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Re: improve substr

From: Jack Woehr
Subject: Re: improve substr
Date: Wed, 24 Dec 2008 21:56:56 -0700
User-agent: Thunderbird (X11/20080921)

Eric Blake wrote:
Hash: SHA1

According to Jack Woehr on 12/24/2008 7:14 PM:
Eric Blake wrote:
Again, implementing this natively will be more efficient.  What do you
think of adding these two enhancements to substr?
I think anything you want to do is okay as long as it is a perfect
superset of the existing behavior. m4 goes back to the mid-1970's
and we shouldn't break existing code. Especially not mine! :)

It's doubtful that any portable m4 scripts were relying on traditional

Agreed. Certainly not any of mine!

  `ifelse(eval($2 < 0 || $3-0 < 0), 1, `',

You're the wiz!

Don't work too hard, make some time for fun as well!

So why are we both on the computer network tonite? :)

Jack J. Woehr            # Fate lessons of the past and present
http://www.well.com/~jax # were now in session.
http://www.softwoehr.com #  - Steven Wright, _The Beach_

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