Implemented recognition of comments in PDDL.

include/plasp/LanguageDetection.h

@@ -15,12 +15,8 @@ namespace plasp
 
 Language::Type detectLanguage(utils::Parser &parser)
 {
-	// PDDL contains sections starting with "(define"
-	if (parser.probe<std::string>("(") && parser.probe<std::string>("define"))
-	{
-		parser.seek(std::ios::beg);
-		return Language::Type::PDDL;
-	}
+	parser.setCaseSensitive(false);
+	parser.skipWhiteSpace();
 
 	// SAS begins with "begin_version"
 	if (parser.probe<std::string>("begin"))
@@ -29,6 +25,20 @@ Language::Type detectLanguage(utils::Parser &parser)
 		return Language::Type::SAS;
 	}
 
+	// Skip potential PDDL comments
+	while (parser.currentCharacter() == ';')
+	{
+		parser.skipLine();
+		parser.skipWhiteSpace();
+	}
+
+	// PDDL contains sections starting with "(define"
+	if (parser.probe<std::string>("(") && parser.probe<std::string>("define"))
+	{
+		parser.seek(std::ios::beg);
+		return Language::Type::PDDL;
+	}
+
 	parser.seek(std::ios::beg);
 	return Language::Type::Unknown;
 }

include/plasp/utils/Parser.h

@@ -62,6 +62,8 @@ class Parser
 		void advance();
 		bool atEndOfStream() const;
 
+		void removeComments(const std::string &startSequence, const std::string &endSequence, bool removeEnd);
+
 		template<typename Type>
 		Type parse();