Grammar sub-package

Dragonfly’s core is a language object model containing the following objects:

  • Grammars – these represent collections of rules.
  • Rules – these implement complete or partial voice commands, and contain a hierarchy of elements.
  • Elements – these form the language building blocks of voice commands, and represent literal words, element sequences, references to other rules, etc.

To illustrate this language model, we discuss an example grammar which contains 2 voice commands: “command one” and “(second command | command two) [test]”.

  • Grammar: container for the two voice commands
    • Rule: first voice command rule “command one”
      • Literal element: element for the literal words “command one”. This element is the root-element of the first command rule
    • Rule: second voice command rule “(second command | command two) [test]”
      • Sequence element: root-element of the second command rule
        • Alternative element: first child element of the sequence
          • Literal element: element for the literal words “second command”
          • Literal element: element for the literal words “command two”
        • Optional element: second child element of the sequence
          • Literal element: element for the literal words “test”

All of these different objects are described in the documents listed below.

Grammar sub-package contents

System Message: WARNING/2 (C:\data\projects\Dragonfly\work dragonfly\documentation\grammar-old.txt, line 39)

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