B2B Integration : A Practical Guide to Collaborative E-commerce

352 B2B Integration — A Practical Guide to Collaborative E-commerce
1.
2.
3.
4.
5.
6.
7.
12.3.3. WMLScript
Continued from page 351
paragraph
check the Accept and Previous
buttons
go to this URL
perform and action
close do loop
end card
WMLScript is a scripting language that employs procedural logic,
loops and conditionals that are optimized for small-memory, small-CPU
devices. It is derived from European Computer Manufacturers Script
(ECMAScript). WMLScript is integrated with WML, which results in
a powerful extension mechanism that serves to reduce overall network
traffic and enhance functionality. Typically, WMLScript is used for field
validation, device extensions and conditional logic. With WMLScript,
compiled byte code is transferred to the terminal. Standard libraries
include: Lang for general purpose math functionality, string processing,
Universal Resource Locator (URL) processing, WML browser interface,
dialogue and floating point functions.
Some representative code is as follows:
1.
2.
3.
4.
5.
6.
The WMLScript example — Script part
//random.wmls
external function getRandom ( ) {
var r= Lang.random(lOO)
WMLBrowser.setVar("result", r);
WMLBrowser.go("random.wml#card2");
}
The WML part which calls WMLScript
comment
start of function
variable
end of function