Sweden-Number/tools/widl/utils.c

244 lines
4.5 KiB
C

/*
* Utility routines
*
* Copyright 1998 Bertho A. Stultiens
* Copyright 2002 Ove Kaaven
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include "widl.h"
#include "utils.h"
#include "parser.h"
#define CURRENT_LOCATION { input_name ? input_name : "stdin", line_number, parser_text }
static const int want_near_indication = 0;
static void make_print(char *str)
{
while(*str)
{
if(!isprint(*str))
*str = ' ';
str++;
}
}
static void generic_msg(const loc_info_t *loc_info, const char *s, const char *t, va_list ap)
{
fprintf(stderr, "%s:%d: %s: ", loc_info->input_name, loc_info->line_number, t);
vfprintf(stderr, s, ap);
if (want_near_indication)
{
char *cpy;
if(loc_info->near_text)
{
cpy = xstrdup(loc_info->near_text);
make_print(cpy);
fprintf(stderr, " near '%s'", cpy);
free(cpy);
}
}
}
/* yyerror: yacc assumes this is not newline terminated. */
int parser_error(const char *s, ...)
{
loc_info_t cur_location = CURRENT_LOCATION;
va_list ap;
va_start(ap, s);
generic_msg(&cur_location, s, "Error", ap);
fprintf(stderr, "\n");
va_end(ap);
exit(1);
return 1;
}
void error_loc(const char *s, ...)
{
loc_info_t cur_loc = CURRENT_LOCATION;
va_list ap;
va_start(ap, s);
generic_msg(&cur_loc, s, "Error", ap);
va_end(ap);
exit(1);
}
void error_loc_info(const loc_info_t *loc_info, const char *s, ...)
{
va_list ap;
va_start(ap, s);
generic_msg(loc_info, s, "Error", ap);
va_end(ap);
exit(1);
}
int parser_warning(const char *s, ...)
{
loc_info_t cur_loc = CURRENT_LOCATION;
va_list ap;
va_start(ap, s);
generic_msg(&cur_loc, s, "Warning", ap);
va_end(ap);
return 0;
}
void error(const char *s, ...)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "error: ");
vfprintf(stderr, s, ap);
va_end(ap);
exit(2);
}
void warning(const char *s, ...)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "warning: ");
vfprintf(stderr, s, ap);
va_end(ap);
}
void warning_loc_info(const loc_info_t *loc_info, const char *s, ...)
{
va_list ap;
va_start(ap, s);
generic_msg(loc_info, s, "Warning", ap);
va_end(ap);
}
void chat(const char *s, ...)
{
if(debuglevel & DEBUGLEVEL_CHAT)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "chat: ");
vfprintf(stderr, s, ap);
va_end(ap);
}
}
char *dup_basename(const char *name, const char *ext)
{
int namelen;
int extlen = strlen(ext);
char *base;
char *slash;
if(!name)
name = "widl.tab";
slash = strrchr(name, '/');
if (!slash)
slash = strrchr(name, '\\');
if (slash)
name = slash + 1;
namelen = strlen(name);
/* +4 for later extension and +1 for '\0' */
base = xmalloc(namelen +4 +1);
strcpy(base, name);
if(!strcasecmp(name + namelen-extlen, ext))
{
base[namelen - extlen] = '\0';
}
return base;
}
size_t widl_getline(char **linep, size_t *lenp, FILE *fp)
{
char *line = *linep;
size_t len = *lenp;
size_t n = 0;
if (!line)
{
len = 64;
line = xmalloc(len);
}
while (fgets(&line[n], len - n, fp))
{
n += strlen(&line[n]);
if (line[n - 1] == '\n')
break;
else if (n == len - 1)
{
len *= 2;
line = xrealloc(line, len);
}
}
*linep = line;
*lenp = len;
return n;
}
void *xmalloc(size_t size)
{
void *res;
assert(size > 0);
res = malloc(size);
if(res == NULL)
{
error("Virtual memory exhausted.\n");
}
memset(res, 0x55, size);
return res;
}
void *xrealloc(void *p, size_t size)
{
void *res;
assert(size > 0);
res = realloc(p, size);
if(res == NULL)
{
error("Virtual memory exhausted.\n");
}
return res;
}
char *xstrdup(const char *str)
{
char *s;
assert(str != NULL);
s = xmalloc(strlen(str)+1);
return strcpy(s, str);
}