🚀 go-pugleaf

In article <4300002@uicsl> prestat@uicsl.UUCP writes:
>All the responses to the question about using regular
>expressions to select lines seem to be non-responsive.

Enclosed is a summary of the responses I got via e-mail summary of them
are quite helpful.  BTW I have edited these.

>scott preece
>PREECE@GSWD-VMS.ARPA
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From: felix!hplabs!weemba@brahms.berkeley.edu (Matthew P Wiener)

(while (looking-at "regular expression") (action-1) (action 2) ...)

You can execute this without programming, by using ESC ESC to do a one-time
evaluation.  If you don't know what the names associated to certain key
actions are and can't find them in the manual, look at C-h c to get the
name.  Sometimes you need specific arguments for an action, C-h k or C-h f
will give you the details.  Have fun.

ucbvax!brahms!weemba	Matthew P Wiener/UCB Math Dept/Berkeley CA 94720
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From: felix!hplabs!ucbvax!phr@ernie.berkeley.edu (Paul Rubin)

>From the Emacs Info file (found by looking for "delete-matching-lines"
in the Command Index):

  File: emacs  Node: Other Repeating Search, Prev: Replace, Up: Search

  Other Search-and-Loop Commands
  ==============================

    Here are some other commands that find matches for a regular expression.
  They all operate from point to the end of the buffer.

  `M-x list-matching-lines'     
       Print each line that follows point and contains a match for the
       specified regexp.  A numeric argument specifies the number of context
       lines to print before and after each matching line; the default is
       none.

  `M-x count-matches'     
       Print the number of matches following point for the specified regexp.

  `M-x delete-non-matching-lines'     
       Delete each line that follows point and does not contain a match for
       the specified regexp.

  `M-x delete-matching-lines'     
       Delete each line that follows point and contains a match for the
       specified regexp.


From: felix!trwrb!trwspp!spp2!urban (Mike Urban)

Easy.  Filter the buffer through a "sed" command.  As with many
Unix techniques, I haven't decided whether this method is wonderfully
elegant, or an awful kludge.  It *is*, however, very useful.  If you
find yourself doing it a lot, you can even have some key bound to a function
that prompts you for the sed command and does the work.

   Mike Urban
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From: Bob Chassell <ccicpg!seismo!harvard!lmi-angel!bob>


The easiest thing to do is write a keyboard macro and then apply it
generally. Look up the online documentation with control-h i, get into
the manual and then look for regexps and for keyboard macros.  (It
looks like there are a lot of nodes in the table of contents for the
manual but you can search for regexp and macro.)  

Bob Chassell




-- 
Mike Wexler
(trwrb|scgvaxd)!felix!peregrine!mike
(714)855-3923