What's XFL

XFL programming was part of the EntwicklerCamp in 2007 and 2008 .

The Extended Formula Language improves the native formula language of Lotus Notes in several important points, e.g.:

Real formula debugging

Do not slave away at pseudo debugging using @Prompt any longer! Take the XFL @Formula debugger. It can be so easy! You even can use a SmartIcon to activate or deactivate the debugger.

Define your own @Functions

Add new @Functions to the formula language or define alias names to existing functions.

Example:
DEFINE @MyFunction(x) := x*x;
FIELD Value2 := @MyFunction(Value1)

You also can easily embed functions of your LotusScript libraries and make them usable as new @Functions.

XFL makes @For, @While, @Eval, @Goto etc. available even for Notes R4/R5

A lot of new @Functions are implemented in XFL as well.

Use LotusScript code within your formula code

Use @Execute to take advantage from the LotusScript language in your formulas.

Object oriented programming in formulas

You can use LotusScript classes and handle objects by formula.

Example:
OBJECT session := @CreateObject("NotesSession");
OBJECT mydb := session.currentdatabase;
FIELD Size := mydb.maxsize;

... and much more. Just read the documentation file to find out all the features.

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