Improve UTF-8 handling.

This should allow case-insensitive matching for non-Latin characters,
and fix matching for characters with diacritics.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/utf8.h b/src/utf8.h
new file mode 100644
index 0000000..b6ee986
--- /dev/null
+++ b/src/utf8.h
@@ -0,0 +1,22 @@
+#ifndef UTF8_H
+#define UTF8_H
+
+#include <glib.h>
+#include <stdint.h>
+
+uint32_t utf8_isupper(uint32_t c);
+uint32_t utf8_islower(uint32_t c);
+uint32_t utf8_isalnum(uint32_t c);
+uint32_t utf8_toupper(uint32_t c);
+uint32_t utf8_tolower(uint32_t c);
+
+uint32_t utf8_get_char(const char *s);
+char *utf8_next_char(const char *s);
+char *utf8_prev_char(const char *s);
+char *utf8_strchr(const char *s, uint32_t c);
+char *utf8_strcasechr(const char *s, uint32_t c);
+size_t utf8_strlen(const char *s);
+char *utf8_strcasestr(const char * restrict haystack, const char * restrict needle);
+char *utf8_normalize(const char *s);
+
+#endif /* UTF8_H */