casacore::MSFieldParse Class Reference

Class to hold values from field grammar parser. More...

#include <MSFieldParse.h>

Inheritance diagram for casacore::MSFieldParse:

Public Member Functions
	MSFieldParse ()
	Default constructor. More...
	MSFieldParse (const MeasurementSet *ms)
	MSFieldParse (const MSField &fieldSubTable, const TableExprNode &columnAsTEN)
	~MSFieldParse ()
const TableExprNode *	selectFieldIds (const Vector< Int > &fieldIds)
MSField &	subTable ()
Public Member Functions inherited from casacore::MSParse
	MSParse ()
	Default constructor for List container class. More...
	MSParse (const MSParse &)
	Copy constructor (copy semantics). More...
	~MSParse ()
MSParse &	operator= (const MSParse &)
	Assignment (copy semantics). More...
	MSParse (const MeasurementSet *ms, const String &shorthand)
	Associate the ms and the shorthand. More...
	MSParse (const MSSelectableTable *ms, const String &shorthand)
	Associate the ms and the shorthand. More...
Bool	test (const String &shortHand) const
	Test if shorthand matches. More...
String &	shorthand ()
	Get the shorthand. More...
MeasurementSet *	ms ()
	Get ms object. More...
MSSelectableTable *	msInterface ()
	Get ms object. More...
void	setMS (MeasurementSet *ms)
void	setMSInterface (MSSelectableTable *msI)
void	addCondition (TableExprNode &target, TableExprNode &source)

Static Public Member Functions
static const TableExprNode *	node ()
	Get table expression node object. More...
static Vector< Int >	selectedIDs ()
static void	reset ()
static void	cleanup ()

Static Public Attributes
static MSFieldParse *	thisMSFParser
Static Public Attributes inherited from casacore::MSParse
static MeasurementSet *	ms_p
static MSSelectableTable *	msInterface_p

Private Attributes
const String	colName
MSField	msFieldSubTable_p

Static Private Attributes
static TableExprNode *	node_p
static Vector< Int >	idList
static TableExprNode	columnAsTEN_p

Detailed Description

Class to hold values from field grammar parser.

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.

Intended use:

Internal

Etymology

MSFieldParse is the class used to parse a field command.

Synopsis

MSFieldParse is used by the parser of field sub-expression statements. The parser is written in Bison and Flex in files MSFieldGram.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 MSFieldParse only contains information about a table used in the table command. Global variables (like a list and a vector) are used in MSFieldParse.cc to hold further information.

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

Definition at line 85 of file MSFieldParse.h.

Constructor & Destructor Documentation

casacore::MSFieldParse::MSFieldParse

(

)

Default constructor.

casacore::MSFieldParse::MSFieldParse

(

const MeasurementSet *

ms

)

casacore::MSFieldParse::MSFieldParse	(	const MSField &	fieldSubTable,
		const TableExprNode &	columnAsTEN
	)

casacore::MSFieldParse::~MSFieldParse ( )

inline

Definition at line 93 of file MSFieldParse.h.

References columnAsTEN_p.

Member Function Documentation

static void casacore::MSFieldParse::cleanup ( )

inlinestatic

Definition at line 102 of file MSFieldParse.h.

References node_p.

static const TableExprNode* casacore::MSFieldParse::node ( )

static

Get table expression node object.

static void casacore::MSFieldParse::reset ( )

static

static Vector<Int> casacore::MSFieldParse::selectedIDs ( )

inlinestatic

Definition at line 100 of file MSFieldParse.h.

References idList.

const TableExprNode* casacore::MSFieldParse::selectFieldIds

(

const Vector< Int > &

fieldIds

)

MSField& casacore::MSFieldParse::subTable ( )

inline

Definition at line 104 of file MSFieldParse.h.

References msFieldSubTable_p.

Member Data Documentation

const String casacore::MSFieldParse::colName

private

Definition at line 107 of file MSFieldParse.h.

TableExprNode casacore::MSFieldParse::columnAsTEN_p

staticprivate

Definition at line 110 of file MSFieldParse.h.

Referenced by ~MSFieldParse().

Vector<Int> casacore::MSFieldParse::idList

staticprivate

Definition at line 108 of file MSFieldParse.h.

Referenced by selectedIDs().

MSField casacore::MSFieldParse::msFieldSubTable_p

private

Definition at line 109 of file MSFieldParse.h.

Referenced by subTable().

TableExprNode* casacore::MSFieldParse::node_p

staticprivate

Definition at line 106 of file MSFieldParse.h.

Referenced by cleanup().

MSFieldParse* casacore::MSFieldParse::thisMSFParser

static

Definition at line 99 of file MSFieldParse.h.

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The documentation for this class was generated from the following file:

• casa/casacore/ms/MSSel/MSFieldParse.h