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/*
* This file is part of LibCSS.
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2007-8 John-Mark Bell <jmb@netsurf-browser.org>
*/
#ifndef css_utils_h_
#define css_utils_h_
#include <libwapcaplet/libwapcaplet.h>
#include <libcss/types.h>
#include <libcss/errors.h>
#ifndef max
#define max(a,b) ((a)>(b)?(a):(b))
#endif
#ifndef min
#define min(a,b) ((a)<(b)?(a):(b))
#endif
#ifndef SLEN
/* Calculate length of a string constant */
#define SLEN(s) (sizeof((s)) - 1) /* -1 for '\0' */
#endif
#ifndef UNUSED
#define UNUSED(x) ((x)=(x))
#endif
#ifndef N_ELEMENTS
#define N_ELEMENTS(x) (sizeof((x)) / sizeof((x)[0]))
#endif
css_fixed css__number_from_lwc_string(lwc_string *string, bool int_only,
size_t *consumed);
css_fixed css__number_from_string(const uint8_t *data, size_t len,
bool int_only, size_t *consumed);
static inline bool isDigit(uint8_t c)
{
return '0' <= c && c <= '9';
}
static inline bool isHex(uint8_t c)
{
return isDigit(c) || ('a' <= c && c <= 'f') || ('A' <= c && c <= 'F');
}
static inline uint32_t charToHex(uint8_t c)
{
c -= '0';
if (c > 9)
c -= 'A' - '9' - 1;
if (c > 15)
c -= 'a' - 'A';
return c;
}
static inline css_error css_error_from_lwc_error(lwc_error err)
{
switch (err) {
case lwc_error_ok:
return CSS_OK;
case lwc_error_oom:
return CSS_NOMEM;
case lwc_error_range:
return CSS_BADPARM;
default:
break;
}
return CSS_INVALID;
}
/* Allocator to pass to libparserutils */
#define CSS_ALLOC_PW NULL
void *css_alloc(void *data, size_t len, void *pw);
#endif
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