Inherits from: object

Implements the 28 by 28 composition table. Takes care of loading
the table from file and retrieving compositions from the table.

Public Functions

__init__(self, compositions_file)
Read the compositions file and load all compositions into the
data instance variable.

compose_rels(self, rel1, rel2)
Looks up the composition of rel1 and rel2 and returns it.

pp(self, filename)
Print an html table to filename.

compare_id(a, b)

html_graph_prefix(fh)

intersect_lists(l1, l2)
Returns the intersection of two lists. The result will not contain
duplicate elements and list order is not preserved.

intersect_relations(rels1, rels2)
Returns the intersection of two relation sets. Returns None if both
of the two sets are None.

massage(str)
Prepare the string representation of a relation set for printing in
html.