Functions and Directives Functions and Directives

Function IsLower() Foundation

Tests whether a character string begins with a lower case letter.

Syntax
IsLower( <cString> ) --> lLowerCase
Parameters
<cString>
<cString> is a character string expression.
Return

If the first character in <cString> is a lower case letter, IsLower() returns .T. (true), otherwise it returns .F. (false).

Description

The character function IsLower() tests whether the first character in a character string is a lower case letter. Lower case letters from "a" to "z" are recognized. If the first character is a digit, blank space, punctuation mark or other graphic character IsLower() returns the value .F. (false).

Language dependent special characters like umlauts or , and are identified as lower case letters when the appropriate collation table is selected.

The result depends on SET COLLATION and can be manipulated by LocaleConfigure() .

Examples
IsLower() 
// The example shows various results of the function IsLower() 

PROCEDURE Main 

   ? IsLower("Xbase++")           // result: .F. 
   ? IsLower(" ber")              // result: .T. 
   ? IsLower("0.nothing")         // result: .F. 
   ? IsLower("zeropointnothing")  // result: .T. 

RETURN
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