public bool Assistant(InputReader ireader, IRTSEngine engine)
{
Close();
if (ireader.SelectLength > 0 || string.IsNullOrEmpty(ireader.Text))
{
return(false);
}
CharSequence cs = new CharSequence(ireader.Text);
int off = cs.TempOffset;
string keyword = null;
while (cs.HasNextAtom)
{
cs.fixCharsOffset();
int off2 = cs.TempOffset;
if (off2 >= ireader.SelectStart)
{
return(false);
}
string word = cs.nextAtom();
off2 = cs.TempOffset;
if (off2 >= ireader.SelectStart)
{
keyword = word;
off = off2 - keyword.Length;
break;
}
}
if (!string.IsNullOrEmpty(keyword))
{
Offset = off;
KeyWord = keyword;
Dictionary <string, IRTSFunction> funcs = Ref.GetField(engine, "mFuncs") as Dictionary <string, IRTSFunction>;
int flen = funcs == null ? 0 : funcs.Count;
Dictionary <string, object> vars = Ref.GetField(engine, "mVars") as Dictionary <string, object>;
int vlen = vars == null ? 0 : vars.Count;
string[] atoms = new string[flen + vlen];
if (flen > 0)
{
funcs.Keys.CopyTo(atoms, 0);
}
if (vlen > 0)
{
vars.Keys.CopyTo(atoms, flen);
}
for (int i = 0; i < atoms.Length; i++)
{
if (i < flen)
{
int n = atoms[i].IndexOf('-');
if (n > 0)
{
atoms[i] = atoms[i].Substring(0, n) + '(';
}
}
else
{
atoms[i] = "global " + atoms[i];
}
if (!accept(atoms[i]))
{
continue;
}
assistants.AddLast(atoms[i]);
}
if (assistants.Count > 0)
{
ireader.SelectStart = Offset + KeyWord.Length;
ireader.SelectEnd = Offset;
}
else
{
KeyWord = null;
}
return(true);
}
else
{
return(false);
}
}