changed: in SpaceParser: now we do not parse special characters when reading commentaries

so we can parse:
         # such a \n string
         beforehand this \n was treated as a new line character
         and the parser was returning syntax error when reading above 'string'



git-svn-id: svn://ttmath.org/publicrep/pikotools/trunk@432 e52654a7-88a9-db11-a3e9-0013d4bc506e

space/spaceparser.h

@@ -140,15 +140,25 @@ public:
 
 
 	/*
-		'\' character is used to escape other characters in a quoted string
+		'\' character is used to escape other characters
 		so "some \t t\"ext" will produce "some t t"ext"
 		default: true
+		special characters:
+		\0  - 0 (zero code point)
+		\t  - tabulator (9 code point)
+		\r  - carriage return (13 code point)
+		\n	- a new line character (10 code point)
+		in other cases we return the last character so \Z gives Z and \\ gives one \
+		escape character are not used in commentaries
+		so you can write:
+		# this is my comment \n but this was not a new line
 	*/
 	void UseEscapeChar(bool escape);
 
 
 	/*
 		if true then the input file or string (char* or std::string) is treated as UTF-8
+		default: true
 	*/
 	void UTF8(bool utf);
 
@@ -287,6 +297,12 @@ private:
 	bool use_escape_char;
 
 
+	/*
+		true if we are reading the commentary (#)
+		this is to avoid parsing escape characters in the commentary
+	*/
+	bool reading_commentary;
+
 	std::string afile_name;
 
 	void Parse();
@@ -314,9 +330,10 @@ private:
 	int  ReadCharNoEscape();
 	int  ReadChar();
 	bool IsWhite(int c);
-	void SkipWhite();
+	void SkipWhite(bool skip_lines = false);
 	void SkipWhiteLines();
 	void SkipLine();
+	void SkipComment();
 	void Trim(std::wstring & s);
 
 };