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/* $OpenBSD: ex_map.c,v 1.9 2016/05/27 09:18:12 martijn Exp $ */
/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/queue.h>
#include <bitstring.h>
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../common/common.h"
/*
* ex_map -- :map[!] [input] [replacement]
* Map a key/string or display mapped keys.
*
* Historical note:
* Historic vi maps were fairly bizarre, and likely to differ in
* very subtle and strange ways from this implementation. Two
* things worth noting are that vi would often hang or drop core
* if the map was strange enough (ex: map X "xy$@x^V), or, simply
* not work. One trick worth remembering is that if you put a
* mark at the start of the map, e.g. map X mx"xy ...), or if you
* put the map in a .exrc file, things would often work much better.
* No clue why.
*
* PUBLIC: int ex_map(SCR *, EXCMD *);
*/
int
ex_map(SCR *sp, EXCMD *cmdp)
{
seq_t stype;
CHAR_T *input, *p;
stype = FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND;
switch (cmdp->argc) {
case 0:
if (seq_dump(sp, stype, 1) == 0)
msgq(sp, M_INFO, stype == SEQ_INPUT ?
"No input map entries" :
"No command map entries");
return (0);
case 2:
input = cmdp->argv[0]->bp;
break;
default:
abort();
}
/*
* If the mapped string is #[0-9]* (and wasn't quoted) then store the
* function key mapping. If the screen specific routine has been set,
* call it as well. Note, the SEQ_FUNCMAP type is persistent across
* screen types, maybe the next screen type will get it right.
*/
if (input[0] == '#' && isdigit(input[1])) {
for (p = input + 2; isdigit(*p); ++p);
if (p[0] != '\0')
goto nofunc;
if (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len,
cmdp->argv[1]->bp, cmdp->argv[1]->len, stype,
SEQ_FUNCMAP | SEQ_USERDEF))
return (1);
return (sp->gp->scr_fmap == NULL ? 0 :
sp->gp->scr_fmap(sp, stype, input, cmdp->argv[0]->len,
cmdp->argv[1]->bp, cmdp->argv[1]->len));
}
/* Some single keys may not be remapped in command mode. */
nofunc: if (stype == SEQ_COMMAND && input[1] == '\0')
switch (KEY_VAL(sp, input[0])) {
case K_COLON:
case K_ESCAPE:
case K_NL:
msgq(sp, M_ERR,
"The %s character may not be remapped",
KEY_NAME(sp, input[0]));
return (1);
}
return (seq_set(sp, NULL, 0, input, cmdp->argv[0]->len,
cmdp->argv[1]->bp, cmdp->argv[1]->len, stype, SEQ_USERDEF));
}
/*
* ex_unmap -- (:unmap[!] key)
* Unmap a key.
*
* PUBLIC: int ex_unmap(SCR *, EXCMD *);
*/
int
ex_unmap(SCR *sp, EXCMD *cmdp)
{
if (seq_delete(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len,
FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND)) {
msgq_str(sp, M_INFO,
cmdp->argv[0]->bp, "\"%s\" isn't currently mapped");
return (1);
}
return (0);
}
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