public static IParser Integer(
bool allowLeadingZero = false,
bool allowNegative = true,
string name = "Integer")
{
var parser = allowLeadingZero
? ParserBuilder.OneOrMore(ParserBuilder.Class("0-9"))
: ParserBuilder.Choice(
ParserBuilder.T("0"),
ParserBuilder.Sequence(
ParserBuilder.Class("1-9"),
ParserBuilder.ZeroOrMore(ParserBuilder.Class("0-9"))
)
);
if (allowNegative)
{
parser = ParserBuilder.Sequence(
ParserBuilder.Optional(ParserBuilder.T("-")),
parser
);
}
return(AddName(parser, name));
}
public static IParser Identifier(
string name = "Identifier")
{
var parser = ParserBuilder.Sequence(
ParserBuilder.Choice(
ParserBuilder.T('_'),
ParserBuilder.Letter
),
ParserBuilder.ZeroOrMore(ParserBuilder.Choice(
ParserBuilder.T('_'),
ParserBuilder.LetterOrDigit
))
);
return(AddName(parser, name));
}