$islower
Tests if the letters in a character string are lowercase.
Syntax
$islower(string)
Parameters
| string | a character string or an expression that evaluates to a character string |
Return Value
1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).
Comments
This function tests if a particular character string is lower case, i.e., contains no uppercase letters.
Example
$islower(“Abc”)
Evaluates to $False.
$islower(34)
Evaluates to $True.
See Also