From c96d672810ae524aedf9ffff08dcca773cd9a876 Mon Sep 17 00:00:00 2001
From: joey <joey@0fa5a96a-9a0e-0410-b3b2-a0fd24251071>
Date: Wed, 25 Jul 2007 03:36:53 +0000
Subject: massive patchqueue reorg

patches can now be anywhere and tagged patch to show up on the patch list.
Moved all the patchqueue stuff to todo items; some of it was merged into
existing todo items.
---
 doc/todo/format_escape.mdwn | 227 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 227 insertions(+)
 create mode 100644 doc/todo/format_escape.mdwn

(limited to 'doc/todo/format_escape.mdwn')

diff --git a/doc/todo/format_escape.mdwn b/doc/todo/format_escape.mdwn
new file mode 100644
index 000000000..f8ea789ec
--- /dev/null
+++ b/doc/todo/format_escape.mdwn
@@ -0,0 +1,227 @@
+Since some preprocessor directives insert raw HTML, it would be good to 
+specify, per-format, how to pass HTML so that it goes through the format 
+OK. With Markdown we cross our fingers; with reST we use the "raw" 
+directive.
+
+I added an extra named parameter to the htmlize hook, which feels sort of
+wrong, since none of the other hooks take parameters. Let me know what 
+you think. --Ethan
+
+Seems fairly reasonable, actually. Shouldn't the `$type` come from `$page`
+instead of `$destpage` though? Only other obvious change is to make the
+escape parameter optional, and only call it if set. --[[Joey]]
+
+> I couldn't figure out what to make it from, but thinking it through, 
+> yeah, it should be $page. Revised patch follows. --Ethan
+
+>> I've updated the patch some more, but I think it's incomplete. ikiwiki
+>> emits raw html when expanding WikiLinks too, and it would need to escape
+>> those. Assuming that escaping html embedded in the middle of a sentence
+>> works.. --[[Joey]]
+
+>>> Revised again. I get around this by making another hook, htmlescapelink,
+>>> which is called to generate links in whatever language. In addition, it 
+>>> doesn't (can't?) generate
+>>> spans, and it doesn't handle inlineable image links. If these were 
+>>> desired, the approach to take would probably be to use substitution
+>>> definitions, which would require generating two bits of code for each
+>>> link/html snippet, and putting one at the end of the paragraph (or maybe
+>>> the document?).
+>>> To specify that (for example) Discussion links are meant to be HTML and
+>>> not rst or whatever, I added a "genhtml" parameter to htmllink. It seems
+>>> to work -- see <http://ikidev.betacantrips.com/blah.html> for an example.
+>>> --Ethan
+
+[[tag patch]]
+
+<pre>
+Index: debian/changelog
+===================================================================
+--- debian/changelog	(revision 3197)
++++ debian/changelog	(working copy)
+@@ -24,6 +24,9 @@
+     than just a suggests, since OpenID is enabled by default.
+   * Fix a bug that caused link(foo) to succeed if page foo did not exist.
+   * Fix tags to page names that contain special characters.
++  * Based on a patch by Ethan, add a new htmlescape hook, that is called
++    when a preprocssor directive emits inline html. The rst plugin uses this
++    hook to support inlined raw html.
+ 
+   [ Josh Triplett ]
+   * Use pngcrush and optipng on all PNG files.
+Index: IkiWiki/Render.pm
+===================================================================
+--- IkiWiki/Render.pm	(revision 3197)
++++ IkiWiki/Render.pm	(working copy)
+@@ -96,7 +96,7 @@
+ 		if ($page !~ /.*\/\Q$discussionlink\E$/ &&
+ 		   (length $config{cgiurl} ||
+ 		    exists $links{$page."/".$discussionlink})) {
+-			$template->param(discussionlink => htmllink($page, $page, gettext("Discussion"), noimageinline => 1, forcesubpage => 1));
++			$template->param(discussionlink => htmllink($page, $page, gettext("Discussion"), noimageinline => 1, forcesubpage => 1, genhtml => 1));
+ 			$actions++;
+ 		}
+ 	}
+Index: IkiWiki/Plugin/rst.pm
+===================================================================
+--- IkiWiki/Plugin/rst.pm	(revision 3197)
++++ IkiWiki/Plugin/rst.pm	(working copy)
+@@ -30,15 +30,36 @@
+ html = publish_string(stdin.read(), writer_name='html', 
+        settings_overrides = { 'halt_level': 6, 
+                               'file_insertion_enabled': 0,
+-                              'raw_enabled': 0 }
++                              'raw_enabled': 1 }
+ );
+ print html[html.find('<body>')+6:html.find('</body>')].strip();
+ ";
+ 
+ sub import { #{{{
+ 	hook(type => "htmlize", id => "rst", call => \&htmlize);
++	hook(type => "htmlescape", id => "rst", call => \&htmlescape);
++	hook(type => "htmlescapelink", id => "rst", call => \&htmlescapelink);
+ } # }}}
+ 
++sub htmlescapelink ($$;@) { #{{{
++	my $url = shift;
++	my $text = shift;
++	my %params = @_;
++
++	if ($params{broken}){
++		return "`? <$url>`_\ $text";
++	}
++	else {
++		return "`$text <$url>`_";
++	}
++} # }}}
++
++sub htmlescape ($) { #{{{
++	my $html=shift;
++	$html=~s/^/  /mg;
++	return ".. raw:: html\n\n".$html;
++} # }}}
++
+ sub htmlize (@) { #{{{
+ 	my %params=@_;
+ 	my $content=$params{content};
+Index: doc/plugins/write.mdwn
+===================================================================
+--- doc/plugins/write.mdwn	(revision 3197)
++++ doc/plugins/write.mdwn	(working copy)
+@@ -121,6 +121,26 @@
+ The function is passed named parameters: "page" and "content" and should
+ return the htmlized content.
+ 
++### htmlescape
++
++	hook(type => "htmlescape", id => "ext", call => \&htmlescape);
++
++Some markup languages do not allow raw html to be mixed in with the markup
++language, and need it to be escaped in some way. This hook is a companion
++to the htmlize hook, and is called when ikiwiki detects that a preprocessor
++directive is inserting raw html. It is passed the chunk of html in
++question, and should return the escaped chunk.
++
++### htmlescapelink
++
++	hook(type => "htmlescapelink", id => "ext", call => \&htmlescapelink);
++
++Some markup languages have special syntax to link to other pages. This hook
++is a companion to the htmlize and htmlescape hooks, and it is called when a
++link is inserted. It is passed the target of the link and the text of the 
++link, and an optional named parameter "broken" if a broken link is being
++generated. It should return the correctly-formatted link.
++
+ ### pagetemplate
+ 
+ 	hook(type => "pagetemplate", id => "foo", call => \&pagetemplate);
+@@ -355,6 +375,7 @@
+ * forcesubpage  - set to force a link to a subpage
+ * linktext - set to force the link text to something
+ * anchor - set to make the link include an anchor
++* genhtml - set to generate HTML and not escape for correct format
+ 
+ #### `readfile($;$)`
+ 
+Index: doc/plugins/rst.mdwn
+===================================================================
+--- doc/plugins/rst.mdwn	(revision 3197)
++++ doc/plugins/rst.mdwn	(working copy)
+@@ -10,10 +10,8 @@
+ Note that this plugin does not interoperate very well with the rest of
+ ikiwiki. Limitations include:
+ 
+-* reStructuredText does not allow raw html to be inserted into
+-  documents, but ikiwiki does so in many cases, including
+-  [[WikiLinks|WikiLink]] and many
+-  [[PreprocessorDirectives|PreprocessorDirective]].
++* Some bits of ikiwiki may still assume that markdown is used or embed html
++  in ways that break reStructuredText. (Report bugs if you find any.)
+ * It's slow; it forks a copy of python for each page. While there is a
+   perl version of the reStructuredText processor, it is not being kept in
+   sync with the standard version, so is not used.
+Index: IkiWiki.pm
+===================================================================
+--- IkiWiki.pm	(revision 3197)
++++ IkiWiki.pm	(working copy)
+@@ -469,6 +469,10 @@
+ 	my $page=shift; # the page that will contain the link (different for inline)
+ 	my $link=shift;
+ 	my %opts=@_;
++	# we are processing $lpage and so we need to format things in accordance
++	# with the formatting language of $lpage. inline generates HTML so links
++	# will be escaped seperately.
++	my $type=pagetype($pagesources{$lpage});
+ 
+ 	my $bestlink;
+ 	if (! $opts{forcesubpage}) {
+@@ -494,12 +498,17 @@
+ 	}
+ 	if (! grep { $_ eq $bestlink } map { @{$_} } values %renderedfiles) {
+ 		return $linktext unless length $config{cgiurl};
+-		return "<span><a href=\"".
+-			cgiurl(
+-				do => "create",
+-				page => pagetitle(lc($link), 1),
+-				from => $lpage
+-			).
++		my $url = cgiurl(
++				 do => "create",
++				 page => pagetitle(lc($link), 1),
++				 from => $lpage
++				);
++
++		if ($hooks{htmlescapelink}{$type} && ! $opts{genhtml}){
++			return $hooks{htmlescapelink}{$type}{call}->($url, $linktext,
++							       broken => 1);
++		}
++		return "<span><a href=\"". $url.
+ 			"\">?</a>$linktext</span>"
+ 	}
+ 	
+@@ -514,6 +523,9 @@
+ 		$bestlink.="#".$opts{anchor};
+ 	}
+ 
++	if ($hooks{htmlescapelink}{$type} && !$opts{genhtml}) {
++	  return $hooks{htmlescapelink}{$type}{call}->($bestlink, $linktext);
++	}
+ 	return "<a href=\"$bestlink\">$linktext</a>";
+ } #}}}
+ 
+@@ -628,6 +640,14 @@
+ 				preview => $preprocess_preview,
+ 			);
+ 			$preprocessing{$page}--;
++
++			# Handle escaping html if the htmlizer needs it.
++			if ($ret =~ /[<>]/ && $pagesources{$page}) {
++				my $type=pagetype($pagesources{$page});
++				if ($hooks{htmlescape}{$type}) {
++					return $hooks{htmlescape}{$type}{call}->($ret);
++				}
++			}
+ 			return $ret;
+ 		}
+ 		else {
+</pre>
-- 
cgit v1.2.3