Talk:Nasal scripting language

Contents that need to be incorporated

Todo

• mention/explain nil
• shorthand ops: += *= ~= /=
• operator precedence, prioritizing expressions using parentheses
• multi-assignments don't work as expected for functions with multiple return values

Mailing List Discussions

Usage

• Use of listeners to wait for events
• Nasal & "var"
• nasal variables
• Nasal, systime()
• Nasal, airportinfo()
• Nasal, removelistener
• logging nasal listener calls
• new features
• Nasal in scenery object XML files
• Nasal in scenery object XML files
• New Nasal Features (named function args, vector slicing, multi-assignments)
• Adding a nasal function in C/C++
• Nasal: new props.Node methods: alias()/unalias()
• nasal hash, populating via foreach
• new Nasal module: debug.nas
• logging to XML

Features

• nasal development news
• Nasal: new command "removelistener()"
• New Nasal in CVS
• nasal functionality?
• nasal iolib & security

Nasal Modules

Moving to Nasal Modules.

setprop() functionality

setprop() concatenates a list of input arguments by means of inserting a "/" in between. That is nice for properties, as this slash is part of the tree. However, when one wants to make use of indices, like [0], one has to concatenate by hand (using "~") inside one part of the string argument list. An example is:

 var i = 4;
 setprop("instrumentation","cdu","page["~i~"]","title","MENU");

This results in instrumentation/cdu/page[4]/title = 'MENU' (string). Hcc23