genparse.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 1.5 */
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h> /* EFT abs k16 */
#include "wish.h"
#include "io.h"
#include "retcds.h"
#include "parse.h"
#include "smdef.h"
#include "typetab.h"
#include "mail.h"
#include "terror.h"
#include "moremacros.h"
long Befkwd;
/* les static???
static char *strsave();
*/
static char *Nullstr = "";
int
skip(fp, p)
FILE *fp;
struct oeh *p;
{
return(skiptokwd(fp));
}
long
getnum(fp, type)
FILE *fp;
int type;
{
char c;
int i;
long atol();
char buf[STR_SIZE];
if (skipspace(fp) == KEYWORD)
return(0L);
for (i = 0, c = getc(fp); isdigit(c); i++, c = getc(fp))
buf[i] = c;
buf[i] = '\0';
ungetc(c, fp);
if (type == SKIP)
skiptokwd(fp);
return(atol(buf));
}
char *
uptokwd(fp)
FILE *fp;
{
char *p;
int c;
int len;
char buf[STR_SIZE];
if (skipspace(fp) == KEYWORD)
return(Nullstr);
fgets(buf, STR_SIZE, fp);
p = strsave(buf);
len = strlen(p);
p[len - 1] = '\0';
while ((c = getc(fp)) == ' ' || c == '\t') {
if (skipspace(fp) == KEYWORD)
return(NULL);
fgets(buf, STR_SIZE, fp);
if ((p = realloc(p, (strlen(buf) + len + 3) * sizeof(char))) == NULL)
fatal(NOMEM, NULL);
strcat(p, " ");
strcat(p, buf);
len = strlen(p);
p[len - 1] = '\0';
}
ungetc(c, fp);
return(p);
}
int
nextkwd(fp, buf)
FILE *fp;
char *buf;
{
int c;
int i;
Befkwd = ftell(fp);
if ((c = getc(fp)) == '\n')
return(PDONE);
for (i = 0; c != '\n' && c != '\t' && c != ' ' && c != EOF; c = getc(fp), i++)
if (i >= STR_SIZE)
return(PDONE);
else
buf[i] = (char)LOWER(c); /* abs: added cast for lint */
if (c == EOF)
return(EOF);
buf[i] = '\0';
if (strncmp(buf, SEPLINE, 10) == 0)
return(PDONE);
ungetc(c, fp);
/*if (buf[i - 1] != ':' && buf[0] != '>')*/
/*return(NOTKEY);*/
return(KEYWORD);
}
/*
** Could easily be made into a macro if preferrable
*/
int
skiptokwd(fp)
FILE *fp;
{
int c;
char buf[STR_SIZE];
for (fgets(buf, STR_SIZE, fp); (c = getc(fp)) == ' ' || c == '\t'; fgets(buf, STR_SIZE, fp));
if (c == EOF)
return(EOF);
ungetc(c, fp);
return(KEYWORD);
}
int
skipspace(fp)
FILE *fp;
{
int c;
while ((c = getc(fp)) != EOF) {
switch (c) {
case '\t':
case ' ':
continue;
case '\n':
if ((c = getc(fp)) == ' ' || c == '\t')
continue;
else {
ungetc(c, fp);
return(KEYWORD);
}
default:
ungetc(c, fp);
return(WORD);
}
}
return(EOF);
}