/// <summary> a scanner with a CharPattern for double quoted string literal.
/// backslash '\' is used as escape character.
/// </summary>
/// <returns> the scanner.
/// </returns>
public static Scanner IsQuotedString()
{
/*
* final CharPattern q = Patterns.IsChar('"');
* final CharPattern open = q.Seq(quoted().Many());
* return isPattern(open, "\"").Seq(name, isPattern(q, "\""));
*/
Scanner q = Scanners.IsChar('"');
Scanner qc = IsPattern("string quoted", quoted_str, "quoted string");
return(qc.Between(q, q).Rename("quoted string"));
}
internal static WordsData instance(string[] names)
{
Hashtable operators = new Hashtable();
string[] ops = sort(names);
Lexer[] lxs = new Lexer[ops.Length];
for (int i = 0; i < ops.Length; i++)
{
string s = ops[i];
Scanner scanner = s.Length == 1 ? Scanners.IsChar(s[0]) : Scanners.IsString(s);
object tok = Tokens.CreateReservedWordToken(s);
operators[s] = tok;
Lexer lx = Lexers.Lex(scanner, Tokenizers.ForValue(tok));
lxs[i] = lx;
}
return(new WordsData(Functors.AsMap <string, object>(operators), lxs));
}
/// <summary> scanner for a c/c++/java style character literal. such as 'a' or '\\'.</summary>
/// <returns> the scanner.
/// </returns>
public static Scanner IsQuotedChar()
{
//final Scanner q = isChar('\'');
/*
* final CharPattern q = Patterns.IsChar('\'');
* final CharPattern qc = Patterns.or(
* Patterns.IsString("\\'"),
* Patterns.NotChar('\'')
* );
* return isPattern(q.Seq(qc), "'").Seq(name, isPattern(q, "'"));
*/
Scanner q = Scanners.IsChar('\'');
Scanner qc = IsPattern("char quoted", quoted_char, "quoted char");
return(qc.Between(q, q).Rename("quoted char"));
}
