ragel/xmlcodegen.cpp

   1 /*
   2  *  Copyright 2005-2007 Adrian Thurston <thurston@complang.org>
   3  */
   4
   5 /*  This file is part of Ragel.
   6  *
   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.
  11  *
  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.
  16  *
  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
  20  */
  21
  22
  23 #include "ragel.h"
  24 #include "xmlcodegen.h"
  25 #include "xmlparse.h"
  26 #include "parsedata.h"
  27 #include "fsmgraph.h"
  28 #include "gendata.h"
  29 #include <string.h>
  30
  31 using namespace std;
  32
  33 XMLCodeGen::XMLCodeGen( char *fsmName, ParseData *pd, FsmAp *fsm,
  34                 std::ostream &out, XmlParser &xmlParser )
  35 :
  36         fsmName(fsmName),
  37         pd(pd),
  38         fsm(fsm),
  39         out(out),
  40         xmlParser(xmlParser),
  41         nextActionTableId(0)
  42 {
  43 }
  44
  45
  46 void XMLCodeGen::writeActionList()
  47 {
  48         /* Determine which actions to write. */
  49         int nextActionId = 0;
  50         for ( ActionList::Iter act = pd->actionList; act.lte(); act++ ) {
  51                 if ( act->numRefs() > 0 || act->numCondRefs > 0 )
  52                         act->actionId = nextActionId++;
  53         }
  54
  55         /* Write the list. */
  56         out << "    <action_list length=\"" << nextActionId << "\">\n";
  57         for ( ActionList::Iter act = pd->actionList; act.lte(); act++ ) {
  58                 if ( act->actionId >= 0 )
  59                         writeAction( act );
  60         }
  61         out << "    </action_list>\n";
  62 }
  63
  64 void XMLCodeGen::writeActionTableList()
  65 {
  66         /* Must first order the action tables based on their id. */
  67         int numTables = nextActionTableId;
  68         RedActionTable **tables = new RedActionTable*[numTables];
  69         for ( ActionTableMap::Iter at = actionTableMap; at.lte(); at++ )
  70                 tables[at->id] = at;
  71
  72         out << "    <action_table_list length=\"" << numTables << "\">\n";
  73         for ( int t = 0; t < numTables; t++ ) {
  74                 out << "      <action_table id=\"" << t << "\" length=\"" <<
  75                                 tables[t]->key.length() << "\">";
  76                 for ( ActionTable::Iter atel = tables[t]->key; atel.lte(); atel++ ) {
  77                         out << atel->value->actionId;
  78                         if ( ! atel.last() )
  79                                 out << " ";
  80                 }
  81                 out << "</action_table>\n";
  82         }
  83         out << "    </action_table_list>\n";
  84
  85         delete[] tables;
  86 }
  87
  88 void XMLCodeGen::reduceActionTables()
  89 {
  90         /* Reduce the actions tables to a set. */
  91         for ( StateList::Iter st = fsm->stateList; st.lte(); st++ ) {
  92                 RedActionTable *actionTable = 0;
  93
  94                 /* Reduce To State Actions. */
  95                 if ( st->toStateActionTable.length() > 0 ) {
  96                         if ( actionTableMap.insert( st->toStateActionTable, &actionTable ) )
  97                                 actionTable->id = nextActionTableId++;
  98                 }
  99
 100                 /* Reduce From State Actions. */
 101                 if ( st->fromStateActionTable.length() > 0 ) {
 102                         if ( actionTableMap.insert( st->fromStateActionTable, &actionTable ) )
 103                                 actionTable->id = nextActionTableId++;
 104                 }
 105
 106                 /* Reduce EOF actions. */
 107                 if ( st->eofActionTable.length() > 0 ) {
 108                         if ( actionTableMap.insert( st->eofActionTable, &actionTable ) )
 109                                 actionTable->id = nextActionTableId++;
 110                 }
 111
 112                 /* Loop the transitions and reduce their actions. */
 113                 for ( TransList::Iter trans = st->outList; trans.lte(); trans++ ) {
 114                         if ( trans->actionTable.length() > 0 ) {
 115                                 if ( actionTableMap.insert( trans->actionTable, &actionTable ) )
 116                                         actionTable->id = nextActionTableId++;
 117                         }
 118                 }
 119         }
 120 }
 121
 122 void XMLCodeGen::appendTrans( TransListVect &outList, Key lowKey,
 123                 Key highKey, TransAp *trans )
 124 {
 125         if ( trans->toState != 0 || trans->actionTable.length() > 0 )
 126                 outList.append( TransEl( lowKey, highKey, trans ) );
 127 }
 128
 129 void XMLCodeGen::writeKey( Key key )
 130 {
 131         if ( keyOps->isSigned )
 132                 out << key.getVal();
 133         else
 134                 out << (unsigned long) key.getVal();
 135 }
 136
 137 void XMLCodeGen::writeTrans( Key lowKey, Key highKey, TransAp *trans )
 138 {
 139         /* First reduce the action. */
 140         RedActionTable *actionTable = 0;
 141         if ( trans->actionTable.length() > 0 )
 142                 actionTable = actionTableMap.find( trans->actionTable );
 143
 144         /* Write the transition. */
 145         out << "        <t>";
 146         writeKey( lowKey );
 147         out << " ";
 148         writeKey( highKey );
 149
 150         if ( trans->toState != 0 )
 151                 out << " " << trans->toState->alg.stateNum;
 152         else
 153                 out << " x";
 154
 155         if ( actionTable != 0 )
 156                 out << " " << actionTable->id;
 157         else
 158                 out << " x";
 159         out << "</t>\n";
 160 }
 161
 162 void XMLCodeGen::writeTransList( StateAp *state )
 163 {
 164         TransListVect outList;
 165
 166         /* If there is only are no ranges the task is simple. */
 167         if ( state->outList.length() > 0 ) {
 168                 /* Loop each source range. */
 169                 for ( TransList::Iter trans = state->outList; trans.lte(); trans++ ) {
 170                         /* Reduce the transition. If it reduced to anything then add it. */
 171                         appendTrans( outList, trans->lowKey, trans->highKey, trans );
 172                 }
 173         }
 174
 175         out << "      <trans_list length=\"" << outList.length() << "\">\n";
 176         for ( TransListVect::Iter tvi = outList; tvi.lte(); tvi++ )
 177                 writeTrans( tvi->lowKey, tvi->highKey, tvi->value );
 178         out << "      </trans_list>\n";
 179 }
 180
 181 void XMLCodeGen::writeEofTrans( StateAp *state )
 182 {
 183         RedActionTable *eofActions = 0;
 184         if ( state->eofActionTable.length() > 0 )
 185                 eofActions = actionTableMap.find( state->eofActionTable );
 186
 187         /* The <eof_t> is used when there is an eof target, otherwise the eof
 188          * action goes into state actions. */
 189         if ( state->eofTarget != 0 ) {
 190                 out << "      <eof_t>" << state->eofTarget->alg.stateNum;
 191
 192                 if ( eofActions != 0 )
 193                         out << " " << eofActions->id;
 194                 else
 195                         out << " x";
 196
 197                 out << "</eof_t>" << endl;
 198         }
 199 }
 200
 201 void XMLCodeGen::writeText( InlineItem *item )
 202 {
 203         if ( item->prev == 0 || item->prev->type != InlineItem::Text )
 204                 out << "<text>";
 205         xmlEscapeHost( out, item->data, strlen(item->data) );
 206         if ( item->next == 0 || item->next->type != InlineItem::Text )
 207                 out << "</text>";
 208 }
 209
 210 void XMLCodeGen::writeGoto( InlineItem *item )
 211 {
 212         if ( pd->generatingSectionSubset )
 213                 out << "<goto>-1</goto>";
 214         else {
 215                 EntryMapEl *targ = fsm->entryPoints.find( item->nameTarg->id );
 216                 out << "<goto>" << targ->value->alg.stateNum << "</goto>";
 217         }
 218 }
 219
 220 void XMLCodeGen::writeCall( InlineItem *item )
 221 {
 222         if ( pd->generatingSectionSubset )
 223                 out << "<call>-1</call>";
 224         else {
 225                 EntryMapEl *targ = fsm->entryPoints.find( item->nameTarg->id );
 226                 out << "<call>" << targ->value->alg.stateNum << "</call>";
 227         }
 228 }
 229
 230 void XMLCodeGen::writeNext( InlineItem *item )
 231 {
 232         if ( pd->generatingSectionSubset )
 233                 out << "<next>-1</next>";
 234         else {
 235                 EntryMapEl *targ = fsm->entryPoints.find( item->nameTarg->id );
 236                 out << "<next>" << targ->value->alg.stateNum << "</next>";
 237         }
 238 }
 239
 240 void XMLCodeGen::writeGotoExpr( InlineItem *item )
 241 {
 242         out << "<goto_expr>";
 243         writeInlineList( item->children );
 244         out << "</goto_expr>";
 245 }
 246
 247 void XMLCodeGen::writeCallExpr( InlineItem *item )
 248 {
 249         out << "<call_expr>";
 250         writeInlineList( item->children );
 251         out << "</call_expr>";
 252 }
 253
 254 void XMLCodeGen::writeNextExpr( InlineItem *item )
 255 {
 256         out << "<next_expr>";
 257         writeInlineList( item->children );
 258         out << "</next_expr>";
 259 }
 260
 261 void XMLCodeGen::writeEntry( InlineItem *item )
 262 {
 263         if ( pd->generatingSectionSubset )
 264                 out << "<entry>-1</entry>";
 265         else {
 266                 EntryMapEl *targ = fsm->entryPoints.find( item->nameTarg->id );
 267                 out << "<entry>" << targ->value->alg.stateNum << "</entry>";
 268         }
 269 }
 270
 271 void XMLCodeGen::writeActionExec( InlineItem *item )
 272 {
 273         out << "<exec>";
 274         writeInlineList( item->children );
 275         out << "</exec>";
 276 }
 277
 278 void XMLCodeGen::writeLmOnLast( InlineItem *item )
 279 {
 280         out << "<set_tokend>1</set_tokend>";
 281
 282         if ( item->longestMatchPart->action != 0 ) {
 283                 out << "<sub_action>";
 284                 writeInlineList( item->longestMatchPart->action->inlineList );
 285                 out << "</sub_action>";
 286         }
 287 }
 288
 289 void XMLCodeGen::writeLmOnNext( InlineItem *item )
 290 {
 291         out << "<set_tokend>0</set_tokend>";
 292         out << "<hold></hold>";
 293
 294         if ( item->longestMatchPart->action != 0 ) {
 295                 out << "<sub_action>";
 296                 writeInlineList( item->longestMatchPart->action->inlineList );
 297                 out << "</sub_action>";
 298         }
 299 }
 300
 301 void XMLCodeGen::writeLmOnLagBehind( InlineItem *item )
 302 {
 303         out << "<exec><get_tokend></get_tokend></exec>";
 304
 305         if ( item->longestMatchPart->action != 0 ) {
 306                 out << "<sub_action>";
 307                 writeInlineList( item->longestMatchPart->action->inlineList );
 308                 out << "</sub_action>";
 309         }
 310 }
 311
 312 void XMLCodeGen::writeLmSwitch( InlineItem *item )
 313 {
 314         LongestMatch *longestMatch = item->longestMatch;
 315         out << "<lm_switch>\n";
 316
 317         /* We can't put the <exec> here because we may need to handle the error
 318          * case and in that case p should not be changed. Instead use a default
 319          * label in the switch to adjust p when user actions are not set. An id of
 320          * -1 indicates the default. */
 321
 322         if ( longestMatch->lmSwitchHandlesError ) {
 323                 /* If the switch handles error then we should have also forced the
 324                  * error state. */
 325                 assert( fsm->errState != 0 );
 326
 327                 out << "        <sub_action id=\"0\">";
 328                 out << "<goto>" << fsm->errState->alg.stateNum << "</goto>";
 329                 out << "</sub_action>\n";
 330         }
 331
 332         bool needDefault = false;
 333         for ( LmPartList::Iter lmi = *longestMatch->longestMatchList; lmi.lte(); lmi++ ) {
 334                 if ( lmi->inLmSelect ) {
 335                         if ( lmi->action == 0 )
 336                                 needDefault = true;
 337                         else {
 338                                 /* Open the action. Write it with the context that sets up _p
 339                                  * when doing control flow changes from inside the machine. */
 340                                 out << "        <sub_action id=\"" << lmi->longestMatchId << "\">";
 341                                 out << "<exec><get_tokend></get_tokend></exec>";
 342                                 writeInlineList( lmi->action->inlineList );
 343                                 out << "</sub_action>\n";
 344                         }
 345                 }
 346         }
 347
 348         if ( needDefault ) {
 349                 out << "        <sub_action id=\"-1\"><exec><get_tokend>"
 350                                 "</get_tokend></exec></sub_action>\n";
 351         }
 352
 353         out << "    </lm_switch>";
 354 }
 355
 356 void XMLCodeGen::writeInlineList( InlineList *inlineList )
 357 {
 358         for ( InlineList::Iter item = *inlineList; item.lte(); item++ ) {
 359                 switch ( item->type ) {
 360                 case InlineItem::Text:
 361                         writeText( item );
 362                         break;
 363                 case InlineItem::Goto:
 364                         writeGoto( item );
 365                         break;
 366                 case InlineItem::GotoExpr:
 367                         writeGotoExpr( item );
 368                         break;
 369                 case InlineItem::Call:
 370                         writeCall( item );
 371                         break;
 372                 case InlineItem::CallExpr:
 373                         writeCallExpr( item );
 374                         break;
 375                 case InlineItem::Next:
 376                         writeNext( item );
 377                         break;
 378                 case InlineItem::NextExpr:
 379                         writeNextExpr( item );
 380                         break;
 381                 case InlineItem::Break:
 382                         out << "<break></break>";
 383                         break;
 384                 case InlineItem::Ret:
 385                         out << "<ret></ret>";
 386                         break;
 387                 case InlineItem::PChar:
 388                         out << "<pchar></pchar>";
 389                         break;
 390                 case InlineItem::Char:
 391                         out << "<char></char>";
 392                         break;
 393                 case InlineItem::Curs:
 394                         out << "<curs></curs>";
 395                         break;
 396                 case InlineItem::Targs:
 397                         out << "<targs></targs>";
 398                         break;
 399                 case InlineItem::Entry:
 400                         writeEntry( item );
 401                         break;
 402
 403                 case InlineItem::Hold:
 404                         out << "<hold></hold>";
 405                         break;
 406                 case InlineItem::Exec:
 407                         writeActionExec( item );
 408                         break;
 409
 410                 case InlineItem::LmSetActId:
 411                         out << "<set_act>" <<
 412                                         item->longestMatchPart->longestMatchId <<
 413                                         "</set_act>";
 414                         break;
 415                 case InlineItem::LmSetTokEnd:
 416                         out << "<set_tokend>1</set_tokend>";
 417                         break;
 418
 419                 case InlineItem::LmOnLast:
 420                         writeLmOnLast( item );
 421                         break;
 422                 case InlineItem::LmOnNext:
 423                         writeLmOnNext( item );
 424                         break;
 425                 case InlineItem::LmOnLagBehind:
 426                         writeLmOnLagBehind( item );
 427                         break;
 428                 case InlineItem::LmSwitch:
 429                         writeLmSwitch( item );
 430                         break;
 431
 432                 case InlineItem::LmInitAct:
 433                         out << "<init_act></init_act>";
 434                         break;
 435                 case InlineItem::LmInitTokStart:
 436                         out << "<init_tokstart></init_tokstart>";
 437                         break;
 438                 case InlineItem::LmSetTokStart:
 439                         out << "<set_tokstart></set_tokstart>";
 440                         break;
 441                 }
 442         }
 443 }
 444
 445 void XMLCodeGen::makeKey( GenInlineList *outList, Key key )
 446 {
 447 }
 448
 449 void XMLCodeGen::makeText( GenInlineList *outList, InlineItem *item )
 450 {
 451 }
 452
 453 void XMLCodeGen::makeGoto( GenInlineList *outList, InlineItem *item )
 454 {
 455 }
 456
 457 void XMLCodeGen::makeGotoExpr( GenInlineList *outList, InlineItem *item )
 458 {
 459 }
 460
 461 void XMLCodeGen::makeCall( GenInlineList *outList, InlineItem *item )
 462 {
 463 }
 464
 465 void XMLCodeGen::makeCallExpr( GenInlineList *outList, InlineItem *item )
 466 {
 467 }
 468
 469 void XMLCodeGen::makeNext( GenInlineList *outList, InlineItem *item )
 470 {
 471 }
 472
 473 void XMLCodeGen::makeNextExpr( GenInlineList *outList, InlineItem *item )
 474 {
 475 }
 476
 477 void XMLCodeGen::makeEntry( GenInlineList *outList, InlineItem *item )
 478 {
 479 }
 480
 481 void XMLCodeGen::makeLmSetActId( GenInlineList *outList, InlineItem *item )
 482 {
 483 }
 484
 485 void XMLCodeGen::makeLmOnLast( GenInlineList *outList, InlineItem *item )
 486 {
 487 }
 488
 489 void XMLCodeGen::makeLmOnNext( GenInlineList *outList, InlineItem *item )
 490 {
 491 }
 492
 493 void XMLCodeGen::makeLmOnLagBehind( GenInlineList *outList, InlineItem *item )
 494 {
 495 }
 496
 497 void XMLCodeGen::makeActionExec( GenInlineList *outList, InlineItem *item )
 498 {
 499 }
 500
 501 void XMLCodeGen::makeLmSwitch( GenInlineList *outList, InlineItem *item )
 502 {
 503 }
 504
 505 void XMLCodeGen::makeGenInlineList( GenInlineList *outList, InlineList *inList )
 506 {
 507         for ( InlineList::Iter item = *inList; item.lte(); item++ ) {
 508                 switch ( item->type ) {
 509                 case InlineItem::Text:
 510                         makeText( outList, item );
 511                         break;
 512                 case InlineItem::Goto:
 513                         makeGoto( outList, item );
 514                         break;
 515                 case InlineItem::GotoExpr:
 516                         makeGotoExpr( outList, item );
 517                         break;
 518                 case InlineItem::Call:
 519                         makeCall( outList, item );
 520                         break;
 521                 case InlineItem::CallExpr:
 522                         makeCallExpr( outList, item );
 523                         break;
 524                 case InlineItem::Next:
 525                         makeNext( outList, item );
 526                         break;
 527                 case InlineItem::NextExpr:
 528                         makeNextExpr( outList, item );
 529                         break;
 530                 case InlineItem::Break:
 531                         out << "<break></break>";
 532                         break;
 533                 case InlineItem::Ret:
 534                         out << "<ret></ret>";
 535                         break;
 536                 case InlineItem::PChar:
 537                         out << "<pchar></pchar>";
 538                         break;
 539                 case InlineItem::Char:
 540                         out << "<char></char>";
 541                         break;
 542                 case InlineItem::Curs:
 543                         out << "<curs></curs>";
 544                         break;
 545                 case InlineItem::Targs:
 546                         out << "<targs></targs>";
 547                         break;
 548                 case InlineItem::Entry:
 549                         makeEntry( outList, item );
 550                         break;
 551
 552                 case InlineItem::Hold:
 553                         out << "<hold></hold>";
 554                         break;
 555                 case InlineItem::Exec:
 556                         makeActionExec( outList, item );
 557                         break;
 558
 559                 case InlineItem::LmSetActId:
 560                         out << "<set_act>" <<
 561                                         item->longestMatchPart->longestMatchId <<
 562                                         "</set_act>";
 563                         break;
 564                 case InlineItem::LmSetTokEnd:
 565                         out << "<set_tokend>1</set_tokend>";
 566                         break;
 567
 568                 case InlineItem::LmOnLast:
 569                         makeLmOnLast( outList, item );
 570                         break;
 571                 case InlineItem::LmOnNext:
 572                         makeLmOnNext( outList, item );
 573                         break;
 574                 case InlineItem::LmOnLagBehind:
 575                         makeLmOnLagBehind( outList, item );
 576                         break;
 577                 case InlineItem::LmSwitch:
 578                         makeLmSwitch( outList, item );
 579                         break;
 580
 581                 case InlineItem::LmInitAct:
 582                         out << "<init_act></init_act>";
 583                         break;
 584                 case InlineItem::LmInitTokStart:
 585                         out << "<init_tokstart></init_tokstart>";
 586                         break;
 587                 case InlineItem::LmSetTokStart:
 588                         out << "<set_tokstart></set_tokstart>";
 589                         break;
 590                 }
 591         }
 592 }
 593
 594
 595 void XMLCodeGen::writeAction( Action *action )
 596 {
 597         out << "      <action id=\"" << action->actionId << "\"";
 598         if ( action->name != 0 )
 599                 out << " name=\"" << action->name << "\"";
 600         out << " line=\"" << action->loc.line << "\" col=\"" << action->loc.col << "\">";
 601         writeInlineList( action->inlineList );
 602         out << "</action>\n";
 603 }
 604
 605 void xmlEscapeHost( std::ostream &out, char *data, long len )
 606 {
 607         char *end = data + len;
 608         while ( data != end ) {
 609                 switch ( *data ) {
 610                 case '<': out << "&lt;"; break;
 611                 case '>': out << "&gt;"; break;
 612                 case '&': out << "&amp;"; break;
 613                 default: out << *data; break;
 614                 }
 615                 data += 1;
 616         }
 617 }
 618
 619 void XMLCodeGen::writeStateActions( StateAp *state )
 620 {
 621         RedActionTable *toStateActions = 0;
 622         if ( state->toStateActionTable.length() > 0 )
 623                 toStateActions = actionTableMap.find( state->toStateActionTable );
 624
 625         RedActionTable *fromStateActions = 0;
 626         if ( state->fromStateActionTable.length() > 0 )
 627                 fromStateActions = actionTableMap.find( state->fromStateActionTable );
 628
 629         /* EOF actions go out here only if the state has no eof target. If it has
 630          * an eof target then an eof transition will be used instead. */
 631         RedActionTable *eofActions = 0;
 632         if ( state->eofTarget == 0 && state->eofActionTable.length() > 0 )
 633                 eofActions = actionTableMap.find( state->eofActionTable );
 634
 635         if ( toStateActions != 0 || fromStateActions != 0 || eofActions != 0 ) {
 636                 out << "      <state_actions>";
 637                 if ( toStateActions != 0 )
 638                         out << toStateActions->id;
 639                 else
 640                         out << "x";
 641
 642                 if ( fromStateActions != 0 )
 643                         out << " " << fromStateActions->id;
 644                 else
 645                         out << " x";
 646
 647                 if ( eofActions != 0 )
 648                         out << " " << eofActions->id;
 649                 else
 650                         out << " x";
 651
 652                 out << "</state_actions>\n";
 653         }
 654 }
 655
 656 void XMLCodeGen::writeStateConditions( StateAp *state )
 657 {
 658         if ( state->stateCondList.length() > 0 ) {
 659                 out << "      <cond_list length=\"" << state->stateCondList.length() << "\">\n";
 660                 for ( StateCondList::Iter scdi = state->stateCondList; scdi.lte(); scdi++ ) {
 661                         out << "        <c>";
 662                         writeKey( scdi->lowKey );
 663                         out << " ";
 664                         writeKey( scdi->highKey );
 665                         out << " ";
 666                         out << scdi->condSpace->condSpaceId;
 667                         out << "</c>\n";
 668                 }
 669                 out << "      </cond_list>\n";
 670         }
 671 }
 672
 673 void XMLCodeGen::writeStateList()
 674 {
 675         /* Write the list of states. */
 676         out << "    <state_list length=\"" << fsm->stateList.length() << "\">\n";
 677         for ( StateList::Iter st = fsm->stateList; st.lte(); st++ ) {
 678                 out << "      <state id=\"" << st->alg.stateNum << "\"";
 679                 if ( st->isFinState() )
 680                         out << " final=\"t\"";
 681                 out << ">\n";
 682
 683                 writeStateActions( st );
 684                 writeEofTrans( st );
 685                 writeStateConditions( st );
 686                 writeTransList( st );
 687
 688                 out << "      </state>\n";
 689
 690                 if ( !st.last() )
 691                         out << "\n";
 692         }
 693         out << "    </state_list>\n";
 694 }
 695
 696 bool XMLCodeGen::writeNameInst( NameInst *nameInst )
 697 {
 698         bool written = false;
 699         if ( nameInst->parent != 0 )
 700                 written = writeNameInst( nameInst->parent );
 701
 702         if ( nameInst->name != 0 ) {
 703                 if ( written )
 704                         out << '_';
 705                 out << nameInst->name;
 706                 written = true;
 707         }
 708
 709         return written;
 710 }
 711
 712 void XMLCodeGen::writeEntryPoints()
 713 {
 714         /* List of entry points other than start state. */
 715         if ( fsm->entryPoints.length() > 0 || pd->lmRequiresErrorState ) {
 716                 out << "    <entry_points";
 717                 if ( pd->lmRequiresErrorState )
 718                         out << " error=\"t\"";
 719                 out << ">\n";
 720                 for ( EntryMap::Iter en = fsm->entryPoints; en.lte(); en++ ) {
 721                         /* Get the name instantiation from nameIndex. */
 722                         NameInst *nameInst = pd->nameIndex[en->key];
 723                         StateAp *state = en->value;
 724                         out << "      <entry name=\"";
 725                         writeNameInst( nameInst );
 726                         out << "\">" << state->alg.stateNum << "</entry>\n";
 727                 }
 728                 out << "    </entry_points>\n";
 729         }
 730 }
 731
 732 void XMLCodeGen::writeMachine()
 733 {
 734         /* Open the machine. */
 735         out << "  <machine>\n";
 736
 737         /* Action tables. */
 738         reduceActionTables();
 739
 740         writeActionList();
 741         writeActionTableList();
 742         writeConditions();
 743
 744         /* Start state. */
 745         out << "    <start_state>" << fsm->startState->alg.stateNum <<
 746                         "</start_state>\n";
 747
 748         /* Error state. */
 749         if ( fsm->errState != 0 ) {
 750                 out << "    <error_state>" << fsm->errState->alg.stateNum <<
 751                         "</error_state>\n";
 752         }
 753
 754         writeEntryPoints();
 755         writeStateList();
 756
 757         out << "  </machine>\n";
 758 }
 759
 760
 761 void XMLCodeGen::writeConditions()
 762 {
 763         if ( condData->condSpaceMap.length() > 0 ) {
 764                 long nextCondSpaceId = 0;
 765                 for ( CondSpaceMap::Iter cs = condData->condSpaceMap; cs.lte(); cs++ )
 766                         cs->condSpaceId = nextCondSpaceId++;
 767
 768                 out << "    <cond_space_list length=\"" << condData->condSpaceMap.length() << "\">\n";
 769                 for ( CondSpaceMap::Iter cs = condData->condSpaceMap; cs.lte(); cs++ ) {
 770                         out << "      <cond_space id=\"" << cs->condSpaceId <<
 771                                 "\" length=\"" << cs->condSet.length() << "\">";
 772                         writeKey( cs->baseKey );
 773                         for ( CondSet::Iter csi = cs->condSet; csi.lte(); csi++ )
 774                                 out << " " << (*csi)->actionId;
 775                         out << "</cond_space>\n";
 776                 }
 777                 out << "    </cond_space_list>\n";
 778         }
 779 }
 780
 781 void XMLCodeGen::writeExports()
 782 {
 783         if ( pd->exportList.length() > 0 ) {
 784                 out << "  <exports>\n";
 785                 for ( ExportList::Iter exp = pd->exportList; exp.lte(); exp++ ) {
 786                         out << "    <ex name=\"" << exp->name << "\">";
 787                         writeKey( exp->key );
 788                         out << "</ex>\n";
 789                 }
 790                 out << "  </exports>\n";
 791         }
 792 }
 793
 794 void XMLCodeGen::writeXML()
 795 {
 796         /* Open the definition. */
 797         xmlParser.open_ragel_def( fsmName );
 798
 799         /* Alphabet type. */
 800         xmlParser.cgd->setAlphType( keyOps->alphType->internalName );
 801
 802         /* Getkey expression. */
 803         if ( pd->getKeyExpr != 0 ) {
 804                 out << "  <getkey>";
 805                 writeInlineList( pd->getKeyExpr );
 806                 out << "</getkey>\n";
 807         }
 808
 809         /* Access expression. */
 810         if ( pd->accessExpr != 0 ) {
 811                 out << "  <access>";
 812                 writeInlineList( pd->accessExpr );
 813                 out << "</access>\n";
 814         }
 815
 816         /* PrePush expression. */
 817         if ( pd->prePushExpr != 0 ) {
 818                 out << "  <prepush>";
 819                 writeInlineList( pd->prePushExpr );
 820                 out << "</prepush>\n";
 821         }
 822
 823         /* PostPop expression. */
 824         if ( pd->postPopExpr != 0 ) {
 825                 out << "  <postpop>";
 826                 writeInlineList( pd->postPopExpr );
 827                 out << "</postpop>\n";
 828         }
 829
 830         /*
 831          * Variable expressions.
 832          */
 833
 834         if ( pd->pExpr != 0 ) {
 835                 out << "  <p_expr>";
 836                 writeInlineList( pd->pExpr );
 837                 out << "</p_expr>\n";
 838         }
 839
 840         if ( pd->peExpr != 0 ) {
 841                 out << "  <pe_expr>";
 842                 writeInlineList( pd->peExpr );
 843                 out << "</pe_expr>\n";
 844         }
 845
 846         if ( pd->eofExpr != 0 ) {
 847                 out << "  <eof_expr>";
 848                 writeInlineList( pd->eofExpr );
 849                 out << "</eof_expr>\n";
 850         }
 851
 852         if ( pd->csExpr != 0 ) {
 853                 out << "  <cs_expr>";
 854                 writeInlineList( pd->csExpr );
 855                 out << "</cs_expr>\n";
 856         }
 857
 858         if ( pd->topExpr != 0 ) {
 859                 out << "  <top_expr>";
 860                 writeInlineList( pd->topExpr );
 861                 out << "</top_expr>\n";
 862         }
 863
 864         if ( pd->stackExpr != 0 ) {
 865                 out << "  <stack_expr>";
 866                 writeInlineList( pd->stackExpr );
 867                 out << "</stack_expr>\n";
 868         }
 869
 870         if ( pd->actExpr != 0 ) {
 871                 out << "  <act_expr>";
 872                 writeInlineList( pd->actExpr );
 873                 out << "</act_expr>\n";
 874         }
 875
 876         if ( pd->tokstartExpr != 0 ) {
 877                 out << "  <tokstart_expr>";
 878                 writeInlineList( pd->tokstartExpr );
 879                 out << "</tokstart_expr>\n";
 880         }
 881
 882         if ( pd->tokendExpr != 0 ) {
 883                 out << "  <tokend_expr>";
 884                 writeInlineList( pd->tokendExpr );
 885                 out << "</tokend_expr>\n";
 886         }
 887
 888         if ( pd->dataExpr != 0 ) {
 889                 out << "  <data_expr>";
 890                 writeInlineList( pd->dataExpr );
 891                 out << "</data_expr>\n";
 892         }
 893
 894         writeExports();
 895
 896         writeMachine();
 897
 898         out <<
 899                 "</ragel_def>\n";
 900 }
 901
 902 void XMLCodeGen::makeBackend()
 903 {
 904         /* Open the definition. */
 905         xmlParser.open_ragel_def( fsmName );
 906
 907         /* Alphabet type. */
 908         xmlParser.cgd->setAlphType( keyOps->alphType->internalName );
 909
 910         /* Getkey expression. */
 911         if ( pd->getKeyExpr != 0 ) {
 912                 out << "  <getkey>";
 913                 writeInlineList( pd->getKeyExpr );
 914                 out << "</getkey>\n";
 915         }
 916
 917         /* Access expression. */
 918         if ( pd->accessExpr != 0 ) {
 919                 out << "  <access>";
 920                 writeInlineList( pd->accessExpr );
 921                 out << "</access>\n";
 922         }
 923
 924         /* PrePush expression. */
 925         if ( pd->prePushExpr != 0 ) {
 926                 out << "  <prepush>";
 927                 writeInlineList( pd->prePushExpr );
 928                 out << "</prepush>\n";
 929         }
 930
 931         /* PostPop expression. */
 932         if ( pd->postPopExpr != 0 ) {
 933                 out << "  <postpop>";
 934                 writeInlineList( pd->postPopExpr );
 935                 out << "</postpop>\n";
 936         }
 937
 938         /*
 939          * Variable expressions.
 940          */
 941
 942         if ( pd->pExpr != 0 ) {
 943                 out << "  <p_expr>";
 944                 writeInlineList( pd->pExpr );
 945                 out << "</p_expr>\n";
 946         }
 947
 948         if ( pd->peExpr != 0 ) {
 949                 out << "  <pe_expr>";
 950                 writeInlineList( pd->peExpr );
 951                 out << "</pe_expr>\n";
 952         }
 953
 954         if ( pd->eofExpr != 0 ) {
 955                 out << "  <eof_expr>";
 956                 writeInlineList( pd->eofExpr );
 957                 out << "</eof_expr>\n";
 958         }
 959
 960         if ( pd->csExpr != 0 ) {
 961                 out << "  <cs_expr>";
 962                 writeInlineList( pd->csExpr );
 963                 out << "</cs_expr>\n";
 964         }
 965
 966         if ( pd->topExpr != 0 ) {
 967                 out << "  <top_expr>";
 968                 writeInlineList( pd->topExpr );
 969                 out << "</top_expr>\n";
 970         }
 971
 972         if ( pd->stackExpr != 0 ) {
 973                 out << "  <stack_expr>";
 974                 writeInlineList( pd->stackExpr );
 975                 out << "</stack_expr>\n";
 976         }
 977
 978         if ( pd->actExpr != 0 ) {
 979                 out << "  <act_expr>";
 980                 writeInlineList( pd->actExpr );
 981                 out << "</act_expr>\n";
 982         }
 983
 984         if ( pd->tokstartExpr != 0 ) {
 985                 out << "  <tokstart_expr>";
 986                 writeInlineList( pd->tokstartExpr );
 987                 out << "</tokstart_expr>\n";
 988         }
 989
 990         if ( pd->tokendExpr != 0 ) {
 991                 out << "  <tokend_expr>";
 992                 writeInlineList( pd->tokendExpr );
 993                 out << "</tokend_expr>\n";
 994         }
 995
 996         if ( pd->dataExpr != 0 ) {
 997                 out << "  <data_expr>";
 998                 writeInlineList( pd->dataExpr );
 999                 out << "</data_expr>\n";
1000         }
1001
1002         writeExports();
1003
1004         writeMachine();
1005
1006         out <<
1007                 "</ragel_def>\n";
1008 }
1009
1010