Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include "fmt.h"
#include "textcode.h"
#include "scan.h"
unsigned long scan_cescape(const char *src,char *dest,unsigned long *destlen) {
register const unsigned char* s=(const unsigned char*) src;
unsigned long written=0,i;
char c;
for (i=0; s[i]; ++i) {
if ((c=s[i])=='\\') {
switch (s[i+1]) {
case 'a': c='\a'; break;
case 'b': c='\b'; break;
case 'e': c=0x1b; break;
case 'f': c='\f'; break;
case 'n': c='\n'; break;
case 'r': c='\r'; break;
case 't': c='\t'; break;
case 'v': c='\v';
case '\\': break;
case 'x':
{
unsigned char a,b;
a=scan_fromhex(s[i+2]);
b=scan_fromhex(s[i+3]);
if (a<16 && b<16) {
c=(a<<4)+b;
i+=2;
}
}
break;
default:
--i;
}
++i;
}
dest[written]=c;
++written;
}
*destlen=written;
return i;
}