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Contents
# encoding: utf-8
module RuboCop
module Cop
module Style
# This cop checks for usage of the %Q() syntax when %q() would do.
class PercentQLiterals < Cop
include PercentLiteral
include ConfigurableEnforcedStyle
def on_str(node)
process(node, '%Q', '%q')
end
private
def on_percent_literal(node)
if style == :lower_case_q
if type(node) == '%Q'
check(node,
'Do not use `%Q` unless interpolation is needed. ' \
'Use `%q`.')
end
elsif type(node) == '%q'
check(node, 'Use `%Q` instead of `%q`.')
end
end
def check(node, msg)
src = node.loc.expression.source
# Report offense only if changing case doesn't change semantics,
# i.e., if the string would become dynamic or has special characters.
return if node.children !=
ProcessedSource.new(corrected(src)).ast.children
add_offense(node, :begin, msg)
end
def autocorrect(node)
src = node.loc.expression.source
@corrections << lambda do |corrector|
corrector.replace(node.loc.expression, corrected(src))
end
end
def corrected(src)
src.sub(src[1], src[1].swapcase)
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems