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Solution?

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spalax 2014-01-13 16:23:43 -04:00 committed by admin
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doc/forum/inject__95__preprocess__95__tag.mdwn
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@ -48,3 +48,28 @@ Here is the full code of (a very early version of) my plugin.
1
-- [[Louis|spalax]]
> Hello,
> I managed to replace the tag original `preprocess_tag` function, using a different approach than using `inject`:
>
> my $orig_preprocess_tag;
>
> sub import {
> IkiWiki::loadplugin("tag");
> $orig_preprocess_tag = \&{$IkiWiki::hooks{preprocess}{tag}{call}};
> hook(type => "preprocess", id => "tag", call => \&my_preprocess_tag);
> }
>
> And later on, I can call the original `preprocess_tag` function using:
>
> $orig_preprocess_tag->(...)
>
> The problem is that I am digging into `IkiWiki.pm` package to extract data from `IkiWiki::hooks`, which is not guaranteed to work in the future, contrary to `inject`.
>
> Two questions:
>
> - how ugly is my solution?
> - is it possible to use `inject` to replace the `IkiWiki::Plugin::tag::preprocess_tag` function?
>
> -- [[Louis|spalax]]