Generate Grammar From an EBNF File

Topic Overview

This topic explains the process of creating a grammar from EBNF content.

The following topics are prerequisites to understanding this topic:

Topic	Purpose
Syntax Parsing Engine Overview	This topic provides an overview of the Syntax Parsing Engine.
Grammar Overview	This topic provides an overview of the Syntax Parsing Engine’s Grammar.
EBNF File Format Overview	This topic gives an overview of the EBNF file format used to define a grammar.

You can create a Grammar instance from an EBNF file using the static methods of the Grammar class:

Both these methods return an EbnfLoadResult instance, which has the following properties:

Property	* Description*
Errors	A collection of EbnfLoadError instances, which will be empty if `Success` is `true` and non-empty if `Success` is `false.` Each `EbnfLoadError` describes a different error with the EBNF file.
Grammar	The `Grammar` instance which was created if Success is `true`. This will be `Null` is `Success` is `false`.
Success	Indicates whether the EBNF file was successfully loaded. If `true`, the `Grammar` property will be the `Grammar` instance created from the file. If `false`, `Errors` will contain one or more errors describing the problems with the document.

The following topics provide additional information related to this topic.

Topic	Purpose
Special Sequence Format	This topic explains the format of the special sequence sections in the EBNF file used to configure the grammar.
EBNF Specification Deviations	This topic explains the deviations from the ISO 14977 specification in the EBNF format used by the Syntax Parsing Engine.
Generate EBNF File From a Grammar	This topic explains the process of creating EBNF content from a grammar.