class RuboCop::Cop::Style::RedundantRegexpCharacterClass

Checks for unnecessary single-element ‘Regexp` character classes.

@example

# bad
r = /[x]/

# good
r = /x/

# bad
r = /[\s]/

# good
r = /\s/

# bad
r = %r{/[b]}

# good
r = %r{/b}

# good
r = /[ab]/