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-rw-r--r--isa/interface-setup.el5
-rw-r--r--isa/isabelle-system.el7
-rw-r--r--isar/interface-setup.el5
3 files changed, 7 insertions, 10 deletions
diff --git a/isa/interface-setup.el b/isa/interface-setup.el
index 0a3f6b80..7e5ed4e4 100644
--- a/isa/interface-setup.el
+++ b/isa/interface-setup.el
@@ -6,11 +6,6 @@
'isabelle-prog-name
(concat (getenv "ISABELLE") " " (getenv "PROOFGENERAL_LOGIC")))
-(if (string-match "^polyml" (getenv "ML_SYSTEM"))
- (customize-set-variable
- 'proof-shell-pre-interrupt-hook
- (lambda () (proof-shell-insert "f" nil))))
-
(let ((xsym (getenv "PROOFGENERAL_XSYMBOL")))
(cond
((equal xsym "true")
diff --git a/isa/isabelle-system.el b/isa/isabelle-system.el
index bc2209ad..57cd4db6 100644
--- a/isa/isabelle-system.el
+++ b/isa/isabelle-system.el
@@ -182,6 +182,13 @@ Called with one argument: t to save database, nil otherwise."
(isa-insert-ret "quit();"))
(comint-send-eof))
+;;; Set proof-shell-pre-interrupt-hook for PolyML.
+(if (and
+ (not proof-shell-pre-interrupt-hook)
+ (string-match "^polyml" (isa-getenv "ML_SYSTEM")))
+ (add-hook
+ 'proof-shell-pre-interrupt-hook
+ (lambda () (proof-shell-insert "f" nil))))
;;; ========== Utility functions ==========
diff --git a/isar/interface-setup.el b/isar/interface-setup.el
index 76f4f09e..9fdaba2b 100644
--- a/isar/interface-setup.el
+++ b/isar/interface-setup.el
@@ -6,11 +6,6 @@
'isabelle-isar-prog-name
(concat (getenv "ISABELLE") " " (getenv "PROOFGENERAL_LOGIC")))
-(if (string-match "^polyml" (getenv "ML_SYSTEM"))
- (customize-set-variable
- 'proof-shell-pre-interrupt-hook
- (lambda () (proof-shell-insert (isar-verbatim "f") nil))))
-
(let ((xsym (getenv "PROOFGENERAL_XSYMBOL")))
(cond
((equal xsym "true")