X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/381a6cfe459d3b0090323e65c6526f5f3ba54913..2555257ade5c26bea93e0a6c45764f58cfcbf149:/doc/todo/pagespec_aliases.mdwn?ds=sidebyside diff --git a/doc/todo/pagespec_aliases.mdwn b/doc/todo/pagespec_aliases.mdwn index 09155754c..43714dc50 100644 --- a/doc/todo/pagespec_aliases.mdwn +++ b/doc/todo/pagespec_aliases.mdwn @@ -166,3 +166,21 @@ Unfortunately I haven't figured out how to do the dependencies - I'd really appr > > Cool! I like the caching idea. I'm not sure about the name. I don't like defining > > stuff in pages, but I appreciate this is a matter of taste, and would be happy with > > supporting both. — [[Jon]] + +>>> I've now gone and completely re-done "subset" so that it is less like an alias, but it a bit clearer and simpler: +>>> instead of having a separate "match_" function for every alias, I simply have one function, "match_subset" +>>> which takes the name of the subset. Thus a \[[!subset name="foo"...]] would be called `subset(foo)` rather than `foo()`. + +>>> There are a few reasons for this:
+>>> (a) it's more secure not to be evaluating code on the fly
+>>> (b) it's simpler
+>>> (c) (and this was my main reason) it makes it possible to do caching without having to have a separate "subset" argument. +>>> I've done a bit of a hack for this: basically, the PageSpec is checked to see if the very start of the PageSpec is `subset(foo) and` or if the whole pagespec is just `subset(foo)` and if either of those is true, then it does the subset caching stuff. +>>> The reason I check for "and" is that if it is "subset(foo) or something" then it would be an error to use the subset cache in that case. +>>> The reason I just check the start of the PageSpec is because I don't want to have to do complex parsing of the PageSpec. + +>>> As for defining subsets in the config rather than on pages, I perfectly understand that desire, and I could probably add that in. + +>>> As for the name "subset"... well, it's even less like an alias now, and "alias" is already a reserved name. What other names would you suggest? + +>>>--[[KathrynAndersen]]