From 5c3ebac1e8d67f2124d4cbae86134d2a68e2900e Mon Sep 17 00:00:00 2001
From: Pierre Courtieu
Date: Wed, 27 May 2020 19:53:05 +0200
Subject: New hook for early prompt/output analyzis.

proof-state-change-pre-hook happens earlier than
proof-state-change-hook, i.e. before proof-done-advancing. This should
be used to register information in the currently processed span before
proof-done-advancing classifies it.

Historically PG design was to gather these information during
proof-done-advancing (or in its hook called at the end) by just
looking at the command statement. But it is often useful to look at
the output (messages and/or prompt) to gather more accurate
information. Some of this information may be needed DURING
proof-done-advancing. Hence this early hook.
---
 generic/proof-script.el | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'generic/proof-script.el')

diff --git a/generic/proof-script.el b/generic/proof-script.el
index 761a3bbe..a5109be7 100644
--- a/generic/proof-script.el
+++ b/generic/proof-script.el
@@ -1382,6 +1382,8 @@ Argument SPAN has just been processed."
     (if (span-live-p proof-queue-span)
 	(proof-set-queue-start end))
 
+    (run-hooks 'proof-state-change-pre-hook)
+
     (cond
      ;; CASE 1: Comments just get highlighted
      ((eq (span-property span 'type) 'comment)
@@ -2120,6 +2122,7 @@ which is true for some proof assistants (but probably not others)."
 	(span-delete span)
 	(if killfn (funcall killfn start end))))
   ;; State of scripting may have changed now
+  (run-hooks 'proof-state-change-pre-hook)
   (run-hooks 'proof-state-change-hook))
 
 (defun proof-setup-retract-action (start end proof-commands remove-action &optional
-- 
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