JCL Help:StrIsAlphaNumUnderscore@AnsiString

 JCL Help: StrIsAlphaNumUnderscore Function

JCL Functions

► JclAnsiStrings.pas Functions

[+] JclAnsiStrings.pas Functions

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Summary

Tests whether S contains only alpha-numerical and underscore characters.

Pascal

 function StrIsAlphaNumUnderscore(const S: string): Boolean;
function StrIsAlphaNumUnderscore(const S: AnsiString): Boolean;

Parameters

Parameters	Description
const S: string	The string to test

Return Value

If S contains only alpha-numerical and underscore characters the result is True, otherwise the result is False.

Description

StrIsAlphaNum tests whether the supplied string consists only of alpha-numerical and underscore characters. That is, whether or not all individual characters come from the ['a'..'z', 'A'..'Z', '0'..'9', '_'] set.

See Also

StrIsAlpha StrConsistsOfNumberChars

About

Unit

JclAnsiStrings

Donator

Anthony Steele

Notes

If S is an empty string the result is False.

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