Package gavo :: Package dm :: Module sil

Module sil

SIL, the Simple Instance Language, is an attempt to allow data model instances written in a simple, JSON-like language.

Classes
	Atom a sentinel class for atomic values of roles
	Reference a sentinel class for roles referencing something else.
	getGrammar returns a grammar for parsing a SIL object description.

Functions

iterparse(silLiteral)
yields parse events for a SIL literal in a string.

source code

getAnnotation(silLiteral, annotationFactory)
returns an annotation object parsed from silLiteral.

source code

Variables
	__package__ = `'gavo.dm'`

Function Details

iterparse(silLiteral)

source code

yields parse events for a SIL literal in a string.

The parse events are triples of one of the forms:

* ('attr', roleName, value) add an attribute to the current annotation * ('obj', roleName, type) create a new object object of type * ('coll', type, None) create a new collection annotation (type can be None) * ('item', val, None) add an atomic value to the current collection * ('pop', None, None) finish current annotation and add it to its container

getAnnotation(silLiteral, annotationFactory)

source code

returns an annotation object parsed from silLiteral.

annotationFactory is a callable that takes attributeName/attributeValue pairs and returns annotations; attributeValue is either an Atom or a Reference in these cases.