class SCSSLint::Linter::ZeroUnit
Checks for unnecessary units on zero values.
Constants
- LENGTH_UNITS
- MESSAGE_FORMAT
- ZERO_UNIT_REGEX
Public Instance Methods
visit_script_funcall(node) { || ... }
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# File lib/scss_lint/linter/zero_unit.rb, line 25 def visit_script_funcall(node) # Don't report errors for values within `calc` expressions, since they # require units in order to work yield unless node.name == 'calc' end
visit_script_number(node)
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# File lib/scss_lint/linter/zero_unit.rb, line 18 def visit_script_number(node) length = source_from_range(node.source_range)[ZERO_UNIT_REGEX, 1] return unless zero_with_length_units?(length) add_lint(node, MESSAGE_FORMAT % length) end
visit_script_string(node)
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# File lib/scss_lint/linter/zero_unit.rb, line 8 def visit_script_string(node) return unless node.type == :identifier return if node.value.start_with?('calc(') node.value.scan(ZERO_UNIT_REGEX) do |match| next unless zero_with_length_units?(match.first) add_lint(node, MESSAGE_FORMAT % match.first) end end
Private Instance Methods
zero_with_length_units?(string)
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# File lib/scss_lint/linter/zero_unit.rb, line 44 def zero_with_length_units?(string) string =~ /^0([a-z]+)/ && LENGTH_UNITS.include?(Regexp.last_match(1)) end