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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
#define LIST_ALL_FIELDS(X, _)\
X(xlfd_version, equal) _\
X(foundry, equal) _\
X(family_name, equal) _\
X(weight_name, equal) _\
X(slant, equal) _\
X(setwidth_name, equal) _\
X(add_style_name, equal) _\
X(pixel_size, zero_or_equal) _\
X(point_size, zero_or_equal) _\
X(resolution_x, zero_or_equal) _\
X(resolution_y, zero_or_equal) _\
X(spacing, equal) _\
X(average_width, equal) _\
X(charset_registry, equal) _\
X(charset_encoding, equal) _\
X(charset_subset, super)
static const char *
read_uint32(uint32_t *restrict nump, const char *s)
{
uint32_t r;
for (r = 0; isdigit(*s); s++)
r = r * 10 + (uint32_t)(*s & 15);
*nump = r;
return s;
}
static int
super(const char *desc, const char *spec)
{
uint32_t dl = 0, dh = 0, sl = 0, sh = 0;
int have_d = 0, have_s = 0;
if (!spec || !desc)
return 1;
while (*desc && *spec) {
if (!have_d) {
have_d = 1;
if (!isdigit(*desc))
return 0;
desc = read_uint32(&dl, desc);
if (desc[0] == '-' && isdigit(desc[1]))
desc = read_uint32(&dh, &desc[1]);
else
dh = dl;
if (*desc) {
if (*desc != ' ')
return 0;
desc++;
}
}
if (!have_s) {
have_s = 1;
if (!isdigit(*spec))
return 0;
spec = read_uint32(&sl, spec);
if (spec[0] == '-' && isdigit(spec[1]))
spec = read_uint32(&sh, &spec[1]);
else
sh = sl;
if (*spec) {
if (*spec != ' ')
return 0;
spec++;
}
}
if (sl < dl)
return 0;
else if (sl > dh)
have_d = 0;
else if (sh > dh)
return 0;
else
have_s = 0;
}
return !*spec;
}
static int
equal(const char *desc, const char *spec)
{
size_t i;
if (!spec)
return !desc;
if (spec[0] == '*' && !spec[1])
return 1;
if (!desc)
return 0;
for (; desc[i] && spec[i]; i++)
if (tolower(spec[i]) != tolower(desc[i]) && spec[i] != '?')
return 0;
return desc[i] == spec[i];
}
static int
zero_or_equal(const char *desc, const char *spec)
{
if (desc && desc[0] == '0' && !desc[1])
return 1;
else
return equal(desc, spec);
}
static int
many_equal(const char *desc, const char *spec)
{
if (!spec)
return !desc;
if (!desc)
return 0;
while (*spec && *desc) {
if (spec[0] == '*' && (!spec[1] || spec[1] == '-')) {
spec++;
while (*desc && *desc != '-')
desc++;
} else {
while (*spec && *desc && *spec != '-' && *desc != '-') {
if (tolower(*spec) != tolower(*desc) && *spec != '?')
return 0;
}
}
if (*spec != *desc || (*spec && *spec != '-'))
return 0;
}
return *spec == *desc;
}
int
libfonts_do_decoded_font_descriptions_match(const struct libfonts_font_description *desc,
const struct libfonts_font_description *spec)
{
if (desc->private_font_name || spec->private_font_name)
return many_equal(desc->private_font_name, spec->private_font_name);
#define X(FIELD, FUNC)\
if (!FUNC(desc->FIELD, spec->FIELD))\
return 0
LIST_ALL_FIELDS(X, ;);
#undef X
return many_equal(desc->unrecognised_fields, spec->unrecognised_fields);
}
#else
int
main(void)
{
return 0; /* XXX add test */
}
#endif
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