From: "Drew Adams" <drew.adams@oracle.com>
To: "'xfq'" <xfq.free@gmail.com>, <help-gnu-emacs@gnu.org>
Subject: RE: About regexp
Date: Sun, 25 Nov 2012 07:41:33 -0800 [thread overview]
Message-ID: <F32F7B31DBD34FE1963ABADD5C2218EC@us.oracle.com> (raw)
In-Reply-To: <50B1DBEF.2040906@gmail.com>
> The default value of the variable `sentence-end-base' is:
> [.?!][]\"'")}]*
> There is a backslash in the second part of the regexp, why?
C-h v sentence-end-base tells you:
sentence-end-base is a variable defined in `paragraphs.el'.
Its value is "[.?!][]\"'")}]*"
IOW, the value is a string. The double-quote chars shown surrounding the string
are not characters in the string. The double-quote char shown just before the
single-quote char, ', is in the string. When printed, that char is escaped with
a backslash. The char in the string following the ' char is a different char (a
curly quote) - it is not used to indicate the string limits, so it need not be
escaped to distinguish it.
next prev parent reply other threads:[~2012-11-25 15:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-25 8:50 About regexp xfq
2012-11-25 15:41 ` Drew Adams [this message]
2012-11-26 7:50 ` xfq
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