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Re: n00b question on spacing

References (1 earlier) <24094189.2779.1371851333304.JavaMail.rgacote@ip-225.appropriatesolutions.com> <mailman.3701.1371923002.3114.python-list@python.org> <kqalj4$d58$1@dont-email.me> <CAMjeLr9MwFVtdDy6P3+GAksKXJ3pGSG7g-9f_4tRdAXrNpFHUg@mail.gmail.com> <kqbub9$n7n$1@ger.gmane.org>
Date 2013-06-25 21:48 +1000
Subject Re: n00b question on spacing
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.3809.1372160925.3114.python-list@python.org> (permalink)

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On Tue, Jun 25, 2013 at 9:19 PM, Robert Kern <robert.kern@gmail.com> wrote:
> There is quite a bit of Python's lexical analysis that is specified in
> places other than the formal notation. That does not mean it is undefined.
> It is well defined in the lexer code and the documentation. You suggest that
> a "rule probably should be added to the lexer to make this explicit." That
> is not necessary. The rule is already there.

Be careful; Python is not an implementation-defined language. Python
has no "lexer code" - CPython does, and is probably what you're
thinking of. (There are other languages that *are*
implementation-defined, meaning that it *is* correct to talk about
features in that way. Python just isn't one of them.) Sometimes a rule
needs to be clarified to mandate something that was previously left up
to the implementation; however, if that's the case, the rule would not
be added to the lexer, but to the documentation.

ChrisA

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Thread

Re: n00b question on spacing Mark Janssen <dreamingforward@gmail.com> - 2013-06-22 10:43 -0700
  Re: n00b question on spacing alex23 <wuwei23@gmail.com> - 2013-06-25 09:48 +1000
    Re: n00b question on spacing Mark Janssen <dreamingforward@gmail.com> - 2013-06-24 17:22 -0700
    Re: n00b question on spacing Robert Kern <robert.kern@gmail.com> - 2013-06-25 12:19 +0100
    Re: n00b question on spacing Chris Angelico <rosuav@gmail.com> - 2013-06-25 21:48 +1000
    Re: n00b question on spacing Robert Kern <robert.kern@gmail.com> - 2013-06-25 12:59 +0100
    Re: n00b question on spacing Chris Angelico <rosuav@gmail.com> - 2013-06-25 22:07 +1000

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