release 2.4.0

[m6w6/ext-http] / php_http_utf8.h

diff --git a/php_http_utf8.h b/php_http_utf8.h
index 2503f0644e605db64aae577b6523e641b3e54098..f9008032dff0eea98abc8c59cb1134b35ab3b7c3 100644 (file)
--- a/php_http_utf8.h
+++ b/php_http_utf8.h
@@ -625,6 +625,39 @@ static inline zend_bool isualnum(unsigned ch)
        return isualpha(ch);
 }
 
+static inline size_t wctoutf16(unsigned short u16[2], unsigned wc)
+{
+       if (wc > 0x10ffff || (wc >= 0xd800 && wc <= 0xdfff)) {
+               return 0;
+       }
+
+       if (wc <= 0xffff) {
+               u16[0] = (unsigned short) wc;
+               return 1;
+       }
+
+       wc -= 0x10000;
+       u16[0] = (unsigned short) ((wc >> 10) + 0xd800);
+       u16[1] = (unsigned short) ((wc & 0x3ff) + 0xdc00);
+       return 2;
+}
+
+static inline size_t utf16towc(unsigned *wc, unsigned short *u16_str, size_t u16_len)
+{
+       if (u16_len < 1) {
+               return 0;
+       }
+       if (u16_str[0] - 0xd800 >= 0x800) {
+               *wc = u16_str[0];
+               return 1;
+       }
+       if (u16_len < 2 || (u16_str[0] & 0xfffffc00) != 0xd800 || (u16_str[1] & 0xfffffc00) != 0xdc00) {
+               return 0;
+       }
+       *wc = (u16_str[0] << 10) + u16_str[1] - 0x35fdc00;
+       return 2;
+}
+
 #endif /* PHP_HTTP_UTF8_H */
 
 /*