Fix like regex escaping #1085
Fix like regex escaping #1085
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| @@ -303,7 +303,7 @@ where | |||
| /// use arrow::compute::like_utf8; | |||
| /// | |||
| /// let strings = StringArray::from(vec!["Arrow", "Arrow", "Arrow", "Ar"]); | |||
| /// let patterns = StringArray::from(vec!["A%", "B%", "A.", "A."]); | |||
| /// let patterns = StringArray::from(vec!["A%", "B%", "A.", "A_"]); | |||
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Lol - even the doctest here was relying on a non-escaped .
Codecov Report
@@ Coverage Diff @@
## master #1085 +/- ##
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Coverage 82.28% 82.28%
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Files 168 168
Lines 49281 49289 +8
=======================================
+ Hits 40549 40559 +10
+ Misses 8732 8730 -2
Continue to review full report at Codecov.
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thanks for the PR! looks good! |
| let pat = right.value(i); | ||
| let re = if let Some(ref regex) = map.get(pat) { | ||
| let pat = escape(right.value(i)); | ||
| let re = if let Some(ref regex) = map.get(&pat) { | ||
| regex | ||
| } else { | ||
| let re_pattern = pat.replace("%", ".*").replace("_", "."); |
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Do we still need this pat.replace call?
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Yeah, to make a proper regex out of it (instead of literally matching on the percentage or underscore character).
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But we could minimize some borrow / cloning by moving the escape... So now it looks more similar to the other places.
| regex | ||
| } else { | ||
| let re_pattern = pat.replace("%", ".*").replace("_", "."); | ||
| let re_pattern = escape(pat).replace("%", ".*").replace("_", "."); |
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Less code and fewer bugs -- now that is the sign of a great fix ❤️
Nice work -- looks great to me @Dandandan .
We can file a follow on ticket, perhaps. If someone can whip up a reproducer that would be awesome 🤞 |
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Filed #1087 to track the possible escaping problems |
* Fix like regex escaping * Fix like regex escaping * Fix doctest * Simplify
Which issue does this PR close?
Closes #1069
Rationale for this change
Fixes
likenot to handle regex syntax like.*and.but escapes it.What changes are included in this PR?
Are there any user-facing changes?