FM / rules

/home/techb158/balavpn.abdallabala.com/node_modules/eslint/lib/rules/

/home/techb158/balavpn.abdallabala.com/node_modules/eslint/lib/rules

Name	Size	Mode	Actions
utils/	-	0777	rm
accessor-pairs.js	11210	0666	edit dl rm
array-bracket-newline.js	8123	0666	edit dl rm
array-bracket-spacing.js	8071	0666	edit dl rm
array-callback-return.js	12815	0666	edit dl rm
array-element-newline.js	9070	0666	edit dl rm
arrow-body-style.js	10365	0666	edit dl rm
arrow-parens.js	7119	0666	edit dl rm
arrow-spacing.js	4618	0666	edit dl rm
block-scoped-var.js	3501	0666	edit dl rm
block-spacing.js	5159	0666	edit dl rm
brace-style.js	7592	0666	edit dl rm
callback-return.js	5879	0666	edit dl rm
camelcase.js	10363	0666	edit dl rm
capitalized-comments.js	9285	0666	edit dl rm
class-methods-use-this.js	6393	0666	edit dl rm
comma-dangle.js	11652	0666	edit dl rm
comma-spacing.js	5892	0666	edit dl rm
comma-style.js	10241	0666	edit dl rm
complexity.js	5194	0666	edit dl rm
computed-property-spacing.js	6703	0666	edit dl rm
consistent-return.js	5739	0666	edit dl rm
consistent-this.js	4429	0666	edit dl rm
constructor-super.js	12051	0666	edit dl rm
curly.js	11758	0666	edit dl rm
default-case-last.js	1103	0666	edit dl rm
default-case.js	2311	0666	edit dl rm
default-param-last.js	1690	0666	edit dl rm
dot-location.js	3404	0666	edit dl rm
dot-notation.js	5192	0666	edit dl rm
eol-last.js	3566	0666	edit dl rm
eqeqeq.js	4874	0666	edit dl rm
for-direction.js	4305	0666	edit dl rm
func-call-spacing.js	8290	0666	edit dl rm
func-name-matching.js	8835	0666	edit dl rm
func-names.js	5135	0666	edit dl rm
func-style.js	5337	0666	edit dl rm
function-call-argument-newline.js	4222	0666	edit dl rm
function-paren-newline.js	10198	0666	edit dl rm
generator-star-spacing.js	6319	0666	edit dl rm
getter-return.js	5756	0666	edit dl rm
global-require.js	2853	0666	edit dl rm
grouped-accessor-pairs.js	7185	0666	edit dl rm
guard-for-in.js	1924	0666	edit dl rm
handle-callback-err.js	3247	0666	edit dl rm
id-blacklist.js	6700	0666	edit dl rm
id-denylist.js	6357	0666	edit dl rm
id-length.js	5613	0666	edit dl rm
id-match.js	9208	0666	edit dl rm
implicit-arrow-linebreak.js	3147	0666	edit dl rm
indent-legacy.js	35743	0666	edit dl rm
indent.js	66474	0666	edit dl rm
index.js	17913	0666	edit dl rm
init-declarations.js	3974	0666	edit dl rm
jsx-quotes.js	3147	0666	edit dl rm
key-spacing.js	21268	0666	edit dl rm
keyword-spacing.js	20417	0666	edit dl rm
line-comment-position.js	3736	0666	edit dl rm
linebreak-style.js	3569	0666	edit dl rm
lines-around-comment.js	15497	0666	edit dl rm
lines-around-directive.js	7023	0666	edit dl rm
lines-between-class-members.js	10129	0666	edit dl rm
logical-assignment-operators.js	19047	0666	edit dl rm
max-classes-per-file.js	1858	0666	edit dl rm
max-depth.js	3633	0666	edit dl rm
max-len.js	13652	0666	edit dl rm
max-lines-per-function.js	6050	0666	edit dl rm
max-lines.js	4403	0666	edit dl rm
max-nested-callbacks.js	2691	0666	edit dl rm
max-params.js	3075	0666	edit dl rm
max-statements-per-line.js	6738	0666	edit dl rm
max-statements.js	4575	0666	edit dl rm
multiline-comment-style.js	18395	0666	edit dl rm
multiline-ternary.js	6541	0666	edit dl rm
new-cap.js	7204	0666	edit dl rm
new-parens.js	3167	0666	edit dl rm
newline-after-var.js	8852	0666	edit dl rm
newline-before-return.js	7126	0666	edit dl rm
newline-per-chained-call.js	3883	0666	edit dl rm
no-alert.js	3843	0666	edit dl rm
no-array-constructor.js	4995	0666	edit dl rm
no-async-promise-executor.js	1007	0666	edit dl rm
no-await-in-loop.js	2494	0666	edit dl rm
no-bitwise.js	2948	0666	edit dl rm
no-buffer-constructor.js	1868	0666	edit dl rm
no-caller.js	1086	0666	edit dl rm
no-case-declarations.js	1867	0666	edit dl rm
no-catch-shadow.js	2515	0666	edit dl rm
no-class-assign.js	1566	0666	edit dl rm
no-compare-neg-zero.js	1662	0666	edit dl rm
no-cond-assign.js	4837	0666	edit dl rm
no-confusing-arrow.js	3232	0666	edit dl rm
no-console.js	6233	0666	edit dl rm
no-const-assign.js	1848	0666	edit dl rm
no-constant-binary-expression.js	18150	0666	edit dl rm
no-constant-condition.js	4469	0666	edit dl rm
no-constructor-return.js	1191	0666	edit dl rm
no-continue.js	784	0666	edit dl rm
no-control-regex.js	3830	0666	edit dl rm
no-debugger.js	793	0666	edit dl rm
no-delete-var.js	852	0666	edit dl rm
no-div-regex.js	1245	0666	edit dl rm
no-dupe-args.js	2387	0666	edit dl rm
no-dupe-class-members.js	2905	0666	edit dl rm
no-dupe-else-if.js	4197	0666	edit dl rm
no-dupe-keys.js	3963	0666	edit dl rm
no-duplicate-case.js	1765	0666	edit dl rm
no-duplicate-imports.js	10024	0666	edit dl rm
no-else-return.js	13405	0666	edit dl rm
no-empty-character-class.js	1938	0666	edit dl rm
no-empty-function.js	5754	0666	edit dl rm
no-empty-pattern.js	1841	0666	edit dl rm
no-empty-static-block.js	1589	0666	edit dl rm
no-empty.js	3202	0666	edit dl rm
no-eq-null.js	1117	0666	edit dl rm
no-eval.js	7542	0666	edit dl rm
no-ex-assign.js	1301	0666	edit dl rm
no-extend-native.js	5421	0666	edit dl rm
no-extra-bind.js	6007	0666	edit dl rm
no-extra-boolean-cast.js	10590	0666	edit dl rm
no-extra-label.js	4265	0666	edit dl rm
no-extra-parens.js	43596	0666	edit dl rm
no-extra-semi.js	4628	0666	edit dl rm
no-fallthrough.js	6966	0666	edit dl rm
no-floating-decimal.js	2568	0666	edit dl rm
no-func-assign.js	1861	0666	edit dl rm
no-global-assign.js	2426	0666	edit dl rm
no-implicit-coercion.js	12600	0666	edit dl rm
no-implicit-globals.js	4626	0666	edit dl rm
no-implied-eval.js	4339	0666	edit dl rm
no-import-assign.js	6179	0666	edit dl rm
no-inline-comments.js	2691	0666	edit dl rm
no-inner-declarations.js	3221	0666	edit dl rm
no-invalid-regexp.js	5962	0666	edit dl rm
no-invalid-this.js	4488	0666	edit dl rm
no-irregular-whitespace.js	7853	0666	edit dl rm
no-iterator.js	1110	0666	edit dl rm
no-label-var.js	2063	0666	edit dl rm
no-labels.js	3365	0666	edit dl rm
no-lone-blocks.js	3320	0666	edit dl rm
no-lonely-if.js	3303	0666	edit dl rm
no-loop-func.js	7035	0666	edit dl rm
no-loss-of-precision.js	7393	0666	edit dl rm
no-magic-numbers.js	10580	0666	edit dl rm
no-misleading-character-class.js	16369	0666	edit dl rm
no-mixed-operators.js	7147	0666	edit dl rm
no-mixed-requires.js	6383	0666	edit dl rm
no-mixed-spaces-and-tabs.js	3465	0666	edit dl rm
no-multi-assign.js	1327	0666	edit dl rm
no-multi-spaces.js	4588	0666	edit dl rm
no-multi-str.js	1610	0666	edit dl rm
no-multiple-empty-lines.js	5581	0666	edit dl rm
no-native-reassign.js	2765	0666	edit dl rm
no-negated-condition.js	2431	0666	edit dl rm
no-negated-in-lhs.js	1338	0666	edit dl rm
no-nested-ternary.js	960	0666	edit dl rm
no-new-func.js	2393	0666	edit dl rm
no-new-native-nonconstructor.js	1754	0666	edit dl rm
no-new-object.js	1866	0666	edit dl rm
no-new-require.js	1588	0666	edit dl rm
no-new-symbol.js	1739	0666	edit dl rm
no-new-wrappers.js	1460	0666	edit dl rm
no-new.js	905	0666	edit dl rm
no-nonoctal-decimal-escape.js	4566	0666	edit dl rm
no-obj-calls.js	2466	0666	edit dl rm
no-object-constructor.js	2923	0666	edit dl rm
no-octal-escape.js	1175	0666	edit dl rm
no-octal.js	832	0666	edit dl rm
no-param-reassign.js	6363	0666	edit dl rm
no-path-concat.js	2012	0666	edit dl rm
no-plusplus.js	2672	0666	edit dl rm
no-process-env.js	1646	0666	edit dl rm
no-process-exit.js	1735	0666	edit dl rm
no-promise-executor-return.js	6675	0666	edit dl rm
no-proto.js	1093	0666	edit dl rm
no-prototype-builtins.js	4721	0666	edit dl rm
no-redeclare.js	4425	0666	edit dl rm
no-regex-spaces.js	5276	0666	edit dl rm
no-restricted-exports.js	5636	0666	edit dl rm
no-restricted-globals.js	6229	0666	edit dl rm
no-restricted-imports.js	23880	0666	edit dl rm
no-restricted-modules.js	6128	0666	edit dl rm
no-restricted-properties.js	5948	0666	edit dl rm
no-restricted-syntax.js	1698	0666	edit dl rm
no-return-assign.js	2259	0666	edit dl rm
no-return-await.js	4457	0666	edit dl rm
no-script-url.js	1512	0666	edit dl rm
no-self-assign.js	4666	0666	edit dl rm
no-self-compare.js	1705	0666	edit dl rm
no-sequences.js	4011	0666	edit dl rm
no-setter-return.js	5725	0666	edit dl rm
no-shadow-restricted-names.js	2672	0666	edit dl rm
no-shadow.js	17353	0666	edit dl rm
no-spaced-func.js	2603	0666	edit dl rm
no-sparse-arrays.js	1483	0666	edit dl rm
no-sync.js	1887	0666	edit dl rm
no-tabs.js	2449	0666	edit dl rm
no-template-curly-in-string.js	989	0666	edit dl rm
no-ternary.js	785	0666	edit dl rm
no-this-before-super.js	9043	0666	edit dl rm
no-throw-literal.js	1088	0666	edit dl rm
no-trailing-spaces.js	6110	0666	edit dl rm
no-unassigned-vars.js	1964	0666	edit dl rm
no-undef-init.js	2409	0666	edit dl rm
no-undef.js	1899	0666	edit dl rm
no-undefined.js	1861	0666	edit dl rm
no-underscore-dangle.js	9535	0666	edit dl rm
no-unexpected-multiline.js	3477	0666	edit dl rm
no-unmodified-loop-condition.js	10035	0666	edit dl rm
no-unneeded-ternary.js	5935	0666	edit dl rm
no-unreachable-loop.js	5076	0666	edit dl rm
no-unreachable.js	7498	0666	edit dl rm
no-unsafe-finally.js	3339	0666	edit dl rm
no-unsafe-negation.js	3972	0666	edit dl rm
no-unsafe-optional-chaining.js	5389	0666	edit dl rm
no-unused-expressions.js	5520	0666	edit dl rm
no-unused-labels.js	3878	0666	edit dl rm
no-unused-private-class-members.js	6277	0666	edit dl rm
no-unused-vars.js	48552	0666	edit dl rm
no-use-before-define.js	11866	0666	edit dl rm
no-useless-assignment.js	19334	0666	edit dl rm
no-useless-backreference.js	7662	0666	edit dl rm
no-useless-call.js	2779	0666	edit dl rm
no-useless-catch.js	1310	0666	edit dl rm
no-useless-computed-key.js	5936	0666	edit dl rm
no-useless-concat.js	2966	0666	edit dl rm
no-useless-constructor.js	6986	0666	edit dl rm
no-useless-escape.js	11065	0666	edit dl rm
no-useless-rename.js	4929	0666	edit dl rm
no-useless-return.js	11954	0666	edit dl rm
no-var.js	11461	0666	edit dl rm
no-void.js	1366	0666	edit dl rm
no-warning-comments.js	5670	0666	edit dl rm
no-whitespace-before-property.js	3883	0666	edit dl rm
no-with.js	757	0666	edit dl rm
nonblock-statement-body-position.js	4418	0666	edit dl rm
object-curly-newline.js	10115	0666	edit dl rm
object-curly-spacing.js	10399	0666	edit dl rm
object-property-newline.js	3758	0666	edit dl rm
object-shorthand.js	18543	0666	edit dl rm
one-var-declaration-per-line.js	2995	0666	edit dl rm
one-var.js	19182	0666	edit dl rm
operator-assignment.js	7536	0666	edit dl rm
operator-linebreak.js	8901	0666	edit dl rm
padded-blocks.js	8910	0666	edit dl rm
padding-line-between-statements.js	16989	0666	edit dl rm
prefer-arrow-callback.js	11667	0666	edit dl rm
prefer-const.js	15780	0666	edit dl rm
prefer-destructuring.js	8931	0666	edit dl rm
prefer-exponentiation-operator.js	6727	0666	edit dl rm
prefer-named-capture-group.js	5048	0666	edit dl rm
prefer-numeric-literals.js	4504	0666	edit dl rm
prefer-object-has-own.js	3804	0666	edit dl rm
prefer-object-spread.js	9489	0666	edit dl rm
prefer-promise-reject-errors.js	4614	0666	edit dl rm
prefer-reflect.js	3828	0666	edit dl rm
prefer-regex-literals.js	14379	0666	edit dl rm
prefer-rest-params.js	3032	0666	edit dl rm
prefer-spread.js	2555	0666	edit dl rm
prefer-template.js	10537	0666	edit dl rm
preserve-caught-error.js	16269	0666	edit dl rm
quote-props.js	10129	0666	edit dl rm
quotes.js	10934	0666	edit dl rm
radix.js	5549	0666	edit dl rm
require-atomic-updates.js	9293	0666	edit dl rm
require-await.js	4564	0666	edit dl rm
require-unicode-regexp.js	7765	0666	edit dl rm
require-yield.js	1718	0666	edit dl rm
rest-spread-spacing.js	3739	0666	edit dl rm
semi-spacing.js	7384	0666	edit dl rm
semi-style.js	5246	0666	edit dl rm
semi.js	13324	0666	edit dl rm
sort-imports.js	8603	0666	edit dl rm
sort-keys.js	5880	0666	edit dl rm
sort-vars.js	3320	0666	edit dl rm
space-before-blocks.js	6328	0666	edit dl rm
space-before-function-paren.js	5253	0666	edit dl rm
space-in-parens.js	9314	0666	edit dl rm
space-infix-ops.js	5890	0666	edit dl rm
space-unary-ops.js	10644	0666	edit dl rm
spaced-comment.js	11246	0666	edit dl rm
strict.js	9141	0666	edit dl rm
switch-colon-spacing.js	4701	0666	edit dl rm
symbol-description.js	1701	0666	edit dl rm
template-curly-spacing.js	4337	0666	edit dl rm
template-tag-spacing.js	3059	0666	edit dl rm
unicode-bom.js	1716	0666	edit dl rm
use-isnan.js	7130	0666	edit dl rm
valid-typeof.js	4262	0666	edit dl rm
vars-on-top.js	4304	0666	edit dl rm
wrap-iife.js	6914	0666	edit dl rm
wrap-regex.js	2167	0666	edit dl rm
yield-star-spacing.js	3992	0666	edit dl rm
yoda.js	9713	0666	edit dl rm

Edit: /home/techb158/balavpn.abdallabala.com/node_modules/eslint/lib/rules/no-useless-escape.js (11065B)

/**
 * @fileoverview Look for useless escapes in strings and regexes
 * @author Onur Temizkan
 */

"use strict";

const astUtils = require("./utils/ast-utils");
const { RegExpParser, visitRegExpAST } = require("@eslint-community/regexpp");

/**
 * @typedef {import('@eslint-community/regexpp').AST.CharacterClass} CharacterClass
 * @typedef {import('@eslint-community/regexpp').AST.ExpressionCharacterClass} ExpressionCharacterClass
 */
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------

/**
 * Returns the union of two sets.
 * @param {Set} setA The first set
 * @param {Set} setB The second set
 * @returns {Set} The union of the two sets
 */
function union(setA, setB) {
	return new Set(
		(function* () {
			yield* setA;
			yield* setB;
		})(),
	);
}

const VALID_STRING_ESCAPES = union(new Set("\\nrvtbfux"), astUtils.LINEBREAKS);
const REGEX_GENERAL_ESCAPES = new Set("\\bcdDfnpPrsStvwWxu0123456789]");
const REGEX_NON_CHARCLASS_ESCAPES = union(
	REGEX_GENERAL_ESCAPES,
	new Set("^/.$*+?[{}|()Bk"),
);

/*
 * Set of characters that require escaping in character classes in `unicodeSets` mode.
 * ( ) [ ] { } / - \ | are ClassSetSyntaxCharacter
 */
const REGEX_CLASSSET_CHARACTER_ESCAPES = union(
	REGEX_GENERAL_ESCAPES,
	new Set("q/[{}|()-"),
);

/*
 * A single character set of ClassSetReservedDoublePunctuator.
 * && !! ## $$ %% ** ++ ,, .. :: ;; << == >> ?? @@ ^^ `` ~~ are ClassSetReservedDoublePunctuator
 */
const REGEX_CLASS_SET_RESERVED_DOUBLE_PUNCTUATOR = new Set(
	"!#$%&*+,.:;<=>?@^`~",
);

/** @type {import('../types').Rule.RuleModule} */
module.exports = {
	meta: {
		type: "suggestion",

defaultOptions: [
			{
				allowRegexCharacters: [],
			},
		],

docs: {
			description: "Disallow unnecessary escape characters",
			recommended: true,
			url: "https://eslint.org/docs/latest/rules/no-useless-escape",
		},

hasSuggestions: true,

messages: {
			unnecessaryEscape: "Unnecessary escape character: \\{{character}}.",
			removeEscape:
				"Remove the `\\`. This maintains the current functionality.",
			removeEscapeDoNotKeepSemantics:
				"Remove the `\\` if it was inserted by mistake.",
			escapeBackslash:
				"Replace the `\\` with `\\\\` to include the actual backslash character.",
		},

schema: [
			{
				type: "object",
				properties: {
					allowRegexCharacters: {
						type: "array",
						items: {
							type: "string",
						},
						uniqueItems: true,
					},
				},
				additionalProperties: false,
			},
		],
	},

create(context) {
		const sourceCode = context.sourceCode;
		const [{ allowRegexCharacters }] = context.options;
		const parser = new RegExpParser();

/**
		 * Reports a node
		 * @param {ASTNode} node The node to report
		 * @param {number} startOffset The backslash's offset from the start of the node
		 * @param {string} character The uselessly escaped character (not including the backslash)
		 * @param {boolean} [disableEscapeBackslashSuggest] `true` if escapeBackslash suggestion should be turned off.
		 * @returns {void}
		 */
		function report(
			node,
			startOffset,
			character,
			disableEscapeBackslashSuggest,
		) {
			const rangeStart = node.range[0] + startOffset;
			const range = [rangeStart, rangeStart + 1];
			const start = sourceCode.getLocFromIndex(rangeStart);

context.report({
				node,
				loc: {
					start,
					end: { line: start.line, column: start.column + 1 },
				},
				messageId: "unnecessaryEscape",
				data: { character },
				suggest: [
					{
						// Removing unnecessary `\` characters in a directive is not guaranteed to maintain functionality.
						messageId: astUtils.isDirective(node.parent)
							? "removeEscapeDoNotKeepSemantics"
							: "removeEscape",
						fix(fixer) {
							return fixer.removeRange(range);
						},
					},
					...(disableEscapeBackslashSuggest
						? []
						: [
								{
									messageId: "escapeBackslash",
									fix(fixer) {
										return fixer.insertTextBeforeRange(
											range,
											"\\",
										);
									},
								},
							]),
				],
			});
		}

/**
		 * Checks if the escape character in given string slice is unnecessary.
		 * @private
		 * @param {ASTNode} node node to validate.
		 * @param {string} match string slice to validate.
		 * @returns {void}
		 */
		function validateString(node, match) {
			const isTemplateElement = node.type === "TemplateElement";
			const escapedChar = match[0][1];
			let isUnnecessaryEscape = !VALID_STRING_ESCAPES.has(escapedChar);
			let isQuoteEscape;

if (isTemplateElement) {
				isQuoteEscape = escapedChar === "`";

if (escapedChar === "$") {
					// Warn if `\$` is not followed by `{`
					isUnnecessaryEscape = match.input[match.index + 2] !== "{";
				} else if (escapedChar === "{") {
					/*
					 * Warn if `\{` is not preceded by `$`. If preceded by `$`, escaping
					 * is necessary and the rule should not warn. If preceded by `/$`, the rule
					 * will warn for the `/$` instead, as it is the first unnecessarily escaped character.
					 */
					isUnnecessaryEscape = match.input[match.index - 1] !== "$";
				}
			} else {
				isQuoteEscape = escapedChar === node.raw[0];
			}

if (isUnnecessaryEscape && !isQuoteEscape) {
				report(node, match.index, match[0].slice(1));
			}
		}

/**
		 * Checks if the escape character in given regexp is unnecessary.
		 * @private
		 * @param {ASTNode} node node to validate.
		 * @returns {void}
		 */
		function validateRegExp(node) {
			const { pattern, flags } = node.regex;
			let patternNode;
			const unicode = flags.includes("u");
			const unicodeSets = flags.includes("v");

try {
				patternNode = parser.parsePattern(pattern, 0, pattern.length, {
					unicode,
					unicodeSets,
				});
			} catch {
				// Ignore regular expressions with syntax errors
				return;
			}

/** @type {(CharacterClass | ExpressionCharacterClass)[]} */
			const characterClassStack = [];

visitRegExpAST(patternNode, {
				onCharacterClassEnter: characterClassNode =>
					characterClassStack.unshift(characterClassNode),
				onCharacterClassLeave: () => characterClassStack.shift(),
				onExpressionCharacterClassEnter: characterClassNode =>
					characterClassStack.unshift(characterClassNode),
				onExpressionCharacterClassLeave: () =>
					characterClassStack.shift(),
				onCharacterEnter(characterNode) {
					if (!characterNode.raw.startsWith("\\")) {
						// It's not an escaped character.
						return;
					}

const escapedChar = characterNode.raw.slice(1);

if (
						escapedChar !==
							String.fromCodePoint(characterNode.value) ||
						allowRegexCharacters.includes(escapedChar)
					) {
						// It's a valid escape.
						return;
					}
					let allowedEscapes;

if (characterClassStack.length) {
						allowedEscapes = unicodeSets
							? REGEX_CLASSSET_CHARACTER_ESCAPES
							: REGEX_GENERAL_ESCAPES;
					} else {
						allowedEscapes = REGEX_NON_CHARCLASS_ESCAPES;
					}
					if (allowedEscapes.has(escapedChar)) {
						return;
					}

const reportedIndex = characterNode.start + 1;
					let disableEscapeBackslashSuggest = false;

if (characterClassStack.length) {
						const characterClassNode = characterClassStack[0];

if (escapedChar === "^") {
							/*
							 * The '^' character is also a special case; it must always be escaped outside of character classes, but
							 * it only needs to be escaped in character classes if it's at the beginning of the character class. To
							 * account for this, consider it to be a valid escape character outside of character classes, and filter
							 * out '^' characters that appear at the start of a character class.
							 */
							if (
								characterClassNode.start + 1 ===
								characterNode.start
							) {
								return;
							}
						}
						if (!unicodeSets) {
							if (escapedChar === "-") {
								/*
								 * The '-' character is a special case, because it's only valid to escape it if it's in a character
								 * class, and is not at either edge of the character class. To account for this, don't consider '-'
								 * characters to be valid in general, and filter out '-' characters that appear in the middle of a
								 * character class.
								 */
								if (
									characterClassNode.start + 1 !==
										characterNode.start &&
									characterNode.end !==
										characterClassNode.end - 1
								) {
									return;
								}
							}
						} else {
							// unicodeSets mode
							if (
								REGEX_CLASS_SET_RESERVED_DOUBLE_PUNCTUATOR.has(
									escapedChar,
								)
							) {
								// Escaping is valid if it is a ClassSetReservedDoublePunctuator.
								if (
									pattern[characterNode.end] === escapedChar
								) {
									return;
								}
								if (
									pattern[characterNode.start - 1] ===
									escapedChar
								) {
									if (escapedChar !== "^") {
										return;
									}

// If the previous character is a `negate` caret(`^`), escape to caret is unnecessary.

if (!characterClassNode.negate) {
										return;
									}
									const negateCaretIndex =
										characterClassNode.start + 1;

if (
										negateCaretIndex <
										characterNode.start - 1
									) {
										return;
									}
								}
							}

if (
								characterNode.parent.type ===
									"ClassIntersection" ||
								characterNode.parent.type === "ClassSubtraction"
							) {
								disableEscapeBackslashSuggest = true;
							}
						}
					}

report(
						node,
						reportedIndex,
						escapedChar,
						disableEscapeBackslashSuggest,
					);
				},
			});
		}

/**
		 * Checks if a node has an escape.
		 * @param {ASTNode} node node to check.
		 * @returns {void}
		 */
		function check(node) {
			const isTemplateElement = node.type === "TemplateElement";

if (
				isTemplateElement &&
				node.parent &&
				node.parent.parent &&
				node.parent.parent.type === "TaggedTemplateExpression" &&
				node.parent === node.parent.parent.quasi
			) {
				// Don't report tagged template literals, because the backslash character is accessible to the tag function.
				return;
			}

if (typeof node.value === "string" || isTemplateElement) {
				/*
				 * JSXAttribute doesn't have any escape sequence: https://facebook.github.io/jsx/.
				 * In addition, backticks are not supported by JSX yet: https://github.com/facebook/jsx/issues/25.
				 */
				if (
					node.parent.type === "JSXAttribute" ||
					node.parent.type === "JSXElement" ||
					node.parent.type === "JSXFragment"
				) {
					return;
				}

const value = isTemplateElement
					? sourceCode.getText(node)
					: node.raw;
				const pattern = /\\\D/gu;
				let match;

while ((match = pattern.exec(value))) {
					validateString(node, match);
				}
			} else if (node.regex) {
				validateRegExp(node);
			}
		}

return {
			Literal: check,
			TemplateElement: check,
		};
	},
};

cmd: