Free EcmaScript Interpreter.  A JavaScript interpreter written in Java.

1.1.6 - August 4 2003
    Avoid a useless backtrack in lexical parsing.
    Corrected a bug in scope chain and prototype, added test
        in validation suite (thanks to Michael Schneider).
    Corrected a bug in 'this' for called functions (thanks to
    Michael Schneider and a few others).
    Corrected a bug in getTimezoneOffset (thank to Wendell T. Hicken)
    Added substr from Wendell T. Hicken (not sure if in standard)
    Added command @module to load module, use @load to load files
    Normalized import statements (using Eclipse)
    Use latest version of ORO and GNU regexpt libraries, removed
        deprecated methods used for OROlib.
    Use latest version (3.1, open source, renamed the reader) of JavaCC
    Use IzPack installer (http://www.izforge.com/izpack/)
    Use ANT to control the code and site generation.
    Currently removed the FesiFTP example (lack of time to integrate).

1.1.5 - July 29,  2000
    Corrected bug when calling a function with less arguments than the number of real parameters. Now correctly returns 'undefined' for missing parameters (thanks to Rob Noble and Sergey Borisov).
    Use 'undefined' when attempting to use no value at all (for example using the returned value of an function which ends with an empty statement). Previously this created a null pointer exception.
    Hack (adding a new line) to work around a parsing limitation which generated an error when a single line program was terminated by a // comment.

1.1.4 - January 30,  2000
    Added the GnuRegExp (Thanks to Mike Dillon), allowing LGPL support of RegExp.
    Better documentation of Windows Installation.

1.1.3 - December 25,  1999
    LICENSED UNDER THE LGPL .Thanks to the Debian and FSF people who encouraged me to use a more standard license. NOTE: To avoid any licensing ambiguity, the ORO regular expression library is not included anymore, you must download it from http://www.savarese.org .
    Use javaCC 1.1.
    Corrected bug in getting path separator (for Linux).
    Pass call to functions to the prototype even if prototype is a native object.
    Add extensions of initialized objects (from Christophe Marton).
    new Date() correctly initialize to current time.
    Corrected bug in parseInt of large numbers.
    Corrected bug when RegExp matched but one group did not match.
    The limitation on calling public methods of non public classe is documented (thanks to Jason Mathews).
    The LINK.HTML page has been updated.

1.1.2 - May 8,  1999
    Avoid converting BigInteger to builtin numbers (thanks to Denis Bohm).
    Add support to sort function in Array.sort (thanks to Hannes Wallnoefer)
    Corrected bug in normalize value to support arrays (thanks to Kurt Westerfeld)
    Corrected bug in array enumeration when non indexed properties were present.
    Transformed parameters of JSFunction to JSObject when possible.
1.1.1 - March 15,  1999
    Cleaned up web documentation
    Checked on Linux (the AWT GUI doubles all characters... sorry)
    Very minor cleanup of code
1.1 - March 7,  1999 (not announced)
    WARNING: Use Swing 1.1 (javax.swing) in the swinggui if used with JDK1.1.7 !
    A new option -e allows to load extensions from the command line.
    The Interpreter structure has well as the gui classes have been changed to
    ease subclassing and allow compilation without the Swinf and ORO classes.
    Validated under Java 1.2, includes Java 1.2 compatible ORO classes.
    Added access to CORBA style properties (routines without set/get prefix)
  From Kurt Westerfeld:
    Fix around Console to support the MS environment
    Bug correction in ESObject, avoiding an endless loop if an object which
    does not have a valid default string value is converted to string.
    Added getMetaData() to connection and rowset in the Database extension.

1.0.2 - January 16,  1999

    tryEval now return the evaluated value (rather than the first
    parameter), as is documented and useful (from Kurt Westerfeld).
    Added getVersion and getWelcomeText to the JSUtil package.
    Corrected bug in @listAll of java arrays (from Kurt Westerfeld.
    MathObject initialization moved around to help JBuilder users.
    Corrected bug in EcmaScriptException printing (from Kurt Westerfeld).
    Routine doWork in Interpreter made public (to ease embedding the
      interpreter in user code).
    Enhancement in routine lookup in inside class of interfaces (based
      on an idea of Rich Kadel)

1.0.1 - not released to the general  public

    Use FESI_HOME in batch files (from Matt Humphrey).
    Corrected bug on Date(date) constructor (from Hannes Wallnoefer).
    getWelcomeText made public on evaluator.

1.0 - October 17, 1998 - A small correction in for loop handling. Added ORO libraries to binary distribution.

Beta 4 - Added SetFullYear, corrected bug in new Date() function. Corrected bug in continue used in for and while loops.

Beta 2 - Bug in recursive call of the interpreter corrected.
            A simple editing environment has been added to the Swing version

Beta 3 - Package was renamed Packages for compatibility with Netscape. The Swing development environment was enhanced.

Beta 1 - Some errors in java access of interface routines corrected. FesiForm example added.

Release 0.9 alpha adds:
   (Now works with the "jit", which double the performance (good, but a far cry from the marketing hype!)

• (1): Possibility to catch the original error when a JSException was generated.
• (2): Corrected bug with enumeration of non string returning java objects.
• (3): Corrected bug with indexed access to the arguments special variable, getOriginalException, typeof undefined, added command @pwd, the Database access mechanism.
• (4): Completion of the database interface, addition of evalAsFunction , and some explanation of the option -T in the interpreter .
• (5): Minor internal enhancements to the database interface, regular expression and the tryEval capability. FesiFTP example added.
• (6): Better support for with(javaObject), enhanced FesiFTP example, new File().readAll convenience function, small internal code enhancements. Beware: getLastError in the database extension has been changed to return null (instead of undefined) if there is no error.
• (7): Bug corrections: Close the loaded file or stream in all cases (even in case of error), indicate that that the ProgrammingError exception is caused by FESI internal errors. Enhancements in @describe and @listall commands. Accept empty statements in more places (especially function(){}).

     Added xml parser example using the ibm xml4j package. Added function makeObjectWrapper(object) to JSGlobalObject, allowing to use any object as an JSObject (for example with the eval function, making the object the "this" of the evaluation sequence). Added support for evaluating any string as if it was a function with parameters. Added support for Swing in the interpreter (-s) and as an alternate  extension ( BasicIOs ).
• (8): Corrected a bug in calling some interface class objects. Corrected a buh in the Swing console mode. Added throwError .
• (9): Display value for FIELD and PROPS in  @describe. @load and load() now look in FESI.path or (if not present) in the classpath to find the module. This can include jar and zip files. A command @path display the load path in use. Updated the installation notes.

The version 0.8 adds:

• Support for bean properties as EcmaScript properties even for objects not declared as bean.
• Possibility to give an EcmaScript Array as a parameter for indexed properties or when a native Java array is required.
• Many enhancements in the jslib, including a way to create EcmaScript objects and arrays,  to declare objects as beans and to build functions looking as EcmaScript functions, to get original exception hidden behing JSException. See the FesiPop example too.
• Command @clear added, and commands can be specified by any unique prefix.

There was some confusion with the numbering of 0.8 and 0.9. From 0.9 the patch levels are between parentheses, as in 0.9(2).

The version 0.7 adds:

• Support for bean properties as EcmaScript properties.
• A load routine (as part of BasicIO).
• Speed enhancement (especially for java access).
• Corrected various bugs.

The version 0.6 adds:

• A general event handling capability.
• Loading Java classes from a dynamically specified directory or jar file and dynamic loading of beans (including applets and gif images).
• Various examples of loading beans and event handling.
• The new command describe

The version 0.5 adds:

•     AWT event handling. It is therefore possible to build and experiment with user interface with FESI.

(initial release)