mirror of
https://github.com/boostorg/auto_index.git
synced 2025-05-09 15:14:03 +00:00
97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
//
|
|
// Copyright (c) 2005 João Abecasis
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See
|
|
// accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
|
|
#include <cstring>
|
|
#include <fstream>
|
|
#include <iostream>
|
|
#include <iterator>
|
|
#include <vector>
|
|
|
|
#include <boost/spirit/include/classic_primitives.hpp>
|
|
#include <boost/spirit/include/classic_scanner.hpp>
|
|
|
|
namespace spirit = boost::spirit::classic;
|
|
|
|
typedef std::istream_iterator<char, char> iterator;
|
|
typedef spirit::scanner<iterator> scanner;
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
std::vector<char*> args;
|
|
bool usage_error = false;
|
|
|
|
for (int i = 1; i < argc; ++i) {
|
|
if (std::strncmp(argv[i], "--", 2) == 0) {
|
|
if (strcmp(argv[i], "--strict") == 0) {
|
|
// Ignore --strict because the build file accidentally
|
|
// uses it. Why yes, this is a horrible hack.
|
|
}
|
|
else {
|
|
std::cerr << "ERROR: Invalid flag: " << argv[i] << std::endl;
|
|
usage_error = true;
|
|
}
|
|
}
|
|
else {
|
|
args.push_back(argv[i]);
|
|
}
|
|
}
|
|
|
|
if (!usage_error && args.size() != 2) {
|
|
std::cerr << "ERROR: Wrong number of arguments." << std::endl;
|
|
usage_error = true;
|
|
}
|
|
|
|
if (usage_error) {
|
|
std::cout << "Usage:\n\t" << argv[0] << " file1 file2" << std::endl;
|
|
return 1;
|
|
}
|
|
|
|
std::ifstream file1(args[0], std::ios_base::binary | std::ios_base::in),
|
|
file2(args[1], std::ios_base::binary | std::ios_base::in);
|
|
|
|
if (!file1 || !file2) {
|
|
std::cerr << "ERROR: Unable to open one or both files." << std::endl;
|
|
return 2;
|
|
}
|
|
|
|
file1.unsetf(std::ios_base::skipws);
|
|
file2.unsetf(std::ios_base::skipws);
|
|
|
|
iterator iter_file1(file1), iter_file2(file2);
|
|
|
|
scanner scan1(iter_file1, iterator()), scan2(iter_file2, iterator());
|
|
|
|
std::size_t line = 1, column = 1;
|
|
|
|
while (!scan1.at_end() && !scan2.at_end()) {
|
|
if (spirit::eol_p.parse(scan1)) {
|
|
if (!spirit::eol_p.parse(scan2)) {
|
|
std::cout << "Files differ at line " << line << ", column "
|
|
<< column << '.' << std::endl;
|
|
return 3;
|
|
}
|
|
|
|
++line, column = 1;
|
|
continue;
|
|
}
|
|
|
|
if (*scan1 != *scan2) {
|
|
std::cout << "Files differ at line " << line << ", column "
|
|
<< column << '.' << std::endl;
|
|
return 4;
|
|
}
|
|
|
|
++scan1, ++scan2, ++column;
|
|
}
|
|
|
|
if (scan1.at_end() != scan2.at_end()) {
|
|
std::cout << "Files differ in length." << std::endl;
|
|
return 5;
|
|
}
|
|
}
|