GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/vi/build/../ex/ex_map.c Lines: 0 29 0.0 %
Date: 2017-11-13 Branches: 0 33 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: ex_map.c,v 1.9 2016/05/27 09:18:12 martijn Exp $	*/
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/*-
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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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 * Copyright (c) 1992, 1993, 1994, 1995, 1996
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 *	Keith Bostic.  All rights reserved.
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 *
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 * See the LICENSE file for redistribution information.
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 */
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#include "config.h"
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#include <sys/types.h>
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#include <sys/queue.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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "../common/common.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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 * PUBLIC: int ex_map(SCR *, EXCMD *);
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 */
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int
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ex_map(SCR *sp, EXCMD *cmdp)
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{
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	seq_t stype;
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	CHAR_T *input, *p;
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	stype = FL_ISSET(cmdp->iflags, E_C_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, stype == SEQ_INPUT ?
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			    "No input map entries" :
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			    "No command map entries");
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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 the
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	 * function key mapping.  If the screen specific routine has been set,
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	 * call it as well.  Note, the SEQ_FUNCMAP type is persistent across
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	 * screen types, maybe the next screen type will get it right.
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	 */
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	if (input[0] == '#' && isdigit(input[1])) {
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		for (p = input + 2; 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,
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		    SEQ_FUNCMAP | SEQ_USERDEF))
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			return (1);
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		return (sp->gp->scr_fmap == NULL ? 0 :
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		    sp->gp->scr_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,
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			    "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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 * PUBLIC: int ex_unmap(SCR *, EXCMD *);
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 */
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int
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ex_unmap(SCR *sp, EXCMD *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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	    FL_ISSET(cmdp->iflags, E_C_FORCE) ? SEQ_INPUT : SEQ_COMMAND)) {
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		msgq_str(sp, M_INFO,
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		    cmdp->argv[0]->bp, "\"%s\" isn't currently mapped");
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		return (1);
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	}
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	return (0);
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}