Note
Please see Azure Cognitive Services for Speech documentation for the latest supported speech solutions.
GrammarBuilder Constructor (String, Int32, Int32)
Initializes a new instance of the GrammarBuilder class from the sequence of words in a String and specifies how many times the String can be repeated.
Namespace: Microsoft.Speech.Recognition
Assembly: Microsoft.Speech (in Microsoft.Speech.dll)
Syntax
'Declaration
Public Sub New ( _
phrase As String, _
minRepeat As Integer, _
maxRepeat As Integer _
)
'Usage
Dim phrase As String
Dim minRepeat As Integer
Dim maxRepeat As Integer
Dim instance As New GrammarBuilder(phrase, _
minRepeat, maxRepeat)
public GrammarBuilder(
string phrase,
int minRepeat,
int maxRepeat
)
Parameters
- phrase
Type: System.String
The repeated sequence of words.
- minRepeat
Type: System.Int32
The minimum number of times that input matching the phrase must occur to constitute a match.
- maxRepeat
Type: System.Int32
The maximum number of times that input matching the phrase can occur to constitute a match.
Remarks
If the value of minRepeat is 0, then the new GrammarBuilder represents an optional element.
The value of minRepeat must be greater than or equal to 0 and less than or equal to the value of maxRepeat. For more information about building a speech recognition grammar that contains strings, see Use a String to Create a GrammarBuilder (Microsoft.Speech).
Examples
The following example creates a speech recognition grammar for ordering a pizza. It starts with an optional, opening phrase, followed by one to four toppings, and closes with the word "pizza".
private static Grammar CreatePizzaGrammar()
{
// Create a Choices object with alternatives for toppings.
Choices toppings = new Choices(new string[] {
"cheese", "mushroom", "tomato", "onion",
"anchovy", "chicken", "pepperoni"});
// Create a GrammarBuilder and append the Choices object.
GrammarBuilder andToppings = new GrammarBuilder("and", 0, 1);
andToppings.Append(toppings);
// Construct the phrase.
GrammarBuilder gb = new GrammarBuilder("I would like a", 0, 1);
gb.Append(toppings);
gb.Append(new GrammarBuilder(andToppings, 0, 3));
gb.Append("pizza");
// Create the Grammar from the GrammarBuilder.
Grammar grammar = new Grammar(gb);
grammar.Name = "Pizza Order";
return grammar;
}