fbreader/src/formats/util/MiscUtil.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 <stdlib.h>
  21
  22 #include <ZLApplication.h>
  23 #include <ZLFile.h>
  24 #include <ZLStringUtil.h>
  25
  26 #include "MiscUtil.h"
  27
  28 bool MiscUtil::isReference(const std::string &text) {
  29         return
  30                 ZLStringUtil::stringStartsWith(text, "http://") ||
  31                 ZLStringUtil::stringStartsWith(text, "https://") ||
  32                 ZLStringUtil::stringStartsWith(text, "mailto:") ||
  33                 ZLStringUtil::stringStartsWith(text, "ftp://");
  34 }
  35
  36 std::string MiscUtil::htmlDirectoryPrefix(const std::string &fileName) {
  37         ZLFile file(fileName);
  38         std::string shortName = file.name(false);
  39         std::string path = file.path();
  40         int index = -1;
  41         if ((path.length() > shortName.length()) &&
  42                         (path[path.length() - shortName.length() - 1] == ':')) {
  43                 index = shortName.rfind('/');
  44         }
  45         return path.substr(0, path.length() - shortName.length() + index + 1);
  46 }
  47
  48 std::string MiscUtil::htmlFileName(const std::string &fileName) {
  49         ZLFile file(fileName);
  50         std::string shortName = file.name(false);
  51         std::string path = file.path();
  52         int index = -1;
  53         if ((path.length() > shortName.length()) &&
  54                         (path[path.length() - shortName.length() - 1] == ':')) {
  55                 index = shortName.rfind('/');
  56         }
  57         return path.substr(path.length() - shortName.length() + index + 1);
  58 }
  59
  60 std::string MiscUtil::decodeHtmlURL(const std::string &encoded) {
  61         char buffer[3];
  62         buffer[2] = '\0';
  63
  64         std::string decoded;
  65         const int len = encoded.length();
  66         decoded.reserve(len);
  67         for (int i = 0; i < len; i++) {
  68                 if ((encoded[i] == '%') && (i < len - 2)) {
  69                         buffer[0] = *(encoded.data() + i + 1);
  70                         buffer[1] = *(encoded.data() + i + 2);
  71                         decoded += (char)strtol(buffer, 0, 16);
  72                         i += 2;
  73                 } else {
  74                         decoded += encoded[i];
  75                 }
  76         }
  77         return decoded;
  78 }