Re: Font lock bug in sh-script.el

[Daniel Pfeiffer <occitan@esperanto.org>]

Hi Richard,

Richard Stallman <rms@gnu.org> skribis:
> This shell script

>  svrmgrl <<        EOF
>      CONNECT INTERNAL
>      STARTUP
>      EXIT
>         EOF
> 
>  while
>  # foo

> seems to confuse sh-script.el's font lock support.
> All the text following the first line is treated as a here-document.

That is correct!  Only in the first column does EOF have it's special meaning.

> Note that all the spaces in this test case are ordinary spaces.
> (Someone else reported a bug involving non-breaking spaces.)

Yes, he sent it to me first, and I asked him to send it to the bug list, since I no longer use shell (Perl instead :-).

Anyways, those non-breaking spaces are pretty whacky.  While they work in both bash and pdksh, neither documents what that EOF may look like.  The bash manual calls it a word, so accepting nbsp`s here is almost a bash bug.

As long as there is no specification, all you could do is trial and error, to find the common subset of characters accepted by all shells, or differentiate for each one.  In the latter case I guess you'd be fighting with differences between various commercial ksh`s...

coralament / best Grötens / liebe Grüße / best regards / elkorajn salutojn
Daniel Pfeiffer

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