misc.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1985 AT&T
* All Rights Reserved
*/
#ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */
#include <stdio.h>
#include "wish.h"
#include "moremacros.h"
/*
* gets the next line that does not begin with '#' or '\n', and removes
* the trailing '\n'. Returns buf, or NULL if EOF is encountered.
*/
char *
get_skip(buf, size, fp)
char *buf;
int size;
FILE *fp;
{
register char *p;
while ((p = fgets(buf, size, fp)) && (buf[0] == '#' || buf[0] == '\n'))
;
if (p)
p[strlen(p) - 1] = '\0';
return p;
}
/*
* frees *dst, if already set, and sets it to the strsaved value of the
* next tab delimited field. Return value is ptr to char after the tab
* (which is overwritten by a '\0'). If there is no field or src is
* NULL, *dst remains unchanged and NULL is returned
*/
char *
tab_parse(dst, src)
char **dst;
char *src;
{
register char *p;
char *strchr();
if (src == NULL)
return NULL;
while (*src == '\t')
src++;
if (*src == '\0')
return NULL;
if (*dst)
free(*dst);
if (p = strchr(src, '\t'))
*p++ = '\0';
*dst = strsave(src);
src = p;
return src;
}
long
tab_long(src, base)
char **src;
{
char *strchr();
long strtol();
if (*src == NULL || **src == '\0') {
*src = NULL;
return 0L;
}
while (**src == '\t')
(*src)++;
return strtol(*src, src, base);
}