Convert between upper and lower case

doob Joined: 01/06/07 Posts: 70

Posted: 09/12/07 16:29:41 What is the appropriate way to convert a string between upper and lower case? The only thing I found was the tango.text.Ascii module. But it doesn't feel particular safe when the documentation says: "These generally will not work with utf8", and the name of the module is "Ascii".

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kris Joined: 03/27/04 Posts: 581

Posted: 09/12/07 17:09:02 Tango currently has no comparison/upper/lower for UTF since it's a deep and often tricky subject. We expect to cover the topic fully, but haven't yet found the time to address it. In the meantime, the Mango project has wrappers for extensive ICU project (which may give you an idea of the size and extent of the issues). There are also some interim helper utilities in the tango.unicode project on dsource. If you know someone who is familiar with these issues, we'd love to get something going :)