public CsdlSyntax(string syntaxText)
{
if (string.IsNullOrWhiteSpace(syntaxText))
{
throw new ArgumentNullException(nameof(syntaxText));
}
SyntaxText = syntaxText;
syntaxText = syntaxText.Trim();
// Parse anchor (direction)
if (syntaxText[0] == ANCHOR_TOKEN)
{
RightToLeftParsing = false;
syntaxText = syntaxText.TrimStart(ANCHOR_TOKEN);
}
else if (syntaxText[syntaxText.Length - 1] == ANCHOR_TOKEN)
{
RightToLeftParsing = true;
syntaxText = syntaxText.TrimEnd(ANCHOR_TOKEN);
}
// Check for perfect match
if (syntaxText.Length > 0 &&
syntaxText[0] == PERFECT_MATCH_START &&
syntaxText[syntaxText.Length - 1] == PERFECT_MATCH_END)
{
PerfectMatchOnly = true;
syntaxText = syntaxText.TrimStart(PERFECT_MATCH_START).TrimEnd(PERFECT_MATCH_END);
}
Tokens = CsdlToken.GetTokensFromPattern(syntaxText.Trim());
}
