bsd/vfs/vfs_utfconv.c

153 static u_int16_t  ucs_to_sfm(u_int16_t ucs_ch, int lastchar);
155 static u_int16_t  sfm_to_ucs(u_int16_t ucs_ch);
195 	u_int16_t ucs_ch;
210 			ucs_ch = *chp++;
212 			ucs_ch = *ucsp++;
214 				ucs_ch = OSSwapInt16(ucs_ch);
216 			if (ucs_ch == '/') {
217 				ucs_ch = altslash ? altslash : '_';
218 			} else if (ucs_ch == '\0') {
219 				ucs_ch = UCS_ALT_NULL;
220 			} else if (decompose && unicode_decomposeable(ucs_ch)) {
221 				extra = unicode_decompose(ucs_ch, sequence) - 1;
223 				ucs_ch = sequence[0];
227 		len += UNICODE_TO_UTF8_LEN(ucs_ch);
265 	u_int16_t ucs_ch;
285 			ucs_ch = *chp++;
287 			ucs_ch = swapbytes ? OSSwapInt16(*ucsp++) : *ucsp++;
289 			if (decompose && unicode_decomposeable(ucs_ch)) {
290 				extra = unicode_decompose(ucs_ch, sequence) - 1;
292 				ucs_ch = sequence[0];
298 		if (ucs_ch == '/') {
300 				ucs_ch = altslash;
302 				ucs_ch = '_';
305 		} else if (ucs_ch == '\0') {
306 			ucs_ch = UCS_ALT_NULL;
309 		if (ucs_ch < 0x0080) {
314 			*utf8p++ = ucs_ch;
316 		} else if (ucs_ch < 0x800) {
321 			*utf8p++ = 0xc0 | (ucs_ch >> 6);
322 			*utf8p++ = 0x80 | (0x3f & ucs_ch);
326 			if (ucs_ch == 0xFFFE || ucs_ch == 0xFFFF) {
332 			if (ucs_ch >= SP_HIGH_FIRST && ucs_ch <= SP_HIGH_LAST
339 					pair = ((ucs_ch - SP_HIGH_FIRST) << SP_HALF_SHIFT)
354 				ucs_ch = sfm_to_ucs(ucs_ch);
355 				if (ucs_ch < 0x0080) {
360 					*utf8p++ = ucs_ch;
368 			*utf8p++ = 0xe0 | (ucs_ch >> 12);
369 			*utf8p++ = 0x80 | (0x3f & (ucs_ch >> 6));
370 			*utf8p++ = 0x80 | (0x3f & ucs_ch);
416 	unsigned int ucs_ch;
439 			ucs_ch = sfmconv ? ucs_to_sfm(byte, utf8len == 0) : byte;
459 				ucs_ch = ch;
480 				ucs_ch = ch;
497 				ucs_ch = (ch >> SP_HALF_SHIFT) + SP_HIGH_FIRST;
498 				if (ucs_ch < SP_HIGH_FIRST || ucs_ch > SP_HIGH_LAST)
500 				*ucsp++ = swapbytes ? OSSwapInt16(ucs_ch) : (u_int16_t)ucs_ch;
503 				ucs_ch = (ch & SP_HALF_MASK) + SP_LOW_FIRST;
504 				if (ucs_ch < SP_LOW_FIRST || ucs_ch > SP_LOW_LAST) {
508 				*ucsp++ = swapbytes ? OSSwapInt16(ucs_ch) : (u_int16_t)ucs_ch;
515 				if (unicode_decomposeable(ucs_ch)) {
528 					count = unicode_decompose(ucs_ch, sequence);
530 						ucs_ch = sequence[i];
531 						*ucsp++ = swapbytes ? OSSwapInt16(ucs_ch) : (u_int16_t)ucs_ch;
541 				if (unicode_combinable(ucs_ch)) {
543 					composite = unicode_combine(base, ucs_ch);
546 						ucs_ch = composite;
550 			if (ucs_ch == UCS_ALT_NULL)
551 				ucs_ch = '\0';
553 		if (ucs_ch == altslash)
554 			ucs_ch = '/';
559 		if (unicode_combinable(ucs_ch)) {
568 		*ucsp++ = swapbytes ? OSSwapInt16(ucs_ch) : (u_int16_t)ucs_ch;
600 		ucs_ch = '%';
601 		*ucsp++ = swapbytes ? OSSwapInt16(ucs_ch) : (u_int16_t)ucs_ch;
602 		ucs_ch =  hexdigits[byte >> 4];
603 		*ucsp++ = swapbytes ? OSSwapInt16(ucs_ch) : (u_int16_t)ucs_ch;
604 		ucs_ch =  hexdigits[byte & 0x0F];
605 		*ucsp++ = swapbytes ? OSSwapInt16(ucs_ch) : (u_int16_t)ucs_ch;
632 	unsigned int ucs_ch;
691 			ucs_ch = (ch >> SP_HALF_SHIFT) + SP_HIGH_FIRST;
692 			if (ucs_ch < SP_HIGH_FIRST || ucs_ch > SP_HIGH_LAST)
694 			ucs_ch = (ch & SP_HALF_MASK) + SP_LOW_FIRST;
695 			if (ucs_ch < SP_LOW_FIRST || ucs_ch > SP_LOW_LAST)
1129 ucs_to_sfm(u_int16_t ucs_ch, int lastchar)
1133 		if (ucs_ch == 0x20)
1135 		else if (ucs_ch == 0x2e)
1139 	if (ucs_ch <= 0x1f) {
1140 		return (ucs_ch | 0xf000);
1144 		lsb = mac2sfm[ucs_ch - 0x0020];
1145 		if (lsb != ucs_ch)
1148 	return (ucs_ch);
1155 sfm_to_ucs(u_int16_t ucs_ch)
1157 	if (((ucs_ch & 0xffC0) == SFMCODE_PREFIX_MASK) &&
1158 	    ((ucs_ch & 0x003f) <= MAX_SFM2MAC)) {
1159 		ucs_ch = sfm2mac[ucs_ch & 0x003f];
1161 	return (ucs_ch);