lines.h ソースファイル

説明を見る。
 // 
 // Copyright (c) 2003-2011, MIST Project, Nagoya University
 // All rights reserved.
 // 
 // Redistribution and use in source and binary forms, with or without modification,
 // are permitted provided that the following conditions are met:
 // 
 // 1. Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 // 
 // 2. Redistributions in binary form must reproduce the above copyright notice,
 // this list of conditions and the following disclaimer in the documentation
 // and/or other materials provided with the distribution.
 // 
 // 3. Neither the name of the Nagoya University nor the names of its contributors
 // may be used to endorse or promote products derived from this software
 // without specific prior written permission.
 // 
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 // FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // 
 
 #ifndef __INCLUDE_MIST_LINES__
 #define __INCLUDE_MIST_LINES__
 
 
 #ifndef __INCLUDE_MIST_CONF_H__
 #include "../config/mist_conf.h"
 #endif
 
 #include <iostream>
 #include <string>
 #include <vector>
 
 #include <zlib.h>
 
 
 // mist名前空間の始まり
 _MIST_BEGIN
 
 
 namespace __lines_controller__
 {
     struct lines_controller
     {
         static const unsigned char *get_line( const unsigned char *s, const unsigned char *e, std::string &line, bool &__has_eol__ )
         {
             __has_eol__ = false;
             while( s < e )
             {
                 if( s[ 0 ] == '\r' )
                 {
                     if( s + 1 != e && s[ 1 ] == '\n' )
                     {
                         __has_eol__ = true;
                         s = s + 2;
                     }
                     else
                     {
                         s++;
                     }
                     break;
                 }
                 else if( s[ 0 ] == '\n' )
                 {
                     __has_eol__ = true;
                     s = s + 1;
                     break;
                 }
 
                 line += *s;
                 s++;
             }
 
             return( s > e ? e : s );
         }
 
         template < template < typename T, typename A > class Array, class Allocator >
         static bool read( Array< std::string, Allocator > &lines, const std::string &filename )
         {
             gzFile fp;
             if( ( fp = gzopen( filename.c_str( ), "rb" ) ) == NULL )
             {
                 return( false );
             }
 
             std::string line = "";
             size_t numBytes = 4096;
             unsigned char *buff = new unsigned char[ numBytes ];
 
             while( gzeof( fp ) == 0 )
             {
                 ptrdiff_t read_size = gzread( fp, ( void * )buff, static_cast< unsigned int >( sizeof( unsigned char ) * numBytes ) );
 
                 const unsigned char *sp = buff;
                 const unsigned char *ep = sp + read_size;
 
                 while( sp < ep )
                 {
                     bool __has_eol__ = false;
                     sp = get_line( sp, ep, line, __has_eol__ );
 
                     if( !line.empty( ) && __has_eol__ )
                     {
                         lines.push_back( line );
                         line.resize( 0 );
                     }
                 }
             }
 
             if( !line.empty( ) )
             {
                 lines.push_back( line );
             }
 
             gzclose( fp );
 
             delete [] buff;
 
             return( true );
         }
     };
 }
 
 
 
 
 template < template < typename T, typename A > class Array, class Allocator >
 bool read_lines( Array< std::string, Allocator > &lines, const std::string &filename )
 {
     // データをクリアする
     lines.clear( );
     return( __lines_controller__::lines_controller::read( lines, filename ) );
 }
 
 
 template < template < typename T, typename A > class Array, class Allocator >
 bool read_lines( Array< std::string, Allocator > &lines, const std::wstring &filename )
 {
     return( read_lines( lines, wstr2str( filename ) ) );
 }
 
 //  改行区切りのデータの入出力グループの終わり
 
 
 // mist名前空間の終わり
 _MIST_END
 
 
 #endif // __INCLUDE_MIST_LINES__
 