Grammar generation for augmented datatypes for efficient extensible markup language interchange

A method comprising:

• receiving an extensible markup language (XML) document that is based on an XML schema definition (XSD) that includes a plurality of elements having a datatype, each of the plurality of elements having an attribute profile, the attribute profile defining a presence or an absence of a first attribute that includes a typable attribute and the attribute profile defining a presence or an absence of a second attribute that includes a nillable attribute, the plurality of elements including a first element and a second element, the first element and the second element having different element names, the first element having a first particular attribute profile and the second element also having the first particular attribute profile, the XSD having a corresponding first grammar that is generated based on the first particular attribute profile, the first element and the second element being assigned to the first grammar based on the first element and the second element having the first particular attribute profile and based on the first grammar being generated based on the 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 the first grammar based on the first characters being associated with the first element and based on the first element being assigned to the first grammar;
• and
• encoding the second characters according to the first grammar based on the second characters being associated with the second element and based on the second element being assigned to the first grammar.