1*40ef9009SDavid du Colombier /*
2*40ef9009SDavid du Colombier * The authors of this software are Rob Pike and Ken Thompson.
3*40ef9009SDavid du Colombier * Copyright (c) 2002 by Lucent Technologies.
4*40ef9009SDavid du Colombier * Permission to use, copy, modify, and distribute this software for any
5*40ef9009SDavid du Colombier * purpose without fee is hereby granted, provided that this entire notice
6*40ef9009SDavid du Colombier * is included in all copies of any software which is or includes a copy
7*40ef9009SDavid du Colombier * or modification of this software and in all copies of the supporting
8*40ef9009SDavid du Colombier * documentation for such software.
9*40ef9009SDavid du Colombier * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
10*40ef9009SDavid du Colombier * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
11*40ef9009SDavid du Colombier * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
12*40ef9009SDavid du Colombier * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
13*40ef9009SDavid du Colombier */
14*40ef9009SDavid du Colombier #include <stdarg.h>
15*40ef9009SDavid du Colombier #include <string.h>
16*40ef9009SDavid du Colombier #include "utf.h"
17*40ef9009SDavid du Colombier #include "utfdef.h"
18*40ef9009SDavid du Colombier
19*40ef9009SDavid du Colombier char*
utfecpy(char * to,char * e,char * from)20*40ef9009SDavid du Colombier utfecpy(char *to, char *e, char *from)
21*40ef9009SDavid du Colombier {
22*40ef9009SDavid du Colombier char *end;
23*40ef9009SDavid du Colombier
24*40ef9009SDavid du Colombier if(to >= e)
25*40ef9009SDavid du Colombier return to;
26*40ef9009SDavid du Colombier end = memccpy(to, from, '\0', e - to);
27*40ef9009SDavid du Colombier if(end == nil){
28*40ef9009SDavid du Colombier end = e-1;
29*40ef9009SDavid du Colombier while(end>to && (*--end&0xC0)==0x80)
30*40ef9009SDavid du Colombier ;
31*40ef9009SDavid du Colombier *end = '\0';
32*40ef9009SDavid du Colombier }else{
33*40ef9009SDavid du Colombier end--;
34*40ef9009SDavid du Colombier }
35*40ef9009SDavid du Colombier return end;
36*40ef9009SDavid du Colombier }
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