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#include <u.h>
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#include <libc.h>
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char*
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utfecpy(char *to, char *e, char *from)
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{
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char *end;
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if(to >= e)
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return to;
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end = memccpy(to, from, '\0', e - to);
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if(end == nil){
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end = e-1;
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while(end>to && (*--end&0xC0)==0x80)
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;
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*end = '\0';
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}else{
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end--;
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}
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return end;
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}
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