Implement casefolding

1 files changed, 6 insertions, 0 deletions

diff --git a/include/unicode/string.h b/include/unicode/string.h
index 0c1786c..d80f04c 100644
--- a/include/unicode/string.h
+++ b/include/unicode/string.h
@@ -6,6 +6,8 @@
 #include "__charN_t.h"
 #include "__u8view.h"
 
+/* clang-format off */
+
 enum [[clang::__flag_enum__]] caseflags {
 	CF_LANG_AZ = 1 << 0, /* Azeri; alias for UF_LANG_TR */
 	CF_LANG_TR = 1 << 0, /* Turkish; alias for UF_LANG_AZ */
@@ -13,9 +15,13 @@ enum [[clang::__flag_enum__]] caseflags {
 	CF_ẞ       = 1 << 2, /* Use ‘ẞ’ as the uppercase of ‘ß’ */
 };
 
+/* clang-format on */
+
 size_t u8glen(const char8_t *, size_t);
 size_t u8gnext(struct u8view *, const char8_t **, size_t *);
 
+size_t u8casefold(char8_t *restrict, size_t, const char8_t *, size_t,
+                  enum caseflags);
 size_t u8lower(char8_t *restrict, size_t, const char8_t *, size_t,
                enum caseflags);
 size_t u8upper(char8_t *restrict, size_t, const char8_t *, size_t,