[H-GEN] Mail program

[Anthony Towns]

On Sun, Jun 27, 2004 at 05:53:29PM +1000, Greg Black wrote:
> On 2004-06-27, Anthony Towns wrote:
> > Pfft, amateurs.
> > 
> >         sed -e ':x;s/^\( *>>*\)\(  *>\)/\1>/;tx;s/^\( *>>*\) */\1 /'
> $ cat bar | sed -e ':x;s/^\( *>>*\)\(  *>\)/\1>/;tx;s/^\( *>>*\) */\1 /' > barbar
> sed: 2: ":x;s/^\( *>>*\)\(  *>\) ...": unused label 'x;s/^\( *>>*\)\(  *>\)/\1>/;tx;s/^\( *>>*\) */\1 /'
> You must be using some funny version of sed ...

*shrug* It's GNU sed 4.0.7. POSIX seems to require labels, and the s/// and t
commands, so the only other problem you could maybe be having seems to be
with the ; separator, which means you might have to do:

  $ sed -e ':x
  s/^\( *>>*\)\(  *>\)/\1>/
  tx
  s/^\( *>>*\) */\1 /'

or

  sed -e ':x' -e 's/^\( *>>*\)\(  *>\)/\1>/' -e 'tx' -e 's/^\( *>>*\) */\1 /'

Though why you'd want tools that force you through those sort of
syntactic contortions when they're tools that just let you use the good
ol' semi-colon is beyond me...

Cheers,
aj

-- 
Anthony Towns <aj at humbug.org.au> <http://azure.humbug.org.au/~aj/>
Don't assume I speak for anyone but myself. GPG signed mail preferred.

``Like the ski resort of girls looking for husbands and husbands looking
  for girls, the situation is not as symmetrical as it might seem.''
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