added: std::wstring Request::subdomain

support for subdomains



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@828 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/misc.h

@@ -711,4 +711,49 @@ void RemovePostFileTmp(PostFileTab & post_file_tab);
 
 
 
+/*
+	short_str is removed from long_str (and a last dots are removed too)
+	and the result is stored in out
+
+	sample:
+	short_str: "mydomain.tld"
+	long_str:  "www.subdomain.mydomain.tld"
+	out:       "www.subdomain"
+
+	short_str: "mydomain.tld"
+	long_str:  "otherdifferentstring"
+	out:       ""
+*/
+template<class StringType1, class StringType2, class StringType3>
+void CreateSubdomain(const StringType1 * short_str, const StringType2 * long_str, StringType3 & out)
+{
+size_t i1, i2;
+
+	out.clear();
+
+	for(i1=0 ; short_str[i1] != 0 ; ++i1);
+	for(i2=0 ; long_str[i2]  != 0 ; ++i2);
+
+	if( i1 >= i2 )
+		return;
+
+	// i1 is < i2
+
+	while( i1-- > 0 )
+	{
+		i2 -= 1;
+
+		if( short_str[i1] != long_str[i2] )
+			return; // short_str is not a last substring of long_str
+	}
+
+	while( i2>0 && long_str[i2-1] == '.' )
+		i2 -= 1;
+
+	for(i1=0 ; i1 < i2 ; ++i1)
+		out += long_str[i1];
+}
+
+
+
 #endif