56     const UTF32* source = *sourceStart;  in ConvertUTF32toUTF16()  local
58     while (source < sourceEnd) {  in ConvertUTF32toUTF16()
63 	ch = *source++;  in ConvertUTF32toUTF16()
68 		    --source; /* return to the illegal value itself */  in ConvertUTF32toUTF16()
86 		--source; /* Back up source pointer! */  in ConvertUTF32toUTF16()
94     *sourceStart = source;  in ConvertUTF32toUTF16()
105     const UTF16* source = *sourceStart;  in ConvertUTF16toUTF32()  local
108     while (source < sourceEnd) {  in ConvertUTF16toUTF32()
109 	const UTF16* oldSource = source; /*  In case we have to back up because of target overflow. */  in ConvertUTF16toUTF32()
110 	ch = *source++;  in ConvertUTF16toUTF32()
114 	    if (source < sourceEnd) {  in ConvertUTF16toUTF32()
115 		ch2 = *source;  in ConvertUTF16toUTF32()
120 		    ++source;  in ConvertUTF16toUTF32()
122 		    --source; /* return to the illegal value itself */  in ConvertUTF16toUTF32()
127 		--source; /* return to the high surrogate */  in ConvertUTF16toUTF32()
134 		--source; /* return to the illegal value itself */  in ConvertUTF16toUTF32()
140 	    source = oldSource; /* Back up source pointer! */  in ConvertUTF16toUTF32()
145     *sourceStart = source;  in ConvertUTF16toUTF32()
209     const UTF16* source = *sourceStart;  in ConvertUTF16toUTF8()  local
211     while (source < sourceEnd) {  in ConvertUTF16toUTF8()
216 	const UTF16* oldSource = source; /* In case we have to back up because of target overflow. */  in ConvertUTF16toUTF8()
217 	ch = *source++;  in ConvertUTF16toUTF8()
221 	    if (source < sourceEnd) {  in ConvertUTF16toUTF8()
222 		UTF32 ch2 = *source;  in ConvertUTF16toUTF8()
227 		    ++source;  in ConvertUTF16toUTF8()
229 		    --source; /* return to the illegal value itself */  in ConvertUTF16toUTF8()
234 		--source; /* return to the high surrogate */  in ConvertUTF16toUTF8()
241 		--source; /* return to the illegal value itself */  in ConvertUTF16toUTF8()
257 	    source = oldSource; /* Back up source pointer! */  in ConvertUTF16toUTF8()
268     *sourceStart = source;  in ConvertUTF16toUTF8()
287 isLegalUTF8(const UTF8 *source, int length) {  in isLegalUTF8()  argument
289     const UTF8 *srcptr = source+length;  in isLegalUTF8()
297 	switch (*source) {  in isLegalUTF8()
306     case 1: if (*source >= 0x80 && *source < 0xC2) return false;  in isLegalUTF8()
308     if (*source > 0xF4) return false;  in isLegalUTF8()
319 isLegalUTF8Sequence(const UTF8 *source, const UTF8 *sourceEnd) {  in isLegalUTF8Sequence()  argument
320     int length = trailingBytesForUTF8[*source]+1;  in isLegalUTF8Sequence()
321     if (source+length > sourceEnd) {  in isLegalUTF8Sequence()
324     return isLegalUTF8(source, length);  in isLegalUTF8Sequence()
333     const UTF8* source = *sourceStart;  in ConvertUTF8toUTF16()  local
335     while (source < sourceEnd) {  in ConvertUTF8toUTF16()
337 	unsigned short extraBytesToRead = trailingBytesForUTF8[*source];  in ConvertUTF8toUTF16()
338 	if (source + extraBytesToRead >= sourceEnd) {  in ConvertUTF8toUTF16()
342 	if (! isLegalUTF8(source, extraBytesToRead+1)) {  in ConvertUTF8toUTF16()
350 	    case 5: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */  in ConvertUTF8toUTF16()
351 	    case 4: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */  in ConvertUTF8toUTF16()
352 	    case 3: ch += *source++; ch <<= 6;  in ConvertUTF8toUTF16()
353 	    case 2: ch += *source++; ch <<= 6;  in ConvertUTF8toUTF16()
354 	    case 1: ch += *source++; ch <<= 6;  in ConvertUTF8toUTF16()
355 	    case 0: ch += *source++;  in ConvertUTF8toUTF16()
360 	    source -= (extraBytesToRead+1); /* Back up source pointer! */  in ConvertUTF8toUTF16()
367 		    source -= (extraBytesToRead+1); /* return to the illegal value itself */  in ConvertUTF8toUTF16()
379 		source -= (extraBytesToRead+1); /* return to the start */  in ConvertUTF8toUTF16()
387 		source -= (extraBytesToRead+1); /* Back up source pointer! */  in ConvertUTF8toUTF16()
395     *sourceStart = source;  in ConvertUTF8toUTF16()
406     const UTF32* source = *sourceStart;  in ConvertUTF32toUTF8()  local
408     while (source < sourceEnd) {  in ConvertUTF32toUTF8()
413 	ch = *source++;  in ConvertUTF32toUTF8()
417 		--source; /* return to the illegal value itself */  in ConvertUTF32toUTF8()
437 	    --source; /* Back up source pointer! */  in ConvertUTF32toUTF8()
448     *sourceStart = source;  in ConvertUTF32toUTF8()
459     const UTF8* source = *sourceStart;  in ConvertUTF8toUTF32()  local
461     while (source < sourceEnd) {  in ConvertUTF8toUTF32()
463 	unsigned short extraBytesToRead = trailingBytesForUTF8[*source];  in ConvertUTF8toUTF32()
464 	if (source + extraBytesToRead >= sourceEnd) {  in ConvertUTF8toUTF32()
468 	if (! isLegalUTF8(source, extraBytesToRead+1)) {  in ConvertUTF8toUTF32()
476 	    case 5: ch += *source++; ch <<= 6;  in ConvertUTF8toUTF32()
477 	    case 4: ch += *source++; ch <<= 6;  in ConvertUTF8toUTF32()
478 	    case 3: ch += *source++; ch <<= 6;  in ConvertUTF8toUTF32()
479 	    case 2: ch += *source++; ch <<= 6;  in ConvertUTF8toUTF32()
480 	    case 1: ch += *source++; ch <<= 6;  in ConvertUTF8toUTF32()
481 	    case 0: ch += *source++;  in ConvertUTF8toUTF32()
486 	    source -= (extraBytesToRead+1); /* Back up the source pointer! */  in ConvertUTF8toUTF32()
496 		    source -= (extraBytesToRead+1); /* return to the illegal value itself */  in ConvertUTF8toUTF32()
510     *sourceStart = source;  in ConvertUTF8toUTF32()