This chapter is from the book
This chapter is from the book
This chapter is from the book
This chapter is from the book
3.35 one-of
|
Element type |
one-of |
|
Attributes |
xml:lang |
|
Parents |
item | rule |
|
Children |
item |
|
Description |
Indicates a set of possible choices for a phrase in a rule expansion. |
DTD
<!ELEMENT one-of (item)* > <!ATTLIST one-of xml:lang NMTOKEN #IMPLIED >
Language model
Attributes
-
xml:lang : NMTOKEN
Specifies the spoken language used with this element - for example, en-US for US English.
Children
-
item
Each choice within a one-of element is represented by an item element containing a rule expansion.
Examples
In Example 3-41, the rule uses the one-of elements to accept either "like" or "hate" and either "dogs" or "cats." Hence it will match the following phrases:
-
I like dogs.
-
I hate dogs.
-
I like cats.
-
I hate cats.
Example 3-41 Using one-of to permit multiple utterances to be accepted
<?xml version="1.0" encoding="iso-8859-1"?>
<vxml version="2.0">
<form id="test">
<initial name="dogscats">
<prompt>How do you feel about dogs and cats?</prompt>
</initial>
<grammar xml:lang="en-US" version="1.0" root="colors">
<rule id="colors" scope="public">
<one-of>
<item tag="emotion='like';">like</item>
<item tag="emotion='hate';">hate</item>
</one-of>
<one-of>
<item tag="animal='dogs';">dogs</item>
<item tag="animal='cats';">cats</item>
</one-of>
</rule>
</grammar>
<field name="emotion"/>
<field name="animal"/>
<filled>
<prompt>
You said you
<value expr="emotion"/> <value expr="animal"/>.
</prompt>
</filled>
</form>
</vxml>