fixed lock mark

diff --git a/helm/matita/matitaScript.ml b/helm/matita/matitaScript.ml
index af38ff8c2c86589f306cfcdcebb2cf644f12a7ff..d145eec2025dd6f4b247aa17a46d72ecfa647914 100644 (file)
--- a/helm/matita/matitaScript.ml
+++ b/helm/matita/matitaScript.ml
@@ -346,7 +346,6 @@ object (self)
 
   (** goal as seen by the user (i.e. metano corresponding to current tab) *)
   val mutable userGoal = ~-1
-  val mutable lock_mark_pos = 0
 
   (** text mark and tag representing locked part of a script *)
   val locked_mark =
@@ -428,7 +427,6 @@ List.iter (fun s -> prerr_endline ("'" ^ s ^ "'")) new_statements;
     in
     buffer#move_mark mark ~where:new_mark_pos;
     buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos;
-    lock_mark_pos <- new_mark_pos#offset;
     buffer#move_mark `INSERT old_insert;
     begin
      match self#status.proof_status with
@@ -438,7 +436,7 @@ List.iter (fun s -> prerr_endline ("'" ^ s ^ "'")) new_statements;
     while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
 
   method clean_dirty_lock =
-    let lock_mark_iter = buffer#get_iter (`OFFSET lock_mark_pos) in
+    let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in
     buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
     buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter