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/* $OpenBSD: ex_abbrev.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 <sys/time.h>
#include <bitstring.h>
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../common/common.h"
#include "../vi/vi.h"
/*
* ex_abbr -- :abbreviate [key replacement]
* Create an abbreviation or display abbreviations.
*
* PUBLIC: int ex_abbr(SCR *, EXCMD *);
*/
int
ex_abbr(SCR *sp, EXCMD *cmdp)
{
CHAR_T *p;
size_t len;
switch (cmdp->argc) {
case 0:
if (seq_dump(sp, SEQ_ABBREV, 0) == 0)
msgq(sp, M_INFO, "No abbreviations to display");
return (0);
case 2:
break;
default:
abort();
}
/*
* Check for illegal characters.
*
* !!!
* Another fun one, historically. See vi/v_ntext.c:txt_abbrev() for
* details. The bottom line is that all abbreviations have to end
* with a "word" character, because it's the transition from word to
* non-word characters that triggers the test for an abbreviation. In
* addition, because of the way the test is done, there can't be any
* transitions from word to non-word character (or vice-versa) other
* than between the next-to-last and last characters of the string,
* and there can't be any <blank> characters. Warn the user.
*/
if (!inword(cmdp->argv[0]->bp[cmdp->argv[0]->len - 1])) {
msgq(sp, M_ERR,
"Abbreviations must end with a \"word\" character");
return (1);
}
for (p = cmdp->argv[0]->bp; *p != '\0'; ++p)
if (isblank(p[0])) {
msgq(sp, M_ERR,
"Abbreviations may not contain tabs or spaces");
return (1);
}
if (cmdp->argv[0]->len > 2)
for (p = cmdp->argv[0]->bp,
len = cmdp->argv[0]->len - 2; len; --len, ++p)
if (inword(p[0]) != inword(p[1])) {
msgq(sp, M_ERR,
"Abbreviations may not mix word/non-word characters, except at the end");
return (1);
}
if (seq_set(sp, NULL, 0, cmdp->argv[0]->bp, cmdp->argv[0]->len,
cmdp->argv[1]->bp, cmdp->argv[1]->len, SEQ_ABBREV, SEQ_USERDEF))
return (1);
F_SET(sp->gp, G_ABBREV);
return (0);
}
/*
* ex_unabbr -- :unabbreviate key
* Delete an abbreviation.
*
* PUBLIC: int ex_unabbr(SCR *, EXCMD *);
*/
int
ex_unabbr(SCR *sp, EXCMD *cmdp)
{
ARGS *ap;
ap = cmdp->argv[0];
if (!F_ISSET(sp->gp, G_ABBREV) ||
seq_delete(sp, ap->bp, ap->len, SEQ_ABBREV)) {
msgq_str(sp, M_ERR, ap->bp,
"\"%s\" is not an abbreviation");
return (1);
}
return (0);
}
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