added skip parser for skipping faulty lines

CMakeLists.txt

@@ -68,7 +68,7 @@ source_group(misc FILES ${MISC} ${MISC_HEADER})
     
 set(COMPILER components/compiler/errorhandler.cpp
     components/compiler/fileparser.cpp components/compiler/scriptparser.cpp
-    components/compiler/lineparser.cpp
+    components/compiler/lineparser.cpp components/compiler/skipparser.cpp
     components/compiler/parser.cpp components/compiler/scanner.cpp
     components/compiler/streamerrorhandler.cpp)
 file(GLOB COMPILER_HEADER components/compiler/*.hpp)

components/compiler/lineparser.cpp

@@ -6,6 +6,7 @@
 #include "scanner.hpp"
 #include "context.hpp"
 #include "errorhandler.hpp"
+#include "skipparser.hpp"
 
 namespace Compiler
 {
@@ -29,7 +30,12 @@ namespace Compiler
         if (mState==ShortState || mState==LongState || mState==FloatState)
         {
             if (!getContext().canDeclareLocals())
+            {
                 getErrorHandler().error ("local variables can't be declared in this context", loc);
+                SkipParser skip (getErrorHandler(), getContext());
+                scanner.scan (skip);
+                return false;
+            }
             
             std::cout << "declaring local variable: " << name << std::endl;
             mState = EndState;

components/compiler/skipparser.cpp

@@ -0,0 +1,41 @@
+
+#include "skipparser.hpp"
+
+#include "scanner.hpp"
+
+namespace Compiler
+{
+    SkipParser::SkipParser (ErrorHandler& errorHandler, Context& context)
+    : Parser (errorHandler, context)
+    {}
+
+    bool SkipParser::parseInt (int value, const TokenLoc& loc, Scanner& scanner)
+    {
+        return true;
+    }
+
+    bool SkipParser::parseFloat (float value, const TokenLoc& loc, Scanner& scanner)
+    {
+        return true;
+    }
+
+    bool SkipParser::parseName (const std::string& name, const TokenLoc& loc,
+        Scanner& scanner)
+    {
+        return true;
+    }
+
+    bool SkipParser::parseKeyword (int keyword, const TokenLoc& loc, Scanner& scanner)
+    {
+        return true;
+    }
+
+    bool SkipParser::parseSpecial (int code, const TokenLoc& loc, Scanner& scanner)
+    {
+        if (code==Scanner::S_newline)
+            return false;
+            
+        return true;
+    }
+}
+

components/compiler/skipparser.hpp

@@ -0,0 +1,42 @@
+#ifndef COMPILER_SKIPPARSER_H_INCLUDED
+#define COMPILER_SKIPPARSER_H_INCLUDED
+
+#include "parser.hpp"
+
+namespace Compiler
+{
+    // \brief Skip parser for skipping a line
+    //
+    // This parser is mainly intended for skipping the rest of a faulty line.
+    
+    class SkipParser : public Parser
+    {
+        public:
+           
+            SkipParser (ErrorHandler& errorHandler, Context& context);
+    
+            virtual bool parseInt (int value, const TokenLoc& loc, Scanner& scanner);
+            ///< Handle an int token.
+            /// \return fetch another token?
+
+            virtual bool parseFloat (float value, const TokenLoc& loc, Scanner& scanner);
+            ///< Handle a float token.
+            /// \return fetch another token?
+
+            virtual bool parseName (const std::string& name, const TokenLoc& loc,
+                Scanner& scanner);
+            ///< Handle a name token.
+            /// \return fetch another token?
+
+            virtual bool parseKeyword (int keyword, const TokenLoc& loc, Scanner& scanner);
+            ///< Handle a keyword token.
+            /// \return fetch another token?
+
+            virtual bool parseSpecial (int code, const TokenLoc& loc, Scanner& scanner);
+            ///< Handle a special character token.
+            /// \return fetch another token?
+    };
+}
+
+#endif
+