Use the EL functions from `tc:format1` to `tc:format9` to replace up to 9 variables in a given internationalized text. This work like in .

The message format is: "#{demoBundle.format1}"

    <tc:out value="\#{tc:format1(demoBundle.format1, 695700)}"/>

The message format is: "#{demoBundle.format3}"

    <tc:out value="\#{tc:format3(demoBundle.format3, 5800, 15700000, 5000000)}"/>

The message format is: "#{demoBundle.format9}"

    <tc:out value="\#{tc:format9(demoBundle.format9, 0, 1, 2, 3, 4, 5, 6, 7, 8)}"/>

You may also use the `fn:` function library for string manipulation.

    <tc:out value="\#{fn:toUpperCase('uppercase')}"/>