private static void HandleFinalPositionInIdentifier(OPathParseResult parseResult)
{
string identifier = parseResult.GetAndResetIdentifier();
if (IsXPathOperator(identifier))
{
parseResult.AppendOperatorToXPath(identifier);
}
else
{
parseResult.AddVariable(identifier);
}
}
private static void HandleCurrentPositionInIdentifier(OPathParseResult parseResult, char opathChar,
int opathCharIndex)
{
if (IsIdentifierChar(opathChar))
{
if (parseResult.HasWhitespace)
{
string identifier = parseResult.GetIdentifier();
if (IsStandardSourceObjectIdentifier(identifier))
{
parseResult.ResetIdentifier();
parseResult.AddVariable(identifier);
parseResult.AppendWhitespaceCharToXPath();
}
}
parseResult.AppendToIdentifier(opathChar);
}
else if (IsWhitespaceChar(opathChar))
{
string identifier = parseResult.GetIdentifier();
if (IsXPathOperator(identifier))
{
parseResult.CurrentPosition = OPathParsePosition.InExpression;
parseResult.ResetIdentifier();
parseResult.AppendOperatorToXPath(identifier);
parseResult.AppendWhitespaceCharToXPath();
}
else
{
parseResult.AppendCharToWhitespace();
}
}
else if (IsOpeningBracket(opathChar))
{
parseResult.CurrentPosition = OPathParsePosition.InExpression;
string identifier = parseResult.GetAndResetIdentifier();
parseResult.AppendFunctionToXPath(identifier);
parseResult.AppendToXPath(opathChar);
parseResult.ResetWhitespace();
}
else if (IsMemberPrefixChar(opathChar))
{
parseResult.CurrentPosition = OPathParsePosition.InMember;
parseResult.CurrentVariableName = parseResult.GetAndResetIdentifier();
parseResult.MemberStartIndex = opathCharIndex;
parseResult.ResetWhitespace();
}
else if (IsIndexerStartChar(opathChar))
{
parseResult.CurrentPosition = OPathParsePosition.PreIndexerValue;
parseResult.CurrentVariableName = parseResult.GetAndResetIdentifier();
parseResult.IndexerStartIndex = opathCharIndex;
parseResult.ResetWhitespace();
}
else if (IsStringDelimiterChar(opathChar))
{
parseResult.CurrentPosition = OPathParsePosition.InString;
parseResult.CurrentStringDelimiter = opathChar;
parseResult.AppendToXPath(opathChar);
parseResult.StringStartIndex = opathCharIndex;
}
else
{
parseResult.CurrentPosition = OPathParsePosition.InExpression;
string identifier = parseResult.GetAndResetIdentifier();
if (IsXPathOperator(identifier))
{
parseResult.AppendOperatorToXPath(identifier);
}
else
{
parseResult.AddVariable(identifier);
}
parseResult.AppendToXPath(parseResult.GetAndResetWhitespace());
parseResult.AppendToXPath(opathChar);
}
}
private static void HandleCurrentPositionInExpression(OPathParseResult parseResult, char opathChar,
char nextOPathChar, int opathCharIndex)
{
if (IsWhitespaceChar(opathChar))
{
parseResult.AppendWhitespaceCharToXPath();
}
else if (IsAlphabeticChar(opathChar))
{
parseResult.CurrentPosition = OPathParsePosition.InIdentifier;
parseResult.AppendToIdentifier(opathChar);
parseResult.IdentifierStartIndex = opathCharIndex;
}
else if (IsStringDelimiterChar(opathChar))
{
parseResult.CurrentPosition = OPathParsePosition.InString;
parseResult.CurrentStringDelimiter = opathChar;
parseResult.AppendToXPath(opathChar);
parseResult.StringStartIndex = opathCharIndex;
}
else if (IsOperatorChar(opathChar))
{
if (nextOPathChar == opathChar)
{
// Ignore multiple operators, such as && and ||
}
else
{
parseResult.AppendOperatorToXPath(opathChar);
}
}
else if (IsNotChar(opathChar))
{
if (IsEqualityChar(nextOPathChar))
{
// Allow != through
parseResult.AppendToXPath(opathChar);
}
else
{
parseResult.CurrentPosition = OPathParsePosition.InIdentifier;
parseResult.AppendToIdentifier("not");
parseResult.IdentifierStartIndex = opathCharIndex;
}
}
else if (IsEqualityChar(opathChar))
{
if (nextOPathChar == opathChar)
{
// Ignore multiple equalities
}
else
{
parseResult.AppendToXPath(opathChar);
}
}
else
{
parseResult.AppendToXPath(opathChar);
}
}
