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pavel-zdenek/find_force_unwraps_swift.md

Last active January 25, 2017 10:11
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Regex to search for force unwraps in Swift code
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find_force_unwraps_swift.md

^(?!(.*?\s+)?(#|\/\/)).*?\w+\!([ .\)]|$)

Breakdown:

^(?!.*?\s+(#|\/\/)\s+) Filter out comments in shellscript and C++ single-line style. C-style multiline would be nice to have but extremely complicated and this already covers 80%

?! Assert nonmatch of (.*?\s+)? Optionally a sequence of any characters followed by at least one whitespace (#|\/\/) followed by hash or double slash

Non greedy forward to the token of interest

\w+\!

Variable name or a keyword, followed by a bang.

([ .)]|$)

Tokens allowed to follow the bang (including EOL). Supposed to filter out bangs as logical negation operators.

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