Pre-compile filter rules instead of re-lowercasing per article per emission

ArticleListScreen calls evaluate() once per visible article against the
same rule set, re-run on essentially any read-state change to any
article in the list. With a couple hundred articles and a handful of
rules, calling pattern.lowercase() inside the old per-article evaluate()
was thousands of redundant String allocations of the same small set
of strings.

0 files changed, 0 insertions, 0 deletions