is_validvarname (MathScript RT Module Function)

LabVIEW 2012 MathScript RT模块帮助

版本日期:June 2012

产品编号:373123C-0118

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(仅限Windows)

Owning Class: membership

Requires: MathScript RT Module

Syntax

c = is_validvarname(a)

Legacy Name: isvarname

Description

Determines whether a string is a valid variable name. A valid variable name begins with a letter followed by a number of letters, digits, or underscores. The length of a valid variable name must be less than or equal to maxnamelen. is_validvarname does not determine whether a variable of the name you specify exists.

Examples

Inputs

Name Description
a Specifies a string.

Outputs

Name Description
c Returns 1 if a is a valid variable name. Otherwise, this function returns 0. c is a Boolean.

Details

The following table lists the support characteristics of this function.

Supported in the LabVIEW Run-Time Engine Yes
Supported on RT targets Yes
Suitable for bounded execution times on RT Not characterized

Examples

C = is_validvarname('__name')
C = is_validvarname('n_a_m_e_')

Related Topics

is_keyword
maxnamelen

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