/// <summary>
/// Copy a portion of source text into a target SourceText instance
/// </summary>
/// <param name="target"></param>
/// <param name="from">Start offste of the portion</param>
/// <param name="to">End offset of the portion</param>
public override void Copy(SourceText target, int from, int to)
{
if (!CheckRange(next, from, to) || target == null)
{
return;
}
if (!(target is StringSourceText))
{ // convert
int s = to - from;
char[] buf = new char[s];
Array.Copy(content, from, buf, 0, s);
target.ReplaceWithStr(buf, s);
return;
}
StringSourceText ct = (StringSourceText)target;
int nSave = to - from;
if (ct.size < nSave)
{
ct.Expand(nSave);
}
Array.Copy(content, from, ct.content, 0, nSave);
ct.next = nSave;
}
/// <summary>
/// Copy a portion of source text into a target SourceText instance
/// </summary>
/// <param name="target"></param>
/// <param name="from">Start offste of the portion</param>
/// <param name="to">End offset of the portion</param>
public override void Copy(SourceText target, int from, int to)
{
if (!CheckRange(length, from, to) || (target == null))
{
return;
}
if (!(target is GapSourceText))
{ // convert
int s = to - from;
char[] buf = new char[s + 1];
CopyTo(buf, 0, from, to);
buf[to - from] = '\0';
target.ReplaceWithStr(buf, s);
return;
}
GapSourceText ft = (GapSourceText)target;
int nSize = to - from;
ft.Empty();
if (ft.size < nSize)
{
ft.Expand(nSize, 0);
}
CopyTo(ft.body, 0, from, to);
ft.length = to - from;
ft.Update(to - from);
}