| private GetWhitespaceBefore ( ITextSource textSource, int offset ) : ISegment | ||
| textSource | ITextSource | |
| offset | int | |
| return | ISegment | |
public static ISegment GetWhitespaceBefore(ITextSource textSource, int offset)
{
if (textSource == null)
throw new ArgumentNullException("textSource");
int pos;
for (pos = offset - 1; pos >= 0; pos--)
{
var c = textSource.GetCharAt(pos);
if (c != ' ' && c != '\t')
break;
}
pos++; // go back the one character that isn't whitespace
return new SimpleSegment(pos, offset - pos);
}
