Re: [isabelle] Supporting native Unicode input in Isabelle/jEdit

2013-03-01 12:30 Makarius:
> On Thu, 28 Feb 2013, Christoph LANGE wrote:
>> I wonder why Isabelle/jEdit does not support native Unicode input, but
>> only uses Unicode for display?
> Taking this question in isolation, it actually should work both for
> input and display.

Indeed it does.  I'm no longer sure how I came up with this question a
few months back.  Maybe it didn't work in the 2012 version?  I don't

> The prover sources are stored in a certain text
> format as Isabelle "symbols", but that is treated as "encoding" by
> jEdit, so you will edit the text in UTF-16 of the JVM.  This is not
> fundamentally different from having external files in UTF-8, UTF-16,
> UTF-32 etc. all recoded to the UTF-16 of Java before editing it.

Given all these different encodings I agree that it does not make sense
to arbitrarily choose one of them as the preferred one for *.thy files,
as this does not ensure that there won't be some text editor messing it
up, e.g. an editor that only supports UTF-8 and that assumes any file to
be in UTF-8.



Christoph Lange, School of Computer Science, University of Birmingham, Skype duke4701

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