Commit Graph

8 Commits (a618df7998fa3be55446c063dd1315cdf16d6fab)

Author SHA1 Message Date
David Yip 656d54e945 Maintain case-insensitivity when merging multiple matchers (#213)
When given two regexps, Regexp.union preserves the options set (or not
set) on each regex; this meant that none of the multiline (m),
case-insensitivity (i), or extended syntax (x) options were set.  Our
regexps are written expecting the m, i, and x options were set on all of
them, so we need to make sure that we preserve that behavior.
2017-11-13 11:06:02 -06:00
David Yip e40fe4092d Remove nil check in Glitch::KeywordMute#=~.
@regex can no longer be nil, so we don't need to check it.
2017-10-24 19:03:59 -05:00
David Yip f5a3283976 Switch to Regexp.union for building the mute expression.
Also make the keyword-building methods private: they always probably
should have been private, but now I have encoded enough fun and games
into them that it now seems wrong for them to *not* be private.
2017-10-24 18:31:34 -05:00
David Yip 8410d33b49 Only cache the regex text, not the regex itself.
It is possible to cache a Regexp object, but I'm not sure what happens
if e.g. that object remains in cache across two different Ruby versions.
Caching a string seems to raise fewer questions.
2017-10-23 19:31:59 -05:00
David Yip af8f06413e KeywordMute matcher: more closely mimic Regexp#=~ behavior.
Regexp#=~ returns nil if it does not match.  An empty mute set does not
match any status, so KeywordMute::Matcher#=~ ought to return nil also.
2017-10-22 01:12:21 -05:00
David Yip 4b68e82a19 Don't add \b to whole-word keywords that don't start with word characters.
Ditto for ending with \b.

Consider muting the phrase "(hot take)".  I stipulate it is reasonable
to enter this with the default "match whole word" behavior.  Under the
old behavior, this would be encoded as

    \b\(hot\ take\)\b

However, if \b is before the first character in the string and the first
character in the string is not a word character, then the match will
fail.  Ditto for after.  In our example, "(" is not a word character, so
this will not match statuses containing "(hot take)", and that's a very
surprising behavior.

To address this, we only add leading and trailing \b to keywords that
start or end with word characters.
2017-10-22 00:38:54 -05:00
David Yip ad86c86fa8 Apply keyword mutes to reblogs. 2017-10-21 15:44:47 -05:00
David Yip 670e6a33f8 Move KeywordMute into Glitch namespace.
There are two motivations for this:

1. It looks like we're going to add other features that require
   server-side storage (e.g. user notes).

2. Namespacing glitchsoc modifications is a good idea anyway: even if we
   do not end up doing (1), if upstream introduces a keyword-mute feature
   that also uses a "KeywordMute" model, we can avoid some merge
   conflicts this way and work on the more interesting task of
   choosing which implementation to use.
2017-10-21 14:54:36 -05:00