Tests if a character string contains only letters.

Syntax

$isalphabetic(string)

Parameters

Return Value

1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).

Comments

This function tests if a particular character string is alphabetic.

Example

$isalphabetic("abc")

Evaluates to $True.

$isalphabetic("abc1")

Evaluates to $False.

See Also

$isalphanumeric

$isdate

$isdigit

$islower

$isnumber

$isupper

$iszimname

Character Literals

Functional Expressions