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24 lines
607 B
C
24 lines
607 B
C
#include "fmt.h"
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#include "textcode.h"
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#include "str.h"
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#include "haveinline.h"
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size_t fmt_xml(char* dest,const char* src,size_t len) {
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register const unsigned char* s=(const unsigned char*) src;
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size_t written=0,i;
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const char* seq;
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for (i=0; i<len; ++i) {
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switch (s[i]) {
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case '&': seq="&"; goto doit;
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case '<': seq="<";
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doit:
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written+=fmt_str(dest?dest+written:0,seq);
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break;
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default: if (dest) dest[written]=s[i]; ++written; break;
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}
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/* in case someone gives us malicious input */
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if (written>((size_t)-1)/2) return (size_t)-1;
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}
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return written;
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}
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