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#include <iostream>

#include <iomanip>

#include <cstddef>

#include <cstdlib>



#include "ValueLoader.h"

#include "TemplateLoader.h"

#include "Generator.h"



using namespace std;



///////////////////////////////////////////////////////////////////////

// Common data

const string appName = "mist_gen";



///////////////////////////////////////////////////////////////////////

// Output information about the usage of the tool

static void

usage();



///////////////////////////////////////////////////////////////////////

int 

main(int argc, char* argv[])

{

    if (argc < 3) {

        usage();

        return EXIT_SUCCESS;

    }

    string dataFile = argv[2];

    string templatePath = argv[1];

    

    string document;

    

    try {

        // Load data (values of the parameters)

        CValueLoader valueLoader;

        valueLoader.loadValues(dataFile);

        

        // Load the templates

        CTemplateLoader templateLoader;

        templateLoader.loadValues(templatePath);

        

        // Generate the resulting document

        CGenerator generator;

        generator.generateDocument(valueLoader.getValueGroups(),

            templateLoader.getDocumentGroup(),

            templateLoader.getBlockGroup(),

            document);

    } 

    catch (bad_alloc& e) {

        cerr << "Error: not enough memory" << endl;

        return EXIT_FAILURE;

    }

    catch (CValueLoader::CLoadingError& e) {

        cerr << "Failed to load " << dataFile << ": " << e.what() << endl;

        return EXIT_FAILURE;

    }

    catch (CTemplateLoader::CLoadingError& e) {

        cerr << "Failed to load templates from " << templatePath 

             << ": " << e.what() << endl;

        return EXIT_FAILURE;

    }

    catch (runtime_error& e) {

        cerr << "Error: " << e.what() << endl;

        return EXIT_FAILURE;

    }

    

    // Output the result

    cout << document.c_str();

    return EXIT_SUCCESS;

}



///////////////////////////////////////////////////////////////////////

static void 

usage()

{

    cout << "Usage: " << appName << " "

         << "<template directory> " 

         << "<data file>" << endl;

    return;

}