contrib/rss: use the dom parser

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/contrib/rss_downloader/src/rss_downloader.nit b/contrib/rss_downloader/src/rss_downloader.nit
index ed5fc72..29fdd1a 100644 (file)
--- a/contrib/rss_downloader/src/rss_downloader.nit
+++ b/contrib/rss_downloader/src/rss_downloader.nit
@@ -18,6 +18,7 @@
 module rss_downloader
 
 import curl
+import dom
 
 redef class Sys
        # Lazy man's verbose option
@@ -47,6 +48,9 @@ class Config
 
        # Exception where we ignore uniqueness and can be downloaded again (may be empty)
        var unique_exceptions: Array[Pattern]
+
+       # XML tag used for pattern recognition
+       fun tag_title: String do return "title"
 end
 
 # An element from an RSS feed
@@ -248,22 +252,14 @@ redef class Text
        # Get this RSS feed content as an `Array[Element]`
        fun to_rss_elements: Array[Element]
        do
-               var title_re = "<title><![^/]*</title>".to_re
-               var link_re = "<link>[^<]*download[^<]*</link>".to_re
-
-               var title_prefix_len = "<title><![CDATA[".length
-               var title_suffix_len = "]]</title>".length+1
-
-               var titles = search_all(title_re)
-               var links = search_all(link_re)
-
-               if sys.verbose then print "\n# Found {titles.length} titles and {links.length} links"
-               assert titles.length == links.length
+               var xml = to_xml
+               var items = xml["rss"].first["channel"].first["item"]
 
                var elements = new Array[Element]
-               for i in titles.length.times do
-                       var title = titles[i].to_s.substring(title_prefix_len, titles[i].length - title_prefix_len - title_suffix_len)
-                       var link = links[i].to_s.substring(6, links[i].length - 6 - 7)
+               for item in items do
+                       var title = item[tool_config.tag_title].first.as(XMLStartTag).data
+                       var link = item["link"].first.as(XMLStartTag).data
+
                        elements.add new Element(title, link)
                end