miloignis/kraken
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Changed Parser to be a virtual base class, inherited by LALRParser

Browse Source
This commit is contained in:
Nathan Braswell
2013-07-30 01:42:51 -04:00
parent 733fe1c08d
commit 3fba45591b
6 changed files with 128 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
include/LALRParser.h Normal file
View File

@@ -0,0 +1,39 @@
#ifndef LALRPARSER_H
#define LALRPARSER_H
#include "Parser.h"
/*
#include "util.h"
#include "ParseRule.h"
#include "ParseAction.h"
#include "Symbol.h"
#include "State.h"
#include "StringReader.h"
#include "Lexer.h"
#include "NodeTree.h"
#include "Table.h"
#include <map>
#include <vector>
#include <algorithm>
#include <stack>
#include <string>
#include <iostream>
*/
class LALRParser: public Parser {
public:
LALRParser();
~LALRParser();
//using Parser::loadGrammer;
//Defaults in parser are mostly LALR, so we only need to
//implement the actual parsing function
NodeTree<Symbol*>* parseInput(std::string inputString);
private:
//Nothing
};
#endif

30
include/Parser.h
View File

@@ -23,24 +23,24 @@ class Parser {
Parser();
~Parser();
void loadGrammer(std::string grammerInputString);
std::vector<Symbol*>* firstSet(Symbol* token);
std::vector<Symbol*>* firstSet(Symbol* token, std::vector<Symbol*> &avoidList);
std::vector<Symbol*>* incrementiveFollowSet(ParseRule* rule);
void createStateSet();
void closure(State* state);
void addStates(std::vector< State* >* stateSets, State* state);
int stateNum(State* state);
std::string stateSetToString();
NodeTree<Symbol*>* parseInput(std::string inputString);
std::string grammerToString();
std::string grammerToDOT();
virtual void loadGrammer(std::string grammerInputString);
virtual void createStateSet();
virtual std::string stateSetToString();
virtual NodeTree<Symbol*>* parseInput(std::string inputString) = 0;
virtual std::string grammerToString();
virtual std::string grammerToDOT();
std::string tableToString();
private:
protected:
std::vector<Symbol*>* firstSet(Symbol* token);
std::vector<Symbol*>* firstSet(Symbol* token, std::vector<Symbol*> &avoidList);
std::vector<Symbol*>* incrementiveFollowSet(ParseRule* rule);
virtual void closure(State* state);
virtual void addStates(std::vector< State* >* stateSets, State* state);
int stateNum(State* state);
StringReader reader;
Lexer lexer;
std::map<std::string, Symbol*> symbols;