isupper_return_upper_case_character_.htm
| Navigation: Language Reference > 13 - Built-in Functions >====== ISUPPER (return upper case character) ====== |    |
ISUPPER( string )
| ISUPPER | Returns whether the string passed to it contains an upper case alphabetic character. |
| string | The label of the string to test. If the string contains more than one character, only the first character is tested. |
The ISUPPER procedure returns TRUE if the string passed to it is an upper case letter and false otherwise. This is independent of the language and collation sequence. This procedure requires that CLACASE has been set in the application's environment file or through the LOCALE statement.
| Return Data Type: | LONG |
Example:
SomeString STRING(1)
CODE
SomeString = 'A' !ISUPPER returns true
IF ISUPPER(SomeString)
X#= MESSAGE('Upper case string')
END
SomeString = 'a' !ISUPPER returns false
IF ISUPPER(SomeString)
X#= MESSAGE('Upper case string')
ELSE
X#= MESSAGE('Not upper case string')
END
See Also:
isupper_return_upper_case_character_.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1