--- a/src/Parser.h Sun Mar 30 21:35:06 2014 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,258 +0,0 @@
-/*
- Copyright 2012-2014 Santeri Piippo
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- 3. The name of the author may not be used to endorse or promote products
- derived from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef BOTC_PARSER_H
-#define BOTC_PARSER_H
-
-#include <stdio.h>
-#include "Main.h"
-#include "Commands.h"
-#include "LexerScanner.h"
-#include "Tokens.h"
-
-class DataBuffer;
-class Lexer;
-class Variable;
-
-// ============================================================================
-// Mark types
-//
-named_enum MarkType
-{
- MARK_Label,
- MARK_If,
- MARK_Internal, // internal structures
-};
-
-// ============================================================================
-// Scope types
-//
-named_enum ScopeType
-{
- SCOPE_Unknown,
- SCOPE_If,
- SCOPE_While,
- SCOPE_For,
- SCOPE_Do,
- SCOPE_Switch,
- SCOPE_Else,
-};
-
-named_enum AssignmentOperator
-{
- ASSIGNOP_Assign,
- ASSIGNOP_Add,
- ASSIGNOP_Subtract,
- ASSIGNOP_Multiply,
- ASSIGNOP_Divide,
- ASSIGNOP_Modulus,
- ASSIGNOP_Increase,
- ASSIGNOP_Decrease,
-};
-
-named_enum Writability
-{
- WRITE_Mutable, // normal read-many-write-many variable
- WRITE_Const, // write-once const variable
- WRITE_Constexpr, // const variable whose value is known to compiler
-};
-
-// =============================================================================
-//
-// Parser mode: where is the parser at?
-//
-named_enum ParserMode
-{
- PARSERMODE_TopLevel, // at top level
- PARSERMODE_Event, // inside event definition
- PARSERMODE_MainLoop, // inside mainloop
- PARSERMODE_Onenter, // inside onenter
- PARSERMODE_Onexit, // inside onexit
-};
-
-// ============================================================================
-//
-struct Variable
-{
- String name;
- String statename;
- DataType type;
- int index;
- Writability writelevel;
- int value;
- String origin;
- bool isarray;
-
- inline bool IsGlobal() const
- {
- return statename.isEmpty();
- }
-};
-
-// ============================================================================
-//
-struct CaseInfo
-{
- ByteMark* mark;
- int number;
- DataBuffer* data;
-};
-
-// ============================================================================
-//
-// Meta-data about scopes
-//
-struct ScopeInfo
-{
- ByteMark* mark1;
- ByteMark* mark2;
- ScopeType type;
- DataBuffer* buffer1;
- int globalVarIndexBase;
- int globalArrayIndexBase;
- int localVarIndexBase;
-
- // switch-related stuff
- List<CaseInfo>::Iterator casecursor;
- List<CaseInfo> cases;
- List<Variable*> localVariables;
- List<Variable*> globalVariables;
- List<Variable*> globalArrays;
-};
-
-// ============================================================================
-//
-class BotscriptParser
-{
- PROPERTY (public, bool, isReadOnly, setReadOnly, STOCK_WRITE)
-
- public:
- enum EReset
- {
- eNoReset,
- SCOPE_Reset,
- };
-
- BotscriptParser();
- ~BotscriptParser();
- void parseBotscript (String fileName);
- DataBuffer* parseCommand (CommandInfo* comm);
- DataBuffer* parseAssignment (Variable* var);
- AssignmentOperator parseAssignmentOperator();
- String parseFloat();
- void pushScope (EReset reset = SCOPE_Reset);
- DataBuffer* parseStatement();
- void addSwitchCase (DataBuffer* b);
- void checkToplevel();
- void checkNotToplevel();
- bool tokenIs (ETokenType a);
- String getTokenString();
- String describePosition() const;
- void writeToFile (String outfile);
- Variable* findVariable (const String& name);
- bool isInGlobalState() const;
- void suggestHighestVarIndex (bool global, int index);
- int getHighestVarIndex (bool global);
-
- inline ScopeInfo& scope (int offset)
- {
- return m_scopeStack[m_scopeCursor - offset];
- }
-
- inline int numEvents() const
- {
- return m_numEvents;
- }
-
- inline int numStates() const
- {
- return m_numStates;
- }
-
- private:
- // The main buffer - the contents of this is what we
- // write to file after parsing is complete
- DataBuffer* m_mainBuffer;
-
- // onenter buffer - the contents of the onenter {} block
- // is buffered here and is merged further at the end of state
- DataBuffer* m_onenterBuffer;
-
- // Mainloop buffer - the contents of the mainloop {} block
- // is buffered here and is merged further at the end of state
- DataBuffer* m_mainLoopBuffer;
-
- // Switch buffer - switch case data is recorded to this
- // buffer initially, instead of into main buffer.
- DataBuffer* m_switchBuffer;
-
- Lexer* m_lexer;
- int m_numStates;
- int m_numEvents;
- ParserMode m_currentMode;
- String m_currentState;
- bool m_isStateSpawnDefined;
- bool m_gotMainLoop;
- int m_scopeCursor;
- bool m_isElseAllowed;
- int m_highestGlobalVarIndex;
- int m_highestStateVarIndex;
- int m_numWrittenBytes;
- List<ScopeInfo> m_scopeStack;
- int m_zandronumVersion;
- bool m_defaultZandronumVersion;
-
- DataBuffer* currentBuffer();
- void parseStateBlock();
- void parseEventBlock();
- void parseMainloop();
- void parseOnEnterExit();
- void parseVar();
- void parseGoto();
- void parseIf();
- void parseElse();
- void parseWhileBlock();
- void parseForBlock();
- void parseDoBlock();
- void parseSwitchBlock();
- void parseSwitchCase();
- void parseSwitchDefault();
- void parseBreak();
- void parseContinue();
- void parseBlockEnd();
- void parseLabel();
- void parseEventdef();
- void parseFuncdef();
- void parseUsing();
- void writeMemberBuffers();
- void writeStringTable();
- DataBuffer* parseExpression (DataType reqtype, bool fromhere = false);
- DataHeader getAssigmentDataHeader (AssignmentOperator op, Variable* var);
-};
-
-#endif // BOTC_PARSER_H