34 #define UNICODE_DECOMPOSE		0x01
35 #define UNICODE_PRECOMPOSE		0x02
36 #define UNICODE_UTF8_LATIN1_FALLBACK	0x03
51 #define IS_CONT(c)	(((c)&0xc0) == 0x80)  in utf8_to_utf16()
53     error = 0;  in utf8_to_utf16()
55     spos = dpos = 0;  in utf8_to_utf16()
57 	if (s[spos] < 0x80)  in utf8_to_utf16()
61 		 && s[spos]>=0xa0) {  in utf8_to_utf16()
65 	else if (s[spos] < 0xc0 || s[spos] >= 0xf5) {  in utf8_to_utf16()
67 	       or lead byte for codepoint above 0x10ffff */  in utf8_to_utf16()
72 	else if (s[spos] < 0xe0) {  in utf8_to_utf16()
78 	    c = ((s[spos] & 0x3f) << 6) | (s[spos+1] & 0x3f);  in utf8_to_utf16()
80 	    if (c < 0x80) {  in utf8_to_utf16()
86 	else if (s[spos] < 0xf0) {  in utf8_to_utf16()
93 	    c = ((s[spos] & 0x0f) << 12) | ((s[spos+1] & 0x3f) << 6)  in utf8_to_utf16()
94 		| (s[spos+2] & 0x3f);  in utf8_to_utf16()
96 	    if (c < 0x800 || (c & 0xdf00) == 0xd800 ) {  in utf8_to_utf16()
113 	    cc = ((s[spos] & 0x03) << 18) | ((s[spos+1] & 0x3f) << 12)  in utf8_to_utf16()
114 		 | ((s[spos+2] & 0x3f) << 6) | (s[spos+3] & 0x3f);  in utf8_to_utf16()
116 	    if (cc < 0x10000) {  in utf8_to_utf16()
122 		dst[dpos] = (0xd800 | ((cc-0x10000)>>10));  in utf8_to_utf16()
124 	    c = 0xdc00 | ((cc-0x10000) & 0x3ffff);  in utf8_to_utf16()
150 #define ADD_BYTE(b)	(dst ? dst[dpos] = (b) : 0, dpos++)  in utf16_to_utf8()
152     error = 0;  in utf16_to_utf8()
153     dpos = 0;  in utf16_to_utf8()
154     for (spos=0; spos<src_len; spos++) {  in utf16_to_utf8()
155 	if (src[spos] < 0x80) {  in utf16_to_utf8()
159 	else if (src[spos] < 0x800) {  in utf16_to_utf8()
161 	    ADD_BYTE(0xc0 | (src[spos]>>6));  in utf16_to_utf8()
162 	    ADD_BYTE(0x80 | (src[spos] & 0x3f));  in utf16_to_utf8()
164 	else if ((src[spos] & 0xdc00) == 0xd800) {  in utf16_to_utf8()
167 	    if (spos == src_len - 1 || (src[spos] & 0xdc00) != 0xdc00) {  in utf16_to_utf8()
174 	    c = (((src[spos]&0x3ff) << 10) | (src[spos+1]&0x3ff)) + 0x10000;  in utf16_to_utf8()
175 	    ADD_BYTE(0xf0 | (c>>18));  in utf16_to_utf8()
176 	    ADD_BYTE(0x80 | ((c>>12) & 0x3f));  in utf16_to_utf8()
177 	    ADD_BYTE(0x80 | ((c>>6) & 0x3f));  in utf16_to_utf8()
178 	    ADD_BYTE(0x80 | (c & 0x3f));  in utf16_to_utf8()
180 	else if ((src[spos] & 0xdc00) == 0xdc00) {  in utf16_to_utf8()
186 	    ADD_BYTE(0xe0 | src[spos]>>12);  in utf16_to_utf8()
187 	    ADD_BYTE(0x80 | ((src[spos]>>6) & 0x3f));  in utf16_to_utf8()
188 	    ADD_BYTE(0x80 | (src[spos] & 0x3f));  in utf16_to_utf8()