Shell-Development-Project/parser.cpp at mycode · Shell-Development-Project/Shell-Development-Project · GitHub

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#include <iostream>

#include <vector>

#include <string>

#include <map>

#include <algorithm>

#include <stdio.h>

#include <string.h>

#include <math.h>

#include <stdlib.h>

#include <unistd.h>

#include <boost/filesystem.hpp> // -lboost_system: Write this while compiling, this prevents

// the linker error.

#include <boost/algorithm/string/replace.hpp>

#include "lexical.h"

#include "syntax.h"

#include "processctrl.h"

int cmdSyntaxAnalysis(string cmd)

{

std::vector <std::string> tokenStream;

std::vector <char*> tokens;

std::unordered_map <key, value> table;

int flag;

int whichTypeofExecution = 0;

int pipeCount = 0;

cmdLexicalAnalysis(cmd, tokenStream, tokens, pipeCount);

constructTable(table);

if(! tokenStream.empty())

tokenStream.push_back("<$>");

// tokenStream.push_back("<string>");

// tokenStream.push_back("<unix_command>");

flag = parser(table, tokenStream);

if (flag == 1)

{

try

{

processctrl(cmd, tokens, pipeCount, whichTypeofExecution);

// processctrl(cmd, tokens);

}

catch(int x)

{

std::cout << "Maybe memory is not available for one more process...:-(" << std::endl;

}

return 0;

}

Shell-Development-Project/parser.cpp at mycode · Shell-Development-Project/Shell-Development-Project · GitHub

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