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Re: Issue with AS_TR_CPP, m4_cr_all and EBCDIC codeset
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From: |
Eric Blake |
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Subject: |
Re: Issue with AS_TR_CPP, m4_cr_all and EBCDIC codeset |
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Date: |
Wed, 07 Apr 2010 06:55:00 -0600 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.0.4-1.fc12 Lightning/1.0b1 Thunderbird/3.0.4 |
On 04/06/2010 11:02 PM, Ralf Wildenhues wrote:
> Hello,
>
> * Eric Blake wrote on Sat, Apr 03, 2010 at 01:32:45AM CEST:
>> + Fix m4_cr_all for EBCDIC.
>> + * lib/m4sugar/m4sugar.m4 (m4_cr_all): Swap * and $, so that we
>> + don't end up with $* in EBCDIC.
>> + Reported by Steve Goetze.
>
> thanks for working on this!
>
>> m4_define([m4_cr_all],
>> m4_translit(m4_dquote(m4_format(m4_dquote(m4_for(
>> - ,1,255,,[[%c]]))m4_for([i],1,255,,[,i]))), [-])-)
>> + ,1,255,,[[%c]]))m4_for([i],1,255,,[,i]))), [$*-], [*$])-)
>
> Reading the patch, I wonder why the $* in the second argument to
> m4_translit does not ever get expanded to something undesirable?
Because it is at the top level. That is, we are NOT inside any
m4_define/AC_DEFUN, but this is being parsed immediately by m4. $* only
expands into arguments when you are expanding a defined macro that has
arguments.
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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