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0ff6f4313d
* Fix API of r_utf16le_decode to be consistent with r_utf8_decode * Fix braces and else-after-return * Don't use r_mem_mem * Fix bogus last char at max string length
31 lines
610 B
C
31 lines
610 B
C
/* radare2 - LGPL - Copyright 2017 - kazarmy */
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#include <r_types.h>
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#include <r_util.h>
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/* Convert an UTF-16LE buf into a unicode RRune */
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R_API int r_utf16le_decode(const ut8 *ptr, int ptrlen, RRune *ch) {
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if (ptrlen < 1) {
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return 0;
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}
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if (ptrlen > 3 && (ptr[1] & 0xdc) == 0xd8 && (ptr[3] & 0xdc) == 0xdc) {
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if (ch) {
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*ch = ((ptr[1] & 3) << 24 | ptr[0] << 16 | (ptr[3] & 3) << 8 | ptr[2]) + 0x10000;
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}
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return 4;
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}
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if (ptrlen > 1 && ptr[1]) {
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if (ch) {
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*ch = ptr[1] << 8 | ptr[0];
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}
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return 2;
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}
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if (ptrlen > 1) {
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if (ch) {
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*ch = (ut32)ptr[0];
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}
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return 1;
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}
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return 0;
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}
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