GoFiler Legato Script Reference   Legato v 1.6e Application v 6.3a

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Chapter Five — General Functions (continued)

IsAlpha8859 Function

Overview

The IsAlpha8859 function tests if a string or character contains only alphabetic characters (ASCII or Latin Letters ISO-8859-1).

Syntax/Parameters

Syntax

boolean = IsAlpha8859 ( mixed value );

Parameters

value

A string or

a char to test. The character can be any type that will resolve to an integer.

Return Value

Returns TRUE if value contains only alphabetic characters (ASCII or ISO-8859-1) or FALSE if it contains non-alphabetic characters.

Remarks

The IsAlpha8859 function provides the broadest test for alphabetic characters as it includes ISO-8859-1 in addition to the basic ASCII alphabetic characters. There is Unicode support.

Related Functions

HasText — Tests a string for any text (alpha characters).

IsANSI — Tests a string for non-ANSI characters (allows some control characters).

IsANSICharacters — Tests a string for non-ANSI characters (no control characters).

IsANSISpace — Tests a character as white space including backspace (back tab, 0x08) and tab (0x09).

IsASCII — Tests a string for non-ASCII characters allowing for return and tab characters.

IsASCIICharacters — Tests a string for non-ASCII (no control characters).

IsAlpha — Tests a character or string for ASCII character(s).

IsAlphaNumeric — Tests a character for character ASCII letters or numbers.

IsAlphaNumeric8859 — Tests a character or string for ASCII letters, numbers and ISO-8859 Latin letter character(s).

IsExtendedAlpha — Tests a character to see if it is part of ISO-8859 latin alpha set commonly used in English.

Platform Support

Go13, Go16, GoFiler Complete, GoFiler Corporate, GoFiler, GoFiler Lite, GoXBRL

Legato IDE, Legato Basic

Page revised 2025-10-20

 

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GoFiler Legato Script Reference — Generated on 10/20/2025

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