regex_test.cpp

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#include "string_manip.h"

#include "op_regex.h"

#include <iostream>
#include <fstream>

#include <cstdlib>

using namespace std;

static int nr_error = 0;

static void do_test(istream& fin)
{
    regular_expression_replace rep;

    setup_regex(rep, "../stl.pat");

    string test, expect, last;
    bool first = true;
    while (getline(fin, last)) {
        last = trim(last);
        if (last.length() == 0 || last[0] == '#')
            continue;

        if (first) {
            test = last;
            first = false;
        } else {
            expect = last;
            first = true;
            string str(test);
            rep.execute(str);
            if (str != expect) {
                cerr << "mistmatch: test, expect, returned\n"
                     << '"' << test << '"' << endl
                     << '"' << expect << '"' << endl
                     << '"' << str << '"' << endl;
                ++nr_error;
            }
        }
    }

    if (!first)
        cerr << "input file ill formed\n";
}

int main(int argc, char * argv[])
{
    try {
        if (argc > 1) {
            for (int i = 1; i < argc; ++i) {
                ifstream fin(argv[i]);
                do_test(fin);
            }
        } else {
            ifstream fin("mangled-name");
            if (!fin) {
                cerr << "Unable to open input test "
                     << "\"mangled_name\"\n" << endl;
                exit(EXIT_FAILURE);
            }
            do_test(fin);
        }
    }
    catch (bad_regex const & e) {
        cerr << "bad_regex " << e.what() << endl;
        return EXIT_FAILURE;
    }
    catch (exception const & e) {
        cerr << "exception: " << e.what() << endl;
        return EXIT_FAILURE;
    }

    return nr_error ? EXIT_FAILURE : EXIT_SUCCESS;
}