From 5f77e1e13cefdec315aca23aa7f68f322d7571e6 Mon Sep 17 00:00:00 2001
From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Sat, 15 Apr 2006 16:57:24 +0000
Subject: [PATCH] Patch to avoid double execution of whelp queries reverted
 (since it seems that queries are NOT executed twice without the patch (!?!)
 and with the patch the query is sometimes not executed).

---
 matita/matitaMathView.ml | 32 ++++++++++++--------------------
 1 file changed, 12 insertions(+), 20 deletions(-)

diff --git a/matita/matitaMathView.ml b/matita/matitaMathView.ml
index 1e5cb16a8..44be731de 100644
--- a/matita/matitaMathView.ml
+++ b/matita/matitaMathView.ml
@@ -772,7 +772,6 @@ class cicBrowser_impl ~(history:MatitaTypes.mathViewer_entry MatitaMisc.history)
   let whelp_query_RE = Pcre.regexp
     "^\\s*whelp\\s+([^\\s]+)\\s+(\"|\\()(.*)(\\)|\")$" 
   in
-  let do_not_execute_whelp_query = ref false in
   let is_whelp txt = Pcre.pmatch ~rex:whelp_RE txt in
   let is_uri txt = Pcre.pmatch ~rex:uri_RE txt in
   let is_dir txt = Pcre.pmatch ~rex:dir_RE txt in
@@ -788,7 +787,6 @@ class cicBrowser_impl ~(history:MatitaTypes.mathViewer_entry MatitaMisc.history)
       | _::tl -> aux (i+1) tl
     in
     win#queryInputText#set_text input;
-    do_not_execute_whelp_query:=true;
     combo#set_active (aux 0 queries);
   in
   let set_whelp_query txt =
@@ -832,24 +830,18 @@ class cicBrowser_impl ~(history:MatitaTypes.mathViewer_entry MatitaMisc.history)
       activate_combo_query "" "locate";
       win#whelpBarComboVbox#add combo#coerce;
       let start_query () = 
-        if !do_not_execute_whelp_query then
-          do_not_execute_whelp_query := false
-        else
-          begin
-          let query = 
-            try
-              String.lowercase (List.nth queries combo#active) 
-            with Not_found -> assert false
-          in
-          let input = win#queryInputText#text in
-          let statement = 
-            if query = "locate" then
-                "whelp " ^ query ^ " \"" ^ input ^ "\"." 
-              else
-                "whelp " ^ query ^ " (" ^ input ^ ")." 
-          in
-          (MatitaScript.current ())#advance ~statement ()
-          end
+       let query = 
+         try
+           String.lowercase (List.nth queries combo#active) 
+         with Not_found -> assert false in
+       let input = win#queryInputText#text in
+       let statement = 
+         if query = "locate" then
+             "whelp " ^ query ^ " \"" ^ input ^ "\"." 
+           else
+             "whelp " ^ query ^ " (" ^ input ^ ")." 
+       in
+        (MatitaScript.current ())#advance ~statement ()
       in
       ignore(win#queryInputText#connect#activate ~callback:start_query);
       ignore(combo#connect#changed ~callback:start_query);
-- 
2.39.2