Lots of updates to hooks.rb

[jf: Merged from http://starshine.org/xteddy/thomas/elinks/hooks.rb]

contrib/ruby/hooks.rb

@@ -21,6 +21,9 @@
 # to print message strings. The printed strings will be shown in a message
 # box.
 
+# -----
+# LAST UPDATE:  2006/06/21 -- Thomas Adam <thomas.adam22@gmail.com>
+# -----
 
 # Called when the user enters something into the goto URL dialog.
 #
@@ -37,7 +40,7 @@ def ELinks::goto_url_hook(url, current_url)
 	return "http://localhost/"
 
     when /test-ruby/
-	# Dump the exported variables.
+	# Currently used for debugging the exported variables.
 	message(ELinks::VERSION + " - " + ELinks::HOME);
 	return current_url
     end
@@ -71,17 +74,139 @@ end
 # document source untouched.
 
 def ELinks::pre_format_html_hook(url, html)
-    if url.grep("fvwm.lair.be\/(index|viewforum)*.\.php")
+  # Things start here.  Note the match alternation to define those sites
-	# I don't like the fact that the <img> tags provide labels as
+  # which you want to rerender.
-	# well as span classes.  So we'll remove them.
+
-        html.gsub!(/(<img src.*\"No new posts\".*\>)/,"<font color=\"green\">No New Posts</font></td>")
+  # This regexp object is for matching against specific domains.
-	html.gsub!(/(<img src.*\"New posts\".*\>)/,"<font color=\"red\">New Posts</font></td>")
+  domains="fvwm.lair.be|troubledlands.com|forums.gentoo.org"
-	html.gsub!(/<td><span class=\"gensmall\">([nN]o)|[Nn]ew posts\<\/span\>\<\/td\>/,"<td></td>")
+  r = Regexp.new('http:\/\/'"#{domains}"'\/.*')
+  s = Regexp.new('http:\/\/'"#{domains}"'\/view(forum|topic)|posting.*\.(html|php).*')
+  
+  if url.match(/http:\/\/edulinux.homeunix.org\/elinks-render\.html/)
+    html.gsub!(/(<p class=\"example\">)(.*?)(<\/p>)/, '<h2><font color="red">\2</font></h2>')
+    return html
   end
+
+    if url.match(r)
+        
+        # Handle viewtopic.php -- this has some very slightly different
+        # code to the other pages found on phpBB sites.  Again, the match
+        # alternations are important here -- I ought to define a Regexp
+        # object to handle this eventually, which would save code
+        # duplication, at any rate.
+        if url.match(s)
+
+            # Start with the menubar at the top, and remove the image
+            # links.  We still have to add the description back in so that
+            # we know what the link references.  :)
+            html.gsub!(/<(img.*?)>(faq|search|memberlist|usergroups|register|profile|you have no new messages|log out \[.*?\]|chat room<\/a>)/i,'\2')
+
+            # Remove the long list of relative links (I don't like them).
+            html.gsub!(/<link rel.*? \/>/,'')
+
+            # Turn on borders for the "main" table.
+            html.gsub!(/(<table class=\"forumline\".*border=)(\".*?\")(.*?>)/,'\11\3')
+            
+            # In the LHS of the table for each postee, remove their image
+            # link, and just display their status instead.
+            html.gsub!(/(<span class=\"postdetails\">.*?)(<img src.*? \/>)/i,'\1')
+
+            # Handle the options for each post.  Depending on the status
+            # of the person viewing this site, they could have none or all
+            # of these -- either way they've been shortened.
+            html.gsub!(/(<img src.*?)(alt=)(\"Reply With Quote\")\s*(title=\"reply with quote\")(.*? \/>)/i, '\1\2Q \4')
+            html.gsub!(/(<img src.*?)(alt=)(\"edit\/delete this post\")\s*(title=\"edit\/delete this post\")(.*? \/>)/i, '\1\2E/D \4')
+            html.gsub!(/(<img src.*?)(alt=)(\"delete this post\")\s*(title=\"delete this post\")(.*? \/>)/i, '\1\2D \4')
+            html.gsub!(/(<img src.*?)(alt=)(\"post\")\s*(title=\"post\")(.*? \/>)/i, '\1\2--&gt; \4')
+	    html.gsub!(/(<img src.*?)(alt=)(\"new post\")\s*(title=\"new post\")(.*? \/>)/i, '\1\2--&gt; \4')
+	    html.gsub!(/(<img src.*?)(alt=)(\"view newest post\")\s*(title=\"view newest post\")(.*? \/>)/i, '\1\2--&gt; \4')
+	    html.gsub!(/(<img src.*?)(alt=)(\"view latest post\")\s*(title=\"view latest post\")(.*? \/>)/i, '\1\2&lt;-- \4')
+
+
+            # See above.
+            html.gsub!(/(<img src.*?)(alt=)(\"view ip address of poster\")\s*(title=\"view ip address of poster\")(.*? \/>)/i, '\1\2IP />')
+	    html.gsub!(/<table cellspacing=\"0\" cellpadding=\"0\"\s*border=\"0\"\s*height="18"\s*width=\"18\">/, '<table border="0">')
+            html.gsub!(/(<img src.*?)(alt=)(\"view user\'s profile\")\s*(title=\"view user\'s profile\")(.*? \/>)/i, '\1\2Profile  />')
+            html.gsub!(/(<img src.*?)(alt=)(\"send private message\")\s*(title=\"send private message\")(.*? \/>)/i, '\1\2PM />')
+            html.gsub!(/(<img src.*?)(alt=)(\"send e-mail\")\s*(title=\"send e-mail\")(.*? \/>)/i, '\1\2email />')
+            html.gsub!(/(<img src.*?)(alt=)(\"visit poster\'s website\")\s*(title=\"visit poster\'s website\")(.*? \/>)/i, '\1\2Web />&nbsp;')
+            html.gsub!(/(<img src.*?)(alt=)(\"Yahoo Messenger\")\s*(title=\"Yahoo Messenger\")(.*? \/>)/i, '\1\2Yahoo />')
+            html.gsub!(/(<img src.*?)(alt=)(\"Msn Messenger\")\s*(title=\"Msn Messenger\")(.*? \/>)/i, '\1\2MSN />') 
+        end
+        
+        # PhpBB's index page defines its layout as a series of tables.
+        # The main table has a class of 'forumline' -- hence setting its
+        # border property to 1 helps readability and to proide distinct
+        # lines between the table sections.
+        html.gsub!(/(<table.*border=)(\".*?\")\s*class=\"forumline\"\s*(.*?>)/,'\11\3')
+        
+        # Change the background colour of the forum pages to white -- the
+        # default is grey.
+        html.gsub!(/(body \{\n\tbackground-color: )(\#E5E5E5\;)/,'\1white;')
+        
+        # Assuming you've told ELinks to remember your login details (not
+        # that it matters), the "New posts" and "No New Post" indicators
+        # were typically just defined in words.   This looked ugly.  Hence
+        # in this case, I've changed the table structure to change the
+        # background colour of these cells.  A red colour indicates "No new
+        # posts", whereas a green colour indicates "New Posts".
+        html.gsub!(/(<td class=\"row1\".*?)>(<img src.*No new posts.*>)/, '\1 bgcolor="red">&nbsp;</td>')
+        html.gsub!(/(<td class=\"row1\".*?)>(<img src.*new posts.*>)/i, '\1 bgcolor="green">&nbsp;</td>')
+        
+        # These lines appear at the bottom of the pages as a kind of "key"
+        # for the above changes.
+        html.gsub!(/(<img src.*\"No new posts\".*\>)/,"<font color=\"red\">No New Posts</font></td>")
+        html.gsub!(/(<img src.*\"New posts\".*\>)/,"<font color=\"green\">New Posts</font></td>")
+        
+        # Remove duplicate lines within the HTML that would otherwise
+        # repeat the same thing.  (Damn annoying)
+        html.gsub!(/<td><span class=\"gensmall\">([nN]o)|[Nn]ew posts\<\/span\>\<\/td\>/,"<td></td>")
+        
+        # As with the red/green background colour for (No|New) Posts
+        # above, a blue colour in the table indicates that the selected
+        # thread is locked.
+        html.gsub!(/(<td class=\"row1\".*?)>(<img src.*locked.*>)/i, '\1 bgcolor="blue">&nbsp;</td>')
+        
+        # Orange indicates that the selected thread has moved.
+        html.gsub!(/(<td class=\"row1\".*?)>(<img src.*moved.*>)/i, '\1 bgcolor="orange">&nbsp;</td>')
+        
+        # Remove image repetitions at the bottom of the page entirely (the
+        # only ever serve as a key for the page above -- this is why I am
+        # using colour here.)
+        html.gsub!(/(<td class=\"gensmall\">(.*?<\/td>|<img src.*?><\/td>))/,'')
+        html.gsub!(/(<td.*?>)(<img src.*alt=\"(Sticky|Announcement|.*Popular.*)\".* \/><\/td>)/i, '')
+        html.gsub!(/(<td.*?>)(<img src.*alt=\"Forum is locked\" \/><\/td>)/,'')
+    
+        # At the very top of the pages, remove the images, but retain the
+        # links by way of their alt attributes.  (For things like FAQ,
+        # MemeberList, etc.)
+	#
+	# DON'T do this for the pages matched by regexp 's' -- to do so
+	# would remove many other images those pages rely on (and that
+	# have been munged in the 's' section above, anyway.)
+        html.gsub!(/<(img.*?)>(.*?<\/a>)/i, '\2') if not url.match(s)
+
+	# OK -- "View Latest Post" becomes "[<--]" which hopefully points
+	# to the person's name.
+	html.gsub!(/(<img src.*?)(alt=)(\"view (newest|latest) post\")\s*(title=\"view (newest|latest) post\")(.*? \/>)/i, '\1\2&lt;-- \4') if not url.match(s)
+	
+	# And in a similar fashion, remove the "Goto Page" links.
+	html.gsub!(/(<img src.*?alt=\"goto page\".*? \/>)/i,'')
+        
+        # No need to have this in the table at the bottom.
+        html.gsub!(/(<td class=\"row1\".*?><img src.*alt=\"who is online\".* \/><\/td>)/i,'')
+
+        # Remove all the Link: rel references
+        html.gsub!(/<link rel.*? \/>/,'')
+
+        # Some phpBB sites use frames.  Ugh
+        html.gsub!(/(<table width=\"100%\" cellpadding=\"4\" cellspacing=\"1\" border=)1>/,'\10>')
+        html.gsub!(/(<frameset.*?)(border=)\"2\"(.*)(frameborder=)\"(.*?)\"(.*>)/i,'\1\2"0"\3\4"no"\6')
+    end
+
   return html
 end
  
-
 # Determining what proxy, if any, should be used to load a requested URL.
 #
 # Arguments: