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Re: M-<function-key> vs. ESC <function-key>

From: David Kastrup
Subject: Re: M-<function-key> vs. ESC <function-key>
Date: Thu, 06 Jan 2005 20:20:21 +0100
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/21.3.50 (gnu/linux)

Stefan Monnier <address@hidden> writes:

>>>>> Yes, I do, because that's what Emacs is receiving when I press
>>>>> Meta-left, for example.  More specifically, when I type
>>>>> Meta-left at Emacs running in xterm it receives the key sequence
>>>>> [?\e ?\e ?O ?D], which gets translated to [?\e left] through
>>>>> function-key-map.
>>>>> That is a surprise to me.  Someone must have changed this in recent
>>>>> years.
>>>> He did not say what his input terminal is.  It may not be X.
>>> He said it's an xterm.
>> Which is not X.  So Emacs never gets to see Meta.
> Please re-read: he presses M-left, which xterm turns into [?\e ?\e
> ?O ?D] and which function-key-map transforms to [?\e left] and the
> lookup with [?\e left] fails to find the M-left binding to
> backward-word.
> In contrast, M-C-f is turned by xterm into [?\e ?\C-f] which
> function-key-map leaves alone and the lookup for [?\e ?\C-f]
> successfully finds the M-C-f binding to forward-sexp.

I should work on my attention span.  I even quoted the relevant
passage.  And contributed complete nonsense.  As a kind of excuse, I
have had net access only in the mniddle of the night in the last few
days, and my niece (where I have been visiting) tended to wake me up
at 8am, so the time for sleeping has been in short supply.

David Kastrup, Kriemhildstr. 15, 44793 Bochum

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