Stream: Archive Mirror: Isabelle Users Mailing List

Topic: [isabelle] Eisbach: Method command: Documentation text


view this post on Zulip Email Gateway (Aug 22 2022 at 11:09):

From: Peter Lammich <lammich@in.tum.de>
Hi,

In Isabelle, each method also comes with a short documentation text.
Is there a way to attach such a documentation text to methods defined
via Eisbach, or is the feature of having a short documentation text for
methods considered deprecated?

view this post on Zulip Email Gateway (Aug 22 2022 at 11:10):

From: Daniel Matichuk <daniel.matichuk@nicta.com.au>
Hi Peter,

There is currently no way to add documentation text to Eisbach methods. I don't think the feature is considered deprecated, it was just overlooked for the first release.
I believe the canonical syntax for this is simply an optional string at the end of the declaration (e.g. named_theorems). I'll look into it.

Regards,
Dan


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view this post on Zulip Email Gateway (Aug 22 2022 at 12:29):

From: Makarius <makarius@sketis.net>
I had a very brief look. There is a syntax problem that prevents to
follow the canonical form: the method body consists of "args" without
requiring delimeters. E.g. it is possible to define

method a = rule refl

A post-fix description does not fit into that model: it is unclear where
the method expression ends and the description starts.

Even a stricter method body that demands parentheses would render the
syntax somewhat fragile, e.g. unclear errors with partial input.

I am unsure about the practical relevance of that. Descriptions are only
available in rare situations, mainly historical accidents that were
propagated from the original attribute and method concepts.

Makarius


Last updated: Nov 21 2024 at 12:39 UTC