MicroAPL announces the commercial release of APLX Version 4 for Windows and MacOS. APLX Version 4 for Linux is now also available, as a public beta. APLX Server Editions, and 64-bit implementations, will follow in Q1 2008.

You can download free-of-charge evaluation copies of APLX Version 4 from the MicroAPL website http://www.microapl.co.uk/apl. You are also invited to visit our website to take part in the APLX for Linux public beta program.

This is a quick summary of the features introduced in Version 4 (see http://www.microapl.co.uk/apl/aplx_new_40.html for further details):

Major Language Enhancements

• Support for object-oriented programming with user-defined APL

classes.

• Support for object-oriented programming using external classes

written in the .Net languages (such as C# and Visual Basic), Java, and Ruby, using natural dot-notation syntax.

• Extensible interface for other object-oriented languages such as C+

+.

• A range of new System Functions and System Methods to use with

classes written in APL or in other languages.

• New system functions for import and export of data in a variety of

formats including CSV, TSV, HTML, SYLK, and Unicode UCF-8 or UCF-16 text.

• Regular-expression searching.
• Structured-Control Error Handling

using :Try :CatchIf :CatchAll :EndTry.

• Zilde (empty numeric vector) system constant.

User-interface enhancements

• New QuickSym input method for entering APL symbols without a

special APL keyboard layout (see summary athttp://www.microapl.co.uk/apl/aplx_quicksym.html) .

• Powerful new general-array editor allows editing of almost any

simple, mixed or nested array, and of the properties of APL objects.

• New class editor for writing user-defined APL classes.
• Copy/Paste of arrays in various formats for exchange with Excel

and other applications.

• Enhancements to Workspace Explorer and Edit windows to support

class methods and properties.

• New workspace-search feature for rapid search or search-and-

replace of a string (or regular expression) in the workspace.

Performance Enhancements

• Major speed-ups to most string searches.
• Major speed-up to outer product using the Match primitive.
• Many primitives enhanced for faster operation on large arrays.

The MicroAPL Team

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