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Availability
This routine is available starting with SIL Engine™ 1.0.
Syntax
isUpper(str)
Description
Returns "true" if the provided argument str is a string containing only upper letters.Parameters
Parameter name | Type | Required | Description |
|---|---|---|---|
str | string | Yes | Specifies a character expression. |
Return type
boolean (true/false)
Example
Example 1
wret = isUpper("FOOBAR");
print(wret);
Print true
Example 2
wret = isUpper("aAA2345f.FF");
print(wret);
Print false
Example 3
wret = isUpper("");
print(wret);
Print false
Notes
isUpper returns "false" if the character string str contains blanks or special characters or is a null string.
See also