oslTestAttr (
        obj,
        attrName,
        op,
        value,
        )

oslTestAttr Compares an attribute of this instance with the given value attrName is the name of the attribute op is the string representation of the comparison operator value is the constant (string) value to compare with

applyFunctions (
        s,
        graphs,
        gFunc,
        sFunc,
        vFunc,
        )

Base on an object specification string, apply functions to selected graphs, subgraphs and vertices in the given graph list. The graph list can either be a simple list, or a dictionary whose values are lists of graphs. Any of the supplied functions may be None.

registerTest ( subject,  testFunc )

Parser

OSLSyntaxError