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Contents
module SCSSLint
# Checks that selector sequences are split over multiple lines by comma.
class Linter::SingleLinePerSelector < Linter
include LinterRegistry
def visit_rule(node)
add_lint(node, MESSAGE) if invalid_comma_placement?(node)
yield # Continue linting children
end
private
MESSAGE = 'Each selector in a comma sequence should be on its own line'
# A comma is invalid if it starts the line or is not the end of the line
def invalid_comma_placement?(node)
normalize_spacing(condense_to_string(node.rule)) =~ /\n,|,[^\n]/
end
# Since RuleNode.rule returns an array containing both String and
# Sass::Script::Nodes, we need to condense it into a single string that we
# can run a regex against.
def condense_to_string(sequence_list)
sequence_list.select { |item| item.is_a?(String) }
.inject('') { |combined, item| combined + item }
end
# Removes extra spacing between lines in a comma-separated sequence due to
# comments being removed in the parse phase. This makes it easy to check if
# a comma is where belongs.
def normalize_spacing(string_sequence)
string_sequence.gsub(/,[^\S\n]*\n\s*/, ",\n")
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems