On Sat, Sep 16, 2017 at 10:29:26AM +0100, Tony Marston wrote:

> People keep telling me that switching between upper and lower case
> for all character sets in the universe is not 100% simple because of
> a small number of exceptions. So what? Identify the exceptions and
> write code which deals with them.

Thereby increasing the complexity of the PHP engine - which means more bugs and
slower execution.  It also makes it harder for the user to understand: they need
to get their heads round the corner cases.

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Alain Williams
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Lecturer.
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