X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/d163b06cd6c4a3018a10ced73ec2e74108c3da2a..751c06fabaf5c7a0d3b08bf87cd1978c101303b9:/doc/todo/Resolve_native_reStructuredText_links_to_ikiwiki_pages.mdwn diff --git a/doc/todo/Resolve_native_reStructuredText_links_to_ikiwiki_pages.mdwn b/doc/todo/Resolve_native_reStructuredText_links_to_ikiwiki_pages.mdwn index 4bde25bd2..6e0f32fd5 100644 --- a/doc/todo/Resolve_native_reStructuredText_links_to_ikiwiki_pages.mdwn +++ b/doc/todo/Resolve_native_reStructuredText_links_to_ikiwiki_pages.mdwn @@ -65,6 +65,11 @@ Implementation of Proposal-2 wikilinks are in the branch [rst-wl]: http://github.com/engla/ikiwiki/commits/rst-wikilinks +**rst-wikilinks** patch series includes changes at the end to use ikiwiki's +'htmllink' for the links (which is the only sane thing to do to work in all configurations). +This means a :wiki:`Link` should render just exactly like [[Link]] whether +the target exists or not. + On top of **rst-wikilinks** is [rst-customize][rst-custom] which adds two power user features: Global (python) file to read in custom directives (unsafe), and a wikifile as "header" file for all parsed .rst files (safe, @@ -72,14 +77,32 @@ but disruptive since all .rst depend on it). Well, the customizations have to be picked and chosen from this, but at least the global python file can be very convenient. +> Did you consider just including the global rst header text into an item +> in the setup file? --[[Joey]] +> +>> Then `rst_header` would not be much different from the python script +>> `rst_customize`. rst_header is as safe as other files (though disruptive +>> as noted), so it should/could be a editable file in the Wiki. A Python +>> script of course can not be. There is nothing you can do in the +>> rst_header (that you sensibly would do, I think) that couldn't be done in +>> the Python script. `rst_header` has very limited use, but it is another +>> possibility, mainly for the user-editable aspect. --[[ulrik]] +>> +>> (I foresaw only two things to be added to the rst_header: the default +>> role could be configured there (as with rst_wikirole), and if you have a +>> meta-role like :shortcut:, shortcuts could be defined there.) +> +> I have some discussion on the [docutils mailing list][dml], the developers +> of docutils seems to favor "Proposal 1", while I defend my ideas. They +> want all users of ReST to use only the basic featureset to remain +> compatible, of course. -- [[ulrik]] + +[dml]: http://thread.gmane.org/gmane.text.docutils.user/5376 + Some rst-custom [examples are here](http://kaizer.se/wiki/rst_examples/) [rst-custom]: http://github.com/engla/ikiwiki/commits/rst-customize -**What is missing?** links to nonexistant pages are not resolved. -Perhaps the "link resolver" part should use Ikiwiki's htmllink instead -of its simple subsitutions. - ## Directives ## Now **Directives**: As it is now, ikiwiki goes though (roughly): @@ -108,6 +131,97 @@ picture before it. but rST directives allow a direct line (after :: on first line), an option list, and a content block. +> You've done a lot of work already, but ... +> +> The filter approach seems much simpler than the other approaches +> for users to understand, since they can just use identical ikiwiki +> markup on rst pages as they would use anywhere else. This is very desirable +> if the wiki allows rst in addition to mdwn, since then users don't have +> to learn two completly different ways of doing wikilinks and directives. +> I also wonder if even those familiar with rst would find entirely natural +> the ways you've found to shoehorn in wikilinks, named wikilinks, and ikiwiki +> directives? +> +> Htmlize in filter avoids these problems. It also leaves open the possibility +> that ikiwiki could become smarter about the rendering chain later, and learn +> to use a better order for rst (ie, htmlize first). If that later happened, +> the htmlize in filter hack could go away. --[[Joey]] + +> (BTW, the [[plugins/txt]] plugin already does html formatting +> in filter, for similar reasons.) --[[Joey]] + +>> Thank you for the comments! Forget the work, it's not so much. +>> I'd rank the :wiki: link addition pretty high, and the other changes way +>> behind that: +>> +>> The :wiki:`Wiki Link` syntax is *very* appropriate as rst syntax +>> since it fits well with other uses of roles (notice that :RFC:`822` +>> inserts a link to RFC822 etc, and that the default role is a *title* role +>> (title of some work); thus very appropriate for medium-specific links like +>> wiki links. So I'd rank :wiki: links a worthwhile addition regardless of +>> outcome here, since it's a very rst-like alternative for those who wish to +>> use more rst-like syntax (and documents degrades better outside the wiki as +>> noted). +>> +>>> Unsure about the degredation argument. It will work some of +>>> the time, but ikiwiki's [[ikiwiki/subpage/linkingrules]] +>>> are sufficiently different from normal html relative link +>>> rules that it often won't work. --[[Joey]] +>>> +>>>> With degradation I mean that if you take a file out of the wiki; the +>>>> links degrade to stylized text. If using default role, they degrade to +>>>> :title: which renders italicized text (which I find is exactly +>>>> appropriate). There is no way for them to degrade into links, except of +>>>> course if you reimplement the :wiki: role. You can also respecify +>>>> either the default role (the `wikilink` syntax) or the :wiki: role (the +>>>> :wiki:`wikilink` syntax) to any other markup, for example None. +>>>> --[[ulrik]] +>> +>> The named link syntax (just like the :wiki: role) are inspired from +>> [trac][tracrst] and a good fit, but only if the wiki is committed to +>> using only rst, which I don't think is the case. +>> +>> The rst-customize changes are very useful for custom directive +>> installations (like the sourcecode directive, or shortcut roles I show +>> in the examples page), but there might be a way for the user to inject +>> docutils addons that I'm missing (one very ugly way would be to stick +>> them in sitecustomize.py which affects all Python programs). +>> +>> With the presented changes, I already have a working RestructuredText +>> wiki, but I'm admitting that using .. raw:: html around all directives is +>> very ugly (I use few directives: inline, toggle, meta, tag, map) +>> +>> On filter/htmlize: Well **rst** is clearly antisocial: It can't see HTML, +>> and ikiwiki directives are wrappend in paragraph tags. (For wikilinks +>> this is probably no problem). So the suggestion about `.. ikiwiki:` is +>> partly because it looks good in rst syntax, but also since it would emit +>> a div to wrap around the element instead of a paragraph. +>> +>> I don't know if you mean that rst could be reordered to do htmlize before +>> other phases? rst must be before any preprocess hook to avoid seeing any +>> HTML. +>> +>>> One of my long term goals is to refactor all the code in ikiwiki +>>> that manually runs the various stages of the render pipeline, +>>> into one centralized place. Once that's done, that place can get +>>> smart about what order to run the stages, and use a different +>>> order for rst. --[[Joey]] +>> +>> If I'm thinking right, processing to HTML already in filter means any +>> processing in scan can be reused directly (or skipped if it's legal to +>> emit 'add_link' in filter.) +>> +>> -- [[ulrik]] + +>>> Seems it could be, yes. --[[Joey]] +>>> +>>>> It is not clear how we can work around reST wrapping directives with +>>>> paragraph tags. Also, some escaping of xml characters & <> might +>>>> happen, but I can't imagine right now what breakage can come from that. +>>>> -- [[ulrik]] + +[tracrst]: http://trac.edgewall.org/wiki/WikiRestructuredText + ### Implementation ### Preserving indents in the preprocessor are in branch [pproc-indent][ppi] @@ -115,6 +229,60 @@ Preserving indents in the preprocessor are in branch [pproc-indent][ppi] (These simple patches come with a warning: _Those are the first lines of Perl I've ever written!_) +> This seems like a good idea, since it solves issues for eg, indented +> directives in mdwn as well. But, looking at the diff, I see a clear bug: +> +> - return "[[!$command ". +> + $result = "[[!$command ". +> +> That makes it go on and parse an infinitely nested directive chain, instead +> of immediatly throwing an error. +> +> Also, it seems that the "indent" matching in the regexps may be too broad, +> wouldn't it also match whitespace before a directive that was not at the beginning +> of a line, and treat it as an indent? With some bad luck, that could cause mdwn +> to put the indented output in a pre block. --[[Joey]] +> +>> You are probably right about the bug. I'm not quite sure what the nested +>> directives examples looks like, but I must have overlooked how the +>> recursion counter works; I thought simply changing if to elif the next +>> few lines would solve that. I'm sorry for that! +>> +>> We don't have to change the `$handle` function at all, if it is possible +>> to do the indent substitution all in one line instead of passing it to +>> handle, I don't know if it is possible to turn: +>> +>> $content =~ s{$regex}{$handle->($1, $2, $3, $4, $5)}eg; +>> +>> into +>> +>> $content =~ s{$regex}{s/^/$1/gm{$handle->($2, $3, $4, $5)}}eg; +>> +>> Well, no idea how that would be expressed, but I mean, replace the indent +>> directly in $handle's return value. +>> +>>> Yes, in effect just `indent($1, handle->($2,$,4))` --[[Joey]] +>> +>> The indent-catching regex is wrong in the way you mention, it has been +>> nagigng my mind a bit as well; I think matching start of line + spaces +>> and tabs is the only thing we want. +>> -- [[ulrik]] +>> +>>> Well, seems you want to match the indent at the start of the line containing +>>> the directive, even if the directive does not start the line. That would +>>> be quite hard to make a regexp do, though. --[[Joey]] +>> +>> I wasted a long time getting the simpler `indent($1, handle->($2,$,4))` to +>> work (remember, I don't know perl at all). Somehow `$1` does not arrive, I +>> made a simple testcase that worked, and I conclude something inside $handle +>> results in the value of $1 not arriving as it should! +>> +>> Anyway, instead a very simple incremental patch is in [pproc-indent][ppi] +>> where the indentation regex is `(^[ \t]+|)` instead, which seems to work +>> very well (and the regex is multiline now as well). I'm happy to rebase the +>> changes if you want or you can just squash the four patches 1+3 => 1+1 +>> -- [[ulrik]] + [ppi]: http://github.com/engla/ikiwiki/commits/pproc-indent ## Discussion ## @@ -154,3 +322,12 @@ The page is rST-parsed once in 'scan' and once in 'htmlize' (the first to genera >> However, I think that if the cache does not work for a big load, it should >> not work at all; small loads are small so they don't matter. --ulrik +----- + +Another possiblity is using empty url for wikilinks (gitit uses this approach), for example: + + `SomePage <>`_ + +Since it uses *empty* url, I would like to call it *proposal 0* :-) --[weakish] + +[weakish]: http://weakish.pigro.net