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