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26 lines
581 B
C

#include "fmt.h"
#include "textcode.h"
#include "haveinline.h"
static inline int tohex(char c) {
return c>9?c-10+'A':c+'0';
}
unsigned int fmt_quotedprintable(char* dest,const char* src,unsigned int len) {
register const unsigned char* s=(const unsigned char*) src;
unsigned long written=0,i;
for (i=0; i<len; ++i) {
if (s[i]&0x80 || s[i]=='=') {
if (dest) {
dest[written]='=';
dest[written+1]=tohex(s[i]>>4);
dest[written+2]=tohex(s[i]&15);
}
written+=3;
} else {
if (dest) dest[written]=s[i]; ++written;
}
}
return written;
}