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/*=============================================================================*\
* File: gfsmIndexed.c
* Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
* Description: finite state machine library: arc indices
*
* Copyright (c) 2007 Bryan Jurish.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*=============================================================================*/
#include <gfsmIndexed.h>
#include <gfsmArcIter.h>
//-- no-inline definitions
#ifndef GFSM_INLINE_ENABLED
# include <gfsmIndexed.hi>
#endif
/*======================================================================
* Constructors etc.
*/
//----------------------------------------
gfsmIndexedAutomaton *gfsm_indexed_automaton_copy(gfsmIndexedAutomaton *dst, gfsmIndexedAutomaton *src)
{
if (!dst) {
dst = gfsm_indexed_automaton_new_full(src->flags,
src->sr->type,
gfsm_indexed_automaton_n_states(src),
gfsm_indexed_automaton_n_arcs(src));
}
else {
gfsm_indexed_automaton_clear(dst);
gfsm_indexed_automaton_reserve_states(dst, gfsm_indexed_automaton_n_states(src));
gfsm_indexed_automaton_reserve_arcs (dst, gfsm_indexed_automaton_n_arcs(src) );
}
//-- copy: flags, semiring, root
dst->flags = src->flags;
gfsm_indexed_automaton_set_semiring(dst, src->sr);
dst->root_id = src->root_id;
//-- copy: tables
gfsm_weight_vector_copy (dst->state_final_weight, src->state_final_weight);
gfsm_arc_table_index_copy(dst->arcs, src->arcs);
return dst;
}
/*======================================================================
* Methods: Import & Export
*/
//----------------------------------------
gfsmIndexedAutomaton *gfsm_automaton_to_indexed(gfsmAutomaton *fsm, gfsmIndexedAutomaton *xfsm)
{
//-- maybe allocate new indexed automaton
if (xfsm==NULL) {
xfsm = gfsm_indexed_automaton_new_full(fsm->flags,
fsm->sr->type,
gfsm_automaton_n_states(fsm),
gfsm_automaton_n_arcs(fsm)
);
} else {
gfsm_indexed_automaton_clear(xfsm);
xfsm->flags = fsm->flags;
gfsm_indexed_automaton_reserve_states(xfsm,gfsm_automaton_n_states(fsm));
gfsm_indexed_automaton_reserve_arcs(xfsm,gfsm_automaton_n_arcs(fsm));
}
gfsm_indexed_automaton_set_semiring(xfsm,fsm->sr); //-- copy semiring
//-- set root id
xfsm->root_id = fsm->root_id;
//-- index final weights
gfsm_automaton_to_final_weight_vector(fsm, xfsm->state_final_weight);
gfsm_automaton_to_arc_table_index(fsm, xfsm->arcs);
//-- sort arcs (no!)
//gfsm_indexed_automaton_sort(xfsm, xfsm->flags.sort_mode);
return xfsm;
}
//----------------------------------------
gfsmAutomaton *gfsm_indexed_to_automaton(gfsmIndexedAutomaton *xfsm, gfsmAutomaton *fsm)
{
gfsmStateId qid;
gfsmWeight srzero;
//-- maybe allocate new automaton
if (fsm==NULL) {
fsm = gfsm_automaton_new_full(xfsm->flags, xfsm->sr->type, gfsm_indexed_automaton_n_states(xfsm));
} else {
gfsm_automaton_clear(fsm);
fsm->flags = xfsm->flags;
gfsm_automaton_set_semiring(fsm, gfsm_semiring_copy(xfsm->sr));
gfsm_automaton_reserve(fsm, gfsm_indexed_automaton_n_states(xfsm));
}
//-- set root id
fsm->root_id = xfsm->root_id;
//-- update state-wise
srzero = xfsm->sr->zero;
for (qid=0; qid < xfsm->state_final_weight->len; qid++) {
gfsmArcRange range;
//-- state_final_weight
gfsmWeight fw = g_array_index(xfsm->state_final_weight,gfsmWeight,qid);
if (fw != srzero) { gfsm_automaton_set_final_state_full(fsm,qid,TRUE,fw); }
//-- arcs
for (gfsm_arcrange_open_indexed(&range, xfsm, qid); gfsm_arcrange_ok(&range); gfsm_arcrange_next(&range)) {
gfsmArc *a = gfsm_arcrange_arc(&range);
gfsm_automaton_add_arc(fsm,a->source,a->target,a->lower,a->upper,a->weight);
}
gfsm_arcrange_close(&range);
}
return fsm;
}
/*======================================================================
* Methods: Accessors: gfsmIndexedAutomaton
*/
//-- inlined
/*======================================================================
* Methods: Accessors: gfsmAutomaton API: Automaton
*/
//-- inlined
/*======================================================================
* Methods: Accessors: gfsmAutomaton API: States
*/
//-- inlined
/*======================================================================
* I/O
*/
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