MSAntennaGram.h

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00001 //# MSAntennaGram.h: Grammar for ms antenna sub-expressions
00002 //# Copyright (C) 1998
00003 //# Associated Universities, Inc. Washington DC, USA.
00004 //#
00005 //# This library is free software; you can redistribute it and/or modify it
00006 //# under the terms of the GNU Library General Public License as published by
00007 //# the Free Software Foundation; either version 2 of the License, or (at your
00008 //# option) any later version.
00009 //#
00010 //# This library is distributed in the hope that it will be useful, but WITHOUT
00011 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012 //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00013 //# License for more details.
00014 //#
00015 //# You should have received a copy of the GNU Library General Public License
00016 //# along with this library; if not, write to the Free Software Foundation,
00017 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
00018 //#
00019 //# Correspondence concerning AIPS++ should be addressed as follows:
00020 //#        Internet email: aips2-request@nrao.edu.
00021 //#        Postal address: AIPS++ Project Office
00022 //#                        National Radio Astronomy Observatory
00023 //#                        520 Edgemont Road
00024 //#                        Charlottesville, VA 22903-2475 USA
00025 //#
00026 //# $Id$
00027 
00028 #ifndef MS_MSANTENNAGRAM_H
00029 #define MS_MSANTENNAGRAM_H
00030 
00031 
00032 //# Includes
00033 #include <casacore/casa/aips.h>
00034 #include <casacore/casa/BasicSL/String.h>
00035 #include <casacore/casa/Arrays/Matrix.h>
00036 #include <casacore/ms/MSSel/MSAntennaParse.h> // routines used by bison actions
00037 
00038 namespace casacore { //# NAMESPACE CASACORE - BEGIN
00039 
00040 //# Forward Declarations
00041 class MeasurementSet;
00042 class TableExprNode;
00043 
00044 // <summary>
00045 // Global functions for flex/bison scanner/parser for MSAntennaGram
00046 // </summary>
00047   
00048 // <use visibility=local>
00049   
00050 // <reviewed reviewer="" date="" tests="">
00051 // </reviewed>
00052   
00053 // <prerequisite>
00054 //# Classes you should understand before using this one.
00055 //  <li> MSAntennaGram.l and .y  (flex and bison grammar)
00056 // </prerequisite>
00057   
00058 // <synopsis> 
00059 // Global functions are needed to define the input of the flex scanner
00060 // and to start the bison parser.
00061 // The input is taken from a string.
00062 // </synopsis> 
00063   
00064 // <motivation>
00065 // It is necessary to be able to give an image expression in ASCII.
00066 // This can be used in glish.
00067 // </motivation>
00068 // <todo asof="$DATE:$">
00069 //# A List of bugs, limitations, extensions or planned refinements.
00070 // </todo>
00071   
00072   
00073 // <group name=MSAntennaGramFunctions>
00074   
00075 // Declare the bison parser (is implemented by bison command).
00076 // It returns a TaQL expression tree.
00077   TableExprNode msAntennaGramParseCommand (MSSelectableTable& msLike,
00078                                            const String& command, 
00079                                            Vector<Int>& selectedAnts1,
00080                                            Vector<Int>& selectedAnts2,
00081                                            Matrix<Int>& selectedBaselines) ;
00082   TableExprNode msAntennaGramParseCommand (MSAntennaParse* thisParser,
00083                                            const TableExprNode& col1TEN,
00084                                            const TableExprNode& col2TEN,
00085                                            const String& command, 
00086                                            Vector<Int>& selectedAnts1,
00087                                            Vector<Int>& selectedAnts2,
00088                                            Matrix<Int>& selectedBaselines) ;
00089   TableExprNode msAntennaGramParseCommand (Table& subTable,
00090                                            TableExprNode& col1TEN,
00091                                            TableExprNode& col2TEN,
00092                                            const String& command, 
00093                                            Vector<Int>& selectedAnts1,
00094                                            Vector<Int>& selectedAnts2,
00095                                            Matrix<Int>& selectedBaselines) ;
00096   TableExprNode msAntennaGramParseCommand (const MeasurementSet *ms,
00097                                            const String& command,
00098                                            Vector<Int>& selectedAnt1,
00099                                            Vector<Int>& selectedAnt2,
00100                                            Matrix<Int>& selectedBaselines);
00101   
00102   TableExprNode baseMSAntennaGramParseCommand(MSAntennaParse* parser, const String& command,
00103                                               Vector<Int>& selectedAnts1,
00104                                               Vector<Int>& selectedAnts2,
00105                                               Matrix<Int>& selectedBaselines);
00106   // The yyerror function for the parser.
00107   // It throws an exception with the current token.
00108     void MSAntennaGramerror (const char*);
00109   
00110   // Give the current position in the string.
00111   // This can be used when parse errors occur.
00112   Int& msAntennaGramPosition();
00113   
00114   // Declare the input routine for flex/bison.
00115   int msAntennaGramInput (char* buf, int max_size);
00116   
00117   // A function to remove escaped characters.
00118   //String msAntennaGramRemoveEscapes (const String& in);
00119   
00120   // A function to remove quotes from a quoted string.
00121   //String msAntennaGramRemoveQuotes (const String& in);
00122   
00123   // </group>
00124   
00125 } //# NAMESPACE CASACORE - END
00126 
00127 #endif
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