crlf_check.cpp

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//  crlf_check implementation  ------------------------------------------------//

//  Copyright Beman Dawes 2002.
//  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)

//  Contributed by Joerg Walter

#include "crlf_check.hpp"

namespace boost
{
namespace inspect
{
crlf_check::crlf_check() : m_files_with_errors (0)
{
}

void crlf_check::inspect (
    const string& library_name,
    const path& full_path,    // example: c:/foo/boost/filesystem/path.hpp
    const string& contents )      // contents of file to be inspected
{

    // The understanding on line endings, as I remember it, was that
    // either "\n" or "\r\n" is OK, and they can be mixed, but "\r" alone
    // is not acceptable. Mixed line endings are allowed because Boost files
    // are commonly edited in both Windows and UNIX environments, and editors
    // in those environments generally accept either ending. Even Mac people
    // agreed with this policy. --Beman

    // Joerg's original implementation is saved below,
    // in case we change our minds!

    for ( std::string::const_iterator itr ( contents.begin() );
            itr != contents.end(); ++itr )
    {
        if ( *itr == '\r' && ( (itr + 1) == contents.end() || * (itr + 1) != '\n') )
        {
            ++m_files_with_errors;
            error ( library_name, full_path, desc() );
            break;
        }
    }

    /*
          size_t cr_count = 0;
          size_t lf_count = 0;
          size_t crlf_count = 0;
          bool had_cr = false;
          for ( size_t i = 0; i < contents.length(); ++i )
          {
            switch ( contents[i] )
            {
              case '\r':
                had_cr = true;
                ++cr_count;
                break;
              case '\n':
                ++lf_count;
                if ( had_cr )
                  ++crlf_count;
                // fallthrough
              default:
                had_cr = false;
                break;
            }
          }
          if ( cr_count > 0 && lf_count != crlf_count )
          {
            ++m_files_with_errors;
            error( library_name, full_path, desc() );
          }
    */
}
} // namespace inspect
} // namespace boost