")
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#include "ed.h"
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#include "ed.defns.h"
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static void printkey (const KEYCMD *, CStr *);
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static KEYCMD parsecmd (Char *);
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static void bad_spec (const Char *);
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static CStr *parsestring (const Char *, CStr *);
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static CStr *parsebind (const Char *, CStr *);
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static void print_all_keys (void);
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static void printkeys (KEYCMD *, int, int);
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static void bindkey_usage (void);
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static void list_functions (void);
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extern int MapsAreInited;
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/*ARGSUSED*/
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void
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dobindkey(Char **v, struct command *c)
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{
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KEYCMD *map;
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int ntype, no, removeb, key, bindk;
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Char *par;
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Char p;
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KEYCMD cmd;
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CStr in;
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CStr out;
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uChar ch;
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USE(c);
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if (!MapsAreInited)
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ed_InitMaps();
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map = CcKeyMap;
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ntype = XK_CMD;
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key = removeb = bindk = 0;
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for (no = 1, par = v[no];
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par != NULL && (*par++ & CHAR) == '-'; no++, par = v[no]) {
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if ((p = (*par & CHAR)) == '-') {
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no++;
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break;
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}
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else
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switch (p) {
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case 'b':
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bindk = 1;
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break;
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case 'k':
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key = 1;
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break;
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case 'a':
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map = CcAltMap;
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break;
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case 's':
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ntype = XK_STR;
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break;
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case 'c':
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ntype = XK_EXE;
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break;
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case 'r':
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removeb = 1;
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break;
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case 'v':
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ed_InitVIMaps();
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return;
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case 'e':
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ed_InitEmacsMaps();
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return;
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case 'd':
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#ifdef VIDEFAULT
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ed_InitVIMaps();
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#else /* EMACSDEFAULT */
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ed_InitEmacsMaps();
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#endif /* VIDEFAULT */
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return;
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case 'l':
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list_functions();
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return;
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default:
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bindkey_usage();
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return;
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}
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}
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if (!v[no]) {
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print_all_keys();
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return;
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}
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if (key) {
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if (!IsArrowKey(v[no]))
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xprintf(CGETS(20, 1, "Invalid key name `%S'\n"), v[no]);
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in.buf = Strsave(v[no++]);
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in.len = Strlen(in.buf);
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}
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else {
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if (bindk) {
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if (parsebind(v[no++], &in) == NULL)
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return;
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}
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else {
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if (parsestring(v[no++], &in) == NULL)
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return;
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}
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}
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cleanup_push(in.buf, xfree);
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#ifndef WINNT_NATIVE
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if (in.buf[0] > 0xFF) {
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bad_spec(in.buf);
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cleanup_until(in.buf);
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return;
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}
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#endif
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ch = (uChar) in.buf[0];
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if (removeb) {
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if (key)
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(void) ClearArrowKeys(&in);
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else if (in.len > 1) {
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(void) DeleteXkey(&in);
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}
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else if (map[ch] == F_XKEY) {
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(void) DeleteXkey(&in);
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map[ch] = F_UNASSIGNED;
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}
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else {
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map[ch] = F_UNASSIGNED;
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}
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cleanup_until(in.buf);
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return;
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}
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if (!v[no]) {
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if (key)
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PrintArrowKeys(&in);
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else
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printkey(map, &in);
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cleanup_until(in.buf);
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return;
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}
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if (v[no + 1]) {
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bindkey_usage();
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cleanup_until(in.buf);
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return;
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}
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switch (ntype) {
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case XK_STR:
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case XK_EXE:
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if (parsestring(v[no], &out) == NULL) {
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cleanup_until(in.buf);
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return;
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}
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cleanup_push(out.buf, xfree);
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if (key) {
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if (SetArrowKeys(&in, XmapStr(&out), ntype) == -1)
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xprintf(CGETS(20, 2, "Bad key name: %S\n"), in.buf);
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else
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cleanup_ignore(out.buf);
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}
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else
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AddXkey(&in, XmapStr(&out), ntype);
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map[ch] = F_XKEY;
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break;
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case XK_CMD:
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if ((cmd = parsecmd(v[no])) == 0) {
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cleanup_until(in.buf);
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return;
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}
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if (key)
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(void) SetArrowKeys(&in, XmapCmd((int) cmd), ntype);
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else {
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if (in.len > 1) {
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AddXkey(&in, XmapCmd((int) cmd), ntype);
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map[ch] = F_XKEY;
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}
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else {
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ClearXkey(map, &in);
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map[ch] = cmd;
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}
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}
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break;
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default:
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abort();
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break;
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}
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cleanup_until(in.buf);
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if (key)
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BindArrowKeys();
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}
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static void
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printkey(const KEYCMD *map, CStr *in)
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{
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struct KeyFuncs *fp;
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if (in->len < 2) {
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unsigned char *unparsed;
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unparsed = unparsestring(in, STRQQ);
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cleanup_push(unparsed, xfree);
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for (fp = FuncNames; fp->name; fp++) {
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if (fp->func == map[(uChar) *(in->buf)]) {
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xprintf("%s\t->\t%s\n", unparsed, fp->name);
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}
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}
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cleanup_until(unparsed);
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}
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else
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PrintXkey(in);
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}
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static KEYCMD
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parsecmd(Char *str)
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{
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struct KeyFuncs *fp;
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for (fp = FuncNames; fp->name; fp++) {
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if (strcmp(short2str(str), fp->name) == 0) {
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return (KEYCMD) fp->func;
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}
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}
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xprintf(CGETS(20, 3, "Bad command name: %S\n"), str);
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return 0;
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}
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static void
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bad_spec(const Char *str)
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{
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xprintf(CGETS(20, 4, "Bad key spec %S\n"), str);
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}
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static CStr *
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parsebind(const Char *s, CStr *str)
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{
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struct Strbuf b = Strbuf_INIT;
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cleanup_push(&b, Strbuf_cleanup);
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if (Iscntrl(*s)) {
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Strbuf_append1(&b, *s);
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goto end;
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}
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switch (*s) {
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case '^':
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s++;
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#ifdef IS_ASCII
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Strbuf_append1(&b, (*s == '?') ? '\177' : ((*s & CHAR) & 0237));
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#else
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Strbuf_append1(&b, (*s == '?') ? CTL_ESC('\177')
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: _toebcdic[_toascii[*s & CHAR] & 0237]);
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#endif
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break;
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case 'F':
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case 'M':
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case 'X':
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case 'C':
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#ifdef WINNT_NATIVE
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case 'N':
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#endif /* WINNT_NATIVE */
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if (s[1] != '-' || s[2] == '\0')
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goto bad_spec;
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s += 2;
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switch (s[-2]) {
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case 'F': case 'f': /* Turn into ^[str */
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Strbuf_append1(&b, CTL_ESC('\033'));
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Strbuf_append(&b, s);
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break;
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case 'C': case 'c': /* Turn into ^c */
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#ifdef IS_ASCII
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Strbuf_append1(&b, (*s == '?') ? '\177' : ((*s & CHAR) & 0237));
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#else
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Strbuf_append1(&b, (*s == '?') ? CTL_ESC('\177')
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: _toebcdic[_toascii[*s & CHAR] & 0237]);
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#endif
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break;
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case 'X' : case 'x': /* Turn into ^Xc */
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#ifdef IS_ASCII
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Strbuf_append1(&b, 'X' & 0237);
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#else
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Strbuf_append1(&b, _toebcdic[_toascii['X'] & 0237]);
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#endif
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Strbuf_append1(&b, *s);
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break;
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case 'M' : case 'm': /* Turn into 0x80|c */
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if (!NoNLSRebind) {
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Strbuf_append1(&b, CTL_ESC('\033'));
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Strbuf_append1(&b, *s);
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} else {
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#ifdef IS_ASCII
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Strbuf_append1(&b, *s | 0x80);
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#else
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Strbuf_append1(&b, _toebcdic[_toascii[*s] | 0x80]);
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#endif
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}
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break;
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#ifdef WINNT_NATIVE
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case 'N' : case 'n': /* NT */
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{
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Char bnt;
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bnt = nt_translate_bindkey(s);
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if (bnt != 0)
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Strbuf_append1(&b, bnt);
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else
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bad_spec(s);
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}
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break;
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#endif /* WINNT_NATIVE */
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default:
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abort();
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}
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break;
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default:
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goto bad_spec;
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}
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end:
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cleanup_ignore(&b);
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cleanup_until(&b);
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Strbuf_terminate(&b);
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str->buf = xrealloc(b.s, (b.len + 1) * sizeof (*str->buf));
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str->len = b.len;
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return str;
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bad_spec:
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bad_spec(s);
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cleanup_until(&b);
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return NULL;
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}
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static CStr *
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parsestring(const Char *str, CStr *buf)
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{
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struct Strbuf b = Strbuf_INIT;
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const Char *p;
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eChar es;
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if (*str == 0) {
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xprintf(CGETS(20, 5, "Null string specification\n"));
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return NULL;
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}
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cleanup_push(&b, Strbuf_cleanup);
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for (p = str; *p != 0; p++) {
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if ((*p & CHAR) == '\\' || (*p & CHAR) == '^') {
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if ((es = parseescape(&p)) == CHAR_ERR) {
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cleanup_until(&b);
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return 0;
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} else
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Strbuf_append1(&b, es);
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}
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else
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Strbuf_append1(&b, *p & CHAR);
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}
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cleanup_ignore(&b);
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cleanup_until(&b);
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Strbuf_terminate(&b);
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buf->buf = xrealloc(b.s, (b.len + 1) * sizeof (*buf->buf));
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buf->len = b.len;
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return buf;
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}
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static void
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print_all_keys(void)
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{
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int prev, i;
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CStr nilstr;
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nilstr.buf = NULL;
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nilstr.len = 0;
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xprintf(CGETS(20, 6, "Standard key bindings\n"));
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prev = 0;
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for (i = 0; i < 256; i++) {
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if (CcKeyMap[prev] == CcKeyMap[i])
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continue;
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printkeys(CcKeyMap, prev, i - 1);
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prev = i;
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}
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printkeys(CcKeyMap, prev, i - 1);
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xprintf(CGETS(20, 7, "Alternative key bindings\n"));
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prev = 0;
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for (i = 0; i < 256; i++) {
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if (CcAltMap[prev] == CcAltMap[i])
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continue;
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printkeys(CcAltMap, prev, i - 1);
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prev = i;
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}
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printkeys(CcAltMap, prev, i - 1);
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xprintf(CGETS(20, 8, "Multi-character bindings\n"));
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PrintXkey(NULL); /* print all Xkey bindings */
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xprintf(CGETS(20, 9, "Arrow key bindings\n"));
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PrintArrowKeys(&nilstr);
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}
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static void
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printkeys(KEYCMD *map, int first, int last)
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{
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struct KeyFuncs *fp;
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Char firstbuf[2], lastbuf[2];
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CStr fb, lb;
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unsigned char *unparsed;
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fb.buf = firstbuf;
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lb.buf = lastbuf;
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firstbuf[0] = (Char) first;
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firstbuf[1] = 0;
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lastbuf[0] = (Char) last;
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lastbuf[1] = 0;
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fb.len = 1;
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lb.len = 1;
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unparsed = unparsestring(&fb, STRQQ);
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cleanup_push(unparsed, xfree);
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if (map[first] == F_UNASSIGNED) {
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if (first == last)
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xprintf(CGETS(20, 10, "%-15s-> is undefined\n"), unparsed);
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cleanup_until(unparsed);
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return;
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}
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for (fp = FuncNames; fp->name; fp++) {
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if (fp->func == map[first]) {
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if (first == last)
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xprintf("%-15s-> %s\n", unparsed, fp->name);
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else {
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unsigned char *p;
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p = unparsestring(&lb, STRQQ);
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cleanup_push(p, xfree);
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xprintf("%-4s to %-7s-> %s\n", unparsed, p, fp->name);
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}
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cleanup_until(unparsed);
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return;
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}
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}
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xprintf(CGETS(20, 11, "BUG!!! %s isn't bound to anything.\n"), unparsed);
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if (map == CcKeyMap)
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xprintf("CcKeyMap[%d] == %d\n", first, CcKeyMap[first]);
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else
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xprintf("CcAltMap[%d] == %d\n", first, CcAltMap[first]);
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cleanup_until(unparsed);
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}
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static void
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bindkey_usage(void)
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{
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xprintf(CGETS(20, 12,
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"Usage: bindkey [options] [--] [KEY [COMMAND]]\n"));
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xprintf(CGETS(20, 13,
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" -a list or bind KEY in alternative key map\n"));
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xprintf(CGETS(20, 14,
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" -b interpret KEY as a C-, M-, F- or X- key name\n"));
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xprintf(CGETS(20, 15,
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" -s interpret COMMAND as a literal string to be output\n"));
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xprintf(CGETS(20, 16,
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" -c interpret COMMAND as a builtin or external command\n"));
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xprintf(CGETS(20, 17,
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" -v bind all keys to vi bindings\n"));
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xprintf(CGETS(20, 18,
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" -e bind all keys to emacs bindings\n"));
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xprintf(CGETS(20, 19,
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" -d bind all keys to default editor's bindings\n"));
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xprintf(CGETS(20, 20,
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" -l list editor commands with descriptions\n"));
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xprintf(CGETS(20, 21,
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" -r remove KEY's binding\n"));
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xprintf(CGETS(20, 22,
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" -k interpret KEY as a symbolic arrow-key name\n"));
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xprintf(CGETS(20, 23,
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" -- force a break from option processing\n"));
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xprintf(CGETS(20, 24,
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" -u (or any invalid option) this message\n"));
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xprintf("\n");
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xprintf(CGETS(20, 25,
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"Without KEY or COMMAND, prints all bindings\n"));
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xprintf(CGETS(20, 26,
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"Without COMMAND, prints the binding for KEY.\n"));
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}
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static void
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list_functions(void)
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{
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struct KeyFuncs *fp;
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for (fp = FuncNames; fp->name; fp++) {
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xprintf("%s\n %s\n", fp->name, fp->desc);
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}
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}
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