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/*
* routine.c
*
* general use routines
* Copyright (c) 1988-1993 Miguel Santana
* Copyright (c) 1995-1999 Akim Demaille, Miguel Santana
* $Id: routines.c,v 1.1.1.1.2.1 2007/12/29 01:58:23 mhatta Exp $
*/
/*
* This file is part of a2ps.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "a2ps.h"
#include "routines.h"
#include "stpncpy.h"
#include "message.h"
#include "quotearg.h"
/*
* Convert a list of string of valid chars to an yes/no array
*/
void
string_to_array (uchar arr[256], const uchar * string)
{
int c;
for (c = 0 ; c < 256 ; c++)
arr [c] = false;
for ( /* nothing */ ; *string ; string ++)
arr [*string] = true;
}
/*
* Concatenation of a char. No malloc is done.
*/
void
ustrccat (uchar * string, uchar c)
{
int len = strlen((char *)string);
*(string+len) = c;
*(string+len+1) = '\0';
}
/*
* return true iff there are no upper case chars
*/
int
is_strlower (const uchar * string)
{
for (/* skip */; *string != '\0'; string++)
if (isupper(*string))
return false;
return true;
}
/* Copy the LEN first characters of SRC into DST in lower case.
DST[LEN] is set to \0. */
static inline uchar *
_strncpylc (uchar *dst, const uchar *src, size_t len)
{
size_t i;
for (i = 0 ; i < len ; i++)
dst[i] = tolower (src[i]);
dst[len] = '\0';
return dst;
}
uchar *
strnlower (uchar *string, size_t len)
{
return _strncpylc (string, string, len);
}
uchar *
strlower (uchar *string)
{
return _strncpylc (string, string, strlen (string));
}
uchar *
strcpylc (uchar *dst, const uchar *src)
{
return _strncpylc (dst, src, strlen (src));
}
/*
* Count the number of occurrence of C in S
*/
int
strcnt (uchar *s, uchar c)
{
int res;
for (res = 0 ; *s ; s++)
if (*s == c)
res++;
return res;
}
/*
* Extract a substring for START, of LENGTH, making sure to
* set the trailing '\0' (return pos of \0)
*/
char *
strsub (char * dest, const char * string, int start, int length)
{
char * end = stpncpy (dest, string + start, length);
*end = '\0';
return end;
}
/*
* fopen, but exits on failure
*/
static inline FILE *
_xfopen (const char * filename, const char * rights, const char * format)
{
FILE * res;
message (msg_file,
(stderr, "%s-fopen (%s)\n", rights, quotearg (filename)));
res = fopen (filename, rights);
if (!res)
error (1, errno, format, quotearg (filename));
return res;
}
FILE *
xfopen (const char * filename, const char * rights, const char * format)
{
return _xfopen (filename, rights, format);
}
FILE *
xrfopen (const char * filename)
{
return _xfopen (filename, "r", _("cannot open file `%s'"));
}
FILE *
xwfopen (const char * filename)
{
return _xfopen (filename, "w", _("cannot create file `%s'"));
}
/*
* Like popen, but exist upon failure
*/
static inline FILE *
_xpopen (const char * filename, const char * rights, const char * format)
{
FILE * res;
message (msg_file,
(stderr, "%s-popen (%s)\n", rights, filename));
res = popen (filename, rights);
if (!res)
error (1, errno, format, quotearg (filename));
return res;
}
FILE *
xpopen (const char * filename, const char * rights, const char * format)
{
return _xpopen (filename, rights, format);
}
FILE *
xrpopen (const char * filename)
{
return _xpopen (filename, "r", _("cannot open a pipe on `%s'"));
}
FILE *
xwpopen (const char * filename)
{
return _xpopen (filename, "w", _("cannot open a pipe on `%s'"));
}
/*
* Copy the content of IN into OUT
*/
static inline void
_streams_copy (FILE * in, FILE * out)
{
size_t read_length;
char buf [BUFSIZ];
while ((read_length = fread (buf, sizeof (char), sizeof (buf), in)))
fwrite (buf, sizeof (char), read_length, out);
}
void
streams_copy (FILE * in, FILE * out)
{
_streams_copy (in, out);
}
/*
* Dump the content of the file FILENAME onto STREAM.
* Used when honoring a subcontract.
*/
void
stream_dump (FILE * stream, const char * filename)
{
FILE * fp;
message (msg_tool | msg_file, (stderr, "Dumping file `%s'\n", filename));
fp = xrfopen (filename);
_streams_copy (fp, stream);
fclose (fp);
}
/*
* Unlink the file FILENAME.
*/
void
unlink2 (PARAM_UNUSED void * dummy, const char * filename)
{
message (msg_tool | msg_file, (stderr, "Unlinking file `%s'\n", filename));
/* Don't complain if you can't unlink. Who cares of a tmp file? */
unlink (filename);
}
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