text: /*
   * Copyright 2009 The Closure Compiler Authors.
   *
   * Licensed 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.
   */
  
  //
  // Contents
  //
  
  The Closure Compiler performs checking, instrumentation, and
  optimizations on JavaScript code. The purpose of this README is to
  explain how to build and run the Closure Compiler.
  
  The Closure Compiler requires Java 6 or higher.
  http://www.java.com/
  
  
  //
  // Building The Closure Compiler
  //
  
  There are three ways to get a Closure Compiler executable.
  
  1) Use one we built for you.
  
  Pre-built Closure binaries can be found at
  http://code.google.com/p/closure-compiler/downloads/list
  
  
  2) Check out the source and build it with Apache Ant.
  
  First, check out the full source tree of the Closure Compiler. There
  are instructions on how to do this at the project site.
  http://code.google.com/p/closure-compiler/source/checkout
  
  Apache Ant is a cross-platform build tool.
  http://ant.apache.org/
  
  At the root of the source tree, there is an Ant file named
  build.xml. To use it, navigate to the same directory and type the
  command
  
  ant jar
  
  This will produce a jar file called "build/compiler.jar".
  
  
  3) Check out the source and build it with Eclipse.
  
  Eclipse is a cross-platform IDE.
  http://www.eclipse.org/
  
  Under Eclipse's File menu, click "New > Project ..." and create a
  "Java Project."  You will see an options screen. Give the project a
  name, select "Create project from existing source," and choose the
  root of the checked-out source tree as the existing directory. Verify
  that you are using JRE version 6 or higher.
  
  Eclipse can use the build.xml file to discover rules. When you
  navigate to the build.xml file, you will see all the build rules in
  the "Outline" pane. Run the "jar" rule to build the compiler in
  build/compiler.jar.
  
  
  //
  // Running The Closure Compiler
  //
  
  Once you have the jar binary, running the Closure Compiler is straightforward.
  
  On the command line, type
  
  java -jar compiler.jar
  
  This starts the compiler in interactive mode. Type
  
  var x = 17 + 25;
  
  then hit "Enter", then hit "Ctrl-Z" (on Windows) or "Ctrl-D" (on Mac or Linux)
  and "Enter" again. The Compiler will respond:
  
  var x=42;
  
  The Closure Compiler has many options for reading input from a file,
  writing output to a file, checking your code, and running
  optimizations. To learn more, type
  
  java -jar compiler.jar --help
  
  You can read more detailed documentation about the many flags at
  http://code.google.com/closure/compiler/docs/gettingstarted_app.html
  
  
  //
  // Compiling Multiple Scripts
  //
  
  If you have multiple scripts, you should compile them all together with
  one compile command.
  
  java -jar compiler.jar --js=in1.js --js=in2.js ... --js_output_file=out.js
  
  The Closure Compiler will concatenate the files in the order they're
  passed at the command line.
  
  If you need to compile many, many scripts together, you may start to
  run into problems with managing dependencies between scripts. You
  should check out the Closure Library. It contains functions for
  enforcing dependencies between scripts, and a tool called calcdeps.py
  that knows how to give scripts to the Closure Compiler in the right
  order.
  
  http://code.google.com/p/closure-library/
  
  //
  // Licensing
  //
  
  Unless otherwise stated, all source files are licensed under
  the Apache License, Version 2.0.
  
  
  -----
  Code under:
  src/com/google/javascript/rhino
  test/com/google/javascript/rhino
  
  URL: http://www.mozilla.org/rhino
  Version:  1.5R3, with heavy modifications
  License:  Netscape Public License and MPL / GPL dual license
  
  Description: A partial copy of Mozilla Rhino. Mozilla Rhino is an
  implementation of JavaScript for the JVM.  The JavaScript parser and
  the parse tree data structures were extracted and modified
  significantly for use by Google's JavaScript compiler.
  
  Local Modifications: The packages have been renamespaced. All code not
  relevant to parsing has been removed. A JsDoc parser and static typing
  system have been added.
  
  
  -----
  Code in:
  lib/rhino
  
  Rhino
  URL: http://www.mozilla.org/rhino
  Version:  Trunk
  License:  Netscape Public License and MPL / GPL dual license
  
  Description: Mozilla Rhino is an implementation of JavaScript for the JVM.
  
  Local Modifications: Minor changes to parsing JSDoc that usually get pushed
  up-stream to Rhino trunk.
  
  
  -----
  Code in:
  lib/args4j.jar
  
  Args4j
  URL: https://args4j.dev.java.net/
  Version: 2.0.16
  License: MIT
  
  Description:
  args4j is a small Java class library that makes it easy to parse command line
  options/arguments in your CUI application.
  
  Local Modifications: None.
  
  
  -----
  Code in:
  lib/guava.jar
  
  Guava Libraries
  URL: http://code.google.com/p/guava-libraries/
  Version:  13.0.1
  License: Apache License 2.0
  
  Description: Google's core Java libraries.
  
  Local Modifications: None.
  
  
  -----
  Code in:
  lib/jsr305.jar
  
  Annotations for software defect detection
  URL: http://code.google.com/p/jsr-305/
  Version: svn revision 47
  License: BSD License
  
  Description: Annotations for software defect detection.
  
  Local Modifications: None.
  
  
  -----
  Code in:
  lib/jarjar.jar
  
  Jar Jar Links
  URL: http://jarjar.googlecode.com/
  Version: 1.1
  License: Apache License 2.0
  
  Description:
  A utility for repackaging Java libraries.
  
  Local Modifications: None.
  
  
  ----
  Code in:
  lib/junit.jar
  
  JUnit
  URL:  http://sourceforge.net/projects/junit/
  Version:  4.10
  License:  Common Public License 1.0
  
  Description: A framework for writing and running automated tests in Java.
  
  Local Modifications: None.
  
  
  ---
  Code in:
  lib/protobuf-java.jar
  
  Protocol Buffers
  URL: http://code.google.com/p/protobuf/
  Version: 2.4.1
  License: New BSD License
  
  Description: Supporting libraries for protocol buffers,
  an encoding of structured data.
  
  Local Modifications: None
  
  
  ---
  Code in:
  lib/ant.jar
  lib/ant-launcher.jar
  
  URL: http://ant.apache.org/bindownload.cgi
  Version: 1.8.1
  License: Apache License 2.0
  Description:
    Ant is a Java based build tool. In theory it is kind of like "make"
    without make's wrinkles and with the full portability of pure java code.
  
  Local Modifications: None
  
  
  ---
  Code in:
  lib/json.jar
  URL: http://json.org/java/index.html
  Version: JSON version 20090211
  License: MIT license
  Description:
  JSON is a set of java files for use in transmitting data in JSON format.
  
  Local Modifications: None
  
  ---
  Code in:
  tools/maven-ant-tasks-2.1.3.jar
  URL: http://maven.apache.org
  Version 2.1.3
  License: Apache License 2.0
  Description:
    Maven Ant tasks are used to manage dependencies and to install/deploy to
    maven repositories.
  
  Local Modifications: None
  