Custom Query (361 matches)

Dear Proof General developers,

In Coq, the identity tactic, idtac, is also used to print its arguments, for example, for debugging purposes. However, I don't see the output of idtac either in the *goals* or in the *response* buffer.

For example, I don't see any output after executing the following script:

Goal True.
idtac "Hello!".

Is there a way to correct this?

Thank you, Yeveniy Makarov

Emacs  : GNU Emacs 21.4.1 (i386-redhat-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2006-03-07 on hs20-bc1-6.build.redhat.com
Package: Proof General

current state:
==============
(setq
 proof-general-version "Proof General Version 3.6pre061027. Released by da."
 proof-assistant "Coq"
 )

The options "Search Rewrite ..." and "Search About ..." do not work in the pre-release (ProofGeneral-3.7pre070312)

To fix the problem I had to patch the file coq.el. I include the corrected version.

In coq, when doing large proofs, the goals window tends to not be centered on the right information: it only shows the oldest assumptions, and when the list of assumption is too long, it does not even show the statement of the first goal.

I suggest centering on bar of equal signs that separates the most recent hypotheses from the current goal. I did it by modifying two files: proof-utils.el and pg-goals.el

While I think that the modification on proof-utils.el can be shared with other proof systems (I only add the possibility that the target point could be given by a string that will be searched in the buffer), the change done on pg-goals.el is coq-specific and should not be left there, but I could not find how to make the code customizable in this respect.

So this is a suggestion for modification, but this should be reviewed to make it more generic in its approach.