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- 'use strict';
- const object = {};
- const hasOwnProperty = object.hasOwnProperty;
- const forOwn = (object, callback) => {
- for (const key in object) {
- if (hasOwnProperty.call(object, key)) {
- callback(key, object[key]);
- }
- }
- };
- const extend = (destination, source) => {
- if (!source) {
- return destination;
- }
- forOwn(source, (key, value) => {
- destination[key] = value;
- });
- return destination;
- };
- const forEach = (array, callback) => {
- const length = array.length;
- let index = -1;
- while (++index < length) {
- callback(array[index]);
- }
- };
- const toString = object.toString;
- const isArray = Array.isArray;
- const isBuffer = Buffer.isBuffer;
- const isObject = (value) => {
-
- return toString.call(value) == '[object Object]';
- };
- const isString = (value) => {
- return typeof value == 'string' ||
- toString.call(value) == '[object String]';
- };
- const isNumber = (value) => {
- return typeof value == 'number' ||
- toString.call(value) == '[object Number]';
- };
- const isFunction = (value) => {
- return typeof value == 'function';
- };
- const isMap = (value) => {
- return toString.call(value) == '[object Map]';
- };
- const isSet = (value) => {
- return toString.call(value) == '[object Set]';
- };
- const singleEscapes = {
- '"': '\\"',
- '\'': '\\\'',
- '\\': '\\\\',
- '\b': '\\b',
- '\f': '\\f',
- '\n': '\\n',
- '\r': '\\r',
- '\t': '\\t'
-
-
- };
- const regexSingleEscape = /["'\\\b\f\n\r\t]/;
- const regexDigit = /[0-9]/;
- const regexWhitelist = /[ !#-&\(-\[\]-_a-~]/;
- const jsesc = (argument, options) => {
- const increaseIndentation = () => {
- oldIndent = indent;
- ++options.indentLevel;
- indent = options.indent.repeat(options.indentLevel)
- };
-
- const defaults = {
- 'escapeEverything': false,
- 'minimal': false,
- 'isScriptContext': false,
- 'quotes': 'single',
- 'wrap': false,
- 'es6': false,
- 'json': false,
- 'compact': true,
- 'lowercaseHex': false,
- 'numbers': 'decimal',
- 'indent': '\t',
- 'indentLevel': 0,
- '__inline1__': false,
- '__inline2__': false
- };
- const json = options && options.json;
- if (json) {
- defaults.quotes = 'double';
- defaults.wrap = true;
- }
- options = extend(defaults, options);
- if (
- options.quotes != 'single' &&
- options.quotes != 'double' &&
- options.quotes != 'backtick'
- ) {
- options.quotes = 'single';
- }
- const quote = options.quotes == 'double' ?
- '"' :
- (options.quotes == 'backtick' ?
- '`' :
- '\''
- );
- const compact = options.compact;
- const lowercaseHex = options.lowercaseHex;
- let indent = options.indent.repeat(options.indentLevel);
- let oldIndent = '';
- const inline1 = options.__inline1__;
- const inline2 = options.__inline2__;
- const newLine = compact ? '' : '\n';
- let result;
- let isEmpty = true;
- const useBinNumbers = options.numbers == 'binary';
- const useOctNumbers = options.numbers == 'octal';
- const useDecNumbers = options.numbers == 'decimal';
- const useHexNumbers = options.numbers == 'hexadecimal';
- if (json && argument && isFunction(argument.toJSON)) {
- argument = argument.toJSON();
- }
- if (!isString(argument)) {
- if (isMap(argument)) {
- if (argument.size == 0) {
- return 'new Map()';
- }
- if (!compact) {
- options.__inline1__ = true;
- options.__inline2__ = false;
- }
- return 'new Map(' + jsesc(Array.from(argument), options) + ')';
- }
- if (isSet(argument)) {
- if (argument.size == 0) {
- return 'new Set()';
- }
- return 'new Set(' + jsesc(Array.from(argument), options) + ')';
- }
- if (isBuffer(argument)) {
- if (argument.length == 0) {
- return 'Buffer.from([])';
- }
- return 'Buffer.from(' + jsesc(Array.from(argument), options) + ')';
- }
- if (isArray(argument)) {
- result = [];
- options.wrap = true;
- if (inline1) {
- options.__inline1__ = false;
- options.__inline2__ = true;
- }
- if (!inline2) {
- increaseIndentation();
- }
- forEach(argument, (value) => {
- isEmpty = false;
- if (inline2) {
- options.__inline2__ = false;
- }
- result.push(
- (compact || inline2 ? '' : indent) +
- jsesc(value, options)
- );
- });
- if (isEmpty) {
- return '[]';
- }
- if (inline2) {
- return '[' + result.join(', ') + ']';
- }
- return '[' + newLine + result.join(',' + newLine) + newLine +
- (compact ? '' : oldIndent) + ']';
- } else if (isNumber(argument)) {
- if (json) {
-
- return JSON.stringify(argument);
- }
- if (useDecNumbers) {
- return String(argument);
- }
- if (useHexNumbers) {
- let hexadecimal = argument.toString(16);
- if (!lowercaseHex) {
- hexadecimal = hexadecimal.toUpperCase();
- }
- return '0x' + hexadecimal;
- }
- if (useBinNumbers) {
- return '0b' + argument.toString(2);
- }
- if (useOctNumbers) {
- return '0o' + argument.toString(8);
- }
- } else if (!isObject(argument)) {
- if (json) {
-
-
-
- return JSON.stringify(argument) || 'null';
- }
- return String(argument);
- } else {
- result = [];
- options.wrap = true;
- increaseIndentation();
- forOwn(argument, (key, value) => {
- isEmpty = false;
- result.push(
- (compact ? '' : indent) +
- jsesc(key, options) + ':' +
- (compact ? '' : ' ') +
- jsesc(value, options)
- );
- });
- if (isEmpty) {
- return '{}';
- }
- return '{' + newLine + result.join(',' + newLine) + newLine +
- (compact ? '' : oldIndent) + '}';
- }
- }
- const string = argument;
-
- let index = -1;
- const length = string.length;
- result = '';
- while (++index < length) {
- const character = string.charAt(index);
- if (options.es6) {
- const first = string.charCodeAt(index);
- if (
- first >= 0xD800 && first <= 0xDBFF &&
- length > index + 1
- ) {
- const second = string.charCodeAt(index + 1);
- if (second >= 0xDC00 && second <= 0xDFFF) {
-
- const codePoint = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
- let hexadecimal = codePoint.toString(16);
- if (!lowercaseHex) {
- hexadecimal = hexadecimal.toUpperCase();
- }
- result += '\\u{' + hexadecimal + '}';
- ++index;
- continue;
- }
- }
- }
- if (!options.escapeEverything) {
- if (regexWhitelist.test(character)) {
-
-
- result += character;
- continue;
- }
- if (character == '"') {
- result += quote == character ? '\\"' : character;
- continue;
- }
- if (character == '`') {
- result += quote == character ? '\\`' : character;
- continue;
- }
- if (character == '\'') {
- result += quote == character ? '\\\'' : character;
- continue;
- }
- }
- if (
- character == '\0' &&
- !json &&
- !regexDigit.test(string.charAt(index + 1))
- ) {
- result += '\\0';
- continue;
- }
- if (regexSingleEscape.test(character)) {
-
- result += singleEscapes[character];
- continue;
- }
- const charCode = character.charCodeAt(0);
- if (options.minimal && charCode != 0x2028 && charCode != 0x2029) {
- result += character;
- continue;
- }
- let hexadecimal = charCode.toString(16);
- if (!lowercaseHex) {
- hexadecimal = hexadecimal.toUpperCase();
- }
- const longhand = hexadecimal.length > 2 || json;
- const escaped = '\\' + (longhand ? 'u' : 'x') +
- ('0000' + hexadecimal).slice(longhand ? -4 : -2);
- result += escaped;
- continue;
- }
- if (options.wrap) {
- result = quote + result + quote;
- }
- if (quote == '`') {
- result = result.replace(/\$\{/g, '\\\$\{');
- }
- if (options.isScriptContext) {
-
- return result
- .replace(/<\/(script|style)/gi, '<\\/$1')
- .replace(/<!--/g, json ? '\\u003C!--' : '\\x3C!--');
- }
- return result;
- };
- jsesc.version = '2.5.2';
- module.exports = jsesc;
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