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-rw-r--r--src/htscharset.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/htscharset.h b/src/htscharset.h
index 0453788..92f8b7c 100644
--- a/src/htscharset.h
+++ b/src/htscharset.h
@@ -143,6 +143,13 @@ extern size_t hts_writeUTF8(hts_UCS4 uc, char *dest, size_t size);
**/
extern size_t hts_readUTF8(const char *src, size_t size, hts_UCS4 *puc);
+/**
+ * Given the first UTF-8 sequence character, get the total number of
+ * characters in the sequence (1 for ASCII).
+ * Return 0 upon error (not a leading character).
+ **/
+extern size_t hts_getUTF8SequenceLength(const char lead);
+
/** WIN32 specific functions. **/
#ifdef _WIN32
/**