vue-simple-range-slider
Version:
Change Your numeric value or numeric range value with dragging handles
1,797 lines (1,518 loc) • 138 kB
JavaScript
/*
@license
Rollup.js v2.77.0
Fri, 15 Jul 2022 10:23:18 GMT - commit 87da8ef24f61d6601dc550026fc59f8066bbb95d
https://github.com/rollup/rollup
Released under the MIT License.
*/
import require$$0$2, { resolve } from 'path';
import process$1 from 'process';
import { ensureArray, warnUnknownOptions, defaultOnWarn, objectifyOptionWithPresets, treeshakePresets, objectifyOption, generatedCodePresets, picomatch as picomatch$2, getAugmentedNamespace, fseventsImporter, createFilter, rollupInternal } from './rollup.js';
import require$$2$1, { platform } from 'os';
import require$$0$1 from 'fs';
import require$$2 from 'util';
import require$$1 from 'stream';
import require$$0$3 from 'events';
import 'perf_hooks';
import 'crypto';
const commandAliases = {
c: 'config',
d: 'dir',
e: 'external',
f: 'format',
g: 'globals',
h: 'help',
i: 'input',
m: 'sourcemap',
n: 'name',
o: 'file',
p: 'plugin',
v: 'version',
w: 'watch'
};
function mergeOptions(config, rawCommandOptions = { external: [], globals: undefined }, defaultOnWarnHandler = defaultOnWarn) {
const command = getCommandOptions(rawCommandOptions);
const inputOptions = mergeInputOptions(config, command, defaultOnWarnHandler);
const warn = inputOptions.onwarn;
if (command.output) {
Object.assign(command, command.output);
}
const outputOptionsArray = ensureArray(config.output);
if (outputOptionsArray.length === 0)
outputOptionsArray.push({});
const outputOptions = outputOptionsArray.map(singleOutputOptions => mergeOutputOptions(singleOutputOptions, command, warn));
warnUnknownOptions(command, Object.keys(inputOptions).concat(Object.keys(outputOptions[0]).filter(option => option !== 'sourcemapPathTransform'), Object.keys(commandAliases), 'config', 'environment', 'plugin', 'silent', 'failAfterWarnings', 'stdin', 'waitForBundleInput', 'configPlugin'), 'CLI flags', warn, /^_$|output$|config/);
inputOptions.output = outputOptions;
return inputOptions;
}
function getCommandOptions(rawCommandOptions) {
const external = rawCommandOptions.external && typeof rawCommandOptions.external === 'string'
? rawCommandOptions.external.split(',')
: [];
return {
...rawCommandOptions,
external,
globals: typeof rawCommandOptions.globals === 'string'
? rawCommandOptions.globals.split(',').reduce((globals, globalDefinition) => {
const [id, variableName] = globalDefinition.split(':');
globals[id] = variableName;
if (!external.includes(id)) {
external.push(id);
}
return globals;
}, Object.create(null))
: undefined
};
}
function mergeInputOptions(config, overrides, defaultOnWarnHandler) {
const getOption = (name) => { var _a; return (_a = overrides[name]) !== null && _a !== void 0 ? _a : config[name]; };
const inputOptions = {
acorn: getOption('acorn'),
acornInjectPlugins: config.acornInjectPlugins,
cache: config.cache,
context: getOption('context'),
experimentalCacheExpiry: getOption('experimentalCacheExpiry'),
external: getExternal(config, overrides),
inlineDynamicImports: getOption('inlineDynamicImports'),
input: getOption('input') || [],
makeAbsoluteExternalsRelative: getOption('makeAbsoluteExternalsRelative'),
manualChunks: getOption('manualChunks'),
maxParallelFileOps: getOption('maxParallelFileOps'),
maxParallelFileReads: getOption('maxParallelFileReads'),
moduleContext: getOption('moduleContext'),
onwarn: getOnWarn(config, defaultOnWarnHandler),
perf: getOption('perf'),
plugins: ensureArray(config.plugins),
preserveEntrySignatures: getOption('preserveEntrySignatures'),
preserveModules: getOption('preserveModules'),
preserveSymlinks: getOption('preserveSymlinks'),
shimMissingExports: getOption('shimMissingExports'),
strictDeprecations: getOption('strictDeprecations'),
treeshake: getObjectOption(config, overrides, 'treeshake', objectifyOptionWithPresets(treeshakePresets, 'treeshake', 'false, true, ')),
watch: getWatch(config, overrides)
};
warnUnknownOptions(config, Object.keys(inputOptions), 'input options', inputOptions.onwarn, /^output$/);
return inputOptions;
}
const getExternal = (config, overrides) => {
const configExternal = config.external;
return typeof configExternal === 'function'
? (source, importer, isResolved) => configExternal(source, importer, isResolved) || overrides.external.includes(source)
: ensureArray(configExternal).concat(overrides.external);
};
const getOnWarn = (config, defaultOnWarnHandler) => config.onwarn
? warning => config.onwarn(warning, defaultOnWarnHandler)
: defaultOnWarnHandler;
const getObjectOption = (config, overrides, name, objectifyValue = objectifyOption) => {
const commandOption = normalizeObjectOptionValue(overrides[name], objectifyValue);
const configOption = normalizeObjectOptionValue(config[name], objectifyValue);
if (commandOption !== undefined) {
return commandOption && { ...configOption, ...commandOption };
}
return configOption;
};
const getWatch = (config, overrides) => config.watch !== false && getObjectOption(config, overrides, 'watch');
const normalizeObjectOptionValue = (optionValue, objectifyValue) => {
if (!optionValue) {
return optionValue;
}
if (Array.isArray(optionValue)) {
return optionValue.reduce((result, value) => value && result && { ...result, ...objectifyValue(value) }, {});
}
return objectifyValue(optionValue);
};
function mergeOutputOptions(config, overrides, warn) {
const getOption = (name) => { var _a; return (_a = overrides[name]) !== null && _a !== void 0 ? _a : config[name]; };
const outputOptions = {
amd: getObjectOption(config, overrides, 'amd'),
assetFileNames: getOption('assetFileNames'),
banner: getOption('banner'),
chunkFileNames: getOption('chunkFileNames'),
compact: getOption('compact'),
dir: getOption('dir'),
dynamicImportFunction: getOption('dynamicImportFunction'),
entryFileNames: getOption('entryFileNames'),
esModule: getOption('esModule'),
exports: getOption('exports'),
extend: getOption('extend'),
externalLiveBindings: getOption('externalLiveBindings'),
file: getOption('file'),
footer: getOption('footer'),
format: getOption('format'),
freeze: getOption('freeze'),
generatedCode: getObjectOption(config, overrides, 'generatedCode', objectifyOptionWithPresets(generatedCodePresets, 'output.generatedCode', '')),
globals: getOption('globals'),
hoistTransitiveImports: getOption('hoistTransitiveImports'),
indent: getOption('indent'),
inlineDynamicImports: getOption('inlineDynamicImports'),
interop: getOption('interop'),
intro: getOption('intro'),
manualChunks: getOption('manualChunks'),
minifyInternalExports: getOption('minifyInternalExports'),
name: getOption('name'),
namespaceToStringTag: getOption('namespaceToStringTag'),
noConflict: getOption('noConflict'),
outro: getOption('outro'),
paths: getOption('paths'),
plugins: ensureArray(config.plugins),
preferConst: getOption('preferConst'),
preserveModules: getOption('preserveModules'),
preserveModulesRoot: getOption('preserveModulesRoot'),
sanitizeFileName: getOption('sanitizeFileName'),
sourcemap: getOption('sourcemap'),
sourcemapBaseUrl: getOption('sourcemapBaseUrl'),
sourcemapExcludeSources: getOption('sourcemapExcludeSources'),
sourcemapFile: getOption('sourcemapFile'),
sourcemapPathTransform: getOption('sourcemapPathTransform'),
strict: getOption('strict'),
systemNullSetters: getOption('systemNullSetters'),
validate: getOption('validate')
};
warnUnknownOptions(config, Object.keys(outputOptions), 'output options', warn);
return outputOptions;
}
var chokidar = {};
const fs$3 = require$$0$1;
const { Readable } = require$$1;
const sysPath$3 = require$$0$2;
const { promisify: promisify$3 } = require$$2;
const picomatch$1 = picomatch$2.exports;
const readdir$1 = promisify$3(fs$3.readdir);
const stat$3 = promisify$3(fs$3.stat);
const lstat$2 = promisify$3(fs$3.lstat);
const realpath$1 = promisify$3(fs$3.realpath);
/**
* @typedef {Object} EntryInfo
* @property {String} path
* @property {String} fullPath
* @property {fs.Stats=} stats
* @property {fs.Dirent=} dirent
* @property {String} basename
*/
const BANG$2 = '!';
const RECURSIVE_ERROR_CODE = 'READDIRP_RECURSIVE_ERROR';
const NORMAL_FLOW_ERRORS = new Set(['ENOENT', 'EPERM', 'EACCES', 'ELOOP', RECURSIVE_ERROR_CODE]);
const FILE_TYPE = 'files';
const DIR_TYPE = 'directories';
const FILE_DIR_TYPE = 'files_directories';
const EVERYTHING_TYPE = 'all';
const ALL_TYPES = [FILE_TYPE, DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE];
const isNormalFlowError = error => NORMAL_FLOW_ERRORS.has(error.code);
const [maj, min] = process.versions.node.split('.').slice(0, 2).map(n => Number.parseInt(n, 10));
const wantBigintFsStats = process.platform === 'win32' && (maj > 10 || (maj === 10 && min >= 5));
const normalizeFilter = filter => {
if (filter === undefined) return;
if (typeof filter === 'function') return filter;
if (typeof filter === 'string') {
const glob = picomatch$1(filter.trim());
return entry => glob(entry.basename);
}
if (Array.isArray(filter)) {
const positive = [];
const negative = [];
for (const item of filter) {
const trimmed = item.trim();
if (trimmed.charAt(0) === BANG$2) {
negative.push(picomatch$1(trimmed.slice(1)));
} else {
positive.push(picomatch$1(trimmed));
}
}
if (negative.length > 0) {
if (positive.length > 0) {
return entry =>
positive.some(f => f(entry.basename)) && !negative.some(f => f(entry.basename));
}
return entry => !negative.some(f => f(entry.basename));
}
return entry => positive.some(f => f(entry.basename));
}
};
class ReaddirpStream extends Readable {
static get defaultOptions() {
return {
root: '.',
/* eslint-disable no-unused-vars */
fileFilter: (path) => true,
directoryFilter: (path) => true,
/* eslint-enable no-unused-vars */
type: FILE_TYPE,
lstat: false,
depth: 2147483648,
alwaysStat: false
};
}
constructor(options = {}) {
super({
objectMode: true,
autoDestroy: true,
highWaterMark: options.highWaterMark || 4096
});
const opts = { ...ReaddirpStream.defaultOptions, ...options };
const { root, type } = opts;
this._fileFilter = normalizeFilter(opts.fileFilter);
this._directoryFilter = normalizeFilter(opts.directoryFilter);
const statMethod = opts.lstat ? lstat$2 : stat$3;
// Use bigint stats if it's windows and stat() supports options (node 10+).
if (wantBigintFsStats) {
this._stat = path => statMethod(path, { bigint: true });
} else {
this._stat = statMethod;
}
this._maxDepth = opts.depth;
this._wantsDir = [DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type);
this._wantsFile = [FILE_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type);
this._wantsEverything = type === EVERYTHING_TYPE;
this._root = sysPath$3.resolve(root);
this._isDirent = ('Dirent' in fs$3) && !opts.alwaysStat;
this._statsProp = this._isDirent ? 'dirent' : 'stats';
this._rdOptions = { encoding: 'utf8', withFileTypes: this._isDirent };
// Launch stream with one parent, the root dir.
this.parents = [this._exploreDir(root, 1)];
this.reading = false;
this.parent = undefined;
}
async _read(batch) {
if (this.reading) return;
this.reading = true;
try {
while (!this.destroyed && batch > 0) {
const { path, depth, files = [] } = this.parent || {};
if (files.length > 0) {
const slice = files.splice(0, batch).map(dirent => this._formatEntry(dirent, path));
for (const entry of await Promise.all(slice)) {
if (this.destroyed) return;
const entryType = await this._getEntryType(entry);
if (entryType === 'directory' && this._directoryFilter(entry)) {
if (depth <= this._maxDepth) {
this.parents.push(this._exploreDir(entry.fullPath, depth + 1));
}
if (this._wantsDir) {
this.push(entry);
batch--;
}
} else if ((entryType === 'file' || this._includeAsFile(entry)) && this._fileFilter(entry)) {
if (this._wantsFile) {
this.push(entry);
batch--;
}
}
}
} else {
const parent = this.parents.pop();
if (!parent) {
this.push(null);
break;
}
this.parent = await parent;
if (this.destroyed) return;
}
}
} catch (error) {
this.destroy(error);
} finally {
this.reading = false;
}
}
async _exploreDir(path, depth) {
let files;
try {
files = await readdir$1(path, this._rdOptions);
} catch (error) {
this._onError(error);
}
return { files, depth, path };
}
async _formatEntry(dirent, path) {
let entry;
try {
const basename = this._isDirent ? dirent.name : dirent;
const fullPath = sysPath$3.resolve(sysPath$3.join(path, basename));
entry = { path: sysPath$3.relative(this._root, fullPath), fullPath, basename };
entry[this._statsProp] = this._isDirent ? dirent : await this._stat(fullPath);
} catch (err) {
this._onError(err);
}
return entry;
}
_onError(err) {
if (isNormalFlowError(err) && !this.destroyed) {
this.emit('warn', err);
} else {
this.destroy(err);
}
}
async _getEntryType(entry) {
// entry may be undefined, because a warning or an error were emitted
// and the statsProp is undefined
const stats = entry && entry[this._statsProp];
if (!stats) {
return;
}
if (stats.isFile()) {
return 'file';
}
if (stats.isDirectory()) {
return 'directory';
}
if (stats && stats.isSymbolicLink()) {
const full = entry.fullPath;
try {
const entryRealPath = await realpath$1(full);
const entryRealPathStats = await lstat$2(entryRealPath);
if (entryRealPathStats.isFile()) {
return 'file';
}
if (entryRealPathStats.isDirectory()) {
const len = entryRealPath.length;
if (full.startsWith(entryRealPath) && full.substr(len, 1) === sysPath$3.sep) {
const recursiveError = new Error(
`Circular symlink detected: "${full}" points to "${entryRealPath}"`
);
recursiveError.code = RECURSIVE_ERROR_CODE;
return this._onError(recursiveError);
}
return 'directory';
}
} catch (error) {
this._onError(error);
}
}
}
_includeAsFile(entry) {
const stats = entry && entry[this._statsProp];
return stats && this._wantsEverything && !stats.isDirectory();
}
}
/**
* @typedef {Object} ReaddirpArguments
* @property {Function=} fileFilter
* @property {Function=} directoryFilter
* @property {String=} type
* @property {Number=} depth
* @property {String=} root
* @property {Boolean=} lstat
* @property {Boolean=} bigint
*/
/**
* Main function which ends up calling readdirRec and reads all files and directories in given root recursively.
* @param {String} root Root directory
* @param {ReaddirpArguments=} options Options to specify root (start directory), filters and recursion depth
*/
const readdirp$1 = (root, options = {}) => {
let type = options.entryType || options.type;
if (type === 'both') type = FILE_DIR_TYPE; // backwards-compatibility
if (type) options.type = type;
if (!root) {
throw new Error('readdirp: root argument is required. Usage: readdirp(root, options)');
} else if (typeof root !== 'string') {
throw new TypeError('readdirp: root argument must be a string. Usage: readdirp(root, options)');
} else if (type && !ALL_TYPES.includes(type)) {
throw new Error(`readdirp: Invalid type passed. Use one of ${ALL_TYPES.join(', ')}`);
}
options.root = root;
return new ReaddirpStream(options);
};
const readdirpPromise = (root, options = {}) => {
return new Promise((resolve, reject) => {
const files = [];
readdirp$1(root, options)
.on('data', entry => files.push(entry))
.on('end', () => resolve(files))
.on('error', error => reject(error));
});
};
readdirp$1.promise = readdirpPromise;
readdirp$1.ReaddirpStream = ReaddirpStream;
readdirp$1.default = readdirp$1;
var readdirp_1 = readdirp$1;
var anymatch$2 = {exports: {}};
/*!
* normalize-path <https://github.com/jonschlinkert/normalize-path>
*
* Copyright (c) 2014-2018, Jon Schlinkert.
* Released under the MIT License.
*/
var normalizePath$2 = function(path, stripTrailing) {
if (typeof path !== 'string') {
throw new TypeError('expected path to be a string');
}
if (path === '\\' || path === '/') return '/';
var len = path.length;
if (len <= 1) return path;
// ensure that win32 namespaces has two leading slashes, so that the path is
// handled properly by the win32 version of path.parse() after being normalized
// https://msdn.microsoft.com/library/windows/desktop/aa365247(v=vs.85).aspx#namespaces
var prefix = '';
if (len > 4 && path[3] === '\\') {
var ch = path[2];
if ((ch === '?' || ch === '.') && path.slice(0, 2) === '\\\\') {
path = path.slice(2);
prefix = '//';
}
}
var segs = path.split(/[/\\]+/);
if (stripTrailing !== false && segs[segs.length - 1] === '') {
segs.pop();
}
return prefix + segs.join('/');
};
Object.defineProperty(anymatch$2.exports, "__esModule", { value: true });
const picomatch = picomatch$2.exports;
const normalizePath$1 = normalizePath$2;
/**
* @typedef {(testString: string) => boolean} AnymatchFn
* @typedef {string|RegExp|AnymatchFn} AnymatchPattern
* @typedef {AnymatchPattern|AnymatchPattern[]} AnymatchMatcher
*/
const BANG$1 = '!';
const DEFAULT_OPTIONS = {returnIndex: false};
const arrify$1 = (item) => Array.isArray(item) ? item : [item];
/**
* @param {AnymatchPattern} matcher
* @param {object} options
* @returns {AnymatchFn}
*/
const createPattern = (matcher, options) => {
if (typeof matcher === 'function') {
return matcher;
}
if (typeof matcher === 'string') {
const glob = picomatch(matcher, options);
return (string) => matcher === string || glob(string);
}
if (matcher instanceof RegExp) {
return (string) => matcher.test(string);
}
return (string) => false;
};
/**
* @param {Array<Function>} patterns
* @param {Array<Function>} negPatterns
* @param {String|Array} args
* @param {Boolean} returnIndex
* @returns {boolean|number}
*/
const matchPatterns = (patterns, negPatterns, args, returnIndex) => {
const isList = Array.isArray(args);
const _path = isList ? args[0] : args;
if (!isList && typeof _path !== 'string') {
throw new TypeError('anymatch: second argument must be a string: got ' +
Object.prototype.toString.call(_path))
}
const path = normalizePath$1(_path);
for (let index = 0; index < negPatterns.length; index++) {
const nglob = negPatterns[index];
if (nglob(path)) {
return returnIndex ? -1 : false;
}
}
const applied = isList && [path].concat(args.slice(1));
for (let index = 0; index < patterns.length; index++) {
const pattern = patterns[index];
if (isList ? pattern(...applied) : pattern(path)) {
return returnIndex ? index : true;
}
}
return returnIndex ? -1 : false;
};
/**
* @param {AnymatchMatcher} matchers
* @param {Array|string} testString
* @param {object} options
* @returns {boolean|number|Function}
*/
const anymatch$1 = (matchers, testString, options = DEFAULT_OPTIONS) => {
if (matchers == null) {
throw new TypeError('anymatch: specify first argument');
}
const opts = typeof options === 'boolean' ? {returnIndex: options} : options;
const returnIndex = opts.returnIndex || false;
// Early cache for matchers.
const mtchers = arrify$1(matchers);
const negatedGlobs = mtchers
.filter(item => typeof item === 'string' && item.charAt(0) === BANG$1)
.map(item => item.slice(1))
.map(item => picomatch(item, opts));
const patterns = mtchers
.filter(item => typeof item !== 'string' || (typeof item === 'string' && item.charAt(0) !== BANG$1))
.map(matcher => createPattern(matcher, opts));
if (testString == null) {
return (testString, ri = false) => {
const returnIndex = typeof ri === 'boolean' ? ri : false;
return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
}
}
return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
};
anymatch$1.default = anymatch$1;
anymatch$2.exports = anymatch$1;
/*!
* is-extglob <https://github.com/jonschlinkert/is-extglob>
*
* Copyright (c) 2014-2016, Jon Schlinkert.
* Licensed under the MIT License.
*/
var isExtglob$1 = function isExtglob(str) {
if (typeof str !== 'string' || str === '') {
return false;
}
var match;
while ((match = /(\\).|([@?!+*]\(.*\))/g.exec(str))) {
if (match[2]) return true;
str = str.slice(match.index + match[0].length);
}
return false;
};
/*!
* is-glob <https://github.com/jonschlinkert/is-glob>
*
* Copyright (c) 2014-2017, Jon Schlinkert.
* Released under the MIT License.
*/
var isExtglob = isExtglob$1;
var chars = { '{': '}', '(': ')', '[': ']'};
var strictCheck = function(str) {
if (str[0] === '!') {
return true;
}
var index = 0;
var pipeIndex = -2;
var closeSquareIndex = -2;
var closeCurlyIndex = -2;
var closeParenIndex = -2;
var backSlashIndex = -2;
while (index < str.length) {
if (str[index] === '*') {
return true;
}
if (str[index + 1] === '?' && /[\].+)]/.test(str[index])) {
return true;
}
if (closeSquareIndex !== -1 && str[index] === '[' && str[index + 1] !== ']') {
if (closeSquareIndex < index) {
closeSquareIndex = str.indexOf(']', index);
}
if (closeSquareIndex > index) {
if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {
return true;
}
backSlashIndex = str.indexOf('\\', index);
if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {
return true;
}
}
}
if (closeCurlyIndex !== -1 && str[index] === '{' && str[index + 1] !== '}') {
closeCurlyIndex = str.indexOf('}', index);
if (closeCurlyIndex > index) {
backSlashIndex = str.indexOf('\\', index);
if (backSlashIndex === -1 || backSlashIndex > closeCurlyIndex) {
return true;
}
}
}
if (closeParenIndex !== -1 && str[index] === '(' && str[index + 1] === '?' && /[:!=]/.test(str[index + 2]) && str[index + 3] !== ')') {
closeParenIndex = str.indexOf(')', index);
if (closeParenIndex > index) {
backSlashIndex = str.indexOf('\\', index);
if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {
return true;
}
}
}
if (pipeIndex !== -1 && str[index] === '(' && str[index + 1] !== '|') {
if (pipeIndex < index) {
pipeIndex = str.indexOf('|', index);
}
if (pipeIndex !== -1 && str[pipeIndex + 1] !== ')') {
closeParenIndex = str.indexOf(')', pipeIndex);
if (closeParenIndex > pipeIndex) {
backSlashIndex = str.indexOf('\\', pipeIndex);
if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {
return true;
}
}
}
}
if (str[index] === '\\') {
var open = str[index + 1];
index += 2;
var close = chars[open];
if (close) {
var n = str.indexOf(close, index);
if (n !== -1) {
index = n + 1;
}
}
if (str[index] === '!') {
return true;
}
} else {
index++;
}
}
return false;
};
var relaxedCheck = function(str) {
if (str[0] === '!') {
return true;
}
var index = 0;
while (index < str.length) {
if (/[*?{}()[\]]/.test(str[index])) {
return true;
}
if (str[index] === '\\') {
var open = str[index + 1];
index += 2;
var close = chars[open];
if (close) {
var n = str.indexOf(close, index);
if (n !== -1) {
index = n + 1;
}
}
if (str[index] === '!') {
return true;
}
} else {
index++;
}
}
return false;
};
var isGlob$2 = function isGlob(str, options) {
if (typeof str !== 'string' || str === '') {
return false;
}
if (isExtglob(str)) {
return true;
}
var check = strictCheck;
// optionally relax check
if (options && options.strict === false) {
check = relaxedCheck;
}
return check(str);
};
var isGlob$1 = isGlob$2;
var pathPosixDirname = require$$0$2.posix.dirname;
var isWin32 = require$$2$1.platform() === 'win32';
var slash = '/';
var backslash = /\\/g;
var enclosure = /[\{\[].*[\}\]]$/;
var globby = /(^|[^\\])([\{\[]|\([^\)]+$)/;
var escaped = /\\([\!\*\?\|\[\]\(\)\{\}])/g;
/**
* @param {string} str
* @param {Object} opts
* @param {boolean} [opts.flipBackslashes=true]
* @returns {string}
*/
var globParent$1 = function globParent(str, opts) {
var options = Object.assign({ flipBackslashes: true }, opts);
// flip windows path separators
if (options.flipBackslashes && isWin32 && str.indexOf(slash) < 0) {
str = str.replace(backslash, slash);
}
// special case for strings ending in enclosure containing path separator
if (enclosure.test(str)) {
str += slash;
}
// preserves full path in case of trailing path separator
str += 'a';
// remove path parts that are globby
do {
str = pathPosixDirname(str);
} while (isGlob$1(str) || globby.test(str));
// remove escape chars and return result
return str.replace(escaped, '$1');
};
var utils$3 = {};
(function (exports) {
exports.isInteger = num => {
if (typeof num === 'number') {
return Number.isInteger(num);
}
if (typeof num === 'string' && num.trim() !== '') {
return Number.isInteger(Number(num));
}
return false;
};
/**
* Find a node of the given type
*/
exports.find = (node, type) => node.nodes.find(node => node.type === type);
/**
* Find a node of the given type
*/
exports.exceedsLimit = (min, max, step = 1, limit) => {
if (limit === false) return false;
if (!exports.isInteger(min) || !exports.isInteger(max)) return false;
return ((Number(max) - Number(min)) / Number(step)) >= limit;
};
/**
* Escape the given node with '\\' before node.value
*/
exports.escapeNode = (block, n = 0, type) => {
let node = block.nodes[n];
if (!node) return;
if ((type && node.type === type) || node.type === 'open' || node.type === 'close') {
if (node.escaped !== true) {
node.value = '\\' + node.value;
node.escaped = true;
}
}
};
/**
* Returns true if the given brace node should be enclosed in literal braces
*/
exports.encloseBrace = node => {
if (node.type !== 'brace') return false;
if ((node.commas >> 0 + node.ranges >> 0) === 0) {
node.invalid = true;
return true;
}
return false;
};
/**
* Returns true if a brace node is invalid.
*/
exports.isInvalidBrace = block => {
if (block.type !== 'brace') return false;
if (block.invalid === true || block.dollar) return true;
if ((block.commas >> 0 + block.ranges >> 0) === 0) {
block.invalid = true;
return true;
}
if (block.open !== true || block.close !== true) {
block.invalid = true;
return true;
}
return false;
};
/**
* Returns true if a node is an open or close node
*/
exports.isOpenOrClose = node => {
if (node.type === 'open' || node.type === 'close') {
return true;
}
return node.open === true || node.close === true;
};
/**
* Reduce an array of text nodes.
*/
exports.reduce = nodes => nodes.reduce((acc, node) => {
if (node.type === 'text') acc.push(node.value);
if (node.type === 'range') node.type = 'text';
return acc;
}, []);
/**
* Flatten an array
*/
exports.flatten = (...args) => {
const result = [];
const flat = arr => {
for (let i = 0; i < arr.length; i++) {
let ele = arr[i];
Array.isArray(ele) ? flat(ele) : ele !== void 0 && result.push(ele);
}
return result;
};
flat(args);
return result;
};
} (utils$3));
const utils$2 = utils$3;
var stringify$4 = (ast, options = {}) => {
let stringify = (node, parent = {}) => {
let invalidBlock = options.escapeInvalid && utils$2.isInvalidBrace(parent);
let invalidNode = node.invalid === true && options.escapeInvalid === true;
let output = '';
if (node.value) {
if ((invalidBlock || invalidNode) && utils$2.isOpenOrClose(node)) {
return '\\' + node.value;
}
return node.value;
}
if (node.value) {
return node.value;
}
if (node.nodes) {
for (let child of node.nodes) {
output += stringify(child);
}
}
return output;
};
return stringify(ast);
};
/*!
* is-number <https://github.com/jonschlinkert/is-number>
*
* Copyright (c) 2014-present, Jon Schlinkert.
* Released under the MIT License.
*/
var isNumber$2 = function(num) {
if (typeof num === 'number') {
return num - num === 0;
}
if (typeof num === 'string' && num.trim() !== '') {
return Number.isFinite ? Number.isFinite(+num) : isFinite(+num);
}
return false;
};
/*!
* to-regex-range <https://github.com/micromatch/to-regex-range>
*
* Copyright (c) 2015-present, Jon Schlinkert.
* Released under the MIT License.
*/
const isNumber$1 = isNumber$2;
const toRegexRange$1 = (min, max, options) => {
if (isNumber$1(min) === false) {
throw new TypeError('toRegexRange: expected the first argument to be a number');
}
if (max === void 0 || min === max) {
return String(min);
}
if (isNumber$1(max) === false) {
throw new TypeError('toRegexRange: expected the second argument to be a number.');
}
let opts = { relaxZeros: true, ...options };
if (typeof opts.strictZeros === 'boolean') {
opts.relaxZeros = opts.strictZeros === false;
}
let relax = String(opts.relaxZeros);
let shorthand = String(opts.shorthand);
let capture = String(opts.capture);
let wrap = String(opts.wrap);
let cacheKey = min + ':' + max + '=' + relax + shorthand + capture + wrap;
if (toRegexRange$1.cache.hasOwnProperty(cacheKey)) {
return toRegexRange$1.cache[cacheKey].result;
}
let a = Math.min(min, max);
let b = Math.max(min, max);
if (Math.abs(a - b) === 1) {
let result = min + '|' + max;
if (opts.capture) {
return `(${result})`;
}
if (opts.wrap === false) {
return result;
}
return `(?:${result})`;
}
let isPadded = hasPadding(min) || hasPadding(max);
let state = { min, max, a, b };
let positives = [];
let negatives = [];
if (isPadded) {
state.isPadded = isPadded;
state.maxLen = String(state.max).length;
}
if (a < 0) {
let newMin = b < 0 ? Math.abs(b) : 1;
negatives = splitToPatterns(newMin, Math.abs(a), state, opts);
a = state.a = 0;
}
if (b >= 0) {
positives = splitToPatterns(a, b, state, opts);
}
state.negatives = negatives;
state.positives = positives;
state.result = collatePatterns(negatives, positives);
if (opts.capture === true) {
state.result = `(${state.result})`;
} else if (opts.wrap !== false && (positives.length + negatives.length) > 1) {
state.result = `(?:${state.result})`;
}
toRegexRange$1.cache[cacheKey] = state;
return state.result;
};
function collatePatterns(neg, pos, options) {
let onlyNegative = filterPatterns(neg, pos, '-', false) || [];
let onlyPositive = filterPatterns(pos, neg, '', false) || [];
let intersected = filterPatterns(neg, pos, '-?', true) || [];
let subpatterns = onlyNegative.concat(intersected).concat(onlyPositive);
return subpatterns.join('|');
}
function splitToRanges(min, max) {
let nines = 1;
let zeros = 1;
let stop = countNines(min, nines);
let stops = new Set([max]);
while (min <= stop && stop <= max) {
stops.add(stop);
nines += 1;
stop = countNines(min, nines);
}
stop = countZeros(max + 1, zeros) - 1;
while (min < stop && stop <= max) {
stops.add(stop);
zeros += 1;
stop = countZeros(max + 1, zeros) - 1;
}
stops = [...stops];
stops.sort(compare);
return stops;
}
/**
* Convert a range to a regex pattern
* @param {Number} `start`
* @param {Number} `stop`
* @return {String}
*/
function rangeToPattern(start, stop, options) {
if (start === stop) {
return { pattern: start, count: [], digits: 0 };
}
let zipped = zip(start, stop);
let digits = zipped.length;
let pattern = '';
let count = 0;
for (let i = 0; i < digits; i++) {
let [startDigit, stopDigit] = zipped[i];
if (startDigit === stopDigit) {
pattern += startDigit;
} else if (startDigit !== '0' || stopDigit !== '9') {
pattern += toCharacterClass(startDigit, stopDigit);
} else {
count++;
}
}
if (count) {
pattern += options.shorthand === true ? '\\d' : '[0-9]';
}
return { pattern, count: [count], digits };
}
function splitToPatterns(min, max, tok, options) {
let ranges = splitToRanges(min, max);
let tokens = [];
let start = min;
let prev;
for (let i = 0; i < ranges.length; i++) {
let max = ranges[i];
let obj = rangeToPattern(String(start), String(max), options);
let zeros = '';
if (!tok.isPadded && prev && prev.pattern === obj.pattern) {
if (prev.count.length > 1) {
prev.count.pop();
}
prev.count.push(obj.count[0]);
prev.string = prev.pattern + toQuantifier(prev.count);
start = max + 1;
continue;
}
if (tok.isPadded) {
zeros = padZeros(max, tok, options);
}
obj.string = zeros + obj.pattern + toQuantifier(obj.count);
tokens.push(obj);
start = max + 1;
prev = obj;
}
return tokens;
}
function filterPatterns(arr, comparison, prefix, intersection, options) {
let result = [];
for (let ele of arr) {
let { string } = ele;
// only push if _both_ are negative...
if (!intersection && !contains(comparison, 'string', string)) {
result.push(prefix + string);
}
// or _both_ are positive
if (intersection && contains(comparison, 'string', string)) {
result.push(prefix + string);
}
}
return result;
}
/**
* Zip strings
*/
function zip(a, b) {
let arr = [];
for (let i = 0; i < a.length; i++) arr.push([a[i], b[i]]);
return arr;
}
function compare(a, b) {
return a > b ? 1 : b > a ? -1 : 0;
}
function contains(arr, key, val) {
return arr.some(ele => ele[key] === val);
}
function countNines(min, len) {
return Number(String(min).slice(0, -len) + '9'.repeat(len));
}
function countZeros(integer, zeros) {
return integer - (integer % Math.pow(10, zeros));
}
function toQuantifier(digits) {
let [start = 0, stop = ''] = digits;
if (stop || start > 1) {
return `{${start + (stop ? ',' + stop : '')}}`;
}
return '';
}
function toCharacterClass(a, b, options) {
return `[${a}${(b - a === 1) ? '' : '-'}${b}]`;
}
function hasPadding(str) {
return /^-?(0+)\d/.test(str);
}
function padZeros(value, tok, options) {
if (!tok.isPadded) {
return value;
}
let diff = Math.abs(tok.maxLen - String(value).length);
let relax = options.relaxZeros !== false;
switch (diff) {
case 0:
return '';
case 1:
return relax ? '0?' : '0';
case 2:
return relax ? '0{0,2}' : '00';
default: {
return relax ? `0{0,${diff}}` : `0{${diff}}`;
}
}
}
/**
* Cache
*/
toRegexRange$1.cache = {};
toRegexRange$1.clearCache = () => (toRegexRange$1.cache = {});
/**
* Expose `toRegexRange`
*/
var toRegexRange_1 = toRegexRange$1;
/*!
* fill-range <https://github.com/jonschlinkert/fill-range>
*
* Copyright (c) 2014-present, Jon Schlinkert.
* Licensed under the MIT License.
*/
const util = require$$2;
const toRegexRange = toRegexRange_1;
const isObject = val => val !== null && typeof val === 'object' && !Array.isArray(val);
const transform = toNumber => {
return value => toNumber === true ? Number(value) : String(value);
};
const isValidValue = value => {
return typeof value === 'number' || (typeof value === 'string' && value !== '');
};
const isNumber = num => Number.isInteger(+num);
const zeros = input => {
let value = `${input}`;
let index = -1;
if (value[0] === '-') value = value.slice(1);
if (value === '0') return false;
while (value[++index] === '0');
return index > 0;
};
const stringify$3 = (start, end, options) => {
if (typeof start === 'string' || typeof end === 'string') {
return true;
}
return options.stringify === true;
};
const pad = (input, maxLength, toNumber) => {
if (maxLength > 0) {
let dash = input[0] === '-' ? '-' : '';
if (dash) input = input.slice(1);
input = (dash + input.padStart(dash ? maxLength - 1 : maxLength, '0'));
}
if (toNumber === false) {
return String(input);
}
return input;
};
const toMaxLen = (input, maxLength) => {
let negative = input[0] === '-' ? '-' : '';
if (negative) {
input = input.slice(1);
maxLength--;
}
while (input.length < maxLength) input = '0' + input;
return negative ? ('-' + input) : input;
};
const toSequence = (parts, options) => {
parts.negatives.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);
parts.positives.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);
let prefix = options.capture ? '' : '?:';
let positives = '';
let negatives = '';
let result;
if (parts.positives.length) {
positives = parts.positives.join('|');
}
if (parts.negatives.length) {
negatives = `-(${prefix}${parts.negatives.join('|')})`;
}
if (positives && negatives) {
result = `${positives}|${negatives}`;
} else {
result = positives || negatives;
}
if (options.wrap) {
return `(${prefix}${result})`;
}
return result;
};
const toRange = (a, b, isNumbers, options) => {
if (isNumbers) {
return toRegexRange(a, b, { wrap: false, ...options });
}
let start = String.fromCharCode(a);
if (a === b) return start;
let stop = String.fromCharCode(b);
return `[${start}-${stop}]`;
};
const toRegex = (start, end, options) => {
if (Array.isArray(start)) {
let wrap = options.wrap === true;
let prefix = options.capture ? '' : '?:';
return wrap ? `(${prefix}${start.join('|')})` : start.join('|');
}
return toRegexRange(start, end, options);
};
const rangeError = (...args) => {
return new RangeError('Invalid range arguments: ' + util.inspect(...args));
};
const invalidRange = (start, end, options) => {
if (options.strictRanges === true) throw rangeError([start, end]);
return [];
};
const invalidStep = (step, options) => {
if (options.strictRanges === true) {
throw new TypeError(`Expected step "${step}" to be a number`);
}
return [];
};
const fillNumbers = (start, end, step = 1, options = {}) => {
let a = Number(start);
let b = Number(end);
if (!Number.isInteger(a) || !Number.isInteger(b)) {
if (options.strictRanges === true) throw rangeError([start, end]);
return [];
}
// fix negative zero
if (a === 0) a = 0;
if (b === 0) b = 0;
let descending = a > b;
let startString = String(start);
let endString = String(end);
let stepString = String(step);
step = Math.max(Math.abs(step), 1);
let padded = zeros(startString) || zeros(endString) || zeros(stepString);
let maxLen = padded ? Math.max(startString.length, endString.length, stepString.length) : 0;
let toNumber = padded === false && stringify$3(start, end, options) === false;
let format = options.transform || transform(toNumber);
if (options.toRegex && step === 1) {
return toRange(toMaxLen(start, maxLen), toMaxLen(end, maxLen), true, options);
}
let parts = { negatives: [], positives: [] };
let push = num => parts[num < 0 ? 'negatives' : 'positives'].push(Math.abs(num));
let range = [];
let index = 0;
while (descending ? a >= b : a <= b) {
if (options.toRegex === true && step > 1) {
push(a);
} else {
range.push(pad(format(a, index), maxLen, toNumber));
}
a = descending ? a - step : a + step;
index++;
}
if (options.toRegex === true) {
return step > 1
? toSequence(parts, options)
: toRegex(range, null, { wrap: false, ...options });
}
return range;
};
const fillLetters = (start, end, step = 1, options = {}) => {
if ((!isNumber(start) && start.length > 1) || (!isNumber(end) && end.length > 1)) {
return invalidRange(start, end, options);
}
let format = options.transform || (val => String.fromCharCode(val));
let a = `${start}`.charCodeAt(0);
let b = `${end}`.charCodeAt(0);
let descending = a > b;
let min = Math.min(a, b);
let max = Math.max(a, b);
if (options.toRegex && step === 1) {
return toRange(min, max, false, options);
}
let range = [];
let index = 0;
while (descending ? a >= b : a <= b) {
range.push(format(a, index));
a = descending ? a - step : a + step;
index++;
}
if (options.toRegex === true) {
return toRegex(range, null, { wrap: false, options });
}
return range;
};
const fill$2 = (start, end, step, options = {}) => {
if (end == null && isValidValue(start)) {
return [start];
}
if (!isValidValue(start) || !isValidValue(end)) {
return invalidRange(start, end, options);
}
if (typeof step === 'function') {
return fill$2(start, end, 1, { transform: step });
}
if (isObject(step)) {
return fill$2(start, end, 0, step);
}
let opts = { ...options };
if (opts.capture === true) opts.wrap = true;
step = step || opts.step || 1;
if (!isNumber(step)) {
if (step != null && !isObject(step)) return invalidStep(step, opts);
return fill$2(start, end, 1, step);
}
if (isNumber(start) && isNumber(end)) {
return fillNumbers(start, end, step, opts);
}
return fillLetters(start, end, Math.max(Math.abs(step), 1), opts);
};
var fillRange = fill$2;
const fill$1 = fillRange;
const utils$1 = utils$3;
const compile$1 = (ast, options = {}) => {
let walk = (node, parent = {}) => {
let invalidBlock = utils$1.isInvalidBrace(parent);
let invalidNode = node.invalid === true && options.escapeInvalid === true;
let invalid = invalidBlock === true || invalidNode === true;
let prefix = options.escapeInvalid === true ? '\\' : '';
let output = '';
if (node.isOpen === true) {
return prefix + node.value;
}
if (node.isClose === true) {
return prefix + node.value;
}
if (node.type === 'open') {
return invalid ? (prefix + node.value) : '(';
}
if (node.type === 'close') {
return invalid ? (prefix + node.value) : ')';
}
if (node.type === 'comma') {
return node.prev.type === 'comma' ? '' : (invalid ? node.value : '|');
}
if (node.value) {
return node.value;
}
if (node.nodes && node.ranges > 0) {
let args = utils$1.reduce(node.nodes);
let range = fill$1(...args, { ...options, wrap: false, toRegex: true });
if (range.length !== 0) {
return args.length > 1 && range.length > 1 ? `(${range})` : range;
}
}
if (node.nodes) {
for (let child of node.nodes) {
output += walk(child, node);
}
}
return output;
};
return walk(ast);
};
var compile_1 = compile$1;
const fill = fillRange;
const stringify$2 = stringify$4;
const utils = utils$3;
const append = (queue = '', stash = '', enclose = false) => {
let result = [];
queue = [].concat(queue);
stash = [].concat(stash);
if (!stash.length) return queue;
if (!queue.length) {
return enclose ? utils.flatten(stash).map(ele => `{${ele}}`) : stash;
}
for (let item of queue) {
if (Array.isArray(item)) {
for (let value of item) {
result.push(append(value, stash, enclose));
}
} else {
for (let ele of stash) {
if (enclose === true && typeof ele === 'string') ele = `{${ele}}`;
result.push(Array.isArray(ele) ? append(item, ele, enclose) : (item + ele));
}
}
}
return utils.flatten(result);
};
const expand$1 = (ast, options = {}) => {
let rangeLimit = options.rangeLimit === void 0 ? 1000 : options.rangeLimit;
let walk = (node, parent = {}) => {
node.queue = [];
let p = parent;
let q = parent.queue;
while (p.type !== 'brace' && p.type !== 'root' && p.parent) {
p = p.parent;
q = p.queue;
}
if (node.invalid || node.dollar) {
q.push(append(q.pop(), stringify$2(node, options)));
return;
}
if (node.type === 'brace' && node.invalid !== true && node.nodes.length === 2) {
q.push(append(q.pop(), ['{}']));
return;
}
if (node.nodes && node.ranges > 0) {
let args = utils.reduce(node.nodes);
if (utils.exceedsLimit(...args, options.step, rangeLimit)) {
throw new RangeError('expanded array length exceeds range limit. Use options.rangeLimit to increase or disable the limit.');
}
let range = fill(...args, options);
if (range.length === 0) {
range = stringify$2(node, options);
}
q.push(append(q.pop(), range));
node.nodes = [];
return;
}
let enclose = utils.encloseBrace(node);
let queue = node.queue;
let block = node;
while (block.type !== 'brace' && block.type !== 'root' && block.parent) {
block = block.parent;
queue = block.queue;
}
for (let i = 0; i < node.nodes.length; i++) {
let child = node.nodes[i];
if (child.type === 'comma' && node.type === 'brace') {
if (i === 1) queue.push('');
queue.push('');
continue;
}
if (child.type === 'close') {
q.push(append(q.pop(), queue, enclose));
continue;
}
if (child.value && child.type !== 'open') {
queue.push(append(queue.pop(), child.value));
continue;
}
if (child.nodes) {
walk(child, node);
}
}
return queue;
};
return utils.flatten(walk(ast));
};
var expand_1 = expand$1;
var constants$1 = {
MAX_LENGTH: 1024 * 64,
// Digits
CHAR_0: '0', /* 0 */
CHAR_9: '9', /* 9 */
// Alphabet chars.
CHAR_UPPERCASE_A: 'A', /* A */
CHAR_LOWERCASE_A: 'a', /* a */
CHAR_UPPERCASE_Z: 'Z', /* Z */
CHAR_LOWERCASE_Z: 'z', /* z */
CHAR_LEFT_PARENTHESES: '(', /* ( */
CHAR_RIGHT_PARENTHESES: ')', /* ) */
CHAR_ASTERISK: '*', /* * */
// Non-alphabetic chars.
CHAR_AMPERSAND: '&', /* & */
CHAR_AT: '@', /* @ */
CHAR_BACKSLASH: '\\', /* \ */
CHAR_BACKTICK: '`', /* ` */
CHAR_CARRIAGE_RETURN: '\r', /* \r */
CHAR_CIRCUMFLEX_ACCENT: '^', /* ^ */
CHAR_COLON: ':', /* : */
CHAR_COMMA: ',', /* , */
CHAR_DOLLAR: '$', /* . */
CHAR_DOT: '.', /* . */
CHAR_DOUBLE_QUOTE: '"', /* " */
CHAR_EQUAL: '=', /* = */
CHAR_EXCLAMATION_MARK: '!', /* ! */
CHAR_FORM_FEED: '\f', /* \f */
CHAR_FORWARD_SLASH: '/', /* / */
CHAR_HASH: '#', /* # */
CHAR_HYPHEN_MINUS: '-', /* - */
CHAR_LEFT_ANGLE_BRACKET: '<', /* < */
CHAR_LEFT_CURLY_BRACE: '{', /* { */
CHAR_LEFT_SQUARE_BRACKET: '[', /* [ */
CHAR_LINE_FEED: '\n', /* \n */
CHAR_NO_BREAK_SPACE: '\u00A0', /* \u00A0 */
CHAR_PERCENT: '%', /* % */
CHAR_PLUS: '+', /* + */
CHAR_QUESTION_MARK: '?', /* ? */
CHAR_RIGHT_ANGLE_BRACKET: '>', /* > */
CHAR_RIGHT_CURLY_BRACE: '}', /* } */
CHAR_RIGHT_SQUARE_BRACKET: ']', /* ] */
CHAR_SEMICOLON: ';', /* ; */
CHAR_SINGLE_QUOTE: '\'', /* ' */
CHAR_SPACE: ' ', /* */
CHAR_TAB: '\t', /* \t */
CHAR_UNDERSCORE: '_', /* _ */
CHAR_VERTICAL_LINE: '|', /* | */
CHAR_ZERO_WIDTH_NOBREAK_SPACE: '\uFEFF' /* \uFEFF */
};
const stringify$1 = stringify$4;
/**
* Constants
*/
const {
MAX_LENGTH,
CHAR_BACKSLASH, /* \ */
CHAR_BACKTICK, /* ` */
CHAR_COMMA, /* , */
CHAR_DOT, /* . */
CHAR_LEFT_PARENTHESES, /* ( */
CHAR_RIGHT_PARENTHESES, /* ) */
CHAR_LEFT_CURLY_BRACE, /* { */
CHAR_RIGHT_CURLY_BRACE, /* } */
CHAR_LEFT_SQUARE_BRACKET, /* [ */
CHAR_RIGHT_SQUARE_BRACKET, /* ] */
CHAR_DOUBLE_QUOTE, /* " */
CHAR_SINGLE_QUOTE, /* ' */
CHAR_NO_BREAK_SPACE,
CHAR_ZERO_WIDTH_NOBREAK_SPACE
} = constants$1;
/**
* parse
*/
const parse$1 = (input, options = {}) => {
if (typeof input !== 'string') {
throw new TypeError('Expected a string');
}
let opts = options || {};
let max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
if (input.length > max) {
throw new SyntaxError(`Input length (${input.length}), exceeds max characters (${max})`);
}
let ast = { type: 'root', input, nodes: [] };
let stack = [ast];
let block = ast;
let prev = ast;
let brackets = 0;
let length = input.length;
let index = 0;
let depth = 0;
let value;
/**
* Helpers
*/
const advance = () => input[index++];
const push = node => {
if (node.type === 't