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128 lines
2.8 KiB
128 lines
2.8 KiB
/*
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Copyright (C) 2003 by Walter Schreppers
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Copyright (C) 2004 by Cies Breijs
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This program is free software; you can redistribute it and/or
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modify it under the terms of version 2 of the GNU General Public
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License as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _PARSER_H_
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#define _PARSER_H_
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#include <tqobject.h>
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#include "lexer.h"
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#include "treenode.h"
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class Parser : public TQObject
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{
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Q_OBJECT
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public:
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Parser(TQTextIStream& in);
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virtual ~Parser();
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void parse();
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TreeNode* getTree() const { return tree; }
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signals:
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void ErrorMsg(Token&, const TQString&, uint code);
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private:
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bool isAddOp(Token);
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bool isMulOp(Token);
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void getToken();
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void matchToken(int tokenType);
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void appendParameters(TreeNode* node);
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void Error(Token&, const TQString& s, uint code);
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TreeNode* Program();
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TreeNode* ParamList();
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TreeNode* Block();
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TreeNode* Statement();
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TreeNode* ExternalRun();
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TreeNode* getId();
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TreeNode* signedFactor();
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TreeNode* Factor();
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TreeNode* Term();
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TreeNode* Expression();
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TreeNode* Assignment(Token);
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TreeNode* FunctionCall(Token);
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TreeNode* Other();
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TreeNode* While();
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TreeNode* For();
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TreeNode* ForEach();
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TreeNode* If();
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TreeNode* Return();
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TreeNode* Break();
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TreeNode* Clear();
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TreeNode* Go();
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TreeNode* GoX();
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TreeNode* GoY();
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TreeNode* Forward();
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TreeNode* Backward();
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TreeNode* Direction();
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TreeNode* TurnLeft();
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TreeNode* TurnRight();
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TreeNode* Center();
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TreeNode* SetPenWidth();
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TreeNode* PenUp();
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TreeNode* PenDown();
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TreeNode* SetFgColor();
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TreeNode* SetBgColor();
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TreeNode* ResizeCanvas();
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TreeNode* SpriteShow();
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TreeNode* SpriteHide();
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TreeNode* SpritePress();
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TreeNode* SpriteChange();
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TreeNode* Message();
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TreeNode* InputWindow();
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TreeNode* Print();
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TreeNode* FontType();
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TreeNode* FontSize();
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TreeNode* Repeat();
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TreeNode* Random();
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TreeNode* Wait();
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TreeNode* WrapOn();
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TreeNode* WrapOff();
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TreeNode* Reset();
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TreeNode* LineBreak();
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TreeNode* EndOfFile();
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TreeNode* Learn();
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//private locals
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Lexer *lexer;
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TreeNode *tree;
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Token currentToken;
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Token preservedToken; // to preserve the currentToken so it wont get lost
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uint row;
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uint col;
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TQStringList learnedFunctionList;
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};
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#endif // _PARSER_H_
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