1 files changed, 90 insertions, 0 deletions
diff --git a/unicode/unicode_emoji.c b/unicode/unicode_emoji.c
new file mode 100644
index 0000000..9dcd2e6
--- /dev/null
+++ b/unicode/unicode_emoji.c
@@ -0,0 +1,90 @@
+/*
+** 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;
+}