* Serching for pattern down one column
@ 2008-11-25 0:59 ingvar
2008-11-25 13:54 ` Paul R
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: ingvar @ 2008-11-25 0:59 UTC (permalink / raw
To: Help-gnu-emacs
I have a file with binary numbers in colums. Is there any way in emacs to
search for a specific pattern in a column? For example I have the file with
the following:
1 0 0 1
1 1 0 0
0 1 1 1
1 1 1 1
0 0 1 0
0 0 0 0
I now want to search for the pattern "111" in a column (it should find the
pattern in column 2 rows 2-4 and column 3 rows 3-5). Does anyone know how to
do it?
--
View this message in context: http://www.nabble.com/Serching-for-pattern-down-one-column-tp20673287p20673287.html
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* Re: Serching for pattern down one column
[not found] <mailman.1210.1227616965.26697.help-gnu-emacs@gnu.org>
@ 2008-11-25 13:47 ` aartist
0 siblings, 0 replies; 5+ messages in thread
From: aartist @ 2008-11-25 13:47 UTC (permalink / raw
To: help-gnu-emacs
On Nov 24, 7:59 pm, ingvar <ing...@nanosi.com> wrote:
> I have a file with binary numbers in colums. Is there any way in emacs to
> search for a specific pattern in a column? For example I have the file with
> the following:
>
> 1 0 0 1
> 1 1 0 0
> 0 1 1 1
> 1 1 1 1
> 0 0 1 0
> 0 0 0 0
>
> I now want to search for the pattern "111" in a column (it should find the
> pattern in column 2 rows 2-4 and column 3 rows 3-5). Does anyone know how to
> do it?
>
> --
> View this message in context:http://www.nabble.com/Serching-for-pattern-down-one-column-tp20673287...
> Sent from the Emacs - Help mailing list archive at Nabble.com.
Consider converting columns into rows and search via regexp.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Serching for pattern down one column
2008-11-25 0:59 Serching for pattern down one column ingvar
@ 2008-11-25 13:54 ` Paul R
2008-11-25 15:43 ` Peter Dyballa
[not found] ` <mailman.1221.1227627817.26697.help-gnu-emacs@gnu.org>
2 siblings, 0 replies; 5+ messages in thread
From: Paul R @ 2008-11-25 13:54 UTC (permalink / raw
To: ingvar; +Cc: Help-gnu-emacs
ingvar> I now want to search for the pattern "111" in a column (it
ingvar> should find the pattern in column 2 rows 2-4 and column 3 rows
ingvar> 3-5). Does anyone know how to do it?
In this particular case I'd first transpose then use classic row-based
facilities.
--
Paul
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Serching for pattern down one column
2008-11-25 0:59 Serching for pattern down one column ingvar
2008-11-25 13:54 ` Paul R
@ 2008-11-25 15:43 ` Peter Dyballa
[not found] ` <mailman.1221.1227627817.26697.help-gnu-emacs@gnu.org>
2 siblings, 0 replies; 5+ messages in thread
From: Peter Dyballa @ 2008-11-25 15:43 UTC (permalink / raw
To: ingvar; +Cc: Help-gnu-emacs
Am 25.11.2008 um 01:59 schrieb ingvar:
> I now want to search for the pattern "111" in a column (it should
> find the
> pattern in column 2 rows 2-4 and column 3 rows 3-5). Does anyone
> know how to
> do it?
I think it's *not* possible to write *one* regular expression to find
the occurrence in *any* column, though it's possible to write n
regexps to find the occurrence in exactly one of the n columns.
--
Greetings
Pete
A lot of us are working harder than we want, at things we don't like
to do. Why? ...In order to afford the sort of existence we don't care
to live.
– Bradford Angier
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Serching for pattern down one column
[not found] ` <mailman.1221.1227627817.26697.help-gnu-emacs@gnu.org>
@ 2008-11-25 16:29 ` Chris McMahan
0 siblings, 0 replies; 5+ messages in thread
From: Chris McMahan @ 2008-11-25 16:29 UTC (permalink / raw
To: help-gnu-emacs
Peter Dyballa <Peter_Dyballa@Web.DE> writes:
> Am 25.11.2008 um 01:59 schrieb ingvar:
>
>> I now want to search for the pattern "111" in a column (it should
>> find the
>> pattern in column 2 rows 2-4 and column 3 rows 3-5). Does anyone
>> know how to
>> do it?
>
>
> I think it's *not* possible to write *one* regular expression to find
> the occurrence in *any* column, though it's possible to write n
> regexps to find the occurrence in exactly one of the n columns.
>
> --
> Greetings
>
> Pete
>
> A lot of us are working harder than we want, at things we don't like
> to do. Why? ...In order to afford the sort of existence we don't care
> to live.
> – Bradford Angier
How about a simple lisp function that would query the user for the
column (or take it from the current cursor position) and plug that into
a regexp to search?
- chris
--
(. .)
=ooO=(_)=Ooo=====================================
Chris McMahan | first_initiallastname@one.dot.net
=================================================
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2008-11-25 0:59 Serching for pattern down one column ingvar
2008-11-25 13:54 ` Paul R
2008-11-25 15:43 ` Peter Dyballa
[not found] ` <mailman.1221.1227627817.26697.help-gnu-emacs@gnu.org>
2008-11-25 16:29 ` Chris McMahan
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2008-11-25 13:47 ` aartist
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