ragel/xmlcodegen.h

   1 /*
   2  *  Copyright 2005-2007 Adrian Thurston <thurston@cs.queensu.ca>
   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 #ifndef _XMLDOTGEN_H
  23 #define _XMLDOTGEN_H
  24
  25 #include <iostream>
  26 #include "avltree.h"
  27 #include "fsmgraph.h"
  28 #include "parsedata.h"
  29
  30 /* Forwards. */
  31 struct TransAp;
  32 struct FsmAp;
  33 struct ParseData;
  34
  35 struct RedActionTable
  36 :
  37         public AvlTreeEl<RedActionTable>
  38 {
  39         RedActionTable( const ActionTable &key )
  40         :
  41                 key(key),
  42                 id(0)
  43         { }
  44
  45         const ActionTable &getKey()
  46                 { return key; }
  47
  48         ActionTable key;
  49         int id;
  50 };
  51
  52 typedef AvlTree<RedActionTable, ActionTable, CmpActionTable> ActionTableMap;
  53
  54 struct NextRedTrans
  55 {
  56         Key lowKey, highKey;
  57         TransAp *trans;
  58         TransAp *next;
  59
  60         void load() {
  61                 if ( trans != 0 ) {
  62                         next = trans->next;
  63                         lowKey = trans->lowKey;
  64                         highKey = trans->highKey;
  65                 }
  66         }
  67
  68         NextRedTrans( TransAp *t ) {
  69                 trans = t;
  70                 load();
  71         }
  72
  73         void increment() {
  74                 trans = next;
  75                 load();
  76         }
  77 };
  78
  79 class XMLCodeGen
  80 {
  81 public:
  82         XMLCodeGen( char *fsmName, ParseData *pd, FsmAp *fsm, std::ostream &out );
  83         void writeXML( );
  84
  85 private:
  86         void appendTrans( TransListVect &outList, Key lowKey, Key highKey, TransAp *trans );
  87         void writeStateActions( StateAp *state );
  88         void writeStateList();
  89         void writeStateConditions( StateAp *state );
  90
  91         void writeKey( Key key );
  92         void writeText( InlineItem *item );
  93         void writeGoto( InlineItem *item );
  94         void writeGotoExpr( InlineItem *item );
  95         void writeCall( InlineItem *item );
  96         void writeCallExpr( InlineItem *item );
  97         void writeNext( InlineItem *item );
  98         void writeNextExpr( InlineItem *item );
  99         void writeEntry( InlineItem *item );
 100         void writeLmSetActId( InlineItem *item );
 101         void writeLmOnLast( InlineItem *item );
 102         void writeLmOnNext( InlineItem *item );
 103         void writeLmOnLagBehind( InlineItem *item );
 104
 105         void writeExports();
 106         bool writeNameInst( NameInst *nameInst );
 107         void writeEntryPoints();
 108         void writeConditions();
 109         void writeInlineList( InlineList *inlineList );
 110         void writeActionList();
 111         void writeActionTableList();
 112         void reduceTrans( TransAp *trans );
 113         void reduceActionTables();
 114         void writeTransList( StateAp *state );
 115         void writeEofTrans( StateAp *state );
 116         void writeTrans( Key lowKey, Key highKey, TransAp *defTrans );
 117         void writeAction( Action *action );
 118         void writeLmSwitch( InlineItem *item );
 119         void writeMachine();
 120         void writeActionExec( InlineItem *item );
 121
 122         char *fsmName;
 123         ParseData *pd;
 124         FsmAp *fsm;
 125         std::ostream &out;
 126         ActionTableMap actionTableMap;
 127         int nextActionTableId;
 128 };
 129
 130
 131 #endif /* _XMLDOTGEN_H */