Add compile script for Windows

Author: Neil Fraser

compile.bat

@@ -0,0 +1,28 @@
+@REM Script for generating the compiled acorn_interpreter.js file.
+@REM For Windows.
+
+@REM  Prerequisites:
+@REM  1. Ensure Java is installed.  Open a command prompt and type 'java'.
+@REM  2. Ensure Python is installed.  Open a command prompt and type 'python'.
+@REM  3. Use a web browser to download the compiler and place it in this directory.
+@REM     https://unpkg.com/google-closure-compiler-java/compiler.jar
+
+@REM  Open a command prompt in this directory and run this file (compile.bat).
+
+@REM Make a copy of the interpreter so that polyfill sources can be complied.
+copy interpreter.js interpreter.tmp.js
+
+@REM This step is optional, but reduces the output by 5 KB.
+python polyfill_compile.py interpreter.tmp.js
+
+@ECHO Compiling Acorn + JS-Interpreter...
+java -jar compiler.jar ^
+     --compilation_level ADVANCED_OPTIMIZATIONS ^
+     --language_in=ECMASCRIPT5 ^
+     --language_out=ECMASCRIPT5 ^
+     --warning_level VERBOSE ^
+     --js='acorn.js' --js='interpreter.tmp.js' ^
+     --js_output_file acorn_interpreter.js
+
+del interpreter.tmp.js
+@ECHO Done

compile.sh

@@ -1,4 +1,5 @@
 # Script for generating the compiled acorn_interpreter.js file.
+# For Linux, BSD, MacOS, etc.
 
 # Download Closure Compiler if not already present.
 if test -f "compiler.jar"; then

polyfill_compile.py

@@ -18,7 +18,7 @@
 """ Process interpreter.tmp.js and compile the annotated polyfills.
 """
 
-_author__ = "[email protected] (Neil Fraser)"
+__author__ = "[email protected] (Neil Fraser)"
 
 import json
 import os