Ralf Wildenhues wrote:
> * Dave Korn wrote on Wed, Aug 26, 2009 at 12:38:50PM CEST:
>> Ralf, have we discovered a new item for the autoconf man page "portable
>> shell"
>> chapter?
>
> Not really:
>
> Patterns should not include the separator (unless escaped), even
> as part of a character class. In conformance with Posix, the Cray
> `sed' rejects `s/[^/]*$//': use `s,[^/]*$,,'.
> [...]
> Portable `sed' regular expressions should use `\' only to escape
> characters in the string `$()*.0123456789[\^n{}'.
Ah, I didn't read those two conditions as applying simultaneously. Since
the second condition essentially says that you must only ever escape a special
character to make it non-meaningful or a normal character to make it special,
maybe the first condition say something a bit more like ...
> Patterns should not include the separator (not even escaped, unless
> you fancy having to use a semantically significant metacharacter for
> your separator), even as part of a ...
... shouldn't it?
> Sorry for not catching this.
NP, all fixed now :)
cheers,
DaveK
