From makarius at sketis.net  Sat Aug  1 15:32:29 2026
From: makarius at sketis.net (Makarius)
Date: Sat, 1 Aug 2026 15:32:29 +0200
Subject: Printing of dummy terms in syntax translations
In-Reply-To: <66c78c92-a3fd-4e67-ad8e-52abef215f93@in.tum.de>
References: <66c78c92-a3fd-4e67-ad8e-52abef215f93@in.tum.de>
Message-ID: <f9e1fe34-4fb0-449a-a0df-e789fc74e935@sketis.net>

On 07/07/2026 13:09, Lukas Stevens wrote:
> 
> I am working on the type annotation algorithm in ~~/src/HOL/Tools/ 
> Sledgehammer/sledgehammer_isar_annotate.ML that is used by some interactive 
> tools, e.g., Sledgehammer and Sketch and Explore.
> 
> While testing the algorithm, I ran into some unfortunate behavior that results 
> from the interaction of Syntax_Trans.atomic_abs_tr' and the syntax translation 
> case_prod_tr'/case_prod_guess_names_tr' in Product_Type.thy.
This is still open. I will take a brief look before we head to the 
Isabelle2026 release, to see if it is to be addressed before or after the release.

After the release I would like to absorb all previous attempts to print terms 
for re-parsing into Isabelle/Pure, such that becomes part of the regular 
functionality.


	Makarius


From adbrucker at 0x5f.org  Thu Aug 27 11:32:04 2026
From: adbrucker at 0x5f.org (Achim D. Brucker)
Date: Thu, 27 Aug 2026 10:32:04 +0100
Subject: Changed behaviour of (*<*) ... (*>*)
Message-ID: <5a16031b-435d-4ddb-9d76-872d96cd769c@0x5f.org>

Hi,

While trying to address a build failure of one of our AFP entries, I 
spotted  (*<*) ... (*>*) does not seem to exclude parts from being 
included in the generated LaTeX/PDF document. For instance, generating a 
PDF from the the theory

theory Ex imports Main begin
(*<*)text\<open>Should this be included in the generated PDF?\<close>(*>*)
end

does not include the text "Should this be included in the generated 
PDF?" in the generated PDF when using Isabelle 2025-2 but is included 
when using the latest version from the repository (TIP: 
85327:dc45b445012a).

By quickly skimming over the NEWS entries an the hg log messages, I 
could not find out whether this is intentional or not.

I would appreciate any advise on how I should upgrade my theories to 
make them ready for the future.

Thanks a lot!


Best,

Achim