internal static Pattern getModifiersPattern()
{
return(Patterns.IsChar(CharPredicates.IsAlpha()).Many());
}
/// <summary> scans a quoted string that is opened by c1 and closed by c2. </summary>
/// <param name="c1">the opening character.
/// </param>
/// <param name="c2">the closing character.
/// </param>
/// <returns> the scanner.
/// </returns>
public static Scanner IsQuotedBy(char c1, char c2)
{
return(IsPattern("open quote and quoted",
Patterns.IsChar(c1).Seq(Patterns.Many(CharPredicates.NotChar(c2))), "" + c1)
.Seq(IsChar(c2)).Rename("quoted"));
}