ISLOWER()
 Determine if the leftmost character is a lowercase letter
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 Syntax

     ISLOWER(<cString>) --> lBoolean

 Arguments

     <cString> is the character string to be examined.

 Returns

     ISLOWER() returns true (.T.) if the first character of the character
     string is a lowercase letter; otherwise, it returns false (.F.).

 Description

     ISLOWER() is a character function that determines whether the first
     character of a character string is lowercase.  It is the inverse of
     ISUPPER() which determines whether a character begins with an uppercase
     character.

     Both ISLOWER() and ISUPPER() relate to the LOWER() and UPPER() functions
     which actually convert lowercase characters to uppercase, and vice
     versa.

 Examples

     .  These examples demonstrate various results of ISLOWER():

        ? ISLOWER("aBcDe")         // Result: .T.
        ? ISLOWER("AbcDe")         // Result: .F.
        ? ISLOWER("1abcd")         // Result: .F.
        ? ISLOWER("abcd")            // Result: .T.

 Files   Library is CLIPPER.LIB.