Pull out table to it's own Table class in prep for adding RNGLR algorithm.

This commit is contained in:
Nathan Braswell
2013-07-16 11:15:58 -04:00
parent f84657f1ed
commit 726ead0455
5 changed files with 165 additions and 131 deletions

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@@ -9,6 +9,7 @@
#include "StringReader.h"
#include "Lexer.h"
#include "NodeTree.h"
#include "Table.h"
#include <map>
#include <vector>
@@ -25,14 +26,13 @@ class Parser {
void loadGrammer(std::string grammerInputString);
std::vector<Symbol*>* firstSet(Symbol* token);
std::vector<Symbol*>* firstSet(Symbol* token, std::vector<Symbol*> &avoidList);
void printFirstSets();
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();
void addToTable(State* fromState, Symbol* tranSymbol, ParseAction* action);
ParseAction* getTable(int state, Symbol* token);
NodeTree* parseInput(std::string inputString);
std::string grammerToString();
@@ -53,8 +53,8 @@ class Parser {
//The nullSymbol, ditto with above. Also used in comparisons
Symbol* nullSymbol;
std::vector< std::vector<ParseAction*>* > table;
std::vector<Symbol*> symbolIndexVec;
Table table;
std::stack<int> stateStack;
std::stack<Symbol*> symbolStack;

27
include/Table.h Normal file
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@@ -0,0 +1,27 @@
#include "util.h"
#include "ParseRule.h"
#include "ParseAction.h"
#include "Symbol.h"
#include "State.h"
#ifndef TABLE_H
#define TABLE_H
class Table {
public:
Table();
~Table();
void setSymbols(Symbol* EOFSymbol, Symbol* nullSymbol);
void add(int stateNum, Symbol* tranSymbol, ParseAction* action);
ParseAction* get(int state, Symbol* token);
std::string toString();
private:
std::vector< std::vector<ParseAction*>* > table;
std::vector<Symbol*> symbolIndexVec;
//The EOFSymbol, a pointer because of use in table, etc
Symbol* EOFSymbol;
//The nullSymbol, ditto with above. Also used in comparisons
Symbol* nullSymbol;
};
#endif