GNU bug report logs - #49623
Guile 3.0.7 can't read #{{}}#

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Maxime Devos <maximedevos <at> telenet.be>
To: bug-guile <at> gnu.org
Subject: Guile 3.0.7 can't read #{{}}#
Date: Sun, 18 Jul 2021 18:41:50 +0200

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Hi,

A scheme library I'm working on now fails to compile
after switching from 3.0.2 to Guile 3.0.7.  The issue
is that Guile can't read #{{}}# anymore.

In guile 3.0.7:

scheme@(guile-user)> '#{{}}# }#
$1 = #{\x7b;\x7d;# }# ; the }# should result in a syntax error
scheme@(guile-user)> '#{{}}# ; this should work
...
; ^ guile is waiting for input

In guile 3.0.2:
scheme@(guile-user)> '#{{}}#
$1 = #{\x7b;\x7d;}# ; ok!

(Yes, I really name my variables like that sometimes.)

Note that #{{}a}# can be read just fine by both guile versions.

Greetings,
Maxime.

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Message #8 received at 49623 <at> debbugs.gnu.org (full text, mbox):

From: Maxime Devos <maximedevos <at> telenet.be>
To: guile-patches <at> gnu.org
Cc: 49623 <at> debbugs.gnu.org
Subject: [PATCH] Parse #{{}}# properly.
Date: Sun, 18 Jul 2021 20:16:35 +0200

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Hi guilers,

This fixes bug #49623.  I also added two additional test cases.
I'm rebuilding Guile right now and will re-run the entire test suite,
and I'll build the affected guile library with the fixed guile.

Greetings,
Maxime.

[0001-ice-9-read-Parse-properly.patch (text/x-patch, attachment)]

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Message #11 received at 49623 <at> debbugs.gnu.org (full text, mbox):

From: Maxime Devos <maximedevos <at> telenet.be>
To: guile-devel <at> gnu.org
Cc: 49623 <at> debbugs.gnu.org
Subject: Re: Fwd: [PATCH] Parse #{{}}# properly.
Date: Sun, 18 Jul 2021 21:47:54 +0200

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It turns out that the test fails when the patch
is applies to guile <at> 3.0.7.  I'll rebase and try
to figure things out.

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Message #14 received at 49623 <at> debbugs.gnu.org (full text, mbox):

From: Maxime Devos <maximedevos <at> telenet.be>
To: guile-devel <at> gnu.org
Cc: 49623 <at> debbugs.gnu.org
Subject: [PATCH v2] Parse #{{}}# properly.
Date: Tue, 20 Jul 2021 12:54:46 +0200

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Maxime Devos schreef op zo 18-07-2021 om 21:47 [+0200]:
> It turns out that the test fails when the patch
> is applies to guile <at> 3.0.7.  I'll rebase and try
> to figure things out.

With the revised patch, tests succeed and the Guile
library now compiles successfully.

Greetings,
Maxime.

[0001-ice-9-read-Parse-properly.patch (text/x-patch, attachment)]

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Message #19 received at 49623-done <at> debbugs.gnu.org (full text, mbox):

From: lloda <lloda <at> sarc.name>
To: Maxime Devos <maximedevos <at> telenet.be>
Cc: 49623-done <at> debbugs.gnu.org, guile-devel <guile-devel <at> gnu.org>
Subject: Re: [PATCH v2] Parse #{{}}# properly.
Date: Mon, 2 Aug 2021 18:37:40 +0200

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Applied in c78c130b1ddef6d6c290533f74ce1fbd51a4b19d. Thank you!


> On 20 Jul 2021, at 12:54, Maxime Devos <maximedevos <at> telenet.be> wrote:
> 
> Maxime Devos schreef op zo 18-07-2021 om 21:47 [+0200]:
>> It turns out that the test fails when the patch
>> is applies to guile <at> 3.0.7.  I'll rebase and try
>> to figure things out.
> 
> With the revised patch, tests succeed and the Guile
> library now compiles successfully.
> 
> Greetings,
> Maxime.

[0001-ice-9-read-Parse-properly.patch (text/x-patch, attachment)]

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