Move cgit_parse_query() from parsing.c to html.c as http_parse_querystring()

This is a generic http-function.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

parsing.c

@@ -8,55 +8,6 @@
 
 #include "cgit.h"
 
-char *convert_query_hexchar(char *txt)
-{
-	int d1, d2;
-	if (strlen(txt) < 3) {
-		*txt = '\0';
-		return txt-1;
-	}
-	d1 = hextoint(*(txt+1));
-	d2 = hextoint(*(txt+2));
-	if (d1<0 || d2<0) {
-		strcpy(txt, txt+3);
-		return txt-1;
-	} else {
-		*txt = d1 * 16 + d2;
-		strcpy(txt+1, txt+3);
-		return txt;
-	}
-}
-
-int cgit_parse_query(char *txt, configfn fn)
-{
-	char *t, *value = NULL, c;
-
-	if (!txt)
-		return 0;
-
-	t = txt = xstrdup(txt);
-
-	while((c=*t) != '\0') {
-		if (c=='=') {
-			*t = '\0';
-			value = t+1;
-		} else if (c=='+') {
-			*t = ' ';
-		} else if (c=='%') {
-			t = convert_query_hexchar(t);
-		} else if (c=='&') {
-			*t = '\0';
-			(*fn)(txt, value);
-			txt = t+1;
-			value = NULL;
-		}
-		t++;
-	}
-	if (t!=txt)
-		(*fn)(txt, value);
-	return 0;
-}
-
 /*
  * url syntax: [repo ['/' cmd [ '/' path]]]
  *   repo: any valid repo url, may contain '/'