public TableAndFieldToken(Scope scope, TableToken tableToken, DotToken dotToken, TableFieldToken fieldToken)
: base(scope)
{
#if DEBUG
if (tableToken == null || dotToken == null || fieldToken == null)
{
throw new ArgumentNullException();
}
#endif
AddToken(_tableToken = tableToken);
AddToken(dotToken);
AddToken(_fieldToken = fieldToken);
}
private static bool TryParseColumn(Scope scope, GroupToken parent, bool allowRelInd, ExtractTableDefinition extractDef)
{
var code = scope.Code;
if (code.ReadWord())
{
var wordPos = code.TokenStartPostion;
var table = DkDict.Dict.GetTable(code.Text);
if (table != null)
{
var tableToken = new TableToken(scope, code.Span, code.Text, table.Definition);
if (code.ReadExact('.'))
{
var dotToken = new DotToken(scope, code.Span);
if (code.ReadWord())
{
var field = table.GetColumn(code.Text);
if (field != null)
{
var fieldName = code.Text;
var fieldSpan = code.Span;
var fieldToken = new TableFieldToken(scope, fieldSpan, fieldName, field);
parent.AddToken(new TableAndFieldToken(scope, tableToken, dotToken, fieldToken));
}
else
{
parent.AddToken(new CompositeToken(scope, null, tableToken, dotToken, new UnknownToken(scope, code.Span, code.Text)));
}
}
else
{
parent.AddToken(new CompositeToken(scope, null, tableToken, dotToken));
}
}
else
{
parent.AddToken(tableToken);
}
return(true);
}
if (allowRelInd)
{
var relind = DkDict.Dict.GetRelInd(code.Text);
if (relind != null)
{
parent.AddToken(new RelIndToken(scope, code.Span, code.Text, relind.Definition));
return(true);
}
}
if (extractDef != null && code.Text == extractDef.Name)
{
parent.AddToken(new IdentifierToken(scope, code.Span, code.Text, extractDef));
if (code.ReadExact('.'))
{
parent.AddToken(new DotToken(scope, code.Span));
var word = code.PeekWordR();
if (!string.IsNullOrEmpty(word))
{
var childDef = extractDef.GetChildDefinitions(word).FirstOrDefault();
if (childDef != null)
{
parent.AddToken(new IdentifierToken(scope, code.MovePeekedSpan(), word, childDef));
}
}
}
return(true);
}
// Word was not recognized, so set parser back to before the word so it can get picked up later.
code.Position = wordPos;
}
return(false);
}