lookahead

Vocabulary

regexp.ast

Definition

IN: regexp.ast

TUPLE: lookahead term ;

Methods

USING: accessors kernel regexp.ast regexp.nfa ;

M: lookahead modify-class
    term>> lookaround-options lookahead boa ;


USING: accessors kernel namespaces regexp.ast
regexp.captures.private ;

M: lookahead number-captures
    term>> number-captures captures-enabled? get
    [ capturing-lookahead boa ] [ <lookahead> ] if ;


USING: accessors kernel namespaces quotations regexp.ast
regexp.compiler regexp.negation ;

M: lookahead question>quot
    f backwards? [
        term>> ast>dfa dfa>shortest-word 1quotation
        [ f ] prepose
    ] with-variable ;