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Invoking a regular expression engine is overkill for cases when the search pattern only involves static patterns.

Usage

fixed_regex_linter()

Details

NB: for stringr functions, that means wrapping the pattern in stringr::fixed().

NB: This linter is likely not able to distinguish every possible case when a fixed regular expression is preferable, rather it seeks to identify likely cases. It should never report false positives, however; please report false positives as an error.

See also

linters for a complete list of linters available in lintr.