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File: [Pegasus] / pegasus / src / Pegasus / WQL / readme.txt
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Revision: 1.3, Mon Feb 14 23:22:47 2005 UTC (19 years, 4 months ago) by karl Branch: MAIN CVS Tags: STABLE, RELEASE_2_5_0-RC1, RELEASE_2_5_0, PEP244_ServerProfile-root, PEP244_ServerProfile-branch, PEP233_EmbeddedInstSupport-root, PEP214ROOT, PEP214BRANCH, PEP214-root, PEP214-branch, PEP-214B-root, PEGASUS_2_5_0_PerformanceDev-string-end, PEGASUS_2_5_0_PerformanceDev-rootlt, PEGASUS_2_5_0_PerformanceDev-root, PEGASUS_2_5_0_PerformanceDev-r2, PEGASUS_2_5_0_PerformanceDev-r1, PEGASUS_2_5_0_PerformanceDev-lit-end, PEGASUS_2_5_0_PerformanceDev-buffer-end, PEGASUS_2_5_0_PerformanceDev-branch, PEGASUS_2_5_0_PerformanceDev-AtomicInt-branch, PEG25_IBM_5_16_05, NPEGASUS_2_5_0_PerformanceDev-String-root, NNPEGASUS_2_5_0_PerformanceDev-String-branch, BUG_4225_PERFORMANCE_VERSION_1_DONE Branch point for: PEP233_EmbeddedInstSupport-branch Changes since 1.2: +16 -0 lines BUG#: 2731 TITLE: Correct Compile Failure buiding WQLYACC.cpp on HP-UX DESCRIPTION: the yacc output was putting in a pragma with the file name changed from uppercase to lower case. This was corrected by using a different version of bison/flex. Note that there were a number of other differences that showed up when this was compiled with an up-to-date version of the utilities. The resulting files pass the included parser tests. |
This directory defines a library to be used to compile WQL1 query statement (which may only contain a simple SELECT statement). The main interface is in <Pegasus/WQL/WQLParser.h> which contains an example. See program under tests/Parser for an example. To generate documentation under: <pegasus-root>/pegasus/doc/reference/Pegasus/WQL/index.html Type "make docxx". WARNING: Compiling the grammar. The Makefile includes a section to compile the grammar that is defined in WQL.l and WQL.y. This Makefile allows either lex and yacc or flex/bision tools to be used for the compilation. However, we have noted a significant difference in the various versions of bison and flex. We recommend that anybody compiling the grammar for WQL use an up-to-date version of lex/yacc or flex/bison. In particular, the versions generally available in windows have proven to be out of date and created several questionable output structures. This has been successfully compiled on current Linux platforms using bison 1.87 and flex verison 2.5.4.
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