2 * Copyright 2002-2004 Adrian Thurston <thurston@complang.org>
5 /* This file is part of Ragel.
7 * Ragel is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * Ragel is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Ragel; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 CondData *condData = 0;
30 /* Insert an action into an action table. */
31 void ActionTable::setAction( int ordering, Action *action )
33 /* Multi-insert in case specific instances of an action appear in a
34 * transition more than once. */
35 insertMulti( ordering, action );
38 /* Set all the action from another action table in this table. */
39 void ActionTable::setActions( const ActionTable &other )
41 for ( ActionTable::Iter action = other; action.lte(); action++ )
42 insertMulti( action->key, action->value );
45 void ActionTable::setActions( int *orderings, Action **actions, int nActs )
47 for ( int a = 0; a < nActs; a++ )
48 insertMulti( orderings[a], actions[a] );
51 bool ActionTable::hasAction( Action *action )
53 for ( int a = 0; a < length(); a++ ) {
54 if ( data[a].value == action )
60 /* Insert an action into an action table. */
61 void LmActionTable::setAction( int ordering, LongestMatchPart *action )
63 /* Multi-insert in case specific instances of an action appear in a
64 * transition more than once. */
65 insertMulti( ordering, action );
68 /* Set all the action from another action table in this table. */
69 void LmActionTable::setActions( const LmActionTable &other )
71 for ( LmActionTable::Iter action = other; action.lte(); action++ )
72 insertMulti( action->key, action->value );
75 void ErrActionTable::setAction( int ordering, Action *action, int transferPoint )
77 insertMulti( ErrActionTableEl( action, ordering, transferPoint ) );
80 void ErrActionTable::setActions( const ErrActionTable &other )
82 for ( ErrActionTable::Iter act = other; act.lte(); act++ )
83 insertMulti( ErrActionTableEl( act->action, act->ordering, act->transferPoint ) );
86 /* Insert a priority into this priority table. Looks out for priorities on
88 void PriorTable::setPrior( int ordering, PriorDesc *desc )
91 PriorEl *insed = insert( PriorEl(ordering, desc), &lastHit );
93 /* This already has a priority on the same key as desc. Overwrite the
94 * priority if the ordering is larger (later in time). */
95 if ( ordering >= lastHit->ordering )
96 *lastHit = PriorEl( ordering, desc );
100 /* Set all the priorities from a priorTable in this table. */
101 void PriorTable::setPriors( const PriorTable &other )
103 /* Loop src priorities once to overwrite duplicates. */
104 PriorTable::Iter priorIt = other;
105 for ( ; priorIt.lte(); priorIt++ )
106 setPrior( priorIt->ordering, priorIt->desc );
109 /* Set the priority of starting transitions. Isolates the start state so it has
110 * no other entry points, then sets the priorities of all the transitions out
111 * of the start state. If the start state is final, then the outPrior of the
112 * start state is also set. The idea is that a machine that accepts the null
113 * string can still specify the starting trans prior for when it accepts the
115 void FsmAp::startFsmPrior( int ordering, PriorDesc *prior )
117 /* Make sure the start state has no other entry points. */
120 /* Walk all transitions out of the start state. */
121 for ( TransList::Iter trans = startState->outList; trans.lte(); trans++ ) {
122 if ( trans->toState != 0 )
123 trans->priorTable.setPrior( ordering, prior );
126 /* If the new start state is final then set the out priority. This follows
127 * the same convention as setting start action in the out action table of
128 * a final start state. */
129 if ( startState->stateBits & STB_ISFINAL )
130 startState->outPriorTable.setPrior( ordering, prior );
133 /* Set the priority of all transitions in a graph. Walks all transition lists
134 * and all def transitions. */
135 void FsmAp::allTransPrior( int ordering, PriorDesc *prior )
137 /* Walk the list of all states. */
138 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
139 /* Walk the out list of the state. */
140 for ( TransList::Iter trans = state->outList; trans.lte(); trans++ ) {
141 if ( trans->toState != 0 )
142 trans->priorTable.setPrior( ordering, prior );
147 /* Set the priority of all transitions that go into a final state. Note that if
148 * any entry states are final, we will not be setting the priority of any
149 * transitions that may go into those states in the future. The graph does not
150 * support pending in transitions in the same way pending out transitions are
152 void FsmAp::finishFsmPrior( int ordering, PriorDesc *prior )
154 /* Walk all final states. */
155 for ( StateSet::Iter state = finStateSet; state.lte(); state++ ) {
156 /* Walk all in transitions of the final state. */
157 for ( TransInList::Iter trans = (*state)->inList; trans.lte(); trans++ )
158 trans->priorTable.setPrior( ordering, prior );
162 /* Set the priority of any future out transitions that may be made going out of
163 * this state machine. */
164 void FsmAp::leaveFsmPrior( int ordering, PriorDesc *prior )
166 /* Set priority in all final states. */
167 for ( StateSet::Iter state = finStateSet; state.lte(); state++ )
168 (*state)->outPriorTable.setPrior( ordering, prior );
172 /* Set actions to execute on starting transitions. Isolates the start state
173 * so it has no other entry points, then adds to the transition functions
174 * of all the transitions out of the start state. If the start state is final,
175 * then the func is also added to the start state's out func list. The idea is
176 * that a machine that accepts the null string can execute a start func when it
177 * matches the null word, which can only be done when leaving the start/final
179 void FsmAp::startFsmAction( int ordering, Action *action )
181 /* Make sure the start state has no other entry points. */
184 /* Walk the start state's transitions, setting functions. */
185 for ( TransList::Iter trans = startState->outList; trans.lte(); trans++ ) {
186 if ( trans->toState != 0 )
187 trans->actionTable.setAction( ordering, action );
190 /* If start state is final then add the action to the out action table.
191 * This means that when the null string is accepted the start action will
192 * not be bypassed. */
193 if ( startState->stateBits & STB_ISFINAL )
194 startState->outActionTable.setAction( ordering, action );
197 /* Set functions to execute on all transitions. Walks the out lists of all
199 void FsmAp::allTransAction( int ordering, Action *action )
201 /* Walk all states. */
202 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
203 /* Walk the out list of the state. */
204 for ( TransList::Iter trans = state->outList; trans.lte(); trans++ ) {
205 if ( trans->toState != 0 )
206 trans->actionTable.setAction( ordering, action );
211 /* Specify functions to execute upon entering final states. If the start state
212 * is final we can't really specify a function to execute upon entering that
213 * final state the first time. So function really means whenever entering a
214 * final state from within the same fsm. */
215 void FsmAp::finishFsmAction( int ordering, Action *action )
217 /* Walk all final states. */
218 for ( StateSet::Iter state = finStateSet; state.lte(); state++ ) {
219 /* Walk the final state's in list. */
220 for ( TransInList::Iter trans = (*state)->inList; trans.lte(); trans++ )
221 trans->actionTable.setAction( ordering, action );
225 /* Add functions to any future out transitions that may be made going out of
226 * this state machine. */
227 void FsmAp::leaveFsmAction( int ordering, Action *action )
229 /* Insert the action in the outActionTable of all final states. */
230 for ( StateSet::Iter state = finStateSet; state.lte(); state++ )
231 (*state)->outActionTable.setAction( ordering, action );
234 /* Add functions to the longest match action table for constructing scanners. */
235 void FsmAp::longMatchAction( int ordering, LongestMatchPart *lmPart )
237 /* Walk all final states. */
238 for ( StateSet::Iter state = finStateSet; state.lte(); state++ ) {
239 /* Walk the final state's in list. */
240 for ( TransInList::Iter trans = (*state)->inList; trans.lte(); trans++ )
241 trans->lmActionTable.setAction( ordering, lmPart );
245 void FsmAp::fillGaps( StateAp *state )
247 if ( state->outList.length() == 0 ) {
248 /* Add the range on the lower and upper bound. */
249 attachNewTrans( state, 0, keyOps->minKey, keyOps->maxKey );
253 srcList.transfer( state->outList );
255 /* Check for a gap at the beginning. */
256 TransList::Iter trans = srcList, next;
257 if ( keyOps->minKey < trans->lowKey ) {
258 /* Make the high key and append. */
259 Key highKey = trans->lowKey;
262 attachNewTrans( state, 0, keyOps->minKey, highKey );
265 /* Write the transition. */
267 state->outList.append( trans );
269 /* Keep the last high end. */
270 Key lastHigh = trans->highKey;
272 /* Loop each source range. */
273 for ( trans = next; trans.lte(); trans = next ) {
274 /* Make the next key following the last range. */
275 Key nextKey = lastHigh;
278 /* Check for a gap from last up to here. */
279 if ( nextKey < trans->lowKey ) {
280 /* Make the high end of the range that fills the gap. */
281 Key highKey = trans->lowKey;
284 attachNewTrans( state, 0, nextKey, highKey );
287 /* Reduce the transition. If it reduced to anything then add it. */
289 state->outList.append( trans );
291 /* Keep the last high end. */
292 lastHigh = trans->highKey;
295 /* Now check for a gap on the end to fill. */
296 if ( lastHigh < keyOps->maxKey ) {
297 /* Get a copy of the default. */
298 lastHigh.increment();
300 attachNewTrans( state, 0, lastHigh, keyOps->maxKey );
305 void FsmAp::setErrorActions( StateAp *state, const ActionTable &other )
307 /* Fill any gaps in the out list with an error transition. */
310 /* Set error transitions in the transitions that go to error. */
311 for ( TransList::Iter trans = state->outList; trans.lte(); trans++ ) {
312 if ( trans->toState == 0 )
313 trans->actionTable.setActions( other );
317 void FsmAp::setErrorAction( StateAp *state, int ordering, Action *action )
319 /* Fill any gaps in the out list with an error transition. */
322 /* Set error transitions in the transitions that go to error. */
323 for ( TransList::Iter trans = state->outList; trans.lte(); trans++ ) {
324 if ( trans->toState == 0 )
325 trans->actionTable.setAction( ordering, action );
330 /* Give a target state for error transitions. */
331 void FsmAp::setErrorTarget( StateAp *state, StateAp *target, int *orderings,
332 Action **actions, int nActs )
334 /* Fill any gaps in the out list with an error transition. */
337 /* Set error target in the transitions that go to error. */
338 for ( TransList::Iter trans = state->outList; trans.lte(); trans++ ) {
339 if ( trans->toState == 0 ) {
340 /* The trans goes to error, redirect it. */
341 redirectErrorTrans( trans->fromState, target, trans );
342 trans->actionTable.setActions( orderings, actions, nActs );
347 void FsmAp::transferOutActions( StateAp *state )
349 for ( ActionTable::Iter act = state->outActionTable; act.lte(); act++ )
350 state->eofActionTable.setAction( act->key, act->value );
351 state->outActionTable.empty();
354 void FsmAp::transferErrorActions( StateAp *state, int transferPoint )
356 for ( int i = 0; i < state->errActionTable.length(); ) {
357 ErrActionTableEl *act = state->errActionTable.data + i;
358 if ( act->transferPoint == transferPoint ) {
359 /* Transfer the error action and remove it. */
360 setErrorAction( state, act->ordering, act->action );
361 if ( ! state->isFinState() )
362 state->eofActionTable.setAction( act->ordering, act->action );
363 state->errActionTable.vremove( i );
366 /* Not transfering and deleting, skip over the item. */
372 /* Set error actions in the start state. */
373 void FsmAp::startErrorAction( int ordering, Action *action, int transferPoint )
375 /* Make sure the start state has no other entry points. */
378 /* Add the actions. */
379 startState->errActionTable.setAction( ordering, action, transferPoint );
382 /* Set error actions in all states where there is a transition out. */
383 void FsmAp::allErrorAction( int ordering, Action *action, int transferPoint )
385 /* Insert actions in the error action table of all states. */
386 for ( StateList::Iter state = stateList; state.lte(); state++ )
387 state->errActionTable.setAction( ordering, action, transferPoint );
390 /* Set error actions in final states. */
391 void FsmAp::finalErrorAction( int ordering, Action *action, int transferPoint )
393 /* Add the action to the error table of final states. */
394 for ( StateSet::Iter state = finStateSet; state.lte(); state++ )
395 (*state)->errActionTable.setAction( ordering, action, transferPoint );
398 void FsmAp::notStartErrorAction( int ordering, Action *action, int transferPoint )
400 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
401 if ( state != startState )
402 state->errActionTable.setAction( ordering, action, transferPoint );
406 void FsmAp::notFinalErrorAction( int ordering, Action *action, int transferPoint )
408 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
409 if ( ! state->isFinState() )
410 state->errActionTable.setAction( ordering, action, transferPoint );
414 /* Set error actions in the states that have transitions into a final state. */
415 void FsmAp::middleErrorAction( int ordering, Action *action, int transferPoint )
417 /* Isolate the start state in case it is reachable from in inside the
418 * machine, in which case we don't want it set. */
419 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
420 if ( state != startState && ! state->isFinState() )
421 state->errActionTable.setAction( ordering, action, transferPoint );
425 /* Set EOF actions in the start state. */
426 void FsmAp::startEOFAction( int ordering, Action *action )
428 /* Make sure the start state has no other entry points. */
431 /* Add the actions. */
432 startState->eofActionTable.setAction( ordering, action );
435 /* Set EOF actions in all states where there is a transition out. */
436 void FsmAp::allEOFAction( int ordering, Action *action )
438 /* Insert actions in the EOF action table of all states. */
439 for ( StateList::Iter state = stateList; state.lte(); state++ )
440 state->eofActionTable.setAction( ordering, action );
443 /* Set EOF actions in final states. */
444 void FsmAp::finalEOFAction( int ordering, Action *action )
446 /* Add the action to the error table of final states. */
447 for ( StateSet::Iter state = finStateSet; state.lte(); state++ )
448 (*state)->eofActionTable.setAction( ordering, action );
451 void FsmAp::notStartEOFAction( int ordering, Action *action )
453 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
454 if ( state != startState )
455 state->eofActionTable.setAction( ordering, action );
459 void FsmAp::notFinalEOFAction( int ordering, Action *action )
461 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
462 if ( ! state->isFinState() )
463 state->eofActionTable.setAction( ordering, action );
467 /* Set EOF actions in the states that have transitions into a final state. */
468 void FsmAp::middleEOFAction( int ordering, Action *action )
470 /* Set the actions in all states that are not the start state and not final. */
471 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
472 if ( state != startState && ! state->isFinState() )
473 state->eofActionTable.setAction( ordering, action );
478 * Set To State Actions.
481 /* Set to state actions in the start state. */
482 void FsmAp::startToStateAction( int ordering, Action *action )
484 /* Make sure the start state has no other entry points. */
486 startState->toStateActionTable.setAction( ordering, action );
489 /* Set to state actions in all states. */
490 void FsmAp::allToStateAction( int ordering, Action *action )
492 /* Insert the action on all states. */
493 for ( StateList::Iter state = stateList; state.lte(); state++ )
494 state->toStateActionTable.setAction( ordering, action );
497 /* Set to state actions in final states. */
498 void FsmAp::finalToStateAction( int ordering, Action *action )
500 /* Add the action to the error table of final states. */
501 for ( StateSet::Iter state = finStateSet; state.lte(); state++ )
502 (*state)->toStateActionTable.setAction( ordering, action );
505 void FsmAp::notStartToStateAction( int ordering, Action *action )
507 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
508 if ( state != startState )
509 state->toStateActionTable.setAction( ordering, action );
513 void FsmAp::notFinalToStateAction( int ordering, Action *action )
515 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
516 if ( ! state->isFinState() )
517 state->toStateActionTable.setAction( ordering, action );
521 /* Set to state actions in states that are not final and not the start state. */
522 void FsmAp::middleToStateAction( int ordering, Action *action )
524 /* Set the action in all states that are not the start state and not final. */
525 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
526 if ( state != startState && ! state->isFinState() )
527 state->toStateActionTable.setAction( ordering, action );
532 * Set From State Actions.
535 void FsmAp::startFromStateAction( int ordering, Action *action )
537 /* Make sure the start state has no other entry points. */
539 startState->fromStateActionTable.setAction( ordering, action );
542 void FsmAp::allFromStateAction( int ordering, Action *action )
544 /* Insert the action on all states. */
545 for ( StateList::Iter state = stateList; state.lte(); state++ )
546 state->fromStateActionTable.setAction( ordering, action );
549 void FsmAp::finalFromStateAction( int ordering, Action *action )
551 /* Add the action to the error table of final states. */
552 for ( StateSet::Iter state = finStateSet; state.lte(); state++ )
553 (*state)->fromStateActionTable.setAction( ordering, action );
556 void FsmAp::notStartFromStateAction( int ordering, Action *action )
558 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
559 if ( state != startState )
560 state->fromStateActionTable.setAction( ordering, action );
564 void FsmAp::notFinalFromStateAction( int ordering, Action *action )
566 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
567 if ( ! state->isFinState() )
568 state->fromStateActionTable.setAction( ordering, action );
572 void FsmAp::middleFromStateAction( int ordering, Action *action )
574 /* Set the action in all states that are not the start state and not final. */
575 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
576 if ( state != startState && ! state->isFinState() )
577 state->fromStateActionTable.setAction( ordering, action );
581 /* Shift the function ordering of the start transitions to start
582 * at fromOrder and increase in units of 1. Useful before staring.
583 * Returns the maximum number of order numbers used. */
584 int FsmAp::shiftStartActionOrder( int fromOrder )
588 /* Walk the start state's transitions, shifting function ordering. */
589 for ( TransList::Iter trans = startState->outList; trans.lte(); trans++ ) {
590 /* Walk the function data for the transition and set the keys to
591 * increasing values starting at fromOrder. */
592 int curFromOrder = fromOrder;
593 ActionTable::Iter action = trans->actionTable;
594 for ( ; action.lte(); action++ )
595 action->key = curFromOrder++;
597 /* Keep track of the max number of orders used. */
598 if ( curFromOrder - fromOrder > maxUsed )
599 maxUsed = curFromOrder - fromOrder;
605 /* Remove all priorities. */
606 void FsmAp::clearAllPriorities()
608 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
609 /* Clear out priority data. */
610 state->outPriorTable.empty();
612 /* Clear transition data from the out transitions. */
613 for ( TransList::Iter trans = state->outList; trans.lte(); trans++ )
614 trans->priorTable.empty();
618 /* Zeros out the function ordering keys. This may be called before minimization
619 * when it is known that no more fsm operations are going to be done. This
620 * will achieve greater reduction as states will not be separated on the basis
621 * of function ordering. */
622 void FsmAp::nullActionKeys( )
624 /* For each state... */
625 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
626 /* Walk the transitions for the state. */
627 for ( TransList::Iter trans = state->outList; trans.lte(); trans++ ) {
628 /* Walk the action table for the transition. */
629 for ( ActionTable::Iter action = trans->actionTable;
630 action.lte(); action++ )
633 /* Walk the action table for the transition. */
634 for ( LmActionTable::Iter action = trans->lmActionTable;
635 action.lte(); action++ )
639 /* Null the action keys of the to state action table. */
640 for ( ActionTable::Iter action = state->toStateActionTable;
641 action.lte(); action++ )
644 /* Null the action keys of the from state action table. */
645 for ( ActionTable::Iter action = state->fromStateActionTable;
646 action.lte(); action++ )
649 /* Null the action keys of the out transtions. */
650 for ( ActionTable::Iter action = state->outActionTable;
651 action.lte(); action++ )
654 /* Null the action keys of the error action table. */
655 for ( ErrActionTable::Iter action = state->errActionTable;
656 action.lte(); action++ )
657 action->ordering = 0;
659 /* Null the action keys eof action table. */
660 for ( ActionTable::Iter action = state->eofActionTable;
661 action.lte(); action++ )
666 /* Walk the list of states and verify that non final states do not have out
667 * data, that all stateBits are cleared, and that there are no states with
668 * zero foreign in transitions. */
669 void FsmAp::verifyStates()
671 for ( StateList::Iter state = stateList; state.lte(); state++ ) {
672 /* Non final states should not have leaving data. */
673 if ( ! (state->stateBits & STB_ISFINAL) ) {
674 assert( state->outActionTable.length() == 0 );
675 assert( state->outCondSet.length() == 0 );
676 assert( state->outPriorTable.length() == 0 );
679 /* Data used in algorithms should be cleared. */
680 assert( (state->stateBits & STB_BOTH) == 0 );
681 assert( state->foreignInTrans > 0 );
685 /* Compare two transitions according to their relative priority. Since the
686 * base transition has no priority associated with it, the default is to
688 int FsmAp::comparePrior( const PriorTable &priorTable1, const PriorTable &priorTable2 )
690 /* Looking for differing priorities on same keys. Need to concurrently
691 * scan the priority lists. */
692 PriorTable::Iter pd1 = priorTable1;
693 PriorTable::Iter pd2 = priorTable2;
694 while ( pd1.lte() && pd2.lte() ) {
696 if ( pd1->desc->key < pd2->desc->key )
698 else if ( pd1->desc->key > pd2->desc->key )
700 /* Keys are the same, check priorities. */
701 else if ( pd1->desc->priority < pd2->desc->priority )
703 else if ( pd1->desc->priority > pd2->desc->priority )
706 /* Keys and priorities are equal, advance both. */
712 /* No differing priorities on the same key. */
716 /* Compares two transitions according to priority and functions. Pointers
717 * should not be null. Does not consider to state or from state. Compare two
718 * transitions according to the data contained in the transitions. Data means
719 * any properties added to user transitions that may differentiate them. Since
720 * the base transition has no data, the default is to return equal. */
721 int FsmAp::compareTransData( TransAp *trans1, TransAp *trans2 )
723 /* Compare the prior table. */
724 int cmpRes = CmpPriorTable::compare( trans1->priorTable,
725 trans2->priorTable );
729 /* Compare longest match action tables. */
730 cmpRes = CmpLmActionTable::compare(trans1->lmActionTable,
731 trans2->lmActionTable);
735 /* Compare action tables. */
736 return CmpActionTable::compare(trans1->actionTable,
737 trans2->actionTable);
740 /* Callback invoked when another trans (or possibly this) is added into this
741 * transition during the merging process. Draw in any properties of srcTrans
742 * into this transition. AddInTrans is called when a new transitions is made
743 * that will be a duplicate of another transition or a combination of several
744 * other transitions. AddInTrans will be called for each transition that the
745 * new transition is to represent. */
746 void FsmAp::addInTrans( TransAp *destTrans, TransAp *srcTrans )
748 /* Protect against adding in from ourselves. */
749 if ( srcTrans == destTrans ) {
750 /* Adding in ourselves, need to make a copy of the source transitions.
751 * The priorities are not copied in as that would have no effect. */
752 destTrans->lmActionTable.setActions( LmActionTable(srcTrans->lmActionTable) );
753 destTrans->actionTable.setActions( ActionTable(srcTrans->actionTable) );
756 /* Not a copy of ourself, get the functions and priorities. */
757 destTrans->lmActionTable.setActions( srcTrans->lmActionTable );
758 destTrans->actionTable.setActions( srcTrans->actionTable );
759 destTrans->priorTable.setPriors( srcTrans->priorTable );
763 /* Compare the properties of states that are embedded by users. Compares out
764 * priorities, out transitions, to, from, out, error and eof action tables. */
765 int FsmAp::compareStateData( const StateAp *state1, const StateAp *state2 )
767 /* Compare the out priority table. */
768 int cmpRes = CmpPriorTable::
769 compare( state1->outPriorTable, state2->outPriorTable );
773 /* Test to state action tables. */
774 cmpRes = CmpActionTable::compare( state1->toStateActionTable,
775 state2->toStateActionTable );
779 /* Test from state action tables. */
780 cmpRes = CmpActionTable::compare( state1->fromStateActionTable,
781 state2->fromStateActionTable );
785 /* Test out action tables. */
786 cmpRes = CmpActionTable::compare( state1->outActionTable,
787 state2->outActionTable );
791 /* Test out condition sets. */
792 cmpRes = CmpOutCondSet::compare( state1->outCondSet,
793 state2->outCondSet );
797 /* Test out error action tables. */
798 cmpRes = CmpErrActionTable::compare( state1->errActionTable,
799 state2->errActionTable );
803 /* Test eof action tables. */
804 return CmpActionTable::compare( state1->eofActionTable,
805 state2->eofActionTable );
809 /* Invoked when a state looses its final state status and the leaving
810 * transition embedding data should be deleted. */
811 void FsmAp::clearOutData( StateAp *state )
813 /* Kill the out actions and priorities. */
814 state->outActionTable.empty();
815 state->outCondSet.empty();
816 state->outPriorTable.empty();
819 bool FsmAp::hasOutData( StateAp *state )
821 return ( state->outActionTable.length() > 0 ||
822 state->outCondSet.length() > 0 ||
823 state->outPriorTable.length() > 0 );
827 * Setting Conditions.
831 void logNewExpansion( Expansion *exp );
832 void logCondSpace( CondSpace *condSpace );
834 CondSpace *FsmAp::addCondSpace( const CondSet &condSet )
836 CondSpace *condSpace = condData->condSpaceMap.find( condSet );
837 if ( condSpace == 0 ) {
838 /* Do we have enough keyspace left? */
839 Size availableSpace = condData->lastCondKey.availableSpace();
840 Size neededSpace = (1 << condSet.length() ) * keyOps->alphSize();
841 if ( neededSpace > availableSpace )
842 throw FsmConstructFail( FsmConstructFail::CondNoKeySpace );
844 Key baseKey = condData->lastCondKey;
846 condData->lastCondKey += (1 << condSet.length() ) * keyOps->alphSize();
848 condSpace = new CondSpace( condSet );
849 condSpace->baseKey = baseKey;
850 condData->condSpaceMap.insert( condSpace );
853 cerr << "adding new condition space" << endl;
854 cerr << " condition set: ";
855 logCondSpace( condSpace );
857 cerr << " baseKey: " << baseKey.getVal() << endl;
863 void FsmAp::startFsmCondition( Action *condAction, bool sense )
865 /* Make sure the start state has no other entry points. */
867 embedCondition( startState, condAction, sense );
870 void FsmAp::allTransCondition( Action *condAction, bool sense )
872 for ( StateList::Iter state = stateList; state.lte(); state++ )
873 embedCondition( state, condAction, sense );
876 void FsmAp::leaveFsmCondition( Action *condAction, bool sense )
878 for ( StateSet::Iter state = finStateSet; state.lte(); state++ )
879 (*state)->outCondSet.insert( OutCond( condAction, sense ) );