chessEncode/main.cpp

#include <iostream>
#include <string>
#include <fstream>
#include <boost/filesystem.hpp>

using namespace std;
using namespace boost::filesystem;

string parsingGame(string word);
string parsingComment(string word);
string (*parsing)(string word);

//Âîçðàùàåò ñòðîêó áåç ïåðâîãî ñèìâîëà
string supStr(string str){
    return str.assign(str, 1, str.length() -1) + " ";
}

int main()
{
    setlocale(LC_ALL, "Russian");
    //cout << "HelloWorld" << endl;

    const string nameDirSrc = "âõîä.txt";
    const string nameDirDest = "âûõîä.txt";
    
    const path* dsrc = new path(nameDirSrc);
    const path* ddest = new path(nameDirDest);

    if(!exists(*dsrc)){
        cout << "Ôàéë (" + nameDirSrc + ") ÍÅ ñóùåñòâóåò!" << endl;
         return 1;
    }
    if(!exists(*ddest)){
        cout << "Ôàéë (" + nameDirDest + ") ÍÅ ñóùåñòâóåò!" << endl;
         return 1;
    }

    ifstream srcf{nameDirSrc};
    if(!srcf){
        cerr << "Îøèáêà ïðîò îòêðûòèè ôàéëà - " + nameDirSrc << endl;
        return 1;
    }

    ofstream outf{nameDirDest};
    if(!outf){
        cerr << "Îøèáêà ïðîò îòêðûòèè ôàéëà - " + nameDirDest << endl;
        return 1;
    }

    parsing = parsingGame;
    while(srcf){
        string out;
        srcf >> out;
        outf << parsing(out);
    }
    return 0;
}

string parsingGame(string word){
    switch (word[0]){
    case 'K': return "Êð" + supStr(word);
    case 'Q': return "Ô" + supStr(word);
    case 'R': return "Ë" + supStr(word);
    case 'N': return "Ê" + supStr(word);
    case 'B': return "Ñ" + supStr(word);
    case 'p': return "ï" + supStr(word);
    case '{': {
        parsing = parsingComment;
        return "";
    }
    default:
        if(word.back() == '.')
            return word;
        return word + " ";
    }
}

string parsingComment(string word){
    if(word[0] == '}') parsing = parsingGame;
    return "";
}