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/*
* routines.h -- general use routines
* Copyright (c) 1995-1999 Akim Demaille, Miguel Santana
*/
/*
* 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.
*/
#ifndef _ROUTINES_H_
# define _ROUTINES_H_
/*
* From xgetcwd.c
*/
char *xgetcwd PARAMS ((void));
/*
* from xgethostname.c
*/
char *xgethostname PARAMS ((void));
char *stpcpy PARAMS ((char * dest, const char * src));
char *stpncpy PARAMS ((char * dest, const char * src, size_t n));
/*
* unsigned char variation of usual functions on strings
*/
#define ustrcat(x,y) \
(strcat((char *)(x), (const char *)(y)))
#define ustrncat(x,y,n) \
(strncat(((char *)x), (const char *) y, n))
#define ustrcpy(x,y) \
(strcpy((char *)(x), (const char *)(y)))
#define ustrncpy(x,y,z) \
(strncpy((char *)(x), (const char *)(y), (z)))
#define ustpcpy(x,y) \
(stpcpy((char *)(x), (const char *)(y)))
#define ustpncpy(x,y,z) \
(stpncpy((char *)(x), (const char *)(y), (z)))
#define ustrcmp(x,y) \
(strcmp((const char *)(x), (const char *)(y)))
#define ustrncmp(x,y,z) \
(strncmp((const char *)(x), (const char *)(y), (z)))
#define ustrlen(x) \
(strlen((const char *)(x)))
#define ustrchr(x,y) \
((uchar *) strchr((char *)(x), (int)(y)))
#define ustrrchr(x,y) \
((uchar *) strrchr((char *)(x), (int)(y)))
#define xustrdup(x) \
((uchar *) xstrdup((const char *)(x)))
#define ustrtok(x,y) \
((uchar *) strtok ((char *)(x), (const char *)(y)))
/*
* Put in X a copy of chars in Y from Z to T
*/
#define ustrsub(x,y,z,t) \
((uchar *) strsub ((char *)(x), (const char *)(y), (z), (t)));
/*
* A string prefixes another
*/
#define strprefix(s1, s2) \
(!strncmp(s1, s2, strlen(s1)))
#define ustrprefix(s1, s2) \
(!ustrncmp(s1, s2, ustrlen(s1)))
/*
* A string is the end of another
*
* Note that there are too many strlens. But I know
* no other way...
*/
#define strsuffix(s1, s2) \
((strlen (s1) < strlen (s2)) \
? 0 \
: !strcmp (s1 + strlen (s1) - strlen (s2), s2))
#define ustrsuffix(s1, s2) \
((ustrlen (s1) < ustrlen (s2)) \
? 0 \
: !ustrcmp (s1 + ustrlen (s1) - ustrlen (s2), s2))
/*
* Replace a malloc'd string with another
*/
#define xstrcpy(s1, s2) \
do { \
const char *my_s2 = (s2); \
XFREE (s1); \
s1 = !IS_EMPTY (my_s2) ? xstrdup (my_s2) : NULL; \
} while (0)
/* We cannot just define this one like
xstrcpy ((char *) s1, (const char *) s2);
because it will expand into a line like
(char *) s1 = ...
and AIX 3.2's cc choke on this!!! It says
(S) Operand must be a modifiable lvalue. */
#define xustrcpy(s1, s2) \
do { \
const uchar *my_s2 = (uchar *) (s2); \
XFREE (s1); \
s1 = !IS_EMPTY (my_s2) ? xustrdup (my_s2) : UNULL; \
} while (0)
/*
* Cut the _STRING_ a the first occurence of the _CHAR_ if there is
*/
#define strcut(_string_, _char_) \
do { \
char * __strcut_cp; \
__strcut_cp = strchr (_string_, _char_); \
if (__strcut_cp) \
*__strcut_cp = '\0'; \
} while (0)
#define ustrcut(_ustring_, _uchar_) \
strcut ((char *) (_ustring_), (char) _uchar_)
/*
* Cut the _STRING_ a the last occurence of the _CHAR_ if there is
*/
#define strrcut(_string_, _char_) \
do { \
char * __strrcut_cp; \
__strrcut_cp = strrchr (_string_, _char_); \
if (__strrcut_cp) \
*__strrcut_cp = '\0'; \
} while (0)
#define ustrrcut(_ustring_, _uchar_) \
strrcut ((char *) (_ustring_), (char) _uchar_)
/*
* alloca version of some str routines
*/
/*
Here is a very interesting part of the GNU libc doc,
which explains a problem I had...
Do not use `alloca' inside the arguments of a function call--you
will get unpredictable results, because the stack space for the
`alloca' would appear on the stack in the middle of the space for the
function arguments. An example of what to avoid is `foo (x, alloca
(4), y)'.
*/
#define astrcpy(_d_,_s_) \
do { \
const char * _tmp_ = (const char *) (_s_); \
_d_ = ALLOCA (char, strlen (_tmp_) + 1); \
strcpy (_d_, _tmp_); \
} while (0)
#define austrcpy(_d_,_s_) \
do { \
const uchar * _tmp_ = (const uchar *) (_s_); \
_d_ = ALLOCA (uchar, ustrlen (_tmp_) + 1); \
ustrcpy (_d_, _tmp_); \
} while (0)
#define strcat2(_d_,_s1_,_s2_) \
do { \
stpcpy (stpcpy (_d_, _s1_), _s2_); \
} while (0)
#define astrcat2(_d_,_s1_,_s2_) \
do { \
const char * _tmp1_ = (const char *) (_s1_); \
const char * _tmp2_ = (const char *) (_s2_); \
_d_ = ALLOCA (char, (strlen (_tmp1_) \
+ strlen (_tmp2_) + 1));\
strcat2(_d_,_s1_,_s2_); \
} while (0)
/*
* Concatenation of a char. No malloc is done.
*/
#define USTRCCAT(s, c) \
do { int __len = strlen((const char *)s); \
*(s+__len) = c; \
*(s+__len+1) = '\0'; \
} while (false)
#define IS_BETWEEN(x, min, max) (((min) <= (x)) && ((x) <= (max)))
#define IS_EMPTY(s1) \
(((const char *) (s1) == NULL) || (*(s1) == '\0'))
#define UNNULL(s1) \
((((void const *) s1) == NULL) ? (const char *) "" : (const char *) (s1))
#define ustrequ(s1, s2) (!ustrcmp(s1, s2))
#define strcaseequ(s1, s2) (!strcasecmp(s1, s2))
/* Functions on strings */
void string_to_array PARAMS ((uchar arr[256], const uchar * string));
int is_strlower PARAMS((const uchar * string));
uchar *strnlower PARAMS ((uchar * string, size_t len));
uchar *strlower PARAMS ((uchar * string));
uchar *strcpylc PARAMS ((uchar *dst, const uchar *src));
void ustrccat PARAMS((uchar * string, uchar c));
int strcnt PARAMS((uchar * s, uchar c));
char * strsub PARAMS ((char * dest,
const char * string, int start, int length));
/* Copy the content of IN into OUT */
void streams_copy PARAMS ((FILE * in, FILE * out));
/* Dump the content of a file onto STREAM */
void stream_dump PARAMS ((FILE * stream, const char * filename));
/* unlink FILENAME */
void unlink2 PARAMS ((void* dummy, const char * filename));
/* Fopen but exits on failure */
FILE * xfopen PARAMS ((const char * filename, const char * rights,
const char * format));
/* opened "r", and "w" */
FILE * xrfopen PARAMS ((const char * filename));
FILE * xwfopen PARAMS ((const char * filename));
/* Popen but exits on failure */
FILE * xpopen PARAMS ((const char * command, const char * rights,
const char * format));
/* opened "r", and "w" */
FILE * xrpopen PARAMS ((const char * command));
FILE * xwpopen PARAMS ((const char * command));
/* If _STR_ is not defined, give it a tempname in _TMPDIR_ */
#define tempname_ensure(Str) \
do { \
(Str) = (Str) ? (Str) : tempnam (NULL, "a2_"); \
} while (0)
#endif
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