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#include <u.h>
#include <libc.h>
#include <bin.h>
#include <httpd.h>
/*
* go from http with latin1 escapes to utf,
* we assume that anything >= Runeself is already in utf
*/
char *
httpunesc(HConnect *cc, char *s)
{
char *t, *v;
int c;
Htmlesc *e;
v = halloc(cc, UTFmax*strlen(s) + 1);
for(t = v; c = *s;){
if(c == '&'){
if(s[1] == '#' && s[2] && s[3] && s[4] && s[5] == ';'){
c = atoi(s+2);
if(c < Runeself){
*t++ = c;
s += 6;
continue;
}
if(c < 256 && c >= 161){
e = &htmlesc[c-161];
t += runetochar(t, &e->value);
s += 6;
continue;
}
} else {
for(e = htmlesc; e->name != nil; e++)
if(strncmp(e->name, s, strlen(e->name)) == 0)
break;
if(e->name != nil){
t += runetochar(t, &e->value);
s += strlen(e->name);
continue;
}
}
}
*t++ = c;
s++;
}
*t = 0;
return v;
}
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