/// <summary> Select an attribute name for iteration, * choose all attributes of an element</summary>
/// <param name="en">
/// </param>
protected internal void selectAttr(System.String en)
{
if (en == null)
{
throw new System.ArgumentException("attribute name can't be null");
}
iter_type = ATTR;
ft = true;
size = vn.getTokenCount();
name = en;
}
private int count(VTDNav vn)
{
int a = -1;
if (argCount() != 1 || argumentList.e.NodeSet == false)
{
throw new System.ArgumentException("Count()'s argument count is invalid");
}
vn.push2();
try
{
a = 0;
argumentList.e.adjust(vn.getTokenCount());
while (argumentList.e.evalNodeSet(vn) != -1)
{
a++;
}
argumentList.e.reset(vn);
vn.pop2();
}
catch (System.Exception e)
{
argumentList.e.reset(vn);
vn.pop2();
}
return(a);
}
/// <summary>
///
/// </summary>
/// <param name="en"></param>
protected internal void selectNameSpace(String en)
{
if (en == null)
{
throw new ArgumentException("namespace name can't be null");
}
iter_type = NAME_SPACE;
ft = true;
size = vn.getTokenCount();
name = en;
if (!en.Equals("*"))
{
name2 = "xmlns:" + en;
}
if (fib == null)
{
fib = new FastIntBuffer(4);
}
else
{
fib.size_Renamed_Field = 0;
}
}
public override int evalNodeSet(VTDNav vn)
{
// if tne predicate require context size
// needs to precompute the context size
// vn.push2();
// computerContext();
// set contxt();
// vn.pop2()
// if the context size is zero
// get immediately set teh state to end
// or backward
if (first_time && p.requireContext)
{
first_time = false;
int i = 0;
//vn.push2();
e.adjust(vn.getTokenCount());
while (e.evalNodeSet(vn) != -1)
{
i++;
}
//vn.pop2();
p.ContextSize = i;
reset2(vn);
}
if (out_of_range)
{
return(-1);
}
int a = e.evalNodeSet(vn);
while (a != -1)
{
if (p.eval(vn) == true)
{
//p.reset();
return(a);
}
else
{
//p.reset();
a = e.evalNodeSet(vn);
}
}
return(-1);
}
protected override bool GetNextToken()
{
if (_isfirsttime)
{
_vgnav = null;
_vg = new VTDGen();
if (_vg.parseFile(_fullname, true))
{
_vgnav = _vg.getNav();
_vgnav.toElement(VTDNav.ROOT);
//_vgap = new AutoPilot(_vgnav);
//_vgap.selectElement("*");
_isfirsttime = false;
_current_index = 0;
}
}
if (_vgnav == null)
{
return(false);
}
int nb_tokens = _vgnav.getTokenCount();
current_token_len = 0;
while (true)
{
try
{
if (_current_index >= nb_tokens)
{
return(false);
}
int len = _vgnav.getTokenLength(_current_index);
if (len >= 3)
{
string token = _vgnav.toString(_current_index);
len = token.Length;
if (len >= 3)
{
if (len > MAX_WORD_LEN)
{
len = MAX_WORD_LEN;
}
current_token = token.ToCharArray(0, len);
current_token_offset = _vgnav.getTokenOffset(_current_index);
current_token_len = len; //_vgnav.getTokenLength(_current_index)
_current_index++;
return(true);
}
}
}
catch (Exception e)
{
e = e;
return(false);
}
_current_index++;
}
return(true);
}
