Re: sed --posix does not catch incomplete arguments

[Ralf Wildenhues]

Hello Bruno,

* Bruno Haible wrote on Fri, Jun 11, 2010 at 09:41:27PM CEST:
> Quoting <http://www.opengroup.org/onlinepubs/9699919799/utilities/sed.html>:
>   "-e  script
>                Add the editing commands specified by the script
>                option-argument to the end of the script of editing commands.
>                The script option-argument shall have the same properties as
>                the script operand, described in the OPERANDS section."
> 
> Since "sed '1{'" is invalid
> 
>   $ sed '1{'
>   sed: -e expression #1, char 0: unmatched `{'
>   $ sed --posix '1{'
>   sed: -e expression #1, char 0: unmatched `{'
> 
> passing the script '1{' to option -e is also invalid.

Ouch.  That would be a problem, because not splitting brace arguments to
multiple -e options (or introducing embedded newlines) is not portable
to some non-GNU seds.  IIRC.  I'll check.  GNU software uses this in
a few cases, esp. in makefiles of course.

Cheers,
Ralf