source/desc-parser.hh

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