private static void WordDiff(StringBuilder res, Range range, Range otherRange, IList<Word> words, IList<Word> otherWords)
{
bool open = false;
for (int i = 0; i < range.Count; i++)
{
if (i >= otherRange.Count || words[range.Start + i].ToString() != otherWords[otherRange.Start + i].ToString())
{
if (!open) res.Append("<span class='diffchange'>");
open = true;
}
else
{
if (open) res.Append("</span>");
open = false;
}
res.Append(HttpUtility.HtmlEncode(words[range.Start + i].ToString()));
}
if (open) res.Append("</span>");
}
private static void WriteCharBlock(TextWriter writer, char prefix, Range items)
{
bool newline = true;
int counter = 0;
foreach (char c in items)
{
if (c == '\n' && !newline)
{
writer.WriteLine();
newline = true;
}
if (newline)
{
writer.Write(prefix);
newline = false;
counter = 0;
}
if (c == '\n')
{
writer.WriteLine("[newline]");
newline = true;
}
else
{
writer.Write(c);
counter++;
if (counter == 60)
{
writer.WriteLine();
newline = true;
}
}
}
if (!newline)
{
writer.WriteLine();
}
}
private static void WriteStringBlock(TextWriter writer, char prefix, Range items)
{
foreach (object item in items)
{
writer.Write(prefix);
writer.WriteLine(item.ToString());
}
}
private static void WriteBlock(TextWriter writer, char prefix, Range items)
{
if (items.Count > 0 && items[0] is char)
WriteCharBlock(writer, prefix, items);
else
WriteStringBlock(writer, prefix, items);
}