1 files changed, 10 insertions, 40 deletions

diff --git a/tools/node_modules/eslint/node_modules/slice-ansi/index.js b/tools/node_modules/eslint/node_modules/slice-ansi/index.js
index 634ee9c7be..65a1aef5c8 100755
--- a/tools/node_modules/eslint/node_modules/slice-ansi/index.js
+++ b/tools/node_modules/eslint/node_modules/slice-ansi/index.js
@@ -1,5 +1,7 @@
 'use strict';
 const isFullwidthCodePoint = require('is-fullwidth-code-point');
+const astralRegex = require('astral-regex');
+const ansiStyles = require('ansi-styles');
 
 const ESCAPES = [
 	'\u001B',
@@ -7,55 +9,23 @@ const ESCAPES = [
 ];
 
 const END_CODE = 39;
-const ASTRAL_REGEX = /[\uD800-\uDBFF][\uDC00-\uDFFF]/;
-
-const ESCAPE_CODES = new Map([
-	[0, 0],
-	[1, 22],
-	[2, 22],
-	[3, 23],
-	[4, 24],
-	[7, 27],
-	[8, 28],
-	[9, 29],
-	[30, 39],
-	[31, 39],
-	[32, 39],
-	[33, 39],
-	[34, 39],
-	[35, 39],
-	[36, 39],
-	[37, 39],
-	[90, 39],
-	[40, 49],
-	[41, 49],
-	[42, 49],
-	[43, 49],
-	[44, 49],
-	[45, 49],
-	[46, 49],
-	[47, 49]
-]);
 
 const wrapAnsi = code => `${ESCAPES[0]}[${code}m`;
 
 module.exports = (str, begin, end) => {
-	const arr = Array.from(str.normalize());
+	const arr = [...str.normalize()];
 
 	end = typeof end === 'number' ? end : arr.length;
 
 	let insideEscape = false;
-	let escapeCode;
+	let escapeCode = null;
 	let visible = 0;
 	let output = '';
 
-	for (const item of arr.entries()) {
-		const i = item[0];
-		const x = item[1];
-
+	for (const [i, x] of arr.entries()) {
 		let leftEscape = false;
 
-		if (ESCAPES.indexOf(x) !== -1) {
+		if (ESCAPES.includes(x)) {
 			insideEscape = true;
 			const code = /\d[^m]*/.exec(str.slice(i, i + 4));
 			escapeCode = code === END_CODE ? null : code;
@@ -68,17 +38,17 @@ module.exports = (str, begin, end) => {
 			++visible;
 		}
 
-		if (!ASTRAL_REGEX.test(x) && isFullwidthCodePoint(x.codePointAt())) {
+		if (!astralRegex({exact: true}).test(x) && isFullwidthCodePoint(x.codePointAt())) {
 			++visible;
 		}
 
 		if (visible > begin && visible <= end) {
 			output += x;
-		} else if (visible === begin && !insideEscape && escapeCode !== undefined && escapeCode !== END_CODE) {
+		} else if (visible === begin && !insideEscape && escapeCode !== null && escapeCode !== END_CODE) {
 			output += wrapAnsi(escapeCode);
 		} else if (visible >= end) {
-			if (escapeCode !== undefined) {
-				output += wrapAnsi(ESCAPE_CODES.get(parseInt(escapeCode, 10)) || END_CODE);
+			if (escapeCode !== null) {
+				output += wrapAnsi(ansiStyles.codes.get(parseInt(escapeCode, 10)) || END_CODE);
 			}
 			break;
 		}