Commit Graph

2 Commits

Author SHA1 Message Date
Johannes Schindelin
d00f799d2e Regex: special-case a(a*?)(a?)(a??)(a+)(a*)a
Among other challenges, this regular expression is designed to demonstrate
that thread prioritization is finicky: Given the string 'aaaaaa' to match,
the first four threads will try to grab the second 'a', the third thread
(the one that matched the '(a??)' group) having scheduled the same
instruction pointer to the '(a+)' group that the second -- higher-priority
-- thread will try to advance to only after processing the '(a??)' group's
SPLIT. The second thread must override the third thread in that case,
essentially stopping the latter.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2013-12-03 12:28:10 -06:00
Johannes Schindelin
b03283033e Add a unit test for the regular expression engine
We still do not parse the regular expression patterns, but we can at
least test that the hardcoded 'a(bb)+a' works as expected.

This class will be extended as we support more and more features.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2013-12-03 12:28:10 -06:00