165 lines
4.5 KiB
C
165 lines
4.5 KiB
C
/*
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* Copyright 2004-2007 James Bursa <bursa@users.sourceforge.net>
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* Copyright 2004 John Tytgat <joty@netsurf-browser.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _NETSURF_UTILS_UTILS_H_
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#define _NETSURF_UTILS_UTILS_H_
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#include <inttypes.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <regex.h>
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#include <assert.h>
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#ifndef NOF_ELEMENTS
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#define NOF_ELEMENTS(array) (sizeof(array)/sizeof(*(array)))
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#endif
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#ifndef ABS
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#define ABS(x) (((x)>0)?(x):(-(x)))
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#endif
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#ifdef __MINT__ /* avoid using GCCs builtin min/max functions */
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#undef min
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#undef max
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#endif
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#ifndef min
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#define min(x,y) (((x)<(y))?(x):(y))
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#endif
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#ifndef max
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#define max(x,y) (((x)>(y))?(x):(y))
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#endif
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#ifndef PRIxPTR
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#define PRIxPTR "x"
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#endif
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#ifndef PRId64
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#define PRId64 "lld"
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#endif
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#if defined(__HAIKU__) || defined(__BEOS__)
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#define strtof(s,p) ((float)(strtod((s),(p))))
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#endif
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#if !defined(ceilf) && defined(__MINT__)
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#define ceilf(x) (float)ceil((double)x)
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#endif
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/**
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* Calculate length of constant C string.
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*
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* \param x a constant C string.
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* \return the length of C string without its terminating NUL accounted.
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*/
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#define SLEN(x) (sizeof((x)) - 1)
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enum query_response {
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QUERY_CONTINUE,
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QUERY_YES,
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QUERY_NO,
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QUERY_ESCAPE
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};
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typedef int query_id;
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#define QUERY_INVALID ((query_id)-1)
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typedef struct
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{
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void (*confirm)(query_id id, enum query_response res, void *pw);
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void (*cancel)(query_id, enum query_response res, void *pw);
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} query_callback;
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#ifdef HAVE_MKDIR
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#define nsmkdir(dir, mode) mkdir((dir), (mode))
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#else
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#define nsmkdir(dir, mode) mkdir((dir))
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#endif
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#ifndef timeradd
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#define timeradd(a, aa, result) \
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do { \
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(result)->tv_sec = (a)->tv_sec + (aa)->tv_sec; \
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(result)->tv_usec = (a)->tv_usec + (aa)->tv_usec; \
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if ((result)->tv_usec >= 1000000) { \
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++(result)->tv_sec; \
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(result)->tv_usec -= 1000000; \
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} \
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} while (0)
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#endif
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#ifndef timersub
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#define timersub(a, aa, result) \
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do { \
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(result)->tv_sec = (a)->tv_sec - (aa)->tv_sec; \
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(result)->tv_usec = (a)->tv_usec - (aa)->tv_usec; \
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if ((result)->tv_usec < 0) { \
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--(result)->tv_sec; \
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(result)->tv_usec += 1000000; \
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} \
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} while (0)
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#endif
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/**
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* Private-word-capable realloc() implementation which
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* behaves as most NS libraries expect in the face of
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* realloc(ptr, 0) and realloc(NULL, size).
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*
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* \param ptr The pointer for reallocation
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* \param size The number of bytes for the allocation
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* \param pw A "private word" which we ignore.
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* \return The new pointer (NULL on frees or errors)
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*/
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void *ns_realloc(void *ptr, size_t size, void *pw);
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char * strip(char * const s);
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int whitespace(const char * str);
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char * squash_whitespace(const char * s);
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char *remove_underscores(const char *s, bool replacespace);
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char *cnv_space2nbsp(const char *s);
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bool is_dir(const char *path);
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void regcomp_wrapper(regex_t *preg, const char *regex, int cflags);
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void unicode_transliterate(unsigned int c, char **r);
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char *human_friendly_bytesize(unsigned long bytesize);
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const char *rfc1123_date(time_t t);
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unsigned int wallclock(void);
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int timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *y);
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/**
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* Return a hex digit for the given numerical value.
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*
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* \return character in range 0-9a-f
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*/
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inline static char digit2lowcase_hex(unsigned char digit) {
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assert(digit < 16);
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return "0123456789abcdef"[digit];
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}
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/* Platform specific functions */
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void die(const char * const error);
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void warn_user(const char *warning, const char *detail);
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query_id query_user(const char *query, const char *detail,
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const query_callback *cb, void *pw, const char *yes, const char *no);
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void query_close(query_id);
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void PDF_Password(char **owner_pass, char **user_pass, char *path);
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char *filename_from_path(char *path);
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bool path_add_part(char *path, int length, const char *newpart);
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#endif
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