Module nfagen

nfagen module. Used to create characterstic finite automata for grammar rules

Classes

GrammarError

GrammarRule

FlatRule
Class used to turn EBNF grammar rules into list description using numerical identifiers of symbols and tokens.

RuleIter

ConstRule

SequenceRule

AltRule

RepeatRule

MaybeRule

EmptyRule

BeginRule
For testpurposes...

RuleGen

NFAGenerator

Functions

get_nid(item, langlet)

create_lex_nfa(langlet, warnings=(), recreate=False, fullexpansion=True)

create_parse_nfa(langlet, warnings=(), recreate=False, fullexpansion=True)

create_nfa(langlet, warnings=(), recreate=False, typ='parse_nfa', fullexpansion=True)

check(rule_descr)

Variables

EmptyRuleInstance = (None, '-')