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Contents
module SCSSLint
# Checks for unnecessary trailing zeros in numeric values with decimal points.
class Linter::TrailingZero < Linter
include LinterRegistry
def visit_script_string(node)
return unless node.type == :identifier
non_string_values = remove_quoted_strings(node.value).split
non_string_values.each do |value|
next unless number = value[FRACTIONAL_DIGIT_REGEX, 1]
check_for_trailing_zeros(node, number)
end
end
def visit_script_number(node)
return unless number =
source_from_range(node.source_range)[FRACTIONAL_DIGIT_REGEX, 1]
check_for_trailing_zeros(node, number)
end
private
FRACTIONAL_DIGIT_REGEX = /^-?(\d*\.\d+)/
def check_for_trailing_zeros(node, original_number)
return unless match = /^(\d*\.(?:[0-9]*[1-9]|[1-9])*)0+$/.match(original_number)
fixed_number = match[1]
# Handle special case of 0 being the only trailing digit
fixed_number = fixed_number[0..-2] if fixed_number.end_with?('.')
fixed_number = 0 if fixed_number.empty? # Handle ".0" -> "0"
add_lint(node,
"`#{original_number}` should be written without a trailing " \
"zero as `#{fixed_number}`")
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems