CodeQL library for Python
codeql/python-all 0.11.13 (changelog, source)

Predicate Make::deltaClosed

Holds if there is a state q that can be reached from q1 along epsilon edges, such that there is a transition from q to q2 that consumes symbol s.

Import path

import codeql.regex.nfa.NfaUtils
predicate deltaClosed(State q1, InputSymbol s, State q2)