isAlphaNumeric

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Availability

This routine is available starting with SIL Engine™ 1.0.

Syntax

isAlphaNumeric(str)

Description

Returns "true" if the provided argument str is a string containing only letters and digits.

Parameters

Parameter name

Type

Required

Description

str

string

Yes

Specifies a character expression.

Return type

boolean (true/false)

Example

Example 1

wret = isAlphaNumeric("foobar");
print(wret);

Print true

Example 2

wret = isAlphaNumeric("aaa2345G");
print(wret);

Print true

Example 3

wret = isAlphaNumeric("23asd.*;45");
print(wret);

Print false

Notes

isAlphaNumeric returns "false" if the character string str contains blanks or special characters or is a null string.

See also