From: roger peppe <rogpeppe@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] awk help; not plan9 matter
Date: Thu, 17 Sep 2009 15:45:27 +0100 [thread overview]
Message-ID: <df49a7370909170745y44067b1l9348d00455af4009@mail.gmail.com> (raw)
In-Reply-To: <56a297000909170716q6f2fe75dqf2abfbf89cb20265@mail.gmail.com>
another approach, build up a regexp and use that:
fn changefield {
n = $1
repl = $2
s=')([^ ]+)(.*)'
for(i in `{seq 1 `{echo $n 1 -p | dc}}){
s='[^ ]+[ ]+'^$s
}
s='('^$s
sed 's/'^$s^'/\1'^$repl^'\3/'
}
(N.B. if the replacement string
might contain / or \, those characters would need
quoting)
next prev parent reply other threads:[~2009-09-17 14:45 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-17 8:23 Rudolf Sykora
2009-09-17 8:37 ` matt
2009-09-17 8:52 ` Rudolf Sykora
2009-09-17 9:04 ` matt
2009-09-17 9:12 ` Rudolf Sykora
2009-09-17 10:42 ` Rudolf Sykora
2009-09-17 12:35 ` yy
2009-09-17 12:55 ` Rudolf Sykora
2009-09-17 15:51 ` Lyndon Nerenberg - VE6BBM/VE7TFX
2009-09-17 16:02 ` erik quanstrom
2009-09-17 16:20 ` roger peppe
2009-09-17 16:55 ` Rudolf Sykora
2009-09-17 17:04 ` erik quanstrom
2009-09-17 17:10 ` erik quanstrom
2009-09-17 17:19 ` Rudolf Sykora
2009-09-17 17:34 ` roger peppe
2009-09-17 20:33 ` Rudolf Sykora
2009-09-17 20:46 ` erik quanstrom
2009-09-17 21:09 ` Rudolf Sykora
2009-09-17 21:22 ` Rudolf Sykora
2009-09-17 21:24 ` erik quanstrom
2009-09-17 14:16 ` Noah Evans
2009-09-17 14:45 ` roger peppe [this message]
2009-09-17 17:03 ` Rudolf Sykora
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