lib/Support/ConvertUTF.c

33     Conversions between UTF32, UTF-16, and UTF-8. Source code file.
57 static const UTF32 halfBase = 0x0010000UL;
58 static const UTF32 halfMask = 0x3FFUL;
60 #define UNI_SUR_HIGH_START  (UTF32)0xD800
61 #define UNI_SUR_HIGH_END    (UTF32)0xDBFF
62 #define UNI_SUR_LOW_START   (UTF32)0xDC00
63 #define UNI_SUR_LOW_END     (UTF32)0xDFFF
92 static const UTF32 offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL,
118         const UTF32** sourceStart, const UTF32* sourceEnd,
121     const UTF32* source = *sourceStart;
124         UTF32 ch;
168         UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags) {
171     UTF32* target = *targetStart;
172     UTF32 ch, ch2;
176         /* If we have a surrogate pair, convert to UTF32 first. */
181                 /* If it's a low surrogate, convert to UTF32. */
227         UTF32 ch;
229         const UTF32 byteMask = 0xBF;
230         const UTF32 byteMark = 0x80;
233         /* If we have a surrogate pair, convert to UTF32 first. */
237                 UTF32 ch2 = *source;
238                 /* If it's a low surrogate, convert to UTF32. */
262         if (ch < (UTF32)0x80) {      bytesToWrite = 1;
263         } else if (ch < (UTF32)0x800) {     bytesToWrite = 2;
264         } else if (ch < (UTF32)0x10000) {   bytesToWrite = 3;
265         } else if (ch < (UTF32)0x110000) {  bytesToWrite = 4;
291         const UTF32** sourceStart, const UTF32* sourceEnd,
294     const UTF32* source = *sourceStart;
297         UTF32 ch;
299         const UTF32 byteMask = 0xBF;
300         const UTF32 byteMark = 0x80;
312          * illegally large UTF32 things (> Plane 17) into replacement chars.
314         if (ch < (UTF32)0x80) {      bytesToWrite = 1;
315         } else if (ch < (UTF32)0x800) {     bytesToWrite = 2;
316         } else if (ch < (UTF32)0x10000) {   bytesToWrite = 3;
428         UTF32 ch = 0;
496         UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags) {
499     UTF32* target = *targetStart;
501         UTF32 ch = 0;