+[[!tag patch patch/core]]
+
I like the idea of [[tips/integrated_issue_tracking_with_ikiwiki]], and I do so on several wikis. However, as far as I can tell, ikiwiki has no functionality which can represent dependencies between bugs and allow pagespecs to select based on dependencies. For instance, I can't write a pagespec which selects all bugs with no dependencies on bugs not marked as done. --[[JoshTriplett]]
> I started having a think about this. I'm going to start with the idea that expanding
>
>> I thought about this briefly, and got about that far.. glad you got
>> further. :-) --[[Joey]]
+
+>> Or, one [[!taglink could_also_refer|pagespec_in_DL_style]] to the language of [[!wikipedia description logics]]: their formulas actually define classes of objects through quantified relations to other classes. --Ivan Z.
>
> Another option would be go with a more functional syntax. The concept here would
> be to allow a pagespec to appear in a 'pagespec function' anywhere a page can. e.g.
>> So, equivilant example: `define(bugs, bugs/* and !*/Discussion) and define(openbugs, bugs and !link(done)) and openbugs and !link(openbugs)`
>>
+
>> Re recursion, it is avoided.. but building a pagespec that is O(N^X) where N is the
>> number of pages in the wiki is not avoided. Probably need to add DOS prevention.
>> --[[Joey]]
>>>> Yeah, guess that'd work. :-)
-> One quick further thought. All the above discussion assumes that 'dependency' is the
+> <a id="another_kind_of_links" />One quick further thought. All the above discussion assumes that 'dependency' is the
> same as 'links to', which is not really true. For example, you'd like to be able to say
> "This bug does not depend upon [ [ link to other bug ] ]" and not have a dependency.
> Without having different types of links, I don't see how this would be possible.
>
> -- [[Will]]
+>> I saw that this issue is targeted at by the work on [[structured page data#another_kind_of_links]]. --Ivan Z.
+
+>>> It's fixed now; links can have a type, such as "tag", or "dependency",
+>>> and pagespecs can match links of a given typo. --[[Joey]]
+
Okie - I've had a quick attempt at this. Initial patch attached. This one doesn't quite work.
And there is still a lot of debugging stuff in there.
>>> I think this is ready for people other than me to have a play. It is not well enough tested to commit just yet.
>>> -- [[Will]]
-----
+I've lost track of the indent level, so I'm going back to not indented - I think this is a working [[patch]] taking into
+account all comments above (which doesn't mean it is above reproach :) ). --[[Will]]
+
+> Very belated code review of last version of the patch:
+>
+> * `is_globlist` is no longer needed
+
+>> Good :)
+
+> * I don't understand why the pagespec match regexp is changed
+> from having flags `igx` to `ixgs`. Don't see why you
+> want `.` to match '\n` in it, and don't see any `.` in the regexp
+> anyway?
+
+>> Because you have to define all the named pagespecs in the pagespec, you sometimes end up with very long pagespecs. I found it useful to split them over multiple lines. That didn't work at one point and I added the 's' to make it work. I may have further altered the regex since then to make the 's' redundant. Remove it and see if multi-line pagespecs still work. :)
+
+>>> Well, I can tell you that multi-line pagespecs are supported w/o
+>>> your patch .. I use them all the time. The reason I find your
+>>> use of `/s` unlikely is because without it `\s` already matches
+>>> a newline. Only if you want to treat a newline as non-whitespace
+>>> is `/s` typically necessary. --[[Joey]]
+
+> * Some changes of `@_` to `%params` in `pagespec_makeperl` do not
+> make sense to me. I don't see where \%params is defined and populated,
+> except with `\$params{specFunc}`.
+
+>> I'm not a perl hacker. This was a mighty battle for me to get going.
+>> There is probably some battlefield carnage from my early struggles
+>> learning perl left here. Part of this is that @_ / @params already
+>> existed as a way of passing in extra parameters. I didn't want to
+>> pollute that top level namespace - just at my own parameter (a hash)
+>> which contained the data I needed.
+
+>>> I think I understand how the various `%params`
+>>> (there's not just one) work in your code now, but it's really a mess.
+>>> Explaining it in words would take pages.. It could be fixed by,
+>>> in `pagespec_makeperl` something like:
+>>>
+>>> my %specFuncs;
+>>> push @_, specFuncs => \%specFuncs;
+>>>
+>>> With that you have the hash locally available for populating
+>>> inside `pagespec_makeperl`, and when the `match_*` functions
+>>> are called the same hash data will be available inside their
+>>> `@_` or `%params`. No need to change how the functions are called
+>>> or do any of the other hacks.
+>>>
+>>> Currently, specFuncs is populated by building up code
+>>> that recursively calls `pagespec_makeperl`, and is then
+>>> evaluated when the pagespec gets evaluated. My suggested
+>>> change to `%params` will break that, but that had to change
+>>> anyway.
+>>>
+>>> It probably has a security hole, and is certianly inviting
+>>> one, since the pagespec definition is matched by a loose regexp (`.*`)
+>>> and then subject to string interpolation before being evaluated
+>>> inside perl code. I recently changed ikiwiki to never interpolate
+>>> user-supplied strings when translating pagespecs, and that
+>>> needs to happen here too. The obvious way, it seems to me,
+>>> is to not generate perl code, but just directly run perl code that
+>>> populates specFuncs.
+
+>>>> I don't think this is as bad as you make out, but your addition of the
+>>>> data array will break with the recursion my patch adds in pagespec_makeperl.
+>>>> To fix that I'll need to pass a reference to that array into pagespec_makeperl.
+>>>> I think I can then do the same thing to $params{specFuncs}. -- [[Will]]
+
+>>>>> You're right -- I did not think the recursive case through.
+>>>>> --[[Joey]]
+
+> * Seems that the only reason `match_glob` has to check for `~` is
+> because when a named spec appears in a pagespec, it is translated
+> to `match_glob("~foo")`. If, instead, `pagespec_makeperl` checked
+> for named specs, it could convert them into `check_named_spec("foo")`
+> and avoid that ugliness.
+
+>> Yeah - I wanted to make named specs syntactically different on my first pass. You are right in that this could be made a fallback - named specs always override pagenames.
+
+> * The changes to `match_link` seem either unecessary, or incomplete.
+> Shouldn't it check for named specs and call
+> `check_named_spec_existential`?
+
+>> An earlier version did. Then I realised it wasn't actually needed in that case - match_link() already included a loop that was like a type of existential matching. Each time through the loop it would
+>> call match_glob(). match_glob() in turn will handle the named spec. I tested this version briefly and it seemed to work. I remember looking at this again later and wondering if I had mis-understood
+>> some of the logic in match_link(), which might mean there are cases where you would need an explicit call to check_named_spec_existential() - I never checked it properly after having that thought.
+
+>>> In the common case, `match_link` does not call `match_glob`,
+>>> because the link target it is being asked to check for is a single
+>>> page name, not a glob.
+
+>>>> A named pagespec should fall into the glob case. These two pagespecs should be the same:
+
+ link(a*)
+
+>>>> and
+
+ define(aStar, a*) and link(~aStar)
+
+>>>> In the first case, we want the pagespec to match any page that links to a page matching the glob.
+>>>> In the second case, we want the pagespec to match any page that links to a page matching the named spec.
+>>>> match_link() was already doing existential part. The patches to this code were simply to remove the `lc()`
+>>>> call from the named pagespec name. Can that `lc` be removed entirely? -- [[Will]]
+
+>>>>> I think we could get rid of it. `bestlink` will lc it itself
+>>>>> if the uppercase version does not exist; `match_glob` matches
+>>>>> insensitively.
+>>>>> --[[Joey]]
+
+> * Generally, the need to modify `match_*` functions so that they
+> check for and handle named pagespecs seems suboptimal, if
+> only because there might be others people may want to use named
+> pagespecs with. It would be possible to move this check
+> to `pagespec_makeperl`, by having it check if the parameter
+> passed to a pagespec function looked like a named pagespec.
+> The only issue is that some pagespec functions take a parameter
+> that is not a page name at all, and it could be weird
+> if such a parameter were accidentially interpreted as a named
+> pagespec. (But, that seems unlikely to happen.)
+
+>> Possibly. I'm not sure which I prefer between the current solution and that one. Each have advantages and disadvantages.
+>> It really isn't much code for the match functions to add a call to check_named_spec_existential().
+
+>>> But if a plugin adds its own match function, it has
+>>> to explicitly call that code to support named pagespecs.
+
+>>>> Yes, and it can do that in just three lines of code. But if we automatically check for named pagespecs all the time we
+>>>> potentially break any matching function that doesn't accept pages, or wants to use multiple arguments.
+
+>>>>> 3 lines of code, plus the functions called become part of the API,
+>>>>> don't forget about that..
+>>>>>
+>>>>> Yes, I think that is the tradeoff, the question is whether to export
+>>>>> the additional complexity needed for that flexability.
+>>>>>
+>>>>> I'd be suprised if multiple argument pagespecs become necessary..
+>>>>> with the exception of this patch there has been no need for them yet.
+>>>>>
+>>>>> There are lots of pagespecs that take data other than pages,
+>>>>> indeed, that's really the common case. So far, none of them
+>>>>> seem likely to take data that starts with a `~`. Perhaps
+>>>>> the thing to do would be to check if `~foo` is a known,
+>>>>> named pagespec, and if not, just pass it through unchanged.
+>>>>> Then there's little room for ambiguity, and this also allows
+>>>>> pagespecs like `glob(~foo*)` to match the literal page `~foo`.
+>>>>> (It will make pagespec_merge even harder tho.. see below.)
+>>>>> --[[Joey]]
+
+>>>>>> I've already used multi-argument pagespec match functions in
+>>>>>> my data plugin. It is used for having different types of links. If
+>>>>>> you want to have multiple types of links, then the match function
+>>>>>> for them needs to take both the link name and the link type.
+>>>>>> I'm trying to think of a way we could have both - automatically
+>>>>>> handle the existential case unless the function indicates somehow
+>>>>>> that it'll do it itself. Any ideas? -- [[Will]]
+
+> * I need to check if your trick to avoid infinite recursion
+> works if there are two named specs that recursively
+> call one-another. I suspect it does, but will test this
+> myself..
+
+>> It worked for me. :)
+
+> * I also need to verify if memoizing the named pagespecs has
+> really guarded against very expensive pagespecs DOSing the wiki..
+
+> --[[Joey]]
+
+>> There is one issue that I've been thinking about that I haven't raised anywhere (or checked myself), and that is how this all interacts with page dependencies.
+>>
+>>> I've moved the discussion of that to [[dependency_types]]. --[[Joey]]
+>>
+>> I'm not sure anymore that the `pagespec_merge` function will continue to work in all cases.
+
+>>> The problem I can see there is that if two pagespecs
+>>> get merged and both use `~foo` but define it differently,
+>>> then the second definition might be used at a point when
+>>> it shouldn't (but I haven't verified that really happens).
+>>> That could certianly be a show-stopper. --[[Joey]]
+
+>>>> I think this can happen in the new closure based code. I don't think this could happen in the old code. -- [[Will]]
+
+>>>> Even if that works, this is a good argument for having a syntactic difference between named pagespecs and normal pages.
+>>>> If you're joining two pagespecs with 'or', you don't want a named pagespec in the first part overriding a page name in the
+>>>> second part. Oh, and I assume 'or' has the right operator precedence that "a and b or c" is "(a and b) or c", and not "a and (b or c)" -- [[Will]]
+
+>>>>> Looks like its bracketed in the code anyway... -- [[Will]]
+
+>>>> Perhaps the thing to do is to have a `clear_defines()`
+>>>> function, then merging `A` and `B` yields `(A) or (clear_defines() and (B))`
+>>>> That would deal with both the cases where `A` and `B` differently
+>>>> define `~foo` as well as with the case where `A` defines `~foo` while
+>>>> `B` uses it to refer to a literal page.
+>>>> --[[Joey]]
+
+>>>>> I don't think this will work with the new patch, and I don't think it was needed with the old one.
+>>>>> Under the old patch, pagespec_makeperl() generated a string of unevaluated, self-contained, perl
+>>>>> code. When a new named pagespec was defined, a recursive call was made to get the perl code
+>>>>> for the pagespec, and then that code was used to add something like `$params{specFuncs}->{name} = sub {recursive code} and `
+>>>>> to the result of the calling function. This means that at pagespec testing time, when this code is executed, the
+>>>>> specFuncs hash is built up as the pagespec is checked. In the case of the 'or' used above, later redefinitions of
+>>>>> a named pagespec would have redefined the specFunc at the right time. It should have just worked. However...
+
+>>>>> Since my original patch, you started using closures for security reasons (and I can see the case for that). Unfortunately this
+>>>>> means that the generated perl code is no longer self-contained - it needs to be evaluated in the same closure it was generated
+>>>>> so that it has access to the data array. To make this work with the recursive call I had two options: a) make the data array a
+>>>>> reference that I pass around through the pagespec_makeperl() functions and have available when the code is finally evaluated
+>>>>> in pagespec_translate(), or b) make sure that each pagespec is evaluated in its correct closure and a perl function is returned, not a
+>>>>> string containing unevaluated perl code.
+
+>>>>> I went with option b). I did it in such a way that the hash of specfuncs is built up at translation time, not at execution time. This
+>>>>> means that with the new code you can call specfuncs that get defined out of order:
+
+ ~test and define(~test, blah)
+
+>>>>> but it also means that using a simple 'or' to join two pagespecs wont work. If you do something like this:
+
+ ~test and define(~test, foo) and define(~test, baz)
+
+>>>>> then the last definition (baz) takes precedence.
+>>>>> In the process of writing this I think I've come up with a way to change this back the way it was, still using closures. -- [[Will]]
+
+>>> My [[remove-pagespec-merge|should_optimise_pagespecs]] branch has now
+>>> solved all this by deleting the offending function :-) --[[smcv]]
+
+
+
+Patch updated to use closures rather than inline generated code for named pagespecs. Also includes some new use of ErrorReason where appropriate. -- [[Will]]
+
+> * Perl really doesn't need forward declarations, honest!
+
+>> It complained (warning, not error) when I didn't use the forward declaration. :(
+
+> * I have doubts about memoizing the anonymous sub created by
+> `pagespec_translate`.
+
+>> This is there explicitly to make sure that runtime is polynomial and not exponential.
+
+> * Think where you wrote `+{}` you can just write `{}`
+
+>> Possibly :) -- [[Will]]
-diff --git a/IkiWiki.pm b/IkiWiki.pm
-index e476521..532aaf5 100644
---- a/IkiWiki.pm
-+++ b/IkiWiki.pm
-@@ -1524,7 +1524,16 @@ sub globlist_to_pagespec ($) { #{{{
-
- sub is_globlist ($) { #{{{
- my $s=shift;
-- return ( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" );
-+ return ! ($s =~ /
-+ (^\s*
-+ [^\s\(]+ # single item
-+ (\( # possibly with parens after it
-+ ([^\)]* # with stuff inside those parens
-+ (\([^\)]*\))*)* # maybe even nested parens
-+ \))?\s*$
-+ ) |
-+ (\s and \s) | (\s or \s) # or we find 'and' or 'or' somewhere
-+ /x);
- } #}}}
-
- sub safequote ($) { #{{{
-@@ -1605,7 +1614,7 @@ sub pagespec_merge ($$) { #{{{
- return "($a) or ($b)";
- } #}}}
-
--sub pagespec_translate ($) { #{{{
-+sub pagespec_makeperl ($) { #{{{
- my $spec=shift;
-
- # Support for old-style GlobLists.
-@@ -1624,9 +1633,11 @@ sub pagespec_translate ($) { #{{{
- |
- \) # )
- |
-- \w+\([^\)]*\) # command(params)
-+ define\(\s*~\w+\s*,((\([^\(\)]*\)) | ([^\(\)]+))+\) # define(~specName, spec) - spec can contain parens 1 deep
-+ |
-+ \w+\([^\(\)]*\) # command(params) - params cannot contain parens
- |
-- [^\s()]+ # any other text
-+ [^\s\(\)]+ # any other text
- )
- \s* # ignore whitespace
- }igx) {
-@@ -1640,16 +1651,23 @@ sub pagespec_translate ($) { #{{{
- elsif ($word eq "(" || $word eq ")" || $word eq "!") {
- $code.=' '.$word;
- }
-+ elsif ($word =~ /^define\(\s*~(\w+)\s*,(.*)\)$/) {
-+ $code .= " (\$specFuncsRef->{$1}=";
-+ $code .= "memoize(";
-+ $code .= &pagespec_makeperl($2);
-+ $code .= ")";
-+ $code .= ") ";
-+ }
- elsif ($word =~ /^(\w+)\((.*)\)$/) {
- if (exists $IkiWiki::PageSpec::{"match_$1"}) {
-- $code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \@_)";
-+ $code.="IkiWiki::PageSpec::match_$1(\$specFuncsRef, \$page, ".safequote($2).", \@_)";
- }
- else {
- $code.=' 0';
- }
- }
- else {
-- $code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \@_)";
-+ $code.=" IkiWiki::PageSpec::match_glob(\$specFuncsRef, \$page, ".safequote($word).", \@_)";
- }
- }
-
-@@ -1657,8 +1675,16 @@ sub pagespec_translate ($) { #{{{
- $code=0;
- }
-
-+ return 'sub { my $specFuncsRef=shift; my $page=shift; '.$code.' }';
-+} #}}}
-+
-+sub pagespec_translate ($) { #{{{
-+ my $spec=shift;
-+
-+ my $code = pagespec_makeperl($spec);
-+
- no warnings;
-- return eval 'sub { my $page=shift; '.$code.' }';
-+ return eval $code;
- } #}}}
-
- sub pagespec_match ($$;@) { #{{{
-@@ -1673,7 +1699,7 @@ sub pagespec_match ($$;@) { #{{{
-
- my $sub=pagespec_translate($spec);
- return IkiWiki::FailReason->new("syntax error in pagespec \"$spec\"") if $@;
-- return $sub->($page, @params);
-+ return $sub->({}, $page, @params);
- } #}}}
-
- sub pagespec_valid ($) { #{{{
-@@ -1722,11 +1748,71 @@ sub new { #{{{
-
- package IkiWiki::PageSpec;
-
--sub match_glob ($$;@) { #{{{
-+sub check_named_spec($$$;@) {
-+ my $specFuncsRef=shift;
-+ my $page=shift;
-+ my $specName=shift;
-+ my %params=@_;
-+
-+ return IkiWiki::FailReason->new("Named page spec '$specName' is not valid")
-+ unless (substr($specName, 0, 1) eq '~');
-+
-+ $specName = substr($specName, 1);
-+
-+ if (exists $specFuncsRef->{$specName}) {
-+ # remove the named spec from the spec refs
-+ # when we recurse to avoid infinite recursion
-+ my $sub = $specFuncsRef->{$specName};
-+ $specFuncsRef->{$specName} = undef;
-+ my $result = $sub->($specFuncsRef, $page, %params);
-+ $specFuncsRef->{$specName} = $sub;
-+ return $result;
-+ } else {
-+ return IkiWiki::FailReason->new("Page spec '$specName' does not exist");
-+ }
-+}
-+
-+sub check_named_spec_existential($$$$;@) {
-+ my $specFuncsRef=shift;
-+ my $page=shift;
-+ my $specName=shift;
-+ my $funcref=shift;
-+ my %params=@_;
-+
-+ return IkiWiki::FailReason->new("Named page spec '$specName' is not valid")
-+ unless (substr($specName, 0, 1) eq '~');
-+ $specName = substr($specName, 1);
-+
-+ if (exists $specFuncsRef->{$specName}) {
-+ # remove the named spec from the spec refs
-+ # when we recurse to avoid infinite recursion
-+ my $sub = $specFuncsRef->{$specName};
-+ $specFuncsRef->{$specName} = undef;
-+
-+ foreach my $nextpage (keys %IkiWiki::pagesources) {
-+ if ($sub->($specFuncsRef, $nextpage, %params)) {
-+ my $tempResult = $funcref->($specFuncsRef, $page, $nextpage, %params);
-+ return $tempResult if ($tempResult);
-+ }
-+ }
-+
-+ $specFuncsRef->{$specName} = $sub;
-+ return IkiWiki::FailReason->new("No page in spec '$specName' was successfully matched");
-+ } else {
-+ return IkiWiki::FailReason->new("Named page spec '$specName' does not exist");
-+ }
-+}
-+
-+sub match_glob ($$$;@) { #{{{
-+ my $specFuncsRef=shift;
- my $page=shift;
- my $glob=shift;
- my %params=@_;
-
-+ if (substr($glob, 0, 1) eq '~') {
-+ return check_named_spec($specFuncsRef, $page, $glob);
-+ }
-+
- my $from=exists $params{location} ? $params{location} : '';
-
- # relative matching
-@@ -1750,17 +1836,23 @@ sub match_glob ($$;@) { #{{{
- }
- } #}}}
-
--sub match_internal ($$;@) { #{{{
-- return match_glob($_[0], $_[1], @_, internal => 1)
-+sub match_internal ($$$;@) { #{{{
-+ return match_glob(shift, shift, shift, @_, internal => 1)
- } #}}}
-
--sub match_link ($$;@) { #{{{
-+sub match_link ($$$;@) { #{{{
-+ my $specFuncsRef=shift;
- my $page=shift;
-- my $link=lc(shift);
-+ my $fulllink=shift;
-+ my $link=lc($fulllink);
- my %params=@_;
-
-- my $from=exists $params{location} ? $params{location} : '';
-+ if (substr($fulllink, 0, 1) eq '~') {
-+ return check_named_spec_existential($specFuncsRef, $page, $fulllink, \&match_link);
-+ }
-
-+ my $from=exists $params{location} ? $params{location} : '';
-+
- # relative matching
- if ($link =~ m!^\.! && defined $from) {
- $from=~s#/?[^/]+$##;
-@@ -1778,17 +1870,21 @@ sub match_link ($$;@) { #{{{
- }
- else {
- return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
-- if match_glob($p, $link, %params);
-+ if match_glob($specFuncsRef, $p, $link, %params);
- }
- }
- return IkiWiki::FailReason->new("$page does not link to $link");
- } #}}}
-
--sub match_backlink ($$;@) { #{{{
-- return match_link($_[1], $_[0], @_);
-+sub match_backlink ($$$;@) { #{{{
-+ my $specFuncsRef=shift;
-+ my $page=shift;
-+ my $backlink=shift;
-+ return match_link($specFuncsRef, $backlink, $page, @_);
- } #}}}
-
--sub match_created_before ($$;@) { #{{{
-+sub match_created_before ($$$;@) { #{{{
-+ my $specFuncsRef=shift;
- my $page=shift;
- my $testpage=shift;
-
-@@ -1805,7 +1901,8 @@ sub match_created_before ($$;@) { #{{{
- }
- } #}}}
-
--sub match_created_after ($$;@) { #{{{
-+sub match_created_after ($$$;@) { #{{{
-+ my $specFuncsRef=shift;
- my $page=shift;
- my $testpage=shift;
-
-@@ -1822,8 +1919,12 @@ sub match_created_after ($$;@) { #{{{
- }
- } #}}}
-
--sub match_creation_day ($$;@) { #{{{
-- if ((gmtime($IkiWiki::pagectime{shift()}))[3] == shift) {
-+sub match_creation_day ($$$;@) { #{{{
-+ shift;
-+ my $page=shift;
-+ my $time=shift;
-+
-+ if ((gmtime($IkiWiki::pagectime{$page}))[3] == $time) {
- return IkiWiki::SuccessReason->new('creation_day matched');
- }
- else {
-@@ -1831,8 +1932,12 @@ sub match_creation_day ($$;@) { #{{{
- }
- } #}}}
-
--sub match_creation_month ($$;@) { #{{{
-- if ((gmtime($IkiWiki::pagectime{shift()}))[4] + 1 == shift) {
-+sub match_creation_month ($$$;@) { #{{{
-+ shift;
-+ my $page=shift;
-+ my $time=shift;
-+
-+ if ((gmtime($IkiWiki::pagectime{$page}))[4] + 1 == $time) {
- return IkiWiki::SuccessReason->new('creation_month matched');
- }
- else {
-@@ -1840,8 +1945,12 @@ sub match_creation_month ($$;@) { #{{{
- }
- } #}}}
-
--sub match_creation_year ($$;@) { #{{{
-- if ((gmtime($IkiWiki::pagectime{shift()}))[5] + 1900 == shift) {
-+sub match_creation_year ($$$;@) { #{{{
-+ shift;
-+ my $page=shift;
-+ my $time=shift;
-+
-+ if ((gmtime($IkiWiki::pagectime{$page}))[5] + 1900 == $time) {
- return IkiWiki::SuccessReason->new('creation_year matched');
- }
- else {
-diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm
-index f1f792a..a410e48 100644
---- a/IkiWiki/Plugin/attachment.pm
-+++ b/IkiWiki/Plugin/attachment.pm
-@@ -291,7 +291,8 @@ sub attachment_list ($) { #{{{
-
- package IkiWiki::PageSpec;
-
--sub match_user ($$;@) { #{{{
-+sub match_user ($$$;@) { #{{{
-+ shift;
- shift;
- my $user=shift;
- my %params=@_;
-@@ -311,7 +312,8 @@ sub match_user ($$;@) { #{{{
- }
- } #}}}
-
--sub match_ip ($$;@) { #{{{
-+sub match_ip ($$$;@) { #{{{
-+ shift;
- shift;
- my $ip=shift;
- my %params=@_;
-diff --git a/IkiWiki/Plugin/conditional.pm b/IkiWiki/Plugin/conditional.pm
-index 7716fce..c0dbb50 100644
---- a/IkiWiki/Plugin/conditional.pm
-+++ b/IkiWiki/Plugin/conditional.pm
-@@ -70,7 +70,8 @@ sub preprocess_if (@) { #{{{
-
- package IkiWiki::PageSpec;
-
--sub match_enabled ($$;@) { #{{{
-+sub match_enabled ($$$;@) { #{{{
-+ shift;
- shift;
- my $plugin=shift;
-
-@@ -83,13 +84,14 @@ sub match_enabled ($$;@) { #{{{
- }
- } #}}}
-
--sub match_sourcepage ($$;@) { #{{{
-+sub match_sourcepage ($$$;@) { #{{{
-+ my $specFuncsRef=shift;
- shift;
- my $glob=shift;
- my %params=@_;
-
- return IkiWiki::FailReason->new("cannot match sourcepage") unless exists $params{sourcepage};
-- if (match_glob($params{sourcepage}, $glob, @_)) {
-+ if (match_glob($specFuncsRef, $params{sourcepage}, $glob, @_)) {
- return IkiWiki::SuccessReason->new("sourcepage matches $glob");
- }
- else {
-@@ -97,13 +99,14 @@ sub match_sourcepage ($$;@) { #{{{
- }
- } #}}}
-
--sub match_destpage ($$;@) { #{{{
-+sub match_destpage ($$$;@) { #{{{
-+ my $specFuncsRef=shift;
- shift;
- my $glob=shift;
- my %params=@_;
-
- return IkiWiki::FailReason->new("cannot match destpage") unless exists $params{destpage};
-- if (match_glob($params{destpage}, $glob, @_)) {
-+ if (match_glob($specFuncsRef, $params{destpage}, $glob, @_)) {
- return IkiWiki::SuccessReason->new("destpage matches $glob");
- }
- else {
-@@ -111,7 +114,8 @@ sub match_destpage ($$;@) { #{{{
- }
- } #}}}
-
--sub match_included ($$;@) { #{{{
-+sub match_included ($$$;@) { #{{{
-+ shift;
- shift;
- shift;
- my %params=@_;
-diff --git a/IkiWiki/Plugin/filecheck.pm b/IkiWiki/Plugin/filecheck.pm
-index 6f71be3..3592342 100644
---- a/IkiWiki/Plugin/filecheck.pm
-+++ b/IkiWiki/Plugin/filecheck.pm
-@@ -66,7 +66,8 @@ sub humansize ($) { #{{{
-
- package IkiWiki::PageSpec;
-
--sub match_maxsize ($$;@) { #{{{
-+sub match_maxsize ($$$;@) { #{{{
-+ shift;
- my $page=shift;
- my $maxsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
- if ($@) {
-@@ -87,7 +88,8 @@ sub match_maxsize ($$;@) { #{{{
- }
- } #}}}
-
--sub match_minsize ($$;@) { #{{{
-+sub match_minsize ($$$;@) { #{{{
-+ shift;
- my $page=shift;
- my $minsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
- if ($@) {
-@@ -108,7 +110,8 @@ sub match_minsize ($$;@) { #{{{
- }
- } #}}}
-
--sub match_mimetype ($$;@) { #{{{
-+sub match_mimetype ($$$;@) { #{{{
-+ shift;
- my $page=shift;
- my $wanted=shift;
-
-@@ -138,7 +141,8 @@ sub match_mimetype ($$;@) { #{{{
- }
- } #}}}
-
--sub match_virusfree ($$;@) { #{{{
-+sub match_virusfree ($$$;@) { #{{{
-+ shift;
- my $page=shift;
- my $wanted=shift;
-
-@@ -180,7 +184,7 @@ sub match_virusfree ($$;@) { #{{{
- }
- } #}}}
-
--sub match_ispage ($$;@) { #{{{
-+sub match_ispage ($$$;@) { #{{{
- my $filename=shift;
-
- if (defined IkiWiki::pagetype($filename)) {
-diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm
-index b2c85c8..788f248 100644
---- a/IkiWiki/Plugin/meta.pm
-+++ b/IkiWiki/Plugin/meta.pm
-@@ -263,6 +263,7 @@ sub pagetemplate (@) { #{{{
-
- sub match { #{{{
- my $field=shift;
-+ shift;
- my $page=shift;
-
- # turn glob into a safe regexp
-@@ -291,23 +292,23 @@ sub match { #{{{
-
- package IkiWiki::PageSpec;
-
--sub match_title ($$;@) { #{{{
-+sub match_title ($$$;@) { #{{{
- IkiWiki::Plugin::meta::match("title", @_);
- } #}}}
-
--sub match_author ($$;@) { #{{{
-+sub match_author ($$$;@) { #{{{
- IkiWiki::Plugin::meta::match("author", @_);
- } #}}}
-
--sub match_authorurl ($$;@) { #{{{
-+sub match_authorurl ($$$;@) { #{{{
- IkiWiki::Plugin::meta::match("authorurl", @_);
- } #}}}
-
--sub match_license ($$;@) { #{{{
-+sub match_license ($$$;@) { #{{{
- IkiWiki::Plugin::meta::match("license", @_);
- } #}}}
-
--sub match_copyright ($$;@) { #{{{
-+sub match_copyright ($$$;@) { #{{{
- IkiWiki::Plugin::meta::match("copyright", @_);
- } #}}}
-
----
-diff --git a/IkiWiki.pm b/IkiWiki.pm
-index e476521..0751d56 100644
---- a/IkiWiki.pm
-+++ b/IkiWiki.pm
-@@ -1524,7 +1524,16 @@ sub globlist_to_pagespec ($) { #{{{
-
- sub is_globlist ($) { #{{{
- my $s=shift;
-- return ( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" );
-+ return ! ($s =~ /
-+ (^\s*
-+ [^\s(]+ # single item
-+ (\( # possibly with parens after it
-+ ([^)]* # with stuff inside those parens
-+ (\([^)]*\))*)* # maybe even nested parens
-+ \))?\s*$
-+ ) |
-+ (\s and \s) | (\s or \s) # or we find 'and' or 'or' somewhere
-+ /x);
- } #}}}
-
- sub safequote ($) { #{{{
-@@ -1605,7 +1614,7 @@ sub pagespec_merge ($$) { #{{{
- return "($a) or ($b)";
- } #}}}
-
--sub pagespec_translate ($) { #{{{
-+sub pagespec_makeperl ($) { #{{{
- my $spec=shift;
-
- # Support for old-style GlobLists.
-@@ -1624,7 +1633,9 @@ sub pagespec_translate ($) { #{{{
- |
- \) # )
- |
-- \w+\([^\)]*\) # command(params)
-+ define\(\s*~\w+\s*,((\([^()]*\)) | ([^()]+))+\) # define(~specName, spec) - spec can contain parens 1 deep
-+ |
-+ \w+\([^()]*\) # command(params) - params cannot contain parens
- |
- [^\s()]+ # any other text
- )
-@@ -1640,16 +1651,23 @@ sub pagespec_translate ($) { #{{{
- elsif ($word eq "(" || $word eq ")" || $word eq "!") {
- $code.=' '.$word;
- }
-+ elsif ($word =~ /^define\(\s*~(\w+)\s*,(.*)\)$/) {
-+ $code .= " (\$params{specFuncs}->{$1}="; # (exists \$params{specFuncs}) &&
-+ $code .= "memoize(";
-+ $code .= &pagespec_makeperl($2);
-+ $code .= ")";
-+ $code .= ") ";
-+ }
- elsif ($word =~ /^(\w+)\((.*)\)$/) {
- if (exists $IkiWiki::PageSpec::{"match_$1"}) {
-- $code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \@_)";
-+ $code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \%params)";
- }
- else {
- $code.=' 0';
- }
- }
- else {
-- $code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \@_)";
-+ $code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \%params)";
- }
- }
-
-@@ -1657,23 +1675,36 @@ sub pagespec_translate ($) { #{{{
- $code=0;
- }
-
-+ return 'sub { my $page=shift; my %params = @_; '.$code.' }';
-+} #}}}
-+
-+sub pagespec_translate ($) { #{{{
-+ my $spec=shift;
-+
-+ my $code = pagespec_makeperl($spec);
-+
-+ print "Spec '$spec' generated code '$code'\n";
-+
- no warnings;
-- return eval 'sub { my $page=shift; '.$code.' }';
-+ return eval $code;
- } #}}}
-
- sub pagespec_match ($$;@) { #{{{
- my $page=shift;
- my $spec=shift;
- my @params=@_;
-+ my %params=@_;
-
- # Backwards compatability with old calling convention.
- if (@params == 1) {
-- unshift @params, 'location';
-+ %params = { location => $params[1] };
- }
-
-+ $params{specFuncs} = {} unless exists $params{specFuncs};
-+
- my $sub=pagespec_translate($spec);
- return IkiWiki::FailReason->new("syntax error in pagespec \"$spec\"") if $@;
-- return $sub->($page, @params);
-+ return $sub->($page, %params);
- } #}}}
-
- sub pagespec_valid ($) { #{{{
-@@ -1722,11 +1753,84 @@ sub new { #{{{
-
- package IkiWiki::PageSpec;
-
-+sub check_named_spec($$;@) {
-+ my $page=shift;
-+ my $specName=shift;
-+ my %params=@_;
-+
-+ print "Checking named spec $specName\n";
-+
-+ error("Unable to find specFuncs in params to check_named_spec()!") unless exists $params{specFuncs};
-+ my $specFuncsRef=$params{specFuncs};
-+
-+ print "A\n";
-+
-+ return IkiWiki::FailReason->new("Named page spec '$specName' is not valid")
-+ unless (substr($specName, 0, 1) eq '~');
-+
-+ $specName = substr($specName, 1);
-+
-+ if (exists $specFuncsRef->{$specName}) {
-+ # remove the named spec from the spec refs
-+ # when we recurse to avoid infinite recursion
-+ my $sub = $specFuncsRef->{$specName};
-+ $specFuncsRef->{$specName} = undef;
-+ my $result = $sub->($specFuncsRef, $page, %params);
-+ $specFuncsRef->{$specName} = $sub;
-+ return $result;
-+ } else {
-+ print "Invalid specname\n";
-+ return IkiWiki::FailReason->new("Page spec '$specName' does not exist");
-+ }
-+}
-+
-+sub check_named_spec_existential($$$;@) {
-+ my $page=shift;
-+ my $specName=shift;
-+ my $funcref=shift;
-+ my %params=@_;
-+
-+ print "(Existential) Checking named spec $specName\n";
-+
-+ error("Unable to find specFuncs in params to check_named_spec()!") unless exists $params{specFuncs};
-+ my $specFuncsRef=$params{specFuncs};
-+
-+ print "B\n";
-+
-+ return IkiWiki::FailReason->new("Named page spec '$specName' is not valid")
-+ unless (substr($specName, 0, 1) eq '~');
-+ $specName = substr($specName, 1);
-+
-+ if (exists $specFuncsRef->{$specName}) {
-+ # remove the named spec from the spec refs
-+ # when we recurse to avoid infinite recursion
-+ my $sub = $specFuncsRef->{$specName};
-+ $specFuncsRef->{$specName} = undef;
-+
-+ foreach my $nextpage (keys %IkiWiki::pagesources) {
-+ if ($sub->($specFuncsRef, $nextpage, %params)) {
-+ my $tempResult = $funcref->($page, $nextpage, %params);
-+ return $tempResult if ($tempResult);
-+ }
-+ }
-+
-+ $specFuncsRef->{$specName} = $sub;
-+ return IkiWiki::FailReason->new("No page in spec '$specName' was successfully matched");
-+ } else {
-+ print "Invalid specname\n";
-+ return IkiWiki::FailReason->new("Named page spec '$specName' does not exist");
-+ }
-+}
-+
- sub match_glob ($$;@) { #{{{
- my $page=shift;
- my $glob=shift;
- my %params=@_;
-
-+ if (substr($glob, 0, 1) eq '~') {
-+ return check_named_spec($page, $glob, %params);
-+ }
-+
- my $from=exists $params{location} ? $params{location} : '';
-
- # relative matching
-@@ -1756,11 +1860,16 @@ sub match_internal ($$;@) { #{{{
-
- sub match_link ($$;@) { #{{{
- my $page=shift;
-- my $link=lc(shift);
-+ my $fulllink=shift;
-+ my $link=lc($fulllink);
- my %params=@_;
-
-- my $from=exists $params{location} ? $params{location} : '';
-+ if (substr($fulllink, 0, 1) eq '~') {
-+ return check_named_spec_existential($page, $fulllink, \&match_link, %params);
-+ }
-
-+ my $from=exists $params{location} ? $params{location} : '';
-+
- # relative matching
- if ($link =~ m!^\.! && defined $from) {
- $from=~s#/?[^/]+$##;
-@@ -1785,12 +1894,25 @@ sub match_link ($$;@) { #{{{
- } #}}}
-
- sub match_backlink ($$;@) { #{{{
-- return match_link($_[1], $_[0], @_);
-+ my $page=shift;
-+ my $backlink=shift;
-+ my %params=@_;
-+
-+ if (substr($backlink, 0, 1) eq '~') {
-+ return check_named_spec_existential($page, $backlink, \&match_backlink, %params);
-+ }
-+
-+ return match_link($backlink, $page, %params);
- } #}}}
-
- sub match_created_before ($$;@) { #{{{
- my $page=shift;
- my $testpage=shift;
-+ my %params=@_;
-+
-+ if (substr($testpage, 0, 1) eq '~') {
-+ return check_named_spec_existential($page, $testpage, \&match_created_before, %params);
-+ }
-
- if (exists $IkiWiki::pagectime{$testpage}) {
- if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) {
-@@ -1808,6 +1930,11 @@ sub match_created_before ($$;@) { #{{{
- sub match_created_after ($$;@) { #{{{
- my $page=shift;
- my $testpage=shift;
-+ my %params=@_;
-+
-+ if (substr($testpage, 0, 1) eq '~') {
-+ return check_named_spec_existential($page, $testpage, \&match_created_after, %params);
-+ }
-
- if (exists $IkiWiki::pagectime{$testpage}) {
- if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) {
+ diff --git a/IkiWiki.pm b/IkiWiki.pm
+ index 061a1c6..1e78a63 100644
+ --- a/IkiWiki.pm
+ +++ b/IkiWiki.pm
+ @@ -1774,8 +1774,12 @@ sub pagespec_merge ($$) {
+ return "($a) or ($b)";
+ }
+
+ -sub pagespec_translate ($) {
+ +# is perl really so dumb it requires a forward declaration for recursive calls?
+ +sub pagespec_translate ($$);
+ +
+ +sub pagespec_translate ($$) {
+ my $spec=shift;
+ + my $specFuncsRef=shift;
+
+ # Convert spec to perl code.
+ my $code="";
+ @@ -1789,7 +1793,9 @@ sub pagespec_translate ($) {
+ |
+ \) # )
+ |
+ - \w+\([^\)]*\) # command(params)
+ + define\(\s*~\w+\s*,((\([^()]*\)) | ([^()]+))+\) # define(~specName, spec) - spec can contain parens 1 deep
+ + |
+ + \w+\([^()]*\) # command(params) - params cannot contain parens
+ |
+ [^\s()]+ # any other text
+ )
+ @@ -1805,10 +1811,19 @@ sub pagespec_translate ($) {
+ elsif ($word eq "(" || $word eq ")" || $word eq "!") {
+ $code.=' '.$word;
+ }
+ - elsif ($word =~ /^(\w+)\((.*)\)$/) {
+ + elsif ($word =~ /^define\(\s*(~\w+)\s*,(.*)\)$/s) {
+ + my $name = $1;
+ + my $subSpec = $2;
+ + my $newSpecFunc = pagespec_translate($subSpec, $specFuncsRef);
+ + return if $@ || ! defined $newSpecFunc;
+ + $specFuncsRef->{$name} = $newSpecFunc;
+ + push @data, qq{Created named pagespec "$name"};
+ + $code.="IkiWiki::SuccessReason->new(\$data[$#data])";
+ + }
+ + elsif ($word =~ /^(\w+)\((.*)\)$/s) {
+ if (exists $IkiWiki::PageSpec::{"match_$1"}) {
+ push @data, $2;
+ - $code.="IkiWiki::PageSpec::match_$1(\$page, \$data[$#data], \@_)";
+ + $code.="IkiWiki::PageSpec::match_$1(\$page, \$data[$#data], \@_, specFuncs => \$specFuncsRef)";
+ }
+ else {
+ push @data, qq{unknown function in pagespec "$word"};
+ @@ -1817,7 +1832,7 @@ sub pagespec_translate ($) {
+ }
+ else {
+ push @data, $word;
+ - $code.=" IkiWiki::PageSpec::match_glob(\$page, \$data[$#data], \@_)";
+ + $code.=" IkiWiki::PageSpec::match_glob(\$page, \$data[$#data], \@_, specFuncs => \$specFuncsRef)";
+ }
+ }
+
+ @@ -1826,7 +1841,7 @@ sub pagespec_translate ($) {
+ }
+
+ no warnings;
+ - return eval 'sub { my $page=shift; '.$code.' }';
+ + return eval 'memoize (sub { my $page=shift; '.$code.' })';
+ }
+
+ sub pagespec_match ($$;@) {
+ @@ -1839,7 +1854,7 @@ sub pagespec_match ($$;@) {
+ unshift @params, 'location';
+ }
+
+ - my $sub=pagespec_translate($spec);
+ + my $sub=pagespec_translate($spec, +{});
+ return IkiWiki::ErrorReason->new("syntax error in pagespec \"$spec\"")
+ if $@ || ! defined $sub;
+ return $sub->($page, @params);
+ @@ -1850,7 +1865,7 @@ sub pagespec_match_list ($$;@) {
+ my $spec=shift;
+ my @params=@_;
+
+ - my $sub=pagespec_translate($spec);
+ + my $sub=pagespec_translate($spec, +{});
+ error "syntax error in pagespec \"$spec\""
+ if $@ || ! defined $sub;
+
+ @@ -1872,7 +1887,7 @@ sub pagespec_match_list ($$;@) {
+ sub pagespec_valid ($) {
+ my $spec=shift;
+
+ - my $sub=pagespec_translate($spec);
+ + my $sub=pagespec_translate($spec, +{});
+ return ! $@;
+ }
+
+ @@ -1919,6 +1934,68 @@ sub new {
+
+ package IkiWiki::PageSpec;
+
+ +sub check_named_spec($$;@) {
+ + my $page=shift;
+ + my $specName=shift;
+ + my %params=@_;
+ +
+ + return IkiWiki::ErrorReason->new("Unable to find specFuncs in params to check_named_spec()!")
+ + unless exists $params{specFuncs};
+ +
+ + my $specFuncsRef=$params{specFuncs};
+ +
+ + return IkiWiki::ErrorReason->new("Named page spec '$specName' is not valid")
+ + unless (substr($specName, 0, 1) eq '~');
+ +
+ + if (exists $specFuncsRef->{$specName}) {
+ + # remove the named spec from the spec refs
+ + # when we recurse to avoid infinite recursion
+ + my $sub = $specFuncsRef->{$specName};
+ + delete $specFuncsRef->{$specName};
+ + my $result = $sub->($page, %params);
+ + $specFuncsRef->{$specName} = $sub;
+ + return $result;
+ + } else {
+ + return IkiWiki::ErrorReason->new("Page spec '$specName' does not exist");
+ + }
+ +}
+ +
+ +sub check_named_spec_existential($$$;@) {
+ + my $page=shift;
+ + my $specName=shift;
+ + my $funcref=shift;
+ + my %params=@_;
+ +
+ + return IkiWiki::ErrorReason->new("Unable to find specFuncs in params to check_named_spec_existential()!")
+ + unless exists $params{specFuncs};
+ + my $specFuncsRef=$params{specFuncs};
+ +
+ + return IkiWiki::ErrorReason->new("Named page spec '$specName' is not valid")
+ + unless (substr($specName, 0, 1) eq '~');
+ +
+ + if (exists $specFuncsRef->{$specName}) {
+ + # remove the named spec from the spec refs
+ + # when we recurse to avoid infinite recursion
+ + my $sub = $specFuncsRef->{$specName};
+ + delete $specFuncsRef->{$specName};
+ +
+ + foreach my $nextpage (keys %IkiWiki::pagesources) {
+ + if ($sub->($nextpage, %params)) {
+ + my $tempResult = $funcref->($page, $nextpage, %params);
+ + if ($tempResult) {
+ + $specFuncsRef->{$specName} = $sub;
+ + return IkiWiki::SuccessReason->new("Existential check of '$specName' matches because $tempResult");
+ + }
+ + }
+ + }
+ +
+ + $specFuncsRef->{$specName} = $sub;
+ + return IkiWiki::FailReason->new("No page in spec '$specName' was successfully matched");
+ + } else {
+ + return IkiWiki::ErrorReason->new("Named page spec '$specName' does not exist");
+ + }
+ +}
+ +
+ sub derel ($$) {
+ my $path=shift;
+ my $from=shift;
+ @@ -1937,6 +2014,10 @@ sub match_glob ($$;@) {
+ my $glob=shift;
+ my %params=@_;
+
+ + if (substr($glob, 0, 1) eq '~') {
+ + return check_named_spec($page, $glob, %params);
+ + }
+ +
+ $glob=derel($glob, $params{location});
+
+ my $regexp=IkiWiki::glob2re($glob);
+ @@ -1959,8 +2040,9 @@ sub match_internal ($$;@) {
+
+ sub match_link ($$;@) {
+ my $page=shift;
+ - my $link=lc(shift);
+ + my $fullLink=shift;
+ my %params=@_;
+ + my $link=lc($fullLink);
+
+ $link=derel($link, $params{location});
+ my $from=exists $params{location} ? $params{location} : '';
+ @@ -1975,25 +2057,37 @@ sub match_link ($$;@) {
+ }
+ else {
+ return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
+ - if match_glob($p, $link, %params);
+ + if match_glob($p, $fullLink, %params);
+ $p=~s/^\///;
+ $link=~s/^\///;
+ return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
+ - if match_glob($p, $link, %params);
+ + if match_glob($p, $fullLink, %params);
+ }
+ }
+ return IkiWiki::FailReason->new("$page does not link to $link");
+ }
+
+ sub match_backlink ($$;@) {
+ - return match_link($_[1], $_[0], @_);
+ + my $page=shift;
+ + my $backlink=shift;
+ + my @params=@_;
+ +
+ + if (substr($backlink, 0, 1) eq '~') {
+ + return check_named_spec_existential($page, $backlink, \&match_backlink, @params);
+ + }
+ +
+ + return match_link($backlink, $page, @params);
+ }
+
+ sub match_created_before ($$;@) {
+ my $page=shift;
+ my $testpage=shift;
+ my %params=@_;
+ -
+ +
+ + if (substr($testpage, 0, 1) eq '~') {
+ + return check_named_spec_existential($page, $testpage, \&match_created_before, %params);
+ + }
+ +
+ $testpage=derel($testpage, $params{location});
+
+ if (exists $IkiWiki::pagectime{$testpage}) {
+ @@ -2014,6 +2108,10 @@ sub match_created_after ($$;@) {
+ my $testpage=shift;
+ my %params=@_;
+
+ + if (substr($testpage, 0, 1) eq '~') {
+ + return check_named_spec_existential($page, $testpage, \&match_created_after, %params);
+ + }
+ +
+ $testpage=derel($testpage, $params{location});
+
+ if (exists $IkiWiki::pagectime{$testpage}) {