From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Tue, 13 Jul 2010 14:47:05 -0400
To: 9fans@9fans.net
Message-ID: <fd60cac65e9e4df14e416533f5b7f38e@brasstown.quanstro.net>
In-Reply-To: <AANLkTinMrkIBafWVXrlLQmo5lPPRmq-IEqNoyNX-5MIo@mail.gmail.com>
References: <AANLkTil4cAbJUFnGfnkVuOamXTaRcs-BfQjNQXPYV2qE@mail.gmail.com>
	<136f4778140ad5331b980f5d45eff3c5@coraid.com>
	<AANLkTimt-N7AHo_3d9sOnHKH-dpDNsD_H0ZzogJ8_EB5@mail.gmail.com>
	<b5d8f679ca37f573d37735ce19235184@coraid.com>
	<AANLkTinMrkIBafWVXrlLQmo5lPPRmq-IEqNoyNX-5MIo@mail.gmail.com>
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Subject: Re: [9fans] regexp doubt
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On Tue Jul 13 14:40:02 EDT 2010, rsc@swtch.com wrote:
> I think you have found a real bug.
>
> I created a new window containing
>
>    x x+ x- xy
>
> and I executed Edit ,x/x[ +\-]/d
> and sure enough it doesn't delete x-.

this really does work for me at coraid, but not at home.
the only difference i see is the fact that at coraid, 16-bit
runes are used, while i am using 32-bit runes.

/n/coraid//sys/src/cmd/acme/regx.c:487,493 - regx.c:487,493
  			exprp++;	/* eat '-' */
  			if((c2 = nextrec()) == ']')
  				goto Error;
- 			classp[n+0] = 0xFFFF;
+ 			classp[n+0] = Runemax;
  			classp[n+1] = c1;
  			classp[n+2] = c2;
  			n += 3;

- erik