From: Byron Rakitzis <byron@rakitzis.com>
To: fosterd@hartwick.edu, rc@hawkwind.utcs.toronto.edu
Subject: Re: tilde featuritis alert
Date: Fri, 10 Dec 1999 02:45:04 -0500 [thread overview]
Message-ID: <199912100745.XAA29345@peanut.rakitzis.com> (raw)
>It seems to me that a simple rule would suffice here. An '=' in the
>first word of a command is interpreted as a metacharacter. An '=' in
>the rest of it is not. Oh, but there is the issue of 'foo = bar' (I
>find myself trying to do that frequently in sh now.) OK, an unquoted
>'=' is a metacharacter iff (it's part of the first word || it's the
>first character in the second word). That should continue to allow
>'foo =bar' as well.
For better or for worse, rc's grammar allows for multiple temporary
assignments:
; foo=1 bar=2 echo $foo $bar
1 2
; echo $foo $bar
;
So you have to account for that as well.
With sufficient tweaking to the parser and lexer perhaps you could allow
unquoted '='s in a parameter list, but I tried my hand at it years ago
and I wasn't able to come up with anything remotely pleasant.
Byron.
next reply other threads:[~1999-12-10 8:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-12-10 7:45 Byron Rakitzis [this message]
1999-12-10 9:32 ` Gert-Jan Vons
-- strict thread matches above, loose matches on Subject: below --
1999-12-09 7:52 Decklin Foster
1999-12-09 8:26 ` Markus Friedl
1999-12-09 8:52 ` Gert-Jan Vons
1999-12-09 14:20 ` Decklin Foster
1999-12-09 16:48 ` Paul Haahr
1999-12-09 16:27 ` Mark K. Gardner
1999-12-09 22:08 ` kim kubik
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