1 karl  1.5 //%2006////////////////////////////////////////////////////////////////////////

  2 chuck 1.2 //

  3 karl  1.4 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
  4           // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
  5           // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;

  6 chuck 1.2 // IBM Corp.; EMC Corporation, The Open Group.

  7 karl  1.4 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
  8           // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
  9           // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
 10           // EMC Corporation; VERITAS Software Corporation; The Open Group.

 11 karl  1.5 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
 12           // EMC Corporation; Symantec Corporation; The Open Group.

 13 chuck 1.2 //
 14           // Permission is hereby granted, free of charge, to any person obtaining a copy
 15           // of this software and associated documentation files (the "Software"), to
 16           // deal in the Software without restriction, including without limitation the
 17           // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 18           // sell copies of the Software, and to permit persons to whom the Software is
 19           // furnished to do so, subject to the following conditions:
 20           // 
 21           // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
 22           // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
 23           // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 24           // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 25           // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 26           // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 27           // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 28           // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 29           //
 30           //==============================================================================
 31           //
 32           // Author: Humberto Rivero (hurivero@us.ibm.com) 
 33           //
 34 chuck 1.2 // Modified By:
 35           //
 36           //%/////////////////////////////////////////////////////////////////////////////
 37           
 38           #ifndef Pegasus_CQLParserState_h
 39           #define Pegasus_CQLParserState_h
 40           
 41           #include <Pegasus/Common/Config.h>
 42           #include <Pegasus/Common/ArrayInternal.h>
 43           #include <Pegasus/CQL/CQLSelectStatement.h>
 44           
 45           #ifdef PEGASUS_USE_EXPERIMENTAL_INTERFACES
 46           
 47           PEGASUS_NAMESPACE_BEGIN
 48           
 49           /** This is an internal structure used for holding parser state information
 50               during parsing (while inside the WQLParser::parse() method). Instances
 51               of this class are created and destroyed by WQLParser::parse().
 52           */
 53           struct CQLParserState
 54           {
 55 chuck 1.2     //
 56               // Text containing SELECT statement (must be null-terminated).
 57               //
 58           
 59               const char* text;
 60           
 61               //
 62               // Size in bytes (including null terminator) of the text.
 63               //
 64           
 65               Uint32 textSize;
 66           
 67               //
 68               // Offset to current parser position in the above text.
 69               //
 70           
 71               Uint32 offset;
 72           
 73               //
 74               // The output object being initialized during parsing. This object is
 75               // set to point to the statement argument passed to the WQLParser::parse()
 76 chuck 1.2     // method.
 77               //
 78           
 79               CQLSelectStatement* statement;
 80           
 81               //
 82               // Set to true when there is an error (set by WQL_error()).
 83               //
 84           
 85               Boolean error;
 86           
 87               //
 88               // Error message if any (set by WQL_error()).
 89               //
 90           
 91               String errorMessage;
 92           
 93               //
 94               // A list of strings created by lexer. These are deleted by the
 95               // WQLParser when cleaning up in the parse() method. It is not possible
 96               // to reliably clean them up anywhere else due to potential parse errors
 97 chuck 1.2     // which prevent YACC actions (which might attempt to free them) from
 98               // being reached. These strings are outstanding in the sense that they
 99               // need to be cleaned up (not in the sense that they are excellent examples
100               // of strings).
101               //
102           
103               Array<char*> outstandingStrings;
104           

105 humberto 1.3     //
106                  // This tracks the current token position within the Select Statement being parsed
107                  // This is incremented and cleared in CQL.l
108                  //

109 chuck    1.2     Uint32 currentTokenPos;
110              

111 humberto 1.3     //
112                  // This tracks the token number we are curently processing.
113                  // This is incremented and cleared in CQL.l
114                  //

115 chuck    1.2     Uint32 tokenCount;
116              

117 humberto 1.3     //
118                  // This tracks the current rule in String format in the Select Statement we are currently parsing
119                  // This is updated with each production in CQL.y
120                  //

121 chuck    1.2     String currentRule;
122              
123              };
124              
125              PEGASUS_NAMESPACE_END
126              #endif
127              #endif /* Pegasus_CQLParserState_h */