expression.c File Reference

Expressions handling. More...

#include "../../../libraries/scpi-parser/inc/scpi/expression.h"
#include "../../../libraries/scpi-parser/inc/scpi/error.h"
#include "../../../libraries/scpi-parser/inc/scpi/parser.h"
#include "lexer_private.h"

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)
	Parse entry on specified position.
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.
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.
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.

Detailed Description

Expressions handling.

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

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

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

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