Fix concatenating of surrogates.

JerryScript-DCO-1.0-Signed-off-by: Andrey Shitov a.shitov@samsung.com
2015-07-09 18:27:23 +03:00
parent 9fc1958903
commit dbf3708255
4 changed files with 104 additions and 11 deletions
@@ -73,6 +73,12 @@
 #define LIT_UTF8_4_BYTE_CODE_POINT_MIN (0x10000)
 #define LIT_UTF8_4_BYTE_CODE_POINT_MAX (LIT_UNICODE_CODE_POINT_MAX)

+/**
+ * Differnce between byte count needed to represent code point greater than 0xFFFF
+ * in common UTF-8 (4 bytes required) and CESU-8 (6 bytes required)
+ */
+#define LIT_UTF8_CESU8_SURROGATE_SIZE_DIF (2 * LIT_UTF8_MAX_BYTES_IN_CODE_UNIT - LIT_UTF8_MAX_BYTES_IN_CODE_POINT)
+
 /**
 * Width of the offset field in lit_utf8_iterator_pos_t structure
 */