Misc js projects

misc/jsdump.js

@@ -0,0 +1,32 @@
+
+function pad(n, ch) { var ch = ch || " "; var result = ""; while (n-- > 0) result += ch; return result; }
+
+function dump(obj, stack)
+{
+    if (!stack)
+        stack = [];
+
+    stack.push(obj);
+    for (var i in obj)
+    {
+        if (typeof obj[i] == "object")
+        {
+            var loop = -1;
+            for (var j = 0; j < stack.length; j++) {
+                if (stack[j] === obj[i]) {
+                    loop = j;
+                    break;
+                }
+            }
+            if (loop < 0) {
+                print(pad(stack.length) + i + " => ");
+                dump(obj[i], stack)
+            } else {
+                print(pad(stack.length) + i + " => [LOOP DETECTED] " + loop);
+            }
+        }
+        else
+            print((pad(stack.length) + i + " => " + obj[i]).substring(0,100).replace(/\n/g, " "));
+    }
+    stack.pop();
+}

misc/optimize_regex.js

@@ -0,0 +1,33 @@
+// Takes in an array of strings, returns a regex that matches any of the input strings
+function optimizedRegex(list)
+{
+    var buckets = {};
+    var optional = false;
+
+    for (var i = 0; i < list.length; i++)
+    {
+        var str = list[i];
+        if (!str)
+            optional = true;
+        else
+        {
+            var prefix = str.substring(0, 1);
+            if (!buckets[prefix])
+                buckets[prefix] = [];
+            buckets[prefix].push(str.substring(1))
+        }
+    }
+
+    var ptrns = [];
+    for (var prefix in buckets)
+        ptrns.push(prefix + optimizedRegex(buckets[prefix]));
+
+    if (ptrns.length == 0)
+        return "";
+    if (optional)
+        return "(" + ptrns.join("|") + ")?"
+    else if (ptrns.length > 1)
+        return "(" + ptrns.join("|") + ")"
+    else
+        return ptrns[0];
+}

misc/youtube-fullscreen-bookmarklet.js

@@ -0,0 +1,16 @@
+var os = document.getElementsByTagName("object");
+for (var i = 0; i < os.length; i++)
+{
+	var o = os[i].cloneNode(true);
+	o.innerHTML = '<param name="allowFullScreen" value="true"></param>' + o.innerHTML;
+    for (var j = 0; j < o.childNodes.length; j++)
+    {
+        if (o.childNodes[j].name == "movie")
+            o.childNodes[j].value += "&fs=1";
+        else if (o.childNodes[j].nodeName.toUpperCase() == "EMBED") {
+            o.childNodes[j].src += "&fs=1";
+            o.childNodes[j].setAttribute("allowfullscreen", "true");
+        }
+    }
+	os[i].parentNode.replaceChild(o, os[i]);
+}