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Re: m4 changequote bug

From: Eric Blake
Subject: Re: m4 changequote bug
Date: Thu, 19 Nov 2009 06:12:38 -0700
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According to Eric Blake on 11/19/2009 6:06 AM:
> According to Josef Vukovic on 11/18/2009 10:26 PM:
>> Hello,
>> I am searching for an old m4 version which have the Bug regarding
>> changequote:
>> define(foo,000)
>> changquote(<QUOTE>,<UNQUOTE>)

Typo.  You meant changequote.

>> define(baz,defn(<QUOTE>foo<UNQUOTE>))

But even given the typo, you do not have unterminated input.

>> should produce the error: m4: End of Input 0: fatal error: EOF in string

By the way, the message you claim should print is definitely from GNU m4
vintage.  I did check that at least m4-1.4.4 states EOF in string, but not
exactly in that formatting, while m4-1.4.6 spells it out as "end of file
in string".  Also, as a note of portability, POSIX says changequote is
only portable for delimiters up to 5 bytes in length (and, for example,
Solaris m4 does not accept your example).

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

Eric Blake             address@hidden
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