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Contents
# frozen_string_literal: true
require 'sass'
require 'English'
module ZendeskAppsTools
module Theming
class ZassFormatter
COMMAND = /(?<command>lighten|darken)/i
COLOR = /(?<color>#\h{6}|#\h{3})/
PERCENTAGE = /(?<percentage>\d{1,3})%/
COLOR_COMMAND_REGEXP = /#{COMMAND}\s*\(\s*#{COLOR}\s*,\s*#{PERCENTAGE}\s*\)/
def self.format(raw, variables)
joined_keys = "(#{variables.keys.join('|')})"
keys_regex = /(\$#{joined_keys}\b)|(#\{\$#{joined_keys}\})/
substitution_hash = variables.each_with_object({}) do |(k, v), hash|
hash["$#{k}"] = v.to_s
hash["\#{$#{k}}"] = v.to_s
end
body = raw.to_s.dup
body.gsub!(keys_regex, substitution_hash)
# Color manipulation
body.gsub!(COLOR_COMMAND_REGEXP) do |whole_match|
if $LAST_MATCH_INFO[:command] == 'lighten'
color_adjust($LAST_MATCH_INFO[:color], $LAST_MATCH_INFO[:percentage].to_i, :+) || whole_match
else
color_adjust($LAST_MATCH_INFO[:color], $LAST_MATCH_INFO[:percentage].to_i, :-) || whole_match
end
end
body
end
def self.color_adjust(rgb, percentage, op)
color = Sass::Script::Value::Color.from_hex(rgb)
# Copied from:
# https://github.com/sass/sass/blob/3.4.21/lib/sass/script/functions.rb#L2671
new_color = color.with(lightness: color.lightness.public_send(op, percentage))
# We set the Sass Output to compressed
new_color.options = { style: :compressed }
new_color.to_sass
rescue ArgumentError
nil
end
end
end
end
Version data entries
66 entries across 66 versions & 1 rubygems