findattr

Purpose

Fetch the attribute named nameString belonging to the concept concept.

Syntax

returnedAttribute = findattr(concept, nameString);

returnedAttribute - type: attr
concept - type: con
nameString - type: str

Returns

An attribute if the concept has an attribute named nameString. If nameString is not a attribute of concept, findattr returns 0.

Remarks

If a bad concept is passed, a warning is written to output log file - "warning: given no concept."

Example

G("myConcept") = makeconcept(findroot(),"a concept");
G("myAttr") = addattr(G("myConcept"),"an attribute");
"output.txt" << attrname(findattr(G("myConcept"),"an attribute")) << "\n";
G("junk") = findattr(G("myConcept"),"duh");
"output.txt" << "junk = " << G("junk");

This prints the following to output.txt:

an attribute
junk = 0