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/*
** Copyright 2011 Double Precision, Inc.
** See COPYING for distribution information.
**
*/
#include "unicode_config.h"
#include "courier-unicode.h"
#include "emojitab.h"
static int emoji_lookup(const char32_t (*p)[2], size_t e, char32_t c)
{
size_t b=0;
while (b < e)
{
size_t n=b + (e-b)/2;
if (c >= p[n][0])
{
if (c <= p[n][1])
{
return 1;
}
b=n+1;
}
else
{
e=n;
}
}
return 0;
}
#define LOOKUP(t) emoji_lookup(t, sizeof(t)/sizeof(t[0]), c)
int unicode_emoji(char32_t c)
{
return LOOKUP(unicode_emoji_emoji_lookup);
}
int unicode_emoji_presentation(char32_t c)
{
return LOOKUP(unicode_emoji_emoji_presentation_lookup);
}
int unicode_emoji_modifier(char32_t c)
{
return LOOKUP(unicode_emoji_emoji_modifier_lookup);
}
int unicode_emoji_modifier_base(char32_t c)
{
return LOOKUP(unicode_emoji_emoji_modifier_base_lookup);
}
int unicode_emoji_component(char32_t c)
{
return LOOKUP(unicode_emoji_emoji_component_lookup);
}
int unicode_emoji_extended_pictographic(char32_t c)
{
return LOOKUP(unicode_emoji_extended_pictographic_lookup);
}
static const struct {
int (*lookup_func)(char32_t);
unicode_emoji_t flag;
} lookups[]={
{ unicode_emoji, UNICODE_EMOJI},
{ unicode_emoji_presentation, UNICODE_EMOJI_PRESENTATION},
{ unicode_emoji_modifier, UNICODE_EMOJI_MODIFIER},
{ unicode_emoji_modifier_base, UNICODE_EMOJI_MODIFIER_BASE},
{ unicode_emoji_component, UNICODE_EMOJI_COMPONENT},
{ unicode_emoji_extended_pictographic,
UNICODE_EMOJI_EXTENDED_PICTOGRAPHIC},
};
extern unicode_emoji_t unicode_emoji_lookup(char32_t c)
{
unicode_emoji_t v=UNICODE_EMOJI_NONE;
for (size_t i=0; i<sizeof(lookups)/sizeof(lookups[0]); ++i)
if ( (*lookups[i].lookup_func)(c) )
v |= lookups[i].flag;
return v;
}
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