161 lines
4.8 KiB
C
161 lines
4.8 KiB
C
/*-
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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#ifndef lint
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static char sccsid[] = "@(#)ex_map.c 8.19 (Berkeley) 8/17/94";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/time.h>
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#include <bitstring.h>
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#include <ctype.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include "compat.h"
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#include <curses.h>
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#include <db.h>
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#include <regex.h>
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#include "vi.h"
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#include "excmd.h"
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/*
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* ex_map -- :map[!] [input] [replacement]
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* Map a key/string or display mapped keys.
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*
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* Historical note:
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* Historic vi maps were fairly bizarre, and likely to differ in
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* very subtle and strange ways from this implementation. Two
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* things worth noting are that vi would often hang or drop core
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* if the map was strange enough (ex: map X "xy$@x^V), or, simply
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* not work. One trick worth remembering is that if you put a
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* mark at the start of the map, e.g. map X mx"xy ...), or if you
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* put the map in a .exrc file, things would often work much better.
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* No clue why.
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*/
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int
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ex_map(sp, ep, cmdp)
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SCR *sp;
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EXF *ep;
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EXCMDARG *cmdp;
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{
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enum seqtype stype;
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CHAR_T *input, *p;
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stype = F_ISSET(cmdp, E_FORCE) ? SEQ_INPUT : SEQ_COMMAND;
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switch (cmdp->argc) {
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case 0:
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if (seq_dump(sp, stype, 1) == 0)
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msgq(sp, M_INFO, "No %s map entries",
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stype == SEQ_INPUT ? "input" : "command");
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return (0);
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case 2:
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input = cmdp->argv[0]->bp;
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break;
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default:
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abort();
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}
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/*
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* If the mapped string is #[0-9]* (and wasn't quoted) then store
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* the function key mapping, and call the screen specific routine.
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* Note, if the screen specific routine is able to create the
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* mapping, the SEQ_FUNCMAP type stays around, maybe the next screen
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* type can get it right.
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*/
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if (input[0] == '#') {
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for (p = input + 1; isdigit(*p); ++p);
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if (p[0] != '\0')
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goto nofunc;
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if (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len,
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cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, SEQ_FUNCMAP))
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return (1);
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return (sp->s_fmap(sp, stype, input, cmdp->argv[0]->len,
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cmdp->argv[1]->bp, cmdp->argv[1]->len));
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}
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/* Some single keys may not be remapped in command mode. */
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nofunc: if (stype == SEQ_COMMAND && input[1] == '\0')
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switch (KEY_VAL(sp, input[0])) {
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case K_COLON:
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case K_ESCAPE:
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case K_NL:
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msgq(sp, M_ERR, "The %s character may not be remapped",
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KEY_NAME(sp, input[0]));
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return (1);
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}
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return (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len,
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cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, SEQ_USERDEF));
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}
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/*
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* ex_unmap -- (:unmap[!] key)
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* Unmap a key.
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*/
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int
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ex_unmap(sp, ep, cmdp)
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SCR *sp;
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EXF *ep;
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EXCMDARG *cmdp;
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{
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if (seq_delete(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len,
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F_ISSET(cmdp, E_FORCE) ? SEQ_INPUT : SEQ_COMMAND)) {
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msgq(sp, M_INFO, "\"%s\" isn't mapped", cmdp->argv[0]->bp);
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return (1);
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}
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return (0);
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}
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/*
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* map_save --
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* Save the mapped sequences to a file.
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*/
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int
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map_save(sp, fp)
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SCR *sp;
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FILE *fp;
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{
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if (seq_save(sp, fp, "map ", SEQ_COMMAND))
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return (1);
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return (seq_save(sp, fp, "map! ", SEQ_INPUT));
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}
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