source/desc-parser.hh

   1 /*
   2  * --- T2-COPYRIGHT-NOTE-BEGIN ---
   3  * This copyright note is auto-generated by scripts/Create-CopyPatch.
   4  *
   5  * T2 SDE: source/UpdateList.cc
   6  * Copyright (C) 2004 - 2021 The T2 SDE Project
   7  *
   8  * More information can be found in the files COPYING and README.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; version 2 of the License. A copy of the
  13  * GNU General Public License can be found in the file COPYING.
  14  * --- T2-COPYRIGHT-NOTE-END ---
  15  */
  16
  17 #include "tag-parser.hh"
  18 #include <sstream>
  19
  20 // some inteligent Version information class, that contains
  21 // some logic to compare version numbers, including -beta and
  22 // -alpha suffixes
  23
  24 class DownloadInfo
  25 {
  26 public:
  27   std::string chksum;
  28   std::string file;
  29   std::string url;
  30   std::string down_url;
  31   std::string protocol;
  32 };
  33
  34 class DownloadTag : public Tag
  35 {
  36 public:
  37   DownloadTag () : Tag ("D","DOWN","DOWNLOAD") {}
  38
  39   bool Parse ()
  40   {
  41     std::string::size_type line_start = 0;
  42     std::string::size_type line_end;
  43     do {
  44       line_end = value.find('\n', line_start);
  45       std::string line = value.substr(line_start, line_end-line_start);
  46       ParseLine (line);
  47       line_start = line_end+1;
  48     } while (line_end != std::string::npos && line_end < value.length()-1);
  49
  50     return true;
  51   }
  52
  53   virtual void ClearImpl ()
  54   {
  55     download_infos.clear ();
  56   }
  57
  58   std::vector<DownloadInfo> download_infos;
  59
  60 private:
  61   bool ParseLine (const std::string& line)
  62   { // Todo: Error evaluation !
  63     DownloadInfo info;
  64     std::stringstream sstr(line);
  65     sstr >> info.chksum;
  66     sstr >> info.file;
  67     sstr >> info.url;
  68
  69     if (info.url[0] == '!') { // overwriting filename
  70       info.url.erase(0,1);
  71       info.down_url = info.url;
  72       std::string::size_type url_end = info.url.rfind('/');
  73       info.url = info.url.substr(0,url_end);
  74     } else
  75       info.down_url = info.url+info.file;
  76
  77     std::string::size_type protocol_end = info.url.find(':');
  78     info.protocol = info.url.substr(0, protocol_end);
  79
  80     download_infos.push_back(info);
  81     return true;
  82   }
  83 };
  84
  85
  86 // TODO: IMHO better tag bookkeeping ... -ReneR
  87 class Package : public TagParser
  88 {
  89 public:
  90   Package()
  91     : copyright("COPY","",""),
  92
  93       title("I","","INFO"),
  94       text("T","","TEXT"),
  95       url("U","","URL"),
  96
  97       author("A","AUTH","AUTHOR"),
  98       maintainer("M","","MAINTAINER"),
  99       category("C","","CATEGORY"),
 100       flags("F","","FLAGS"),
 101       arch("R","ARCH","ARCHITECTUR"),
 102       kernel("K","KERN","KERNEL"),
 103       dependency("E","DEP","DEPENDENCY"),
 104
 105       license("L","","LICENCE"),
 106       status("S","","STATUS"),
 107       version("V","VER","VERSION"),
 108       priority("P","","PRIORITY"),
 109
 110       download (),
 111       cv_url("","","CV-URL"),
 112       cv_flags("","","CV-FLAGS"),
 113
 114       sourcepackage("SRC","","SRCPACKAGE"),
 115       conf("O","","CONF")
 116   {
 117     tags.push_back(&copyright);
 118     tags.push_back(&title);
 119     tags.push_back(&text);
 120     tags.push_back(&url);
 121
 122     tags.push_back(&author);
 123     tags.push_back(&maintainer);
 124
 125     tags.push_back(&category);
 126     tags.push_back(&flags);
 127     tags.push_back(&arch);
 128     tags.push_back(&dependency);
 129
 130     tags.push_back(&license);
 131     tags.push_back(&status);
 132     tags.push_back(&version);
 133     tags.push_back(&priority);
 134
 135     tags.push_back(&download);
 136     tags.push_back(&cv_url);
 137     tags.push_back(&cv_flags);
 138     tags.push_back(&sourcepackage);
 139     tags.push_back(&conf);
 140   }
 141
 142   ~Package()
 143   {}
 144
 145   bool ParsePackage(const std::string& file)
 146   {
 147     return Parse(file) && download.Parse();
 148   }
 149
 150   Tag copyright;
 151
 152   Tag title;
 153   Tag text;
 154   Tag url;
 155
 156   Tag author;
 157   Tag maintainer;
 158
 159   Tag category;
 160   Tag flags;
 161   Tag arch;
 162   Tag kernel;
 163   Tag dependency;
 164
 165   Tag license;
 166   Tag status;
 167   Tag version;
 168   Tag priority;
 169
 170   DownloadTag download;
 171   Tag cv_url;
 172   Tag cv_flags;
 173
 174   Tag sourcepackage;
 175   Tag conf;
 176 };