expression.h File Reference

Expressions handling. More...

#include "config.h"
#include "types.h"

Go to the source code of this file.

Typedefs
typedef enum _scpi_expr_result_t	scpi_expr_result_t

Enumerations
enum	_scpi_expr_result_t {   SCPI_EXPR_OK = 0 ,   SCPI_EXPR_ERROR ,   SCPI_EXPR_NO_MORE }

Functions
scpi_expr_result_t	SCPI_ExprNumericListEntry (scpi_t *context, scpi_parameter_t *param, int index, scpi_bool_t *isRange, scpi_parameter_t *valueFrom, scpi_parameter_t *valueTo)
scpi_expr_result_t	SCPI_ExprNumericListEntryInt (scpi_t *context, scpi_parameter_t *param, int index, scpi_bool_t *isRange, int32_t *valueFrom, int32_t *valueTo)
scpi_expr_result_t	SCPI_ExprNumericListEntryDouble (scpi_t *context, scpi_parameter_t *param, int index, scpi_bool_t *isRange, double *valueFrom, double *valueTo)
scpi_expr_result_t	SCPI_ExprChannelListEntry (scpi_t *context, scpi_parameter_t *param, int index, scpi_bool_t *isRange, int32_t *valuesFrom, int32_t *valuesTo, size_t length, size_t *dimensions)

Detailed Description

Expressions handling.

Definition in file expression.h.

Typedef Documentation

scpi_expr_result_t

typedef enum _scpi_expr_result_t scpi_expr_result_t

Definition at line 50 of file expression.h.

Enumeration Type Documentation

_scpi_expr_result_t

enum _scpi_expr_result_t

Enumerator
SCPI_EXPR_OK	0
SCPI_EXPR_ERROR
SCPI_EXPR_NO_MORE

Definition at line 45 of file expression.h.

Function Documentation

SCPI_ExprChannelListEntry()

scpi_expr_result_t SCPI_ExprChannelListEntry	(	scpi_t *	context,
		scpi_parameter_t *	param,
		int	index,
		scpi_bool_t *	isRange,
		int32_t *	valuesFrom,
		int32_t *	valuesTo,
		size_t	length,
		size_t *	dimensions )

Parse one list entry at specific position e.g. "1!2:5!6"

Parameters

context
param
index
isRange	return true if it is range
valuesFrom	return array of values from
valuesTo	return array of values to
length	length of values arrays
dimensions	real number of dimensions

Definition at line 266 of file expression.c.

SCPI_ExprNumericListEntry()

scpi_expr_result_t SCPI_ExprNumericListEntry	(	scpi_t *	context,
		scpi_parameter_t *	param,
		int	index,
		scpi_bool_t *	isRange,
		scpi_parameter_t *	valueFrom,
		scpi_parameter_t *	valueTo )

Parse entry on specified position

Parameters

context	scpi context
param	input parameter
index	index of position (start from 0)
isRange	return true if expression at index was range
valueFrom	return value from
valueTo	return value to

Returns

SCPI_EXPR_OK - parsing was succesful SCPI_EXPR_ERROR - parser error SCPI_EXPR_NO_MORE - no more data

See also

SCPI_ExprNumericListEntryInt, SCPI_ExprNumericListEntryDouble

Definition at line 83 of file expression.c.

SCPI_ExprNumericListEntryDouble()

scpi_expr_result_t SCPI_ExprNumericListEntryDouble	(	scpi_t *	context,
		scpi_parameter_t *	param,
		int	index,
		scpi_bool_t *	isRange,
		double *	valueFrom,
		double *	valueTo )

Parse entry on specified position and convert result to double

Parameters

context	scpi context
param	input parameter
index	index of position (start from 0)
isRange	return true if expression at index was range
valueFrom	return value from
valueTo	return value to

Returns

SCPI_EXPR_OK - parsing was succesful SCPI_EXPR_ERROR - parser error SCPI_EXPR_NO_MORE - no more data

See also

SCPI_ExprNumericListEntry, SCPI_ExprNumericListEntryInt

Definition at line 165 of file expression.c.

SCPI_ExprNumericListEntryInt()

scpi_expr_result_t SCPI_ExprNumericListEntryInt	(	scpi_t *	context,
		scpi_parameter_t *	param,
		int	index,
		scpi_bool_t *	isRange,
		int32_t *	valueFrom,
		int32_t *	valueTo )

Parse entry on specified position and convert result to int32_t

Parameters

context	scpi context
param	input parameter
index	index of position (start from 0)
isRange	return true if expression at index was range
valueFrom	return value from
valueTo	return value to

Returns

SCPI_EXPR_OK - parsing was succesful SCPI_EXPR_ERROR - parser error SCPI_EXPR_NO_MORE - no more data

See also

SCPI_ExprNumericListEntry, SCPI_ExprNumericListEntryDouble

Definition at line 134 of file expression.c.