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Re: displaying control characters/regex help

From: Kevin Rodgers
Subject: Re: displaying control characters/regex help
Date: Thu, 09 Nov 2006 11:59:34 -0700
User-agent: Thunderbird (Windows/20061025)

Peter wrote:
Hi - I'd like to know if Emacs has the ability to display control
(non-printing) characters (as in Word, where it is possible to hit a
button and see representations of all the non-printing characters).

See the Text Display node of the Emacs manual, and follow its reference
to the Display Tables node of the Emacs Lisp manual and its subnodes.

may not actually need it for the problem I'm working on, but it would
be nice to know - what I'm actually trying to accomplish is a global
search-and-replace...I'm looking to replace:
Any amount of whitespace (spaces, tabs, carriage returns), followed by
either one or two digits, followed by any amount of whitespace,
followed by a fixed string, followed by (possibly) more
whitespace. There would be regular text (word characters) on either
side of this regex region. (I'm trying to clean up a document that was
saved-as-text from Acroread, that had a page number and a fixed footer
on each page).




My string is quite stringy.


I want to replace the entire mess between the boundaries with just a
carriage return.

C-M-% \s-*[0-9]\{1,2\}\s-*My SPC string SPC is SPC quite SPC stringy \s-* RET C-q C-j RET

If you want to match the fixed string exactly, use `C-q SPC' instead of
just `SPC'.


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