Modifies the case of an input string to upper- or lowercase or capitalization. The default transformation will be uppercase as in `mb_convert_case` [1].

Possible modes are:

`lower` Transforms the input string to its lowercase representation

`upper` Transforms the input string to its uppercase representation

`capital` Transforms the input string to its first letter upper-cased, i.e. capitalization

`uncapital` Transforms the input string to its first letter lower-cased, i.e. uncapitalization

`capitalWords` Transforms the input string to each containing word being capitalized

Note that the behavior will be the same as in the appropriate PHP function `mb_convert_case` [1]; especially regarding locale and multibyte behavior.

= Examples =

<f:format.case>Some Text with miXed case</f:format.case>

SOME TEXT WITH MIXED CASE

<f:format.case mode="capital">someString</f:format.case>

SomeString

{article.title -> f:format.case(mode: 'capitalWords')}

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