Lint-RedundantRegexpQuantifiers.md

Pattern: Redundant Regexp quantifier

Issue: -

Description

Checks for redundant quantifiers inside Regexp literals.

It is always allowed when interpolation is used in a regexp literal, because it's unknown what kind of string will be expanded as a result:

/(?:a*#{interpolation})?/x

Examples

# bad
/(?:x+)+/

# good
/(?:x)+/

# good
/(?:x+)/

# bad
/(?:x+)?/

# good
/(?:x)*/

# good
/(?:x*)/

Further Reading

• RuboCop - Lint/RedundantRegexpQuantifiers