shellharden 4.1.1

The corrective bash syntax highlighter
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/*
 * Copyright 2016 Andreas Nordal
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

use ::situation::Situation;
use ::situation::Transition;
use ::situation::WhatNow;
use ::situation::ParseResult;
use ::situation::flush;

use ::sitextent::SitExtent;

pub struct SitStrSqEsc {}

impl Situation for SitStrSqEsc {
	fn whatnow(&mut self, horizon: &[u8], _is_horizon_lengthenable: bool) -> ParseResult {
		for (i, &a) in horizon.iter().enumerate() {
			if a == b'\\' {
				let esc = Box::new(SitExtent{len: 1, color: 0x01_ff0080, end_insert: None});
				return Ok(WhatNow{tri: Transition::Push(esc), pre: i, len: 1, alt: None});
			}
			if a == b'\'' {
				return Ok(WhatNow{tri: Transition::Pop, pre: i, len: 1, alt: None});
			}
		}
		Ok(flush(horizon.len()))
	}
	fn get_color(&self) -> u32{
		0x00_ff8000
	}
}