1 martin 1.5 //%LICENSE////////////////////////////////////////////////////////////////

 2 martin 1.6 //

 3 martin 1.5 // Licensed to The Open Group (TOG) under one or more contributor license
 4            // agreements.  Refer to the OpenPegasusNOTICE.txt file distributed with
 5            // this work for additional information regarding copyright ownership.
 6            // Each contributor licenses this file to you under the OpenPegasus Open
 7            // Source License; you may not use this file except in compliance with the
 8            // License.

 9 martin 1.6 //

10 martin 1.5 // Permission is hereby granted, free of charge, to any person obtaining a
11            // copy of this software and associated documentation files (the "Software"),
12            // to deal in the Software without restriction, including without limitation
13            // the rights to use, copy, modify, merge, publish, distribute, sublicense,
14            // and/or sell copies of the Software, and to permit persons to whom the
15            // Software is furnished to do so, subject to the following conditions:

16 martin 1.6 //

17 martin 1.5 // The above copyright notice and this permission notice shall be included
18            // in all copies or substantial portions of the Software.

19 martin 1.6 //

20 martin 1.5 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

21 martin 1.6 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

22 martin 1.5 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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27 martin 1.6 //

28 martin 1.5 //////////////////////////////////////////////////////////////////////////

29 mike   1.2 
30            This directory defines a library to be used to compile WQL1 query
31            statement (which may only contain a simple SELECT statement).
32            
33            The main interface is in <Pegasus/WQL/WQLParser.h> which contains an
34            example.
35            
36            See program under tests/Parser for an example.
37            
38            To generate documentation under:
39            
40                <pegasus-root>/pegasus/doc/reference/Pegasus/WQL/index.html
41            
42            Type "make docxx".
43            

44 karl   1.3 WARNING: Compiling the grammar.  The Makefile includes a section to
45            compile the grammar that is defined in WQL.l and WQL.y.  This Makefile
46            allows either lex and yacc or flex/bision tools to be used for the

47 kumpf  1.7 compilation.

48 karl   1.3 
49            However, we have noted a significant difference in the various versions
50            of bison and flex.  We recommend that anybody compiling the grammar for
51            WQL use an up-to-date version of lex/yacc or flex/bison.  In particular,
52            the versions generally available in windows have proven to be out of date
53            and created several questionable output structures.
54            
55            This has been successfully compiled on current Linux platforms using
56            bison 1.87 and flex verison 2.5.4.
57            
58            
59