/// <summary> Scans greedily for 1 or more whitespace characters.</summary>
/// <param name="expected_name">the expected message when fails.
/// </param>
/// <returns> the Scanner object.
/// </returns>
public static Scanner IsWhitespaces(string expected_name)
{
return(IsPattern("isWhitespaces", Patterns.Many(1, CharPredicates.IsWhitespace()), expected_name));
}
/// <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"));
}
/// <summary> Scans greedily for 0 or more characters
/// that satisfies the given CharPredicate.
/// </summary>
/// <param name="cp">the predicate object.
/// </param>
/// <returns> the Scanner object.
/// </returns>
public static Scanner Many(CharPredicate cp)
{
return(IsPattern("many chars", Patterns.Many(cp), "many"));
}