NetAlive Documentation

Function Tutorial (Filtering)

This tutorial shows how to filter Internet data to separate useful information from formatting.

This tutorial has a sample program that gets Internet data and filters it with a simple Perl function.

The sample's parts can be used separately: the user can get Internet data once and apply the function many times (this is useful for developing the function's source code).

The sample has a simple Perl function, but the user can use the design tool to change the function and test it. In fact, this sample can serve as a "development tool" to create functions for transfer to a palette or another NetAlive application once developed.

Interactive Demonstration

Press to invoke tutfunc.net.

Create input for the sample function in one of two ways:

• Type a URL and <return>. The application loads the URL and stores it.
• Edit the file c:\temp\netalive\test.tst.

Either way, the input gets stored in a disk file and will be available the next time the sample starts. The current input is displayed for convenience.

Press the ">>Function>>" button. NetAlive runs the function and puts the result in the "Output:" area.

Switch to "Task definitions" view and scroll to the task ">>Function>>." You may now edit the function.

Start the application by "Control -- Run" from the menu (or hitting the "rocket" on the button bar).

[NetAlive Documentation Home Page][NetAlive Home Page]