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janboddez / share-on-mastodon

Easily share WordPress posts on Mastodon.
https://jan.boddez.net/wordpress/share-on-mastodon
GNU General Public License v3.0
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Smarter default excerpt length #101

Closed janboddez closed 8 months ago

janboddez commented 8 months ago

We could probably "estimate" the status length without the excerpt (by filling in only the title and tags first, and assuming 23 characters for the permalink, if any) and then set something more reasonable then a mere 125 characters for the excerpt length.

janboddez commented 8 months ago

That seems to work. We grab the original excerpt, clean it up a bit, then shorten it. The maximum length is 500 450, because, well, "margin of safety," minus the title and tags and all. A permalink, if there even is one, should take up no more than 23 characters (because Mastodon treats all links like this), so 450 is a fairly safe max length.

If the cleanup up and shortened "excerpt" are the same ... we didn't actually need to do anything and return the original. (We could also avoid this by comparing lengths ... Right?)

If they are different, we did shorten, so we add a trailing ellipsis and return the shortened one.