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Versions: 4
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Contents
require "beautiful-css/rule_parser"
require "sass"
module BeautifulCss
class Engine
def initialize input
@input = input
end
def scss_to_css scss
Sass::Engine.new(scss,{:syntax => :scss}).render
end
def to_s
render
end
def render
return nil if @input.nil?
save_imports
rules = build_rules
cleaned = remove_unset rules
groups = build_groups(cleaned)
return format( groups )
end
private
def save_imports
@imports = @input.scan(/@import[^;]+;/i)
end
def build_rules
text = scss_to_css @input
text = text.gsub(/@import[^;]+;/i, '') #remove imports
text = text.gsub( /[\n\r\t]/m, " " )
text = text.gsub( / +/m, " " )
text = text.gsub( /\/\*[^*]*\*\//m, " " ) #remove comments
rules = text.split('}')
rules = rules.map{|r| RuleParser.new(r).to_rules }.flatten
end
def remove_unset rules
hash = {}
rules.each do |r|
hash[r.prop] = {} if !( hash.has_key? r.prop)
hash[r.prop][r.selector] = r.value
end
hash
end
def build_groups rules
groups = {}
rules.keys.each do |prop|
rules[prop].keys.each do |selector|
val = rules[prop][selector]
prop_val = "{ #{prop}:#{val} }"
groups[prop_val] = [] if !( groups.has_key? prop_val)
groups[prop_val] << selector
end
end
groups
end
def format groups
output = @imports.join('\n') + "\n"
groups.keys.sort.each do |key|
output += "\n"
output += groups[key].uniq.join(",\n") + "\n"
output += key + "\n"
end
output.gsub( /: +/, ':' ).strip
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems