haml--haml/lib/sass/repl.rb

45 lines
1.0 KiB
Ruby

require 'readline'
module Sass
module Repl
class << self
def run
environment = Environment.new
environment.set_var('important', Script::String.new('!important'))
@line = 0
loop do
@line += 1
unless text = Readline.readline('>> ')
puts
return
end
Readline::HISTORY << text
parse_input(environment, text)
end
end
private
def parse_input(environment, text)
case text
when Script::MATCH
name = $1
guarded = $2 == '||='
val = Script::Parser.parse($3, @line, text.size - $3.size)
unless guarded && environment.var(name)
environment.set_var(name, val.perform(environment))
end
p environment.var(name)
else
p Script::Parser.parse(text, @line, 0).perform(environment)
end
rescue Sass::SyntaxError => e
puts "SyntaxError: #{e.message}"
end
end
end
end