Refactored class diagram generator to use identifiers for types

src/util/util.cc

@@ -19,6 +19,23 @@
 
 namespace clanguml {
 namespace util {
+
+const std::string WHITESPACE = " \n\r\t\f\v";
+
+std::string ltrim(const std::string &s)
+{
+    size_t start = s.find_first_not_of(WHITESPACE);
+    return (start == std::string::npos) ? "" : s.substr(start);
+}
+
+std::string rtrim(const std::string &s)
+{
+    size_t end = s.find_last_not_of(WHITESPACE);
+    return (end == std::string::npos) ? "" : s.substr(0, end + 1);
+}
+
+std::string trim(const std::string &s) { return rtrim(ltrim(s)); }
+
 std::vector<std::string> split(std::string str, std::string delimiter)
 {
     std::vector<std::string> result;