Grammar generation for augmented datatypes

A method comprising:

• receiving an extensible markup language (XML) document based on an XML schema definition (XSD) including a plurality of elements having a datatype, each of the plurality of elements including an attribute profile defining a presence or an absence of at least one attribute, and a first element and a second element of the plurality of elements, each including a first particular attribute profile, the XML document including:
• first characters associated with the first element and the first particular attribute profile;
• and
• second characters associated with the second element and the first particular attribute profile;
• and
• encoding the XML document as an efficient XML interchange (EXI) stream, including:
• encoding the first characters according to a first grammar;
• and
• encoding the second characters according to the first grammar.

A method comprising:

• receiving an efficient extensible markup language interchange (EXI) stream including:
• first encoded characters associated with a datatype and a first element including a first particular attribute profile;
• and
• second encoded characters associated with the datatype and a second element including the first particular attribute profile;
• and
• decoding the EXI stream to form an extensible markup language (XML) document, including:
• decoding the first encoded characters based at least in part on a first grammar associated with the first particular attribute profile;
• and
• decoding the second encoded characters based at least in part on the first grammar.

A non-transitory computer-readable medium having encoded therein programming code executable by a processor to perform operations comprising:

• receiving an extensible markup language schema definition (XSD) including a plurality of elements having a datatype, each of the plurality of elements including an attribute profile defining a presence or an absence of at least one attribute, and a first two or more of the plurality of elements including a first particular attribute profile;
• generating a first grammar based on the XSD, the first grammar associated with encoding and decoding extensible markup language (XML) documents based on the XSD to and from efficient XML interchange (EXI) streams, the first grammar associated with the first particular attribute profile;
• and
• associating each of the first two or more of the plurality of elements with the first grammar.