This is potentially expensive, but is necessary so that meta and tag
directives, and other links on templates affect the page using the template
reliably.
It no longer makes sense to keep these functions in editpage, because
serveral plugins now exist that use them, and users may want to disable
editpage, while leaving those plugins enabled.
Most notably, comments uses both functions, and it's entirely appropriate
to disable editpage but still want to have comments enabled.
Less likely, attachments, rename, and remove all use check_canedit -- but
it would be unusual indeed to want to use these w/o editpage.
Falls back to looking for shortcuts.mdwn for backwards compatabiity; there
probably exist wikis that have changed the pageext but still use
shortcuts.mdwn.
See [[bugs/Aggregated_Atom_feeds_are_double-encoded]]. By default,
XML::Atom outputs strings of UTF-8 bytes with the Perl UTF8 flag stripped
off, which IkiWiki assumes to be Latin-1 and re-encodes as UTF-8 on
output. XML::Feed does not currently (0.41-1) set the magic variable to
change this behaviour (I've filed a bug on CPAN), but IkiWiki can
usefully set the same variable as a workaround.
This may already work with other web servers that have copied apache's
interface, and it should be easy to add support to it for web servers that
use some other interface. So, make the name more general.
This redirects to the given page (or if none is given, the page parameter
given to the CGI), or displays an error with a create link if the page
doesn't exist.
It was calling format hooks for each comment on the page.
When relativedate is enabled, that made it insert <script> tags
for each comment. And the browser loaded the same script over and over,
which was slow on its own. But that was nothing compared to running
the onload even over and over.. especially since the hook system
added a new call to the hook each time it loaded.
For a page with 10 comments, that caused the relativedate DOM parsing
code to run 1000 times, I think. Anyway, it was sloow. Now it runs once.
if suitable alternate text is unknown, then it should not be given.
empty alt text is suitable mainly for purely decorative images.
(cherry picked from commit 3cd7f67f0cf894f4fd5ba16f68e82e4f7bdbfdc5)
Some aggregators, like Planet, sort by mtime rather than ctime. This
means that posts with modified content come to the top (which seems odd
to me, but is presumably what the aggregator's author or operator
wants), but it also means that posts with insignificant edits (like
adding tags) come to the top too. Atom defines <updated> to be the date
of the last *significant* change, so it's fine that ikiwiki defaults to
using the mtime, but it would be good to have a way for the author to
say "that edit was insignificant, don't use that mtime".