public object this[IDocument document, LineSegment line, int offset, int length]
{
get
{
if (length == 0)
{
return(null);
}
LookupTable.Node node = this.root;
int num = line.Offset + offset;
if (this.casesensitive)
{
for (int i = 0; i < length; i++)
{
int num2 = (int)(document.GetCharAt(num + i) % 'Ā');
node = node.leaf[num2];
if (node == null)
{
return(null);
}
if (node.color != null && TextUtility.RegionMatches(document, num, length, node.word))
{
return(node.color);
}
}
}
else
{
for (int j = 0; j < length; j++)
{
int num3 = (int)(char.ToUpper(document.GetCharAt(num + j)) % 'Ā');
node = node.leaf[num3];
if (node == null)
{
return(null);
}
if (node.color != null && TextUtility.RegionMatches(document, this.casesensitive, num, length, node.word))
{
return(node.color);
}
}
}
return(null);
}
}
public static bool RegionMatches(IDocument document, bool casesensitive, int offset, int length, char[] word)
{
if (casesensitive)
{
return(TextUtility.RegionMatches(document, offset, length, word));
}
if (length != word.Length || document.TextLength < offset + length)
{
return(false);
}
for (int i = 0; i < length; i++)
{
if (char.ToUpper(document.GetCharAt(offset + i)) != char.ToUpper(word[i]))
{
return(false);
}
}
return(true);
}