47     size_t spos, dpos;  in utf8_to_utf16()  local
55     spos = dpos = 0;  in utf8_to_utf16()
56     while (spos<src_len) {  in utf8_to_utf16()
57 	if (s[spos] < 0x80)  in utf8_to_utf16()
58 	    c = s[spos++];  in utf8_to_utf16()
60 		 && (spos >= src_len || !IS_CONT(s[spos+1]))  in utf8_to_utf16()
61 		 && s[spos]>=0xa0) {  in utf8_to_utf16()
63 	    c = s[spos++];  in utf8_to_utf16()
65 	else if (s[spos] < 0xc0 || s[spos] >= 0xf5) {  in utf8_to_utf16()
69 	    spos++;  in utf8_to_utf16()
72 	else if (s[spos] < 0xe0) {  in utf8_to_utf16()
73 	    if (spos >= src_len || !IS_CONT(s[spos+1])) {  in utf8_to_utf16()
74 		spos++;  in utf8_to_utf16()
78 	    c = ((s[spos] & 0x3f) << 6) | (s[spos+1] & 0x3f);  in utf8_to_utf16()
79 	    spos += 2;  in utf8_to_utf16()
86 	else if (s[spos] < 0xf0) {  in utf8_to_utf16()
87 	    if (spos >= src_len-2  in utf8_to_utf16()
88 		|| !IS_CONT(s[spos+1]) || !IS_CONT(s[spos+2])) {  in utf8_to_utf16()
89 		spos++;  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()
95 	    spos += 3;  in utf8_to_utf16()
106 	    if (spos >= src_len-3 || !IS_CONT(s[spos+1])  in utf8_to_utf16()
107 		|| !IS_CONT(s[spos+2]) || !IS_CONT(s[spos+3])) {  in utf8_to_utf16()
108 		spos++;  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()
115 	    spos += 4;  in utf8_to_utf16()
146     uint16_t spos, dpos;  in utf16_to_utf8()  local
154     for (spos=0; spos<src_len; spos++) {  in utf16_to_utf8()
155 	if (src[spos] < 0x80) {  in utf16_to_utf8()
157 	    ADD_BYTE(src[spos]);  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()
172 	    spos++;  in utf16_to_utf8()
174 	    c = (((src[spos]&0x3ff) << 10) | (src[spos+1]&0x3ff)) + 0x10000;  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()