<html>
<head>
<script>
function print(message)
{
var block = document.createElement("div");
block.appendChild(document.createTextNode(message));
block.appendChild(document.createElement("br"));
document.getElementById("console").appendChild(block);
}
function isReadOnly(object, property)
{
var oldValue = object[property];
object[property] = !object[property];
var result = (object[property] == oldValue);
object[property] = oldValue;
return result;
}
function printPropertiesWithReadOnly(object)
{
var array = new Array;
for (var property in object) {
array.push(property);
}
array.sort();
for (var i = 0; i < array.length; i++) {
var property = array[i];
print(property + ": {" + object[property] + "} " + (isReadOnly(object, property) ? "(read-only)" : "(read-write)"));
}
}
function printProperties(object)
{
var array = new Array;
for (var property in object) {
array.push(property);
}
array.sort();
for (var i = 0; i < array.length; i++) {
var property = array[i];
print(property + ": {" + object[property] + "}");
}
}
function test() {
if (window.testRunner)
testRunner.dumpAsText();
print("Properties of RegExp at startup:");
printPropertiesWithReadOnly(RegExp);
var r = /(1)(2)(3)(4)(5)(6)(7)(8)(9)(0)/;
var matchingString = "<1234567890>";
var unmatchingString = "XXX";
var dummyRegExp = new RegExp();
var dummyString = "";
print("");
r.exec(matchingString);
print("Properties of RegExp after " + r + ".exec(" + matchingString + "):");
printProperties(RegExp);
print("");
print("RegExp.$0 " + (RegExp.$0 ? "exists" : "does not exist"));
print("RegExp.$10 " + (RegExp.$10 ? "exists" : "does not exist"));
print("RegExp " + (r.test() ? "uses" : "doesn't use") + " RegExp.input");
RegExp.multiline = "foo";
print("RegExp.multiline " + (typeof RegExp.multiline == typeof Boolean() ? "coerces" : "doesn't coerce") + " values to booleans");
RegExp.input = Number();
print("RegExp.input " + (typeof RegExp.input == typeof String() ? "coerces" : "doesn't coerce") + " values to strings");
print("");
r.exec(unmatchingString);
print("Properties of RegExp after " + r + ".exec(" + unmatchingString + "):");
printProperties(RegExp);
print("");
print("---------- [Cleared RegExp values] ----------");
dummyRegExp.exec(dummyString);
if (RegExp.lastMatch != "")
print("Clear failed");
matchingString.search(r);
print("Properties of RegExp after " + matchingString + ".search(" + r + "):");
printProperties(RegExp);
print("");
print("---------- [Cleared RegExp values] ----------");
dummyRegExp.exec(dummyString);
matchingString.replace(r);
print("Properties of RegExp after " + matchingString + ".replace(" + r + "):");
printProperties(RegExp);
}
</script>
</head>
<body onload="test();">
<p>
This test checks our implementation of the special RegExp member variables.
</p>
<hr>
<div id='console'/ style="font-family: courier; font-size: 12">
</body>
</html>