voicexml elements

VoiceXML 2.1 Development Guide

<value> element

The value element can be used to insert a variable value for use as a TTS prompt.

usage

<value expr="CDATA">

attributes

expr	Data Type: CDATA	Default: Required
	The expr attribute specifies the ECMAScript expression which evaluates to a string to be rendered by the TTS engine.

shadow variables

none

parents

<audio> <block> <catch> <choice> <enumerate> <error> <field> <filled> <help> <if> <initial> <log> <menu> <nomatch> <prompt> <record> <transfer>

children

none

code samples

<Value expr> sample

<?xml version="1.0" encoding="UTF-8"?>

<vxml version = "2.1">

<meta name="author" content="Matthew Henry"/>
<meta name="copyright" content="2005 voxeo corporation"/>
<meta name="maintainer" content="YOUR_EMAIL@HERE.COM"/>

<form id="F1">

<var name="MyVar" expr="'Dirk Diggler'"/>
<block>
<prompt>
Our favorite movie star is
<value expr="MyVar"/>.
</prompt>
</block>
</form>
</vxml>

additional links

W3C 2.0 Specification

ANNOTATIONS: EXISTING POSTS

moshe

6/4/2004 10:41 AM (EDT)

<prompt> is also a parent of <value>

The explanation of what <value> does is wong, even though that's what the W3C spec says. <value> transforms an ECMA expression into text, and can be used where the interepreter expects text.

Examples: Given

<var name="foo" value="'bar'"/>

In a log,

<log>The value was <value expr="foo"/></log>

prints out "The value was bar."

And in a <prompt>,

<prompt>The value was <value expr="foo"/></prompt>

The system will say "The value was bar."