MSArrayGram.h

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00001 //# MSArrayGram.h: Grammar for ms scan 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_MSARRAYGRAM_H
00029 #define MS_MSARRAYGRAM_H
00030 
00031 
00032 //# Includes
00033 #include <casacore/casa/aips.h>
00034 #include <casacore/casa/BasicSL/String.h>
00035 
00036 namespace casacore { //# NAMESPACE CASACORE - BEGIN
00037 
00038 //# Forward Declarations
00039 class MeasurementSet;
00040 class TableExprNode;
00041 
00042 // <summary>
00043 // Global functions for flex/bison scanner/parser for MSArrayGram
00044 // </summary>
00045 
00046 // <use visibility=local>
00047 
00048 // <reviewed reviewer="" date="" tests="">
00049 // </reviewed>
00050 
00051 // <prerequisite>
00052 //# Classes you should understand before using this one.
00053 //  <li> MSArrayGram.l and .y  (flex and bison grammar)
00054 // </prerequisite>
00055 
00056 // <synopsis> 
00057 // Global functions are needed to define the input of the flex scanner
00058 // and to start the bison parser.
00059 // The input is taken from a string.
00060 // </synopsis> 
00061 
00062 // <motivation>
00063 // It is necessary to be able to give an image expression in ASCII.
00064 // This can be used in glish.
00065 // </motivation>
00066 // <todo asof="$DATE:$">
00067 //# A List of bugs, limitations, extensions or planned refinements.
00068 // </todo>
00069 
00070 
00071 // <group name=MSArrayGramFunctions>
00072 
00073 // Declare the bison parser (is implemented by bison command).
00074   TableExprNode msArrayGramParseCommand (const MeasurementSet *ms, const String& command, 
00075                                          Vector<Int>& idList, Int maxArrays=1000);
00076 
00077 // The yyerror function for the parser.
00078 // It throws an exception with the current token.
00079 void MSArrayGramerror (const char*);
00080 
00081 // Give the table expression node.
00082 // const TableExprNode *msArrayGramParseNode();
00083 // void msArrayGramParseDeleteNode();
00084 
00085 // Give the current position in the string.
00086 // This can be used when parse errors occur.
00087 Int& msArrayGramPosition();
00088 
00089 // Declare the input routine for flex/bison.
00090 int msArrayGramInput (char* buf, int max_size);
00091 
00092 // A function to remove escaped characters.
00093 //String msArrayGramRemoveEscapes (const String& in);
00094 
00095 // A function to remove quotes from a quoted string.
00096 //String msArrayGramRemoveQuotes (const String& in);
00097 
00098 // </group>
00099 
00100 } //# NAMESPACE CASACORE - END
00101 
00102 #endif
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