diff options
Diffstat (limited to 'Zend/zend_unicode.h')
| -rw-r--r-- | Zend/zend_unicode.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Zend/zend_unicode.h b/Zend/zend_unicode.h index 950dc7c1fd..6de5538936 100644 --- a/Zend/zend_unicode.h +++ b/Zend/zend_unicode.h @@ -71,6 +71,24 @@ static inline UChar32 zend_get_codepoint_at(UChar *str, int32_t length, int32_t return c; } +/* + * Convert a single codepoint to UChar sequence (1 or 2). + * The UChar buffer is assumed to be large enough. + */ +static inline int zend_codepoint_to_uchar(UChar32 codepoint, UChar *buf) +{ + if (U_IS_BMP(codepoint)) { + *buf++ = (UChar) codepoint; + return 1; + } else if (codepoint <= UCHAR_MAX_VALUE) { + *buf++ = (UChar) U16_LEAD(codepoint); + *buf++ = (UChar) U16_TRAIL(codepoint); + return 2; + } else { + return 0; + } +} + #define ZEND_U_CONVERTER(c) ((c)?(c):UG(fallback_encoding_conv)) #define USTR_FREE(ustr) do { if (ustr) { efree(ustr); } } while (0); |