Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 663)

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101

CHAPTER 18

Intelligent Assistant

Using the Assistant 18-17

Based on the deﬁnition above, you can derive a my_other_action template that

holds the value

'my_action in its isa slot, as in the following example:

my_other_action := {

// name of this action

value: "my other action",

// subclass of 'dyna_user_action

isa: 'my_action,

// words matching this action

lexicon: ["leap", "lunge"]

}

You can take a similar approach to deﬁne your own target object types by placing

the

'dyna_user_obj symbol in your target template’s isa slot. For example,

you can deﬁne a template

my_target that is a dyna_user_obj and use its

symbol in this slot also, as in the following code fragment:

my_target := {

value: "my target" // name of this target

isa: 'dyna_user_obj // must use this value

}

Based on the deﬁnition above, you can derive another target template from

my_target, and store the value 'my_target in its isa slot, as in the following

example:

my_other_target := {

value:"my other target",// name of this targe

isa: 'my_target, // subclass of 'dyna_user_obj

}

Implementing the PostParse Method 18

Your PostParse method implements the behavior your application provides

through the Assistant. This method resides in the

PostParse slot of your

task template. It is called after all the templates in the

signature slot have

been matched.

Your

PostParse method must provide any behavior required to complete the

speciﬁed task, such as obtaining additional information from the

ParseUtter

result frame as necessary, and handling error conditions.

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Apple Newton Utilities Guide de l'utilisateur Page 663

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