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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks if usage of %() or %Q() matches configuration.
class BarePercentLiterals < Cop
include ConfigurableEnforcedStyle
MSG = 'Use `%%%s` instead of `%%%s`.'.freeze
def on_dstr(node)
check(node)
end
def on_str(node)
check(node)
end
private
def check(node)
return if node.loc.respond_to?(:heredoc_body)
return unless node.loc.respond_to?(:begin)
return unless node.loc.begin
source = node.loc.begin.source
if requires_percent_q?(source)
add_offense_for_wrong_style(node, 'Q', '')
elsif requires_bare_percent?(source)
add_offense_for_wrong_style(node, '', 'Q')
end
end
def requires_percent_q?(source)
style == :percent_q && source =~ /^%[^\w]/
end
def requires_bare_percent?(source)
style == :bare_percent && source =~ /^%Q/
end
def add_offense_for_wrong_style(node, good, bad)
add_offense(node, :begin, format(MSG, good, bad))
end
def autocorrect(node)
src = node.loc.begin.source
replacement = src.start_with?('%Q') ? '%' : '%Q'
lambda do |corrector|
corrector.replace(node.loc.begin, src.sub(/%Q?/, replacement))
end
end
end
end
end
end
Version data entries
18 entries across 18 versions & 2 rubygems