split by regexp and [rl]tring added

ml_string.cpp

@@ -30,6 +30,29 @@ bool regexp_search(const std::string &where, const std::string &regex_str) {
 	return false;
 }
 
+std::vector<std::string> regexp_strsplit(const std::string &string_to_split, const std::string &rgx_str) {
+	std::vector<std::string> elems;
+
+	std::regex rgx(rgx_str);
+	std::sregex_token_iterator iter(string_to_split.begin(), string_to_split.end(), rgx, -1);
+	std::sregex_token_iterator end;
+
+	for (; iter != end; ++iter)
+		elems.push_back(*iter);
+
+	return elems;
+}
+
+std::string trim(std::string s, const std::string &chars_to_trim, const std::string &rltrim) {
+	if (rltrim == "ltrim" || rltrim == "trim")
+		s.erase(0, s.find_first_not_of(chars_to_trim));
+	
+	if (rltrim == "rtrim" || rltrim == "trim")
+		s.erase(s.find_last_not_of(chars_to_trim)+1);
+
+	return s;
+}
+
 std::string string_padd(const std::string &str, int pad_len, char fill_char, bool from_right) {
 	int str_len = str.length();