/// <summary>
///
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
/// <remarks>
///
/// See http://www.dmtf.org/sites/default/files/standards/documents/DSP0221_3.0.0.pdf
///
/// A.13 Names
///
/// MOF names are identifiers with the format defined by the IDENTIFIER rule.
/// No whitespace is allowed between the elements of the rules in this ABNF section.
///
/// IDENTIFIER = firstIdentifierChar *( nextIdentifierChar )
/// firstIdentifierChar = UPPERALPHA / LOWERALPHA / UNDERSCORE
/// nextIdentifierChar = firstIdentifierChar / decimalDigit
/// elementName = localName / schemaQualifiedName
/// localName = IDENTIFIER
///
/// </remarks>
private static IdentifierToken ReadIdentifierToken(ILexerStream stream)
{
var sourceChars = new List <SourceChar>();
var nameChars = new List <char>();
// firstIdentifierChar
var peek = stream.Peek();
if (!StringValidator.IsFirstIdentifierChar(peek.Value))
{
throw new InvalidOperationException(
string.Format("Unexpected character '{0}' encountered", peek.Value));
}
// *( nextIdentifierChar )
while (!stream.Eof)
{
peek = stream.Peek();
if (StringValidator.IsNextIdentifierChar(peek.Value))
{
var @char = stream.Read();
sourceChars.Add(@char);
nameChars.Add(@char.Value);
}
else
{
break;
}
}
// return the result
var extent = new SourceExtent(sourceChars);
var name = new string(nameChars.ToArray());
return(new IdentifierToken(extent, name));
}
public static void IsNextIdentifierCharTest(char value, bool expectedResult)
{
var result = StringValidator.IsNextIdentifierChar(value);
Assert.AreEqual(expectedResult, result);
}
