X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futf8.h;h=77f663438e9c3465c4a1695b5879f41ba8fa3823;hb=086821244b5113f00a0ef993b78dc56aae2a8f6c;hp=c087995930eb0a75f2c7473829d45df97f5f9ff1;hpb=0ade5ffe2778e7b238bba8d979ca4d53dee1e702;p=elogind.git

diff --git a/src/shared/utf8.h b/src/shared/utf8.h
index c08799593..77f663438 100644
--- a/src/shared/utf8.h
+++ b/src/shared/utf8.h
@@ -29,14 +29,27 @@
 
 const char *utf8_is_valid(const char *s) _pure_;
 char *ascii_is_valid(const char *s) _pure_;
-char *utf8_escape_invalid(const char *s);
 
 bool utf8_is_printable_newline(const char* str, size_t length, bool newline) _pure_;
-_pure_ static inline bool utf8_is_printable(const char* str, size_t length) {
-        return utf8_is_printable_newline(str, length, true);
-}
+#define utf8_is_printable(str, length) utf8_is_printable_newline(str, length, true)
 
+char *utf8_escape_invalid(const char *s);
+char *utf8_escape_non_printable(const char *str);
+
+size_t utf8_encode_unichar(char *out_utf8, uint32_t g);
 char *utf16_to_utf8(const void *s, size_t length);
 
 int utf8_encoded_valid_unichar(const char *str);
 int utf8_encoded_to_unichar(const char *str);
+
+static inline bool utf16_is_surrogate(uint16_t c) {
+        return (0xd800 <= c && c <= 0xdfff);
+}
+
+static inline bool utf16_is_trailing_surrogate(uint16_t c) {
+        return (0xdc00 <= c && c <= 0xdfff);
+}
+
+static inline uint32_t utf16_surrogate_pair_to_unichar(uint16_t lead, uint16_t trail) {
+                return ((lead - 0xd800) << 10) + (trail - 0xdc00) + 0x10000;
+}