web/web/mono-rss.cs

   1 //
   2 // Generates the Mono RSS feed
   3 //
   4 // Miguel de Icaza
   5 //
   6 using System;
   7 using System.IO;
   8 using System.Xml;
   9 using System.Text;
  10 using RSS;
  11
  12 class X {
  13         static RSS.RSS rss;
  14         static Channel c;
  15         static int item_count;
  16         static int line;
  17
  18         static int GetMonth (string s)
  19         {
  20                 switch (s){
  21                 case "Jan": return 1;
  22                 case "Feb": return 2;
  23                 case "Mar": return 3;
  24                 case "Apr": return 4;
  25                 case "May": return 5;
  26                 case "Jun": return 6;
  27                 case "Jul": return 7;
  28                 case "Aug": return 8;
  29                 case "Sep": return 9;
  30                 case "Oct": return 10;
  31                 case "Nov": return 11;
  32                 case "Dec": return 12;
  33                 }
  34                 throw new Exception ("Can not parse month name: " + s);
  35         }
  36
  37         static int GetDay (string s)
  38         {
  39                 int d = s [0] - '0';
  40
  41                 if (Char.IsDigit (s [1])){
  42                         d = d * 10 + (s [1] - '0');
  43                 }
  44                 return d;
  45         }
  46
  47         static void PopulateRSS (StreamReader input)
  48         {
  49                 string s;
  50
  51                 while ((s = input.ReadLine ()) != null){
  52                         line++;
  53                         if (s.StartsWith ("@item "))
  54                                 break;
  55                 }
  56
  57                 if (s == null || !s.StartsWith ("@item ")){
  58                         Console.WriteLine ("Could not find beginning of text to RSS");
  59                         return;
  60                 }
  61
  62                 Item i = null;
  63                 string description = "";
  64                 do {
  65                         if (s.StartsWith ("@item ")){
  66                                 if (item_count++ > 25)
  67                                         break;
  68
  69                                 if (i != null){
  70                                         i.Description = description;
  71                                         description = "";
  72                                 }
  73
  74                                 string title = s.Substring (6);
  75                                 string link = "http://www.go-mono.com/index.html#";
  76                                 foreach (char ch in title){
  77                                         if (ch != ' ')
  78                                                 link += ch;
  79                                 }
  80
  81                                 i = c.NewItem ();
  82                                 i.Title = title;
  83                                 i.Link = link;
  84                                 DateTime dt = new DateTime (2004, GetMonth (s.Substring (6, 3)), GetDay (s.Substring (10, 2)));
  85                                 i.PubDate = dt.ToString ("R");
  86                         } else {
  87                                 description += "\n" + (s == "\n" ? "<p>" : s);
  88                         }
  89                         line++;
  90                 } while ((s = input.ReadLine ()) != null);
  91
  92                 if (i != null){
  93                         i.Description = description;
  94                 }
  95         }
  96
  97         static void MakeRSS (string input, string output)
  98         {
  99                 rss = new RSS.RSS ();
 100                 c = rss.NewChannel ("Mono Project News", "http://www.go-mono.com");
 101
 102                 c.Title = "Mono Project News";
 103                 c.Link = "http://www.go-mono.com";
 104                 c.Description =
 105                 "News from the Mono project: a portable implementation of the .NET Framework";
 106                 c.WebMaster = "webmaster@go-mono.com";
 107                 c.ManagingEditor = "miguel@ximian.com";
 108                 string t = File.GetLastWriteTime (input).ToString ("r");
 109                 c.PubDate = t;
 110                 c.LastBuildDate = t;
 111
 112                 using (FileStream fs = new FileStream (input, FileMode.Open)){
 113                         using (StreamReader input_stream = new StreamReader (fs)){
 114                                 try {
 115                                         PopulateRSS (input_stream);
 116                                 } catch {
 117                                         Console.WriteLine ("{0} failure while loading: {1}", line, input);
 118                                         throw;
 119                                 }
 120                         }
 121                 }
 122
 123                 rss.XmlDocument.Save (output);
 124         }
 125
 126         static int Main (string [] args)
 127         {
 128                 switch (args.Length){
 129                 case 0:
 130                         MakeRSS ("index", "index.rss");
 131                         break;
 132                 case 2:
 133                         MakeRSS (args [0], args [1]);
 134                         break;
 135
 136                 default:
 137                         Console.WriteLine ("Usage is: mono-rss [input output.rss]");
 138                         return 1;
 139                 }
 140
 141                 return 0;
 142         }
 143 }