/* Copyright (C) 2022 Open Information Security Foundation

 *

 * You can copy, redistribute or modify this Program under the terms of

 * the GNU General Public License version 2 as published by the Free

 * Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * version 2 along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

 * 02110-1301, USA.

 */

use crate::detect::error::RuleParseError;

use nom7::bytes::complete::is_not;

use nom7::character::complete::multispace0;

use nom7::sequence::preceded;

use nom7::IResult;

static WHITESPACE: &str = " \t\r\n";

/// Parse all characters up until the next whitespace character.

pub fn take_until_whitespace(input: &str) -> IResult<&str, &str, RuleParseError<&str>> {

    nom7::bytes::complete::is_not(WHITESPACE)(input)

}

/// Parse the next token ignoring leading whitespace.

///

/// A token is the next sequence of chars until a terminating character. Leading whitespace

/// is ignore.

pub fn parse_token(input: &str) -> IResult<&str, &str, RuleParseError<&str>> {

    let terminators = "\n\r\t,;: ";

    preceded(multispace0, is_not(terminators))(input)

}