Class to hold values from UV dist grammar parser. More...

#include <MSUvDistParse.h>

Inheritance diagram for casa::MSUvDistParse:

Public Member Functions
	MSUvDistParse ()
	Default constructor.
	MSUvDistParse (const MeasurementSet *ms)
	Associate the ms and the shorthand.
const TableExprNode *	selectUVRange (const Double &startUV, const Double &endUV, const String &unit, Bool doSlow=False)
	~MSUvDistParse() {if (node_p) delete node_p;node_p=0x0;};
Vector< Bool >	selectedUnits ()
Matrix< Double >	selectedUV ()
Static Public Member Functions
static void	reset ()
static void	cleanup ()
static const TableExprNode *	node ()
	Get table expression node object.
Static Public Attributes
static MSUvDistParse *	thisMSUParser
Private Member Functions
void	accumulateUVList (const Double r0, const Double r1, const Bool wavelengthUnits, const Bool meterUnits)
Static Private Attributes
static TableExprNode *	node_p
static Matrix< Double >	selectedUV_p
static Vector< Bool >	meterUnits_p

Detailed Description

Class to hold values from UV dist grammar parser.

Intended use:

Internal

Etymology

MSUvDistParse is the class used to parse a UV dist command.

Synopsis

MSUvDistParse is used by the parser of UV dist sub-expression statements. The parser is written in Bison and Flex in files MSUvDistGram.y and .l. The statements in there use the routines in this file to act upon a reduced rule. Since multiple tables can be given (with a shorthand), the table names are stored in a list. The variable names can be qualified by the table name and will be looked up in the appropriate table.

The class MSUvDistParse only contains information about a table used in the table command. Global variables (like a list and a vector) are used in MSUvDistParse.cc to hold further information.

Global functions are used to operate on the information. The main function is the global function msUvDistCommand. It executes the given STaQL command and returns the resulting ms. This is, in fact, the only function to be used by a user.

Motivation

It is necessary to be able to give a ms command in ASCII. This can be used in a CLI or in the table browser to get a subset of a table or to sort a table.

Definition at line 86 of file MSUvDistParse.h.