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authorGravatar David Aspinall <da@inf.ed.ac.uk>2007-12-13 12:58:11 +0000
committerGravatar David Aspinall <da@inf.ed.ac.uk>2007-12-13 12:58:11 +0000
commitd64389d34f3494b97c67b7a6094123f1a699040c (patch)
tree67c8fd95283d89a960240200970a9a2b134cb67b /lego
parent44d5bf78ff00eb2d48f111d8d8718aa3b8ad010c (diff)
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--*- mode:outline -*-
-
-* Things to do for LEGO
-
-See also ../todo for generic things to do, priority codes.
-
-** C Improve X-Symbol support.
-
-** D Fix Pbp implementation in LEGO itself (10h)
-
-** D In LEGO, apart from Goal...Save pairs, we have
- declaration...discharge pairs. See the section "Granularity of
- Atomic Commands" for a proposal on how to generalise the current
- implementation so that it can also deal with "Discharge".
- [See also the Coq problem with Sections] (6h)
-
-** D Inoking an "Expand" command produces a new proof state. But this is
- incorrectly displayed in the response buffer and not the goals
- buffer because special annotations are missing. Presumably, one
- ought to replace "Toplevel.Pr()" by "Toplevel.PR()" in the
- definition of "Expand" (see file newtop.sml [Version 1.4]). (30min)
-
-** D Even with the more flexible region model, with
- proof-nested-goals-behaviour=closequick, Proof General doesn't
- do quite the right thing. Forget for a definition when inside
- a proofstate kills off the whole proofstate. Effectively,
- the definition is *global* rather than local to the proofstate,
- and could perhaps be lifted to before the goal
- (with the lift-global nonsense not so daft after all? Editing
- behind the user's back is still objectionable though).
- Another alternative fix would be to trigger some retraction action
- on seeing the "Abort" regexp, rather than assuming it is the result of
- some retraction action. More generally this could be used for error
- handling.
-
-** D Improve legotags. It cannot handle lists e.g., with
- [x,y:nat];
- it only tags x but not y. [The same problem exists for coqtags]
-
-** X Mechanism to save object file. Specifically, after having processed
- a script (interactively), it would be nice if one could now save the
- buffer in object format. At the moment, it only gets converted
- (automatically) when it is read in indirectly at a later stage.
- However, there is currently no LEGO command to do this. [4h]