On Fri, Mar 02, 2018 at 05:05:46PM +0100, Harald van Dijk wrote:
>
> But in "${x+${y-}''}", the ' is the literal ' character. In "${x#${y-}''}",
> the ' is a quote character. This part is hard. If the above is done simply
> using another local variable, then the parse of the nested ${y-} would
> clobber that variable.

I don't see why that's hard.  You just need to remember whether
you're in a pattern context (i.e., after a %/%% or #/##).  If you
are, then you need to go back to basesyntax instead of dqsyntax
until the next right brace.

Cheers,
-- 
Email: Herbert Xu <herb...@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe dash" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to