X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/11cb599a132d87abdeb1fc7f824ccebc169c5702..486076c94367a40ff6a5e2476d98b87cd8d64f96:/doc/todo/conditional_text_based_on_ikiwiki_features.mdwn?ds=inline diff --git a/doc/todo/conditional_text_based_on_ikiwiki_features.mdwn b/doc/todo/conditional_text_based_on_ikiwiki_features.mdwn index 05c655b89..0d0f66da4 100644 --- a/doc/todo/conditional_text_based_on_ikiwiki_features.mdwn +++ b/doc/todo/conditional_text_based_on_ikiwiki_features.mdwn @@ -1,6 +1,6 @@ I'd like to see some way to conditionally include wiki text based on whether the wiki enables or disables certain features. For example, -[[helponformatting]], could use `\[[if (enabled smiley) """Also, because +[[ikiwiki/formatting]], could use `\[[!if (enabled smiley) """Also, because this wiki has the smiley plugin enabled, you can insert \[[smileys]] and some other useful symbols."""]]`, and a standard template for [[plugins]] pages could check for the given plugin name to print "enabled" or @@ -10,9 +10,9 @@ Some potentially useful conditionals: * `enabled pluginname` * `disabled pluginname` -* `any pagespec`: true if any of the pages in the [[PageSpec]] exist -* `all pagespec`: true if all of the pages in the [[PageSpec]] exist -* `no pagespec` or `none pagespec`: true if none of the pages in the [[PageSpec]] exist +* `any pagespec`: true if any of the pages in the [[ikiwiki/PageSpec]] exist +* `all pagespec`: true if all of the pages in the [[ikiwiki/PageSpec]] exist +* `no pagespec` or `none pagespec`: true if none of the pages in the [[ikiwiki/PageSpec]] exist * `thispage pagespec`: true if pagespec includes the page getting rendered (possibly one including the page with this content on it). * `sourcepage pagespec`: true if pagespec includes the page corresponding to the file actually containing this content, rather than a page including it. * `included`: true if included on another page, via [[plugins/inline]], [[plugins/sidebar]], [[plugins/contrib/navbar]], etc. @@ -24,8 +24,8 @@ keep the aliases for simplicity anyway). You also may or may not want to include an `else` clause; if so, you could label the text used if true as `then`. -Syntax could vary greatly here, both for the [[PreprocessorDirective]] and -for the condition itself. +Syntax could vary greatly here, both for the +[[ikiwiki/Directive]] and for the condition itself. > I think this is a good thing to consider, although conditionals tend to > make everything a lot more complicated, so I also want to KISS, and not @@ -52,14 +52,14 @@ for the condition itself. > As to the syntax, to fit it into standard preprocessor syntax, it would > need to look something like this: > -> \[[if test="enabled(smiley)" """foo"""]] +> \[[!if test="enabled(smiley)" """foo"""]] > > --[[Joey]] ->> [[PageSpec]] syntax seems perfect, and your proposed syntax for the `if` ->> [[PreprocessorDirective]] looks fine to me. +>> [[ikiwiki/PageSpec]] syntax seems perfect, and your proposed syntax for the `if` +>> [[ikiwiki/Directive]] looks fine to me. >> ->> [[PageSpec]]s don't give you `none` for free, since `!foo/*` as a boolean +>> [[ikiwiki/PageSpec]]s don't give you `none` for free, since `!foo/*` as a boolean >> would mean "does any page not matching `foo/*` exist", not "does `foo/*` >> match nothing"; however, I don't really care much about `none`, since I >> just threw it in while brainstorming, and I don't know any compelling use @@ -70,7 +70,7 @@ for the condition itself. >> >> A few use cases for `included`, which I would really like to see: >> ->> * On the sidebar page, you could say something like \[[if test="!included" +>> * On the sidebar page, you could say something like \[[!if test="!included" >> """This page, without this help message, appears as a sidebar on all >> pages."""]]. The help text would then only appear on the sidebar page >> itself, not the sidebar included on all pages. @@ -100,3 +100,29 @@ for the condition itself. >> typing in the if. >> >> --[[JoshTriplett]] + +This is now completely [[todo/done]]! See [[plugins/conditional]]. + +--[[Joey]] + +> You rock mightily. --[[JoshTriplett]] + +Is there a way to test features other than plugins? For example, +to add to [[ikiwiki/Markdown]] something like + + \[[!if test="enabled(multimarkdown)" then="You can also use..."]] + +(I tried it like that just to see if it would work, but I wasn't that lucky.) +--ChapmanFlack + +> No, not supported. I really think that trying to conditionalise text on a +> page for multimarkdown is a path to madness or unreadability though. +> Perhaps it would be better to have .mmdwn files that can only contain +> multimarkdown? --[[Joey]] + +>> Really, there was only one (or maybe two) pages I had in mind as appropriate +>> places for conditional text based on multimarkdown—the underlay pages +>> for 'markdown' and maybe also 'formatting', because those are the pages you +>> look at when you're trying to find out how to mark stuff up for the wiki, so +>> if MM is enabled, they need to at least mention it and have a link to the +>> MM syntax guide.--ChapmanFlack