factor/basis/regexp/backend/backend.factor

28 lines
615 B
Factor

! Copyright (C) 2008 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors hashtables kernel math vectors ;
IN: regexp.backend
TUPLE: regexp
raw
{ options hashtable }
stack
parse-tree
nfa-table
dfa-table
minimized-table
matchers
{ nfa-traversal-flags hashtable }
{ dfa-traversal-flags hashtable }
{ state integer }
{ new-states vector }
{ visited-states hashtable } ;
: reset-regexp ( regexp -- regexp )
0 >>state
V{ } clone >>stack
V{ } clone >>new-states
H{ } clone >>visited-states ;
SYMBOL: current-regexp