/*
* Copyright 2004-2007 James Bursa <bursa@users.sourceforge.net>
* Copyright 2004 John Tytgat <joty@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _NETSURF_UTILS_UTILS_H_
#define _NETSURF_UTILS_UTILS_H_
#include <inttypes.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/time.h>
#include <regex.h>
#include <assert.h>
#ifndef NOF_ELEMENTS
#define NOF_ELEMENTS(array) (sizeof(array)/sizeof(*(array)))
#endif
#ifndef ABS
#define ABS(x) (((x)>0)?(x):(-(x)))
#endif
#ifdef __MINT__ /* avoid using GCCs builtin min/max functions */
#undef min
#undef max
#endif
#ifndef min
#define min(x,y) (((x)<(y))?(x):(y))
#endif
#ifndef max
#define max(x,y) (((x)>(y))?(x):(y))
#endif
#ifndef PRIxPTR
#define PRIxPTR "x"
#endif
#ifndef PRId64
#define PRId64 "lld"
#endif
#if defined(_WIN32)
#define SSIZET_FMT "Iu"
#else
#define SSIZET_FMT "zd"
#endif
#if defined(__GNUC__) && (__GNUC__ < 3)
#define FLEX_ARRAY_LEN_DECL 0
#else
#define FLEX_ARRAY_LEN_DECL
#endif
#if defined(__HAIKU__) || defined(__BEOS__)
#define strtof(s,p) ((float)(strtod((s),(p))))
#endif
#if !defined(ceilf) && defined(__MINT__)
#define ceilf(x) (float)ceil((double)x)
#endif
/**
* Calculate length of constant C string.
*
* \param x a constant C string.
* \return the length of C string without its terminating NUL accounted.
*/
#define SLEN(x) (sizeof((x)) - 1)
enum query_response {
QUERY_CONTINUE,
QUERY_YES,
QUERY_NO,
QUERY_ESCAPE
};
typedef int query_id;
#define QUERY_INVALID ((query_id)-1)
typedef struct
{
void (*confirm)(query_id id, enum query_response res, void *pw);
void (*cancel)(query_id, enum query_response res, void *pw);
} query_callback;
#ifdef HAVE_MKDIR
#define nsmkdir(dir, mode) mkdir((dir), (mode))
#else
#define nsmkdir(dir, mode) mkdir((dir))
#endif
#ifndef timeradd
#define timeradd(a, aa, result) \
do { \
(result)->tv_sec = (a)->tv_sec + (aa)->tv_sec; \
(result)->tv_usec = (a)->tv_usec + (aa)->tv_usec; \
if ((result)->tv_usec >= 1000000) { \
++(result)->tv_sec; \
(result)->tv_usec -= 1000000; \
} \
} while (0)
#endif
#ifndef timersub
#define timersub(a, aa, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (aa)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (aa)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#endif
/**
* Private-word-capable realloc() implementation which
* behaves as most NS libraries expect in the face of
* realloc(ptr, 0) and realloc(NULL, size).
*
* \param ptr The pointer for reallocation
* \param size The number of bytes for the allocation
* \param pw A "private word" which we ignore.
* \return The new pointer (NULL on frees or errors)
*/
void *ns_realloc(void *ptr, size_t size, void *pw);
char * strip(char * const s);
int whitespace(const char * str);
char * squash_whitespace(const char * s);
char *remove_underscores(const char *s, bool replacespace);
char *cnv_space2nbsp(const char *s);
bool is_dir(const char *path);
void regcomp_wrapper(regex_t *preg, const char *regex, int cflags);
char *human_friendly_bytesize(unsigned long bytesize);
const char *rfc1123_date(time_t t);
unsigned int wallclock(void);
/**
* Return a hex digit for the given numerical value.
*
* \return character in range 0-9a-f
*/
inline static char digit2lowcase_hex(unsigned char digit) {
assert(digit < 16);
return "0123456789abcdef"[digit];
}
/**
* Return a hex digit for the given numerical value.
*
* \return character in range 0-9A-F
*/
inline static char digit2uppercase_hex(unsigned char digit) {
assert(digit < 16);
return "0123456789ABCDEF"[digit];
}
/* Platform specific functions */
void die(const char * const error);
void warn_user(const char *warning, const char *detail);
query_id query_user(const char *query, const char *detail,
const query_callback *cb, void *pw, const char *yes, const char *no);
void query_close(query_id);
void PDF_Password(char **owner_pass, char **user_pass, char *path);
char *filename_from_path(char *path);
bool path_add_part(char *path, int length, const char *newpart);
#endif