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 ///////////////////////////////////////////////////////////////////////////
 //  Copyright (C) Wizardry and Steamworks 2016 - License: GNU GPLv3      //
 ///////////////////////////////////////////////////////////////////////////
 //
 // A joke module for Corrade Eggdrop.
 //
 ///////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////
 //    Copyright (C) 2014 Wizardry and Steamworks - License: GNU GPLv3    //
 ///////////////////////////////////////////////////////////////////////////
 string wasKeyValueGet(string k, string data) {
     if(llStringLength(data) == 0) return "";
     if(llStringLength(k) == 0) return "";
     list a = llParseString2List(data, ["&", "="], []);
     integer i = llListFindList(a, [ k ]);
     if(i != -1) return llList2String(a, i+1);
     return "";
+}
 ///////////////////////////////////////////////////////////////////////////
 //    Copyright (C) 2013 Wizardry and Steamworks - License: GNU GPLv3    //
 ///////////////////////////////////////////////////////////////////////////
 string wasKeyValueEncode(list data) {
     list k = llList2ListStrided(data, 0, -1, 2);
     list v = llList2ListStrided(llDeleteSubList(data, 0, 0), 0, -1, 2);
     data = [];
     do {
         data += llList2String(k, 0) + "=" + llList2String(v, 0);
         k = llDeleteSubList(k, 0, 0);
         v = llDeleteSubList(v, 0, 0);
     } while(llGetListLength(k) != 0);
     return llDumpList2String(data, "&");
+}
 ///////////////////////////////////////////////////////////////////////////
 //    Copyright (C) 2011 Wizardry and Steamworks - License: GNU GPLv3    //
 ///////////////////////////////////////////////////////////////////////////
 // http://was.fm/secondlife/wanderer
 vector wasCirclePoint(float radius) {
     float x = llPow(-1, 1 + (integer) llFrand(2)) * llFrand(radius*2);
     float y = llPow(-1, 1 + (integer) llFrand(2)) * llFrand(radius*2);
     if(llPow(x,2) + llPow(y,2) <= llPow(radius,2))
         return <x, y, 0>;
     return wasCirclePoint(radius);
+}
 ///////////////////////////////////////////////////////////////////////////
 //    Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3    //
 ///////////////////////////////////////////////////////////////////////////
 // escapes a string in conformance with RFC1738
 string wasURLEscape(string i) {
     string o = "";
     do {
         string c = llGetSubString(i, 0, 0);
         i = llDeleteSubString(i, 0, 0);
         if(c == "") jump continue;
         if(c == " ") {
             o += "+";
             jump continue;
+        }
         if(c == "\n") {
             o += "%0D" + llEscapeURL(c);
             jump continue;
+        }
         o += llEscapeURL(c);
 @continue;
     } while(i != "");
     return o;
+}
 ///////////////////////////////////////////////////////////////////////////
 //    Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3    //
 ///////////////////////////////////////////////////////////////////////////
 list wasCSVToList(string csv) {
     list l = [];
     list s = [];
     string m = "";
     do {
         string a = llGetSubString(csv, 0, 0);
         csv = llDeleteSubString(csv, 0, 0);
         if(a == ",") {
             if(llList2String(s, -1) != "\"") {
                 l += m;
                 m = "";
                 jump continue;
+            }
             m += a;
             jump continue;
+        }
         if(a == "\"" && llGetSubString(csv, 0, 0) == a) {
             m += a;
             csv = llDeleteSubString(csv, 0, 0);
             jump continue;
+        }
         if(a == "\"") {
             if(llList2String(s, -1) != a) {
                 s += a;
                 jump continue;
+            }
             s = llDeleteSubList(s, -1, -1);
             jump continue;
+        }
         m += a;
 @continue;
     } while(csv != "");
     // postcondition: length(s) = 0
     return l + m;
+}
 ///////////////////////////////////////////////////////////////////////////
 //    Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3    //
 ///////////////////////////////////////////////////////////////////////////
 string wasListToCSV(list l) {
     list v = [];
     do {
         string a = llDumpList2String(
             llParseStringKeepNulls(
                 llList2String(
                     l,
                 ),
                 ["\""],
                 []
             ),
             "\"\""
         );
         if(llParseStringKeepNulls(
             a,
             [" ", ",", "\n", "\""], []
             ) !=
             (list) a
         ) a = "\"" + a + "\"";
         v += a;
         l = llDeleteSubList(l, 0, 0);
     } while(l != []);
     return llDumpList2String(v, ",");
+}
 ///////////////////////////////////////////////////////////////////////////
 //    Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3    //
 ///////////////////////////////////////////////////////////////////////////
 // unescapes a string in conformance with RFC1738
 string wasURLUnescape(string i) {
     return llUnescapeURL(
         llDumpList2String(
             llParseString2List(
                 llDumpList2String(
                     llParseString2List(
                         i,
                         ["+"],
                         []
                     ),
                     " "
                 ),
                 ["%0D%0A"],
                 []
             ),
             "\n"
+        )
     );
+}
 // configuration data
 string configuration = "";
 // callback URL
 string URL = "";
 // store message over state.
 string data = "";
 // Notecard reading.
 key nQuery = NULL_KEY;
-integer nLine = 0;
+string joke = "";
-list nList = [];
+list q = [ ];
+///////////////////////////////////////////////////////////////////////////
+//    Copyright (C) 2011 Wizardry and Steamworks - License: GNU GPLv3    //
+///////////////////////////////////////////////////////////////////////////
+// Requires: a limit.
+// Provides: true random number between [0, max) or (-max, 0].
+//////////////////////////////////////////////////////////
+integer wasFPSrand(integer max) {
+    integer r = (integer)(llGetRegionFPS() * 10000000.0) % max;
+    if(max > 0) return r; else return -r;
+}
 default {
     state_entry() {
         llOwnerSay("[Joke] Starting module...");
         llSetTimerEvent(10);
+    }
     link_message(integer sender, integer num, string message, key id) {
         if(id != "configuration") return;
         llOwnerSay("[Joke] Got configuration...");
         configuration = message;
-        state read_jokes;
+        state count_jokes;
+    }
     timer() {
         llOwnerSay("[Joke] Requesting configuration...");
         llMessageLinked(LINK_THIS, 0, "configuration", NULL_KEY);
+    }
     on_rez(integer num) {
         llResetScript();
+    }
     changed(integer change) {
         if((change & CHANGED_INVENTORY) ||
             (change & CHANGED_REGION_START) ||
             (change & CHANGED_OWNER)) {
             llResetScript();
+        }
+    }
     state_exit() {
         llSetTimerEvent(0);
+    }
+}
-state read_jokes {
+state count_jokes {
+    state_entry() {
+        // Build a list of dataserver queries and retrieve the number of lines.
+        joke = (string)llGetInventoryNumber(INVENTORY_NOTECARD);
-    state_entry() {
+        integer i = (integer)joke - 1;
-        // DEBUG
+        do {
-        llOwnerSay("[Joke] Reading jokes...");
+            string card = llGetInventoryName(INVENTORY_NOTECARD, i);
-        if(llGetInventoryType("Joke") != INVENTORY_NOTECARD) {
+            // Filter notecards containing the "jokes" configuration key value.
+            if(llSubStringIndex(card, wasKeyValueGet("jokes", configuration)) == -1) {
-            llOwnerSay("[Joke] Failed to find a notecard named Joke in the primitive's inventory.");
+                joke = (string)((integer)joke - 1);
-            return;
+                jump continue;
-        }
+            }
+            q = llListInsertList(q, [ llGetNumberOfNotecardLines(card) ], 0);
+@continue;
+        } while(--i >= -1);
-        nQuery = llGetNotecardLine("Joke", nLine);
+        q += NULL_KEY;
+    }
     dataserver(key id, string data) {
-        if(id != nQuery) return;
+        // Find the query in the query list.
-        if(data == EOF) {
+        integer i = llListFindList(q, [ id ]);
+        if(i == -1) return;
+        // Replace the query by the number of notecard lines (lists are covariant).
-            // DEBUG
+        q = llListReplaceList(q, [ (integer) data ], i, i);
+        joke = (string)((integer)joke - 1);
-            llOwnerSay("[Joke] Read jokes...");
+        if((integer)joke == 0)
             state listen_group;
-        }
-        if(data == "") jump continue;
-        nList += data;
-@continue;
-        nQuery = llGetNotecardLine("Joke", ++nLine);
+    }
     on_rez(integer num) {
         llResetScript();
+    }
     changed(integer change) {
         if((change & CHANGED_INVENTORY) ||
             (change & CHANGED_REGION_START) ||
             (change & CHANGED_OWNER)) {
             llResetScript();
+        }
+    }
+}
 state listen_group {
     state_entry() {
         // DEBUG
         llOwnerSay("[Joke] Waiting for group messages...");
+    }
     link_message(integer sender, integer num, string message, key id) {
         // We only care about notifications now.
         if(id != "notification")
             return;
         // This script only processes group notifications.
         if(wasKeyValueGet("type", message) != "group")
             return;
         // Get the sent message.
         data = wasURLUnescape(
             wasKeyValueGet(
                 "message",
                 message
+            )
         );
         // Check if this is an eggdrop command.
         if(llGetSubString(data, 0, 0) !=
             wasKeyValueGet("command", configuration))
             return;
         // Check if the command matches the current module.
-        list command = llParseString2List(data,
+        list command = llParseString2List(data, [" "], []);
-            [wasKeyValueGet("command", configuration), " "], ["@"]);
+        if(llList2String(command, 0) !=
-        if(llList2String(command, 0) != "joke")
+            wasKeyValueGet("command", configuration) + "joke")
             return;
-        list range = wasCSVToList(
+        // Remove command.
-            wasKeyValueGet("roll range", configuration)
+        command = llDeleteSubList(command, 0, 0);
+        state read_joke;
+    }
+    on_rez(integer num) {
+        llResetScript();
+    }
+    changed(integer change) {
+        if((change & CHANGED_INVENTORY) ||
-        );
+            (change & CHANGED_REGION_START) ||
+            (change & CHANGED_OWNER)) {
+            llResetScript();
+        }
+    }
+}
+state read_joke {
+    state_entry() {
+        // DEBUG
+        llOwnerSay("[Joke] Reading a joke...");
+        integer i = llGetInventoryNumber(INVENTORY_NOTECARD) - 1;
+        list c = [];
+        do {
+            string card = llGetInventoryName(INVENTORY_NOTECARD, i);
+            if(llSubStringIndex(card, wasKeyValueGet("jokes", configuration)) == -1)
+                jump continue;
+            c = llListInsertList(c, [ i ], 0);
+@continue;
+        } while(--i >= -1);
+        i = (integer)llFrand(llGetListLength(c));
+        nQuery = llGetNotecardLine(
+            llGetInventoryName(
+                INVENTORY_NOTECARD,
-        data = llList2String(
+                llList2Integer(c, i)
+            ),
-            nList,
+            (integer)
-            (integer)
+                (
+                    llFrand(
+                        llList2Integer(
+                            q,
+                            i
                 llFrand(
                     llGetListLength(nList)
                 )
+        );
+    }
+    dataserver(key id, string data) {
-        );
+        if(id != nQuery) return;
         joke = data;
         state tell;
+    }
     on_rez(integer num) {
         llResetScript();
+    }
     changed(integer change) {
         if((change & CHANGED_INVENTORY) ||
             (change & CHANGED_REGION_START) ||
             (change & CHANGED_OWNER)) {
             llResetScript();
+        }
+    }
+}
 state tell {
     state_entry() {
         // DEBUG
         llOwnerSay("[Joke] Sending to group.");
         llInstantMessage(
             wasKeyValueGet(
                 "corrade",
                 configuration
             ),
             wasKeyValueEncode(
+                [
                     "command", "tell",
                     "group", wasURLEscape(
                         wasKeyValueGet(
                             "group",
                             configuration
+                        )
                     ),
                     "password", wasURLEscape(
                         wasKeyValueGet(
                             "password",
                             configuration
+                        )
                     ),
                     "entity", "group",
-                    "message", wasURLEscape(data)
+                    "message", wasURLEscape(joke)
+                ]
+            )
         );
+        // GC
+        joke = "";
         state listen_group;
+    }
+}