module Buildr::ANTLR

Provides ANTLR grammar generation tasks. Require explicitly using require "buildr/antlr".

Constants

REQUIRES

Public Class Methods

antlr(*args) click to toggle source
# File addon/buildr/antlr.rb, line 24
def antlr(*args)
  options = Hash === args.last ? args.pop : {}
  rake_check_options options, :output, :token

  args = args.flatten.map(&:to_s).collect { |f| File.directory?(f) ? FileList[f + "/**/*.g"] : f }.flatten
  args = ["-o",  options[:output]] + args if options[:output]
  if options[:token]
    # antlr expects the token directory to exist when it starts
    mkdir_p options[:token]
    args = ["-lib",  options[:token]] + args
  end
  Java.load
  #Java.org.antlr.Tool.new_with_sig("[Ljava.lang.String;", args).process
  Java.org.antlr.Tool.new(args.to_java(Java.java.lang.String)).process
end

Public Instance Methods

antlr(*args) click to toggle source
# File addon/buildr/antlr.rb, line 41
def antlr(*args)
  if Hash === args.last
    options = args.pop
    in_package = options[:in_package].split(".")
    token = options[:token].split(".") if options[:token]
  else
    in_package = []; token = nil
  end
  file(path_to(:target, :generated, :antlr)=>args.flatten) do |task|
    args = {:output=>File.join(task.name, in_package)}
    args.merge!({:token=>File.join(task.name, token)}) if token
    ANTLR.antlr task.prerequisites, args
  end
end