1 #include <u.h> 2 #include <libc.h> 3 #include <bin.h> 4 #include <httpd.h> 5 6 /* 7 * go from http with latin1 escapes to utf, 8 * we assume that anything >= Runeself is already in utf 9 */ 10 char * httpunesc(HConnect * cc,char * s)11httpunesc(HConnect *cc, char *s) 12 { 13 char *t, *v; 14 int c; 15 Htmlesc *e; 16 17 v = halloc(cc, UTFmax*strlen(s) + 1); 18 for(t = v; c = *s;){ 19 if(c == '&'){ 20 if(s[1] == '#' && s[2] && s[3] && s[4] && s[5] == ';'){ 21 c = atoi(s+2); 22 if(c < Runeself){ 23 *t++ = c; 24 s += 6; 25 continue; 26 } 27 if(c < 256 && c >= 161){ 28 e = &htmlesc[c-161]; 29 t += runetochar(t, &e->value); 30 s += 6; 31 continue; 32 } 33 } else { 34 for(e = htmlesc; e->name != nil; e++) 35 if(strncmp(e->name, s, strlen(e->name)) == 0) 36 break; 37 if(e->name != nil){ 38 t += runetochar(t, &e->value); 39 s += strlen(e->name); 40 continue; 41 } 42 } 43 } 44 *t++ = c; 45 s++; 46 } 47 *t = 0; 48 return v; 49 } 50