/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * See LICENSE.txt included in this distribution for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at LICENSE.txt.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2010, 2016, Oracle and/or its affiliates. All rights reserved.
 * Portions Copyright (c) 2017, 2019-2020, Chris Fraire <cfraire@me.com>.
 */

MaybeWhsp     = {WhspChar}*

Identifier = (\p{L} {idchar}* | "." [{idchar}--{decimal}] {idchar}*)
idchar = [\p{L}{decimal}\._]

Number = ({Numeric_literal} | {Fractional_literal} | {Hex_literal}) [Li]?
Numeric_literal = {decimal}+ ("." {decimal}+)? ({expmark} {decimal}+)?
Fractional_literal = "." {decimal}+ ({expmark} {decimal}+)?
Hex_literal = 0[Xx]{hexdigit}+ ("." {hexdigit}+)? ([Pp] [-+]? {decimal}+)?
decimal = [0-9]
expmark = [eE] [\+\-]?
hexdigit = [0-9a-fA-F]

FileExt = [Rr] ([Dd][Aa][Tt][Aa] | [Dd][AaSs])?
File = [a-zA-Z]{FNameChar}* "." {FileExt}

/*
 * YYINITIAL : base scanning state
 * SCOMMENT : single-line comment
 * QSTRING: literal string expression delimited by apostrophes
 * STRING: literal string expression delimited by quotation marks
 */
%state SCOMMENT QSTRING STRING