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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for unnecessary additional spaces inside array percent literals
# (i.e. %i/%w).
#
# @example
#
# # bad
# %w(foo bar baz)
# # good
# %i(foo bar baz)
class SpaceInsideArrayPercentLiteral < Cop
include MatchRange
include PercentLiteral
MSG = 'Use only a single space inside array percent literal.'.freeze
MULTIPLE_SPACES_BETWEEN_ITEMS_REGEX =
/(?:[\S&&[^\\]](?:\\ )*)( {2,})(?=\S)/.freeze
def on_array(node)
process(node, '%i', '%I', '%w', '%W')
end
def on_percent_literal(node)
each_unnecessary_space_match(node) do |range|
add_offense(node, location: range)
end
end
def autocorrect(node)
lambda do |corrector|
each_unnecessary_space_match(node) do |range|
corrector.replace(range, ' ')
end
end
end
private
def each_unnecessary_space_match(node, &blk)
each_match_range(
contents_range(node),
MULTIPLE_SPACES_BETWEEN_ITEMS_REGEX,
&blk
)
end
end
end
end
end
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