Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include <inttypes.h>
#include <string.h>
#include "entities.h"
#include "fmt.h"
#include "textcode.h"
#include "haveinline.h"
#include "scan.h"
#include "case.h"
#include "str.h"
static const char* lookup(size_t ofs,const char* t) {
if (ofs>entities.tab[0]) return 0;
while (ofs<entities.tab[0]) {
unsigned char ch=entities.tab[ofs]&0xff;
if (ch==(unsigned char)*t || (!ch && *t==';')) {
if (!ch || *t==';')
return entities.data+(entities.tab[ofs]>>8);
else
return lookup(entities.tab[ofs]>>8,t+1);
} else
++ofs;
if (!ch) break;
}
return NULL;
}
size_t scan_html(const char *src,char *dest,size_t *destlen) {
register const unsigned char* s=(const unsigned char*) src;
size_t written=0,i;
for (i=0; s[i]; ++i) {
if (s[i]=='&') {
const char* utf8;
if (s[i+1]=='#') {
unsigned long l;
size_t j;
if ((s[i+2]&~32)=='X') {
j=scan_xlong(src+i+3,&l);
if (!j) j+=3;
} else {
j=scan_ulong(src+i+2,&l);
if (!j) j+=3;
}
if (s[i+j]==';') {
i+=j;
written+=fmt_utf8(dest+written,l);
} else {
dest[written++]='&';
}
continue;
}
utf8=lookup(1,src+i+1);
if (utf8) {
size_t l=strlen(utf8);
memcpy(dest+written,utf8,l);
written+=l;
i+=2+str_chr(src+i+2,';');
continue;
} else
dest[written]='&';
} else if (s[i]=='<') {
if (case_starts((const char*)s+i+1,"br>")) {
dest[written]='\n';
i+=3;
} else if (case_starts((const char*)s+i+1,"p>")) {
dest[written]='\n'; ++written;
dest[written]='\n';
i+=3;
}
} else
dest[written]=s[i];
++written;
}
*destlen=written;
return i;
}