private static void WhitespaceDiff(StringBuilder res, Word left, Word right)
{
if (left.Whitespace == right.Whitespace)
{
res.Append(HttpUtility.HtmlEncode(right.ToString()));
}
else
{
res.Append(HttpUtility.HtmlEncode(right.TheWord));
char[] leftChars = left.Whitespace.ToCharArray();
char[] rightChars = right.Whitespace.ToCharArray();
Diff diff = new Diff(leftChars, rightChars, Word.Comparer);
foreach (Diff.Hunk h in diff)
{
if (h.Same)
{
res.Append(rightChars, h.Right.Start, h.Right.Count);
}
else
{
res.Append("<span class='diffchange'>");
res.Append('\x00A0', h.Right.Count); // replace spaces with NBSPs to make 'em visible
res.Append("</span>");
}
}
}
}
public void WordTests()
{
Word w1;
Word w2;
w1 = new Word("", "");
w2 = new Word("", " ");
Assert.AreEqual("", w1.TheWord);
Assert.AreEqual("", w1.Whitespace);
Assert.AreEqual("", w1.ToString());
Assert.AreEqual("", w2.TheWord);
Assert.AreEqual(" ", w2.Whitespace);
Assert.AreEqual(" ", w2.ToString());
Assert.AreEqual(w1, w2);
Assert.AreEqual(w1.GetHashCode(), w2.GetHashCode());
w1 = new Word("foo", " ");
w2 = new Word("foo", "");
Assert.AreEqual("foo", w1.TheWord);
Assert.AreEqual("foo ", w1.ToString());
Assert.AreEqual("foo", w2.ToString());
Assert.AreEqual(w1, w2);
Assert.AreEqual(w1.GetHashCode(), w2.GetHashCode());
w2 = new Word("Foo", "");
Assert.AreNotEqual(w1, w2);
Assert.AreNotEqual(w1.GetHashCode(), w2.GetHashCode());
}
private static void WhitespaceDiff(StringBuilder res, Word left, Word right)
{
if (left.Whitespace == right.Whitespace) res.Append(HttpUtility.HtmlEncode(right.ToString()));
else
{
res.Append(HttpUtility.HtmlEncode(right.TheWord));
char[] leftChars = left.Whitespace.ToCharArray();
char[] rightChars = right.Whitespace.ToCharArray();
Diff diff = new Diff(leftChars, rightChars, Word.Comparer);
foreach (Diff.Hunk h in diff)
{
if (h.Same)
res.Append(rightChars, h.Right.Start, h.Right.Count);
else
{
res.Append("<span class='diffchange'>");
res.Append('\x00A0', h.Right.Count); // replace spaces with NBSPs to make 'em visible
res.Append("</span>");
}
}
}
}