Fixed parsing issue with unexpected whitespaces in SAS files.

include/plasp/pddl/Parser.h

@@ -27,6 +27,11 @@ class PDDLParserPolicy
 			return std::iswspace(c);
 		}
 
+		static bool isBlankCharacter(char c)
+		{
+			return std::isblank(c);
+		}
+
 		static bool isIdentifierCharacter(char c)
 		{
 			return c != '?'

include/plasp/utils/Parser.h

@@ -72,6 +72,7 @@ class Parser: public Stream, public ParserPolicy
 		std::string parseLine();
 
 		void skipWhiteSpace();
+		void skipBlankSpace();
 		void skipLine();
 
 	private:
@@ -124,6 +125,17 @@ void Parser<ParserPolicy>::skipWhiteSpace()
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
+template<class ParserPolicy>
+void Parser<ParserPolicy>::skipBlankSpace()
+{
+	check();
+
+	while (!atEnd() && ParserPolicy::isBlankCharacter(currentCharacter()))
+		advance();
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
 template<class ParserPolicy>
 void Parser<ParserPolicy>::skipLine()
 {

include/plasp/utils/ParserPolicy.h

@@ -27,6 +27,11 @@ class CaseSensitiveParserPolicy
 			return std::iswspace(c);
 		}
 
+		static bool isBlankCharacter(char c)
+		{
+			return std::isblank(c);
+		}
+
 		static bool isIdentifierCharacter(char c)
 		{
 			return std::isgraph(c);
@@ -48,6 +53,11 @@ class CaseInsensitiveParserPolicy
 			return std::iswspace(c);
 		}
 
+		static bool isBlankCharacter(char c)
+		{
+			return std::isblank(c);
+		}
+
 		static bool isIdentifierCharacter(char c)
 		{
 			return std::isgraph(c);