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| author | Kaz Kylheku <kaz@kylheku.com> | 2016-09-15 21:45:23 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2016-09-15 21:45:23 -0700 |
| commit | 3991f471ecd6095cc321c45dff90955d7108970a (patch) | |
| tree | 68fa3a434225d5307ab1be014795d5399d337ee7 /eval.c | |
| parent | 2fea7e5998e4e757d62146e67491ee09f6d1738b (diff) | |
| download | txr-3991f471ecd6095cc321c45dff90955d7108970a.tar.gz txr-3991f471ecd6095cc321c45dff90955d7108970a.tar.bz2 txr-3991f471ecd6095cc321c45dff90955d7108970a.zip | |
regex: add case to complement optimization.
* regex.c (reg_optimize): Based on the reasoning in the
previous commit, we can also statically optimize a
complement whose argument is the t regex: match nothing.
We convert that to match everything: the .* regex.
Now (regex-compile "~[]") -> #/.*/.
Diffstat (limited to 'eval.c')
0 files changed, 0 insertions, 0 deletions