XFA Specification
Chapter 23, FormCalc Specification
String Built-in Functions
891
Upper()
This function returns a string with all given lowercase characters converted to uppercase.
Syntax
Upper(s1[, k1])
Parameters
s1
is the string to convert.
k1
is a locale identifier string, as described in
“Specifying a Locale (Locale Identifier String)” on page 828.
If k1 is omitted, the
prevailing locale
Returns
The uppercased string or null if any of its mandatory parameters are null.
In some locales, there are alphabetic characters that do not have a lowercase equivalent.
Bugs
The current implementation limits the operation of this function to the Latin1 subrange of the Unicode 2.1
character set. Characters outside this subrange are never converted.
Examples
Upper("abc")
returns "ABC".
Upper("àbCdé")
returns "ÀBCDÉ".