fbreader/src/formats/txt/TxtReader.cpp

   1 /*
   2  * Copyright (C) 2004-2008 Geometer Plus <contact@geometerplus.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA.
  18  */
  19
  20 #include <cctype>
  21
  22 #include <ZLInputStream.h>
  23
  24 #include "TxtReader.h"
  25
  26 TxtReader::TxtReader(const std::string &encoding) : EncodedTextReader(encoding) {
  27 }
  28
  29 TxtReader::~TxtReader() {
  30 }
  31
  32 void TxtReader::readDocument(ZLInputStream &stream) {
  33         if (!stream.open()) {
  34                 return;
  35         }
  36
  37         startDocumentHandler();
  38
  39         const size_t BUFSIZE = 2048;
  40         char *buffer = new char[BUFSIZE];
  41         std::string str;
  42         size_t length;
  43         do {
  44                 length = stream.read(buffer, BUFSIZE);
  45                 char *start = buffer;
  46                 const char *end = buffer + length;
  47                 for (char *ptr = start; ptr != end; ++ptr) {
  48                         if (*ptr == '\n') {
  49                                 if (start != ptr) {
  50                                         str.erase();
  51                                         myConverter->convert(str, start, ptr + 1);
  52                                         characterDataHandler(str);
  53                                 }
  54                                 start = ptr + 1;
  55                                 newLineHandler();
  56                         } else if (*ptr == '\r') {
  57                                 continue;
  58                         } else if (isspace((unsigned char)*ptr)) {
  59                                 *ptr = ' ';
  60                         } else {
  61                         }
  62                 }
  63                 if (start != end) {
  64                         str.erase();
  65                         myConverter->convert(str, start, end);
  66                         characterDataHandler(str);
  67                 }
  68         } while (length == BUFSIZE);
  69         delete[] buffer;
  70
  71         endDocumentHandler();
  72
  73         stream.close();
  74 }