add append option to content helper

[devsnek]

just stopping with no append is silly. lez fix dis. I added an append option to the helper.
{{content characters="250" append="..."}}
{{content characters="250" append="★"}}
{{content characters="250" append="A LONG TIME AGO..."}}
{{content words="40" append="limiting with words? ohhhhkay...."}}
they all work. well.

it works with all the builds and tests that it says to run. i tested it with different ascii/hex/random things and it never failed.

[devsnek]

to be fair the commit labeled "this time it will work" only failed because of the linter.

[ErisDS]

Hi @GusCaplan, thanks for swinging by!

Can I please point you at a reply I wrote on a recent, similar, feature-adding PR here and also at the discussion on this issue which is all about the feature you've proposed and this very related issue

TLDR; it's not as simple as it seems but there are some improvements I'd love to see here.

[devsnek]

@ErisDS I have just added the append option to the excerpt helper, and I plan to add the HTML filter and other features that you mention in 5060 later today.

For the future, I think that one of these should be linked to the other because they do the same thing.

[devsnek]

travis build 9225 (commit b349156) failed because of apt-get, not my code. take a look

[devsnek]

i'm moving my content pull and my excerpt pull into seperate PRs so this is now closed.
content PR is here