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Re: end-of-line $ in multiline regexp replace
From: |
Edward Dodge |
Subject: |
Re: end-of-line $ in multiline regexp replace |
Date: |
Fri, 31 Oct 2003 10:50:07 -0600 |
User-agent: |
Gnus/5.1002 (Gnus v5.10.2) Emacs/21.3.50 (darwin) |
"Leo" <leo.broska@NOSPAM.isys.com.au> writes:
> hi there
>
> want to replace a multiline regexp by an one-line replacement. (in fact i
> just want to delete the line with the regexp.)
>
> so, at first i tried:
> (query-replace-regexp ".*bytes.*$[ctrl-q][ctrl-j]" "" nil nil nil)
> which did not find any line. :-(
>
> then i just tried the same without the end-of-line "$":
> (query-replace-regexp ".*bytes.*[ctrl-q][ctrl-j]" "" nil nil nil)
> and that worked.
>
> i don't understand, why? the first regexp ".*bytes.*$[ctrl-q][ctrl-j]" seems
> to me even >>more valid<< then the second one.
>
> any explanations?
>
> tanks and cheers, leo
The $ meta-character represents the very end of a line, which would
include the newline character. Whereas C-q C-j is a regular
expression for the newline character. My guess is that $ marks the
very end of the line (INCLUDING the newline character) and so your
regexp is actually the equivalent of this:
".*bytes.*[ctrl-q][ctrl-j][ctrl-q][ctrl-j]"
--
Edward Dodge
/GNU Emacs 21.3.50.1 (powerpc-apple-darwin5.5) of 2002-10-11 on G3/