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#include <gfsmRegexCompiler.h>
#include <gfsmArith.h>
#include <gfsmUtils.h>
#define RETURN(rec,_rea) (rec)->rea=(_rea); return (_rea);
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_epsilon(gfsmRegexCompiler *rec)
{
rec->rea.typ = gfsmREATEmpty;
rec->rea.val.lab = 0;
return rec->rea;
}
//--------------------------------------------------------------
gfsmAutomaton *gfsm_regex_automaton_new_fsm(gfsmRegexCompiler *rec)
{
gfsmAutomaton *fsm = gfsm_automaton_new_full(gfsmAutomatonDefaultFlags,
rec->srtype,
gfsmAutomatonDefaultSize);
fsm->flags.is_transducer = FALSE;
return fsm;
}
//--------------------------------------------------------------
gfsmAutomaton *gfsm_regex_automaton_epsilon_fsm(gfsmRegexCompiler *rec)
{
gfsmAutomaton *fsm = gfsm_regex_automaton_new_fsm(rec);
fsm->root_id = gfsm_automaton_add_state(fsm);
gfsm_automaton_set_final_state(fsm,fsm->root_id,TRUE);
return fsm;
}
//--------------------------------------------------------------
gfsmAutomaton *gfsm_regex_automaton_label_fsm(gfsmRegexCompiler *rec, gfsmLabelVal lab)
{
gfsmAutomaton *fsm = gfsm_regex_automaton_new_fsm(rec);
gfsmStateId labid;
fsm->root_id = gfsm_automaton_add_state(fsm);
labid = gfsm_automaton_add_state(fsm);
gfsm_automaton_add_arc(fsm, fsm->root_id, labid, lab, lab, fsm->sr->one);
gfsm_automaton_set_final_state(fsm,labid,TRUE);
return fsm;
}
//--------------------------------------------------------------
gfsmAutomaton *gfsm_regex_automaton_fsm(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea)
{
switch (rea.typ) {
case gfsmREATEmpty:
return gfsm_regex_automaton_epsilon_fsm(rec);
break;
case gfsmREATLabel:
return gfsm_regex_automaton_label_fsm(rec, rea.val.lab);
break;
case gfsmREATFull:
default:
return rea.val.fsm;
break;
}
}
//--------------------------------------------------------------
gfsmAutomaton *gfsm_regex_automaton_expand(gfsmRegexCompiler *rec, gfsmRegexAutomaton *rea)
{
rea->val.fsm = gfsm_regex_automaton_fsm(rec,*rea);
rea->typ = gfsmREATFull;
return rea->val.fsm;
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_label(gfsmRegexCompiler *rec, gfsmLabelVal lab)
{
rec->rea.typ = gfsmREATLabel;
rec->rea.val.lab = lab;
return rec->rea;
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_concat(gfsmRegexCompiler *rec,
gfsmRegexAutomaton rea1,
gfsmRegexAutomaton rea2)
{
switch (rea2.typ) {
case gfsmREATEmpty:
break;
case gfsmREATLabel:
gfsm_regex_automaton_append_lab(rec, gfsm_regex_automaton_expand(rec,&rea1), rea2.val.lab);
break;
case gfsmREATFull:
default:
gfsm_automaton_concat(gfsm_regex_automaton_expand(rec,&rea1), rea2.val.fsm);
gfsm_automaton_free(rea2.val.fsm);
break;
}
RETURN(rec,rea1);
}
//--------------------------------------------------------------
struct _gfsm_regex_append_lab_data {
gfsmAutomaton *fsm;
gfsmLabelVal lab;
gfsmStateId newid;
};
gboolean _gfsm_regex_append_lab_foreach_func(gfsmStateId qid, gpointer pw,
struct _gfsm_regex_append_lab_data *data)
{
gfsm_automaton_get_state(data->fsm,qid)->is_final = FALSE;
gfsm_automaton_add_arc(data->fsm, qid, data->newid, data->lab, data->lab, gfsm_ptr2weight(pw));
return FALSE;
}
gfsmAutomaton *gfsm_regex_automaton_append_lab(gfsmRegexCompiler *rec, gfsmAutomaton *fsm, gfsmLabelVal lab)
{
struct _gfsm_regex_append_lab_data data = { fsm, lab, gfsm_automaton_add_state(fsm) };
gfsm_weightmap_foreach(fsm->finals,
(GTraverseFunc)_gfsm_regex_append_lab_foreach_func,
&data);
gfsm_weightmap_clear(fsm->finals);
gfsm_automaton_set_final_state(fsm, data.newid, TRUE);
return fsm;
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_closure(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea, gboolean is_plus)
{
gfsm_automaton_closure(gfsm_regex_automaton_expand(rec,&rea),is_plus);
RETURN(rec,rea);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_power(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea, guint32 n)
{
gfsm_automaton_n_closure(gfsm_regex_automaton_expand(rec,&rea),n);
RETURN(rec,rea);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_project(gfsmRegexCompiler *rec,
gfsmRegexAutomaton rea,
gfsmLabelSide which)
{
gfsm_automaton_project(gfsm_regex_automaton_expand(rec,&rea),which);
RETURN(rec,rea);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_optional(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea)
{
gfsm_automaton_optional(gfsm_regex_automaton_expand(rec,&rea));
RETURN(rec,rea);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_complement(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea)
{
gfsm_automaton_complement_full(gfsm_regex_automaton_expand(rec,&rea),rec->abet);
RETURN(rec,rea);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_union(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea1, gfsmRegexAutomaton rea2)
{
gfsm_automaton_union(gfsm_regex_automaton_expand(rec,&rea1),gfsm_regex_automaton_expand(rec,&rea2));
gfsm_automaton_free(gfsm_regex_automaton_expand(rec,&rea2));
RETURN(rec,rea1);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_intersect(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea1, gfsmRegexAutomaton rea2)
{
gfsm_automaton_intersect(gfsm_regex_automaton_expand(rec,&rea1),gfsm_regex_automaton_expand(rec,&rea2));
gfsm_automaton_free(gfsm_regex_automaton_expand(rec,&rea2));
RETURN(rec,rea1);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_product(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea1, gfsmRegexAutomaton rea2)
{
_gfsm_automaton_product(gfsm_regex_automaton_expand(rec,&rea1),gfsm_regex_automaton_expand(rec,&rea2));
gfsm_automaton_free(gfsm_regex_automaton_expand(rec,&rea2));
RETURN(rec,rea1);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_compose(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea1, gfsmRegexAutomaton rea2)
{
gfsm_automaton_compose(gfsm_regex_automaton_expand(rec,&rea1),gfsm_regex_automaton_expand(rec,&rea2));
gfsm_automaton_free(gfsm_regex_automaton_expand(rec,&rea2));
RETURN(rec,rea1);
}
//--------------------------------------------------------------
gfsmRegexAutomaton gfsm_regex_automaton_difference(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea1, gfsmRegexAutomaton rea2)
{
gfsm_automaton_difference(gfsm_regex_automaton_expand(rec,&rea1),gfsm_regex_automaton_expand(rec,&rea2));
gfsm_automaton_free(gfsm_regex_automaton_expand(rec,&rea2));
RETURN(rec,rea1);
}
//--------------------------------------------------------------
/** Weight */
gfsmRegexAutomaton gfsm_regex_automaton_weight(gfsmRegexCompiler *rec, gfsmRegexAutomaton rea, gfsmWeight w)
{
gfsm_automaton_arith_final(gfsm_regex_automaton_expand(rec,&rea), gfsmAOSRTimes, w, FALSE);
RETURN(rec,rea);
}
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