| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with this |
| # work for additional information regarding copyright ownership. The ASF |
| # licenses this file to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| # License for the specific language governing permissions and limitations under |
| # the License. |
| |
| module Buildr |
| # Provides ANTLR grammar generation tasks. Require explicitly using <code>require "buildr/antlr"</code>. |
| module ANTLR |
| REQUIRES = [ "org.antlr:antlr:jar:3.0", "antlr:antlr:jar:2.7.7", "org.antlr:stringtemplate:jar:3.0" ] |
| |
| Java.classpath << REQUIRES |
| |
| class << self |
| 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 |
| end |
| |
| 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 |
| |
| end |
| |
| class Project |
| include ANTLR |
| end |
| end |