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Regex Cheat Sheet/Alternation

Match one branch or another.

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Section: Groups and Alternation

Alternation

regex
regex
error|warning|info
Explanation

Equivalent to logical OR across branches.

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Related commands

Same sheet · prioritizing Groups and Alternation
Nested groups
Combine multiple grouped pieces.
OpenIn sheetregexsame section
Capturing group
Capture a submatch for reuse or extraction.
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Non-capturing group
Group without creating a numbered capture.
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Optional group
Make an entire grouped piece optional.
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Branch reset group
Reset group numbers per alternation branch.
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Start of string
Match only at the beginning of the input.
OpenIn sheetregex