299 lines
12 KiB
JavaScript
299 lines
12 KiB
JavaScript
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"use strict";
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var _interopRequireDefault = require("@babel/runtime-corejs3/helpers/interopRequireDefault");
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var _Object$defineProperty = require("@babel/runtime-corejs3/core-js-stable/object/define-property");
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_Object$defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = void 0;
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var _getIterator2 = _interopRequireDefault(require("@babel/runtime-corejs3/core-js/get-iterator"));
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var _isArray = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/array/is-array"));
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var _getIteratorMethod2 = _interopRequireDefault(require("@babel/runtime-corejs3/core-js/get-iterator-method"));
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var _symbol = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/symbol"));
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var _from = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/array/from"));
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var _slice = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/slice"));
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var _includes = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/includes"));
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var _concat = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/concat"));
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var _forEach = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/for-each"));
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function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof _symbol["default"] === "undefined" || (0, _getIteratorMethod2["default"])(o) == null) { if ((0, _isArray["default"])(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = (0, _getIterator2["default"])(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
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function _unsupportedIterableToArray(o, minLen) { var _context4; if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = (0, _slice["default"])(_context4 = Object.prototype.toString.call(o)).call(_context4, 8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return (0, _from["default"])(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
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function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
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/*!
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* XRegExp Unicode Base 4.4.1
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* <xregexp.com>
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* Steven Levithan (c) 2008-present MIT License
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*/
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var _default = function _default(XRegExp) {
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/**
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* Adds base support for Unicode matching:
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* - Adds syntax `\p{..}` for matching Unicode tokens. Tokens can be inverted using `\P{..}` or
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* `\p{^..}`. Token names ignore case, spaces, hyphens, and underscores. You can omit the
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* braces for token names that are a single letter (e.g. `\pL` or `PL`).
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* - Adds flag A (astral), which enables 21-bit Unicode support.
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* - Adds the `XRegExp.addUnicodeData` method used by other addons to provide character data.
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*
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* Unicode Base relies on externally provided Unicode character data. Official addons are
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* available to provide data for Unicode categories, scripts, blocks, and properties.
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*
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* @requires XRegExp
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*/
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// ==--------------------------==
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// Private stuff
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// ==--------------------------==
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// Storage for Unicode data
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var unicode = {}; // Reuse utils
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var dec = XRegExp._dec;
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var hex = XRegExp._hex;
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var pad4 = XRegExp._pad4; // Generates a token lookup name: lowercase, with hyphens, spaces, and underscores removed
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function normalize(name) {
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return name.replace(/[- _]+/g, '').toLowerCase();
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} // Gets the decimal code of a literal code unit, \xHH, \uHHHH, or a backslash-escaped literal
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function charCode(chr) {
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var esc = /^\\[xu](.+)/.exec(chr);
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return esc ? dec(esc[1]) : chr.charCodeAt(chr[0] === '\\' ? 1 : 0);
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} // Inverts a list of ordered BMP characters and ranges
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function invertBmp(range) {
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var output = '';
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var lastEnd = -1;
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(0, _forEach["default"])(XRegExp).call(XRegExp, range, /(\\x..|\\u....|\\?[\s\S])(?:-(\\x..|\\u....|\\?[\s\S]))?/, function (m) {
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var start = charCode(m[1]);
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if (start > lastEnd + 1) {
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output += "\\u".concat(pad4(hex(lastEnd + 1)));
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if (start > lastEnd + 2) {
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output += "-\\u".concat(pad4(hex(start - 1)));
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}
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}
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lastEnd = charCode(m[2] || m[1]);
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});
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if (lastEnd < 0xFFFF) {
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output += "\\u".concat(pad4(hex(lastEnd + 1)));
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if (lastEnd < 0xFFFE) {
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output += '-\\uFFFF';
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}
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}
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return output;
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} // Generates an inverted BMP range on first use
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function cacheInvertedBmp(slug) {
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var prop = 'b!';
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return unicode[slug][prop] || (unicode[slug][prop] = invertBmp(unicode[slug].bmp));
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} // Combines and optionally negates BMP and astral data
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function buildAstral(slug, isNegated) {
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var item = unicode[slug];
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var combined = '';
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if (item.bmp && !item.isBmpLast) {
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var _context;
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combined = (0, _concat["default"])(_context = "[".concat(item.bmp, "]")).call(_context, item.astral ? '|' : '');
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}
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if (item.astral) {
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combined += item.astral;
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}
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if (item.isBmpLast && item.bmp) {
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var _context2;
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combined += (0, _concat["default"])(_context2 = "".concat(item.astral ? '|' : '', "[")).call(_context2, item.bmp, "]");
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} // Astral Unicode tokens always match a code point, never a code unit
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return isNegated ? "(?:(?!".concat(combined, ")(?:[\uD800-\uDBFF][\uDC00-\uDFFF]|[\0-\uFFFF]))") : "(?:".concat(combined, ")");
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} // Builds a complete astral pattern on first use
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function cacheAstral(slug, isNegated) {
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var prop = isNegated ? 'a!' : 'a=';
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return unicode[slug][prop] || (unicode[slug][prop] = buildAstral(slug, isNegated));
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} // ==--------------------------==
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// Core functionality
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// ==--------------------------==
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/*
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* Add astral mode (flag A) and Unicode token syntax: `\p{..}`, `\P{..}`, `\p{^..}`, `\pC`.
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*/
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XRegExp.addToken( // Use `*` instead of `+` to avoid capturing `^` as the token name in `\p{^}`
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/\\([pP])(?:{(\^?)([^}]*)}|([A-Za-z]))/, function (match, scope, flags) {
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var ERR_DOUBLE_NEG = 'Invalid double negation ';
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var ERR_UNKNOWN_NAME = 'Unknown Unicode token ';
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var ERR_UNKNOWN_REF = 'Unicode token missing data ';
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var ERR_ASTRAL_ONLY = 'Astral mode required for Unicode token ';
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var ERR_ASTRAL_IN_CLASS = 'Astral mode does not support Unicode tokens within character classes'; // Negated via \P{..} or \p{^..}
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var isNegated = match[1] === 'P' || !!match[2]; // Switch from BMP (0-FFFF) to astral (0-10FFFF) mode via flag A
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var isAstralMode = (0, _includes["default"])(flags).call(flags, 'A'); // Token lookup name. Check `[4]` first to avoid passing `undefined` via `\p{}`
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var slug = normalize(match[4] || match[3]); // Token data object
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var item = unicode[slug];
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if (match[1] === 'P' && match[2]) {
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throw new SyntaxError(ERR_DOUBLE_NEG + match[0]);
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}
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if (!unicode.hasOwnProperty(slug)) {
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throw new SyntaxError(ERR_UNKNOWN_NAME + match[0]);
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} // Switch to the negated form of the referenced Unicode token
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if (item.inverseOf) {
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slug = normalize(item.inverseOf);
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if (!unicode.hasOwnProperty(slug)) {
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var _context3;
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throw new ReferenceError((0, _concat["default"])(_context3 = "".concat(ERR_UNKNOWN_REF + match[0], " -> ")).call(_context3, item.inverseOf));
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}
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item = unicode[slug];
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isNegated = !isNegated;
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}
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if (!(item.bmp || isAstralMode)) {
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throw new SyntaxError(ERR_ASTRAL_ONLY + match[0]);
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}
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if (isAstralMode) {
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if (scope === 'class') {
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throw new SyntaxError(ERR_ASTRAL_IN_CLASS);
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}
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return cacheAstral(slug, isNegated);
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}
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return scope === 'class' ? isNegated ? cacheInvertedBmp(slug) : item.bmp : "".concat((isNegated ? '[^' : '[') + item.bmp, "]");
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}, {
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scope: 'all',
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optionalFlags: 'A',
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leadChar: '\\'
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});
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/**
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* Adds to the list of Unicode tokens that XRegExp regexes can match via `\p` or `\P`.
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*
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* @memberOf XRegExp
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* @param {Array} data Objects with named character ranges. Each object may have properties
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* `name`, `alias`, `isBmpLast`, `inverseOf`, `bmp`, and `astral`. All but `name` are
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* optional, although one of `bmp` or `astral` is required (unless `inverseOf` is set). If
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* `astral` is absent, the `bmp` data is used for BMP and astral modes. If `bmp` is absent,
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* the name errors in BMP mode but works in astral mode. If both `bmp` and `astral` are
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* provided, the `bmp` data only is used in BMP mode, and the combination of `bmp` and
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* `astral` data is used in astral mode. `isBmpLast` is needed when a token matches orphan
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* high surrogates *and* uses surrogate pairs to match astral code points. The `bmp` and
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* `astral` data should be a combination of literal characters and `\xHH` or `\uHHHH` escape
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* sequences, with hyphens to create ranges. Any regex metacharacters in the data should be
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* escaped, apart from range-creating hyphens. The `astral` data can additionally use
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* character classes and alternation, and should use surrogate pairs to represent astral code
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* points. `inverseOf` can be used to avoid duplicating character data if a Unicode token is
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* defined as the exact inverse of another token.
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* @example
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*
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* // Basic use
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* XRegExp.addUnicodeData([{
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* name: 'XDigit',
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* alias: 'Hexadecimal',
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* bmp: '0-9A-Fa-f'
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* }]);
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* XRegExp('\\p{XDigit}:\\p{Hexadecimal}+').test('0:3D'); // -> true
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*/
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XRegExp.addUnicodeData = function (data) {
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var ERR_NO_NAME = 'Unicode token requires name';
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var ERR_NO_DATA = 'Unicode token has no character data ';
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var _iterator = _createForOfIteratorHelper(data),
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_step;
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try {
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for (_iterator.s(); !(_step = _iterator.n()).done;) {
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var item = _step.value;
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if (!item.name) {
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throw new Error(ERR_NO_NAME);
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}
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if (!(item.inverseOf || item.bmp || item.astral)) {
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throw new Error(ERR_NO_DATA + item.name);
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}
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unicode[normalize(item.name)] = item;
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if (item.alias) {
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unicode[normalize(item.alias)] = item;
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}
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} // Reset the pattern cache used by the `XRegExp` constructor, since the same pattern and
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// flags might now produce different results
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} catch (err) {
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_iterator.e(err);
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} finally {
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_iterator.f();
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}
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XRegExp.cache.flush('patterns');
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};
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/**
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* @ignore
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*
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* Return a reference to the internal Unicode definition structure for the given Unicode
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* Property if the given name is a legal Unicode Property for use in XRegExp `\p` or `\P` regex
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* constructs.
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*
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* @memberOf XRegExp
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* @param {String} name Name by which the Unicode Property may be recognized (case-insensitive),
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* e.g. `'N'` or `'Number'`. The given name is matched against all registered Unicode
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* Properties and Property Aliases.
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* @returns {Object} Reference to definition structure when the name matches a Unicode Property.
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*
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* @note
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* For more info on Unicode Properties, see also http://unicode.org/reports/tr18/#Categories.
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*
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* @note
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* This method is *not* part of the officially documented API and may change or be removed in
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* the future. It is meant for userland code that wishes to reuse the (large) internal Unicode
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* structures set up by XRegExp.
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*/
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XRegExp._getUnicodeProperty = function (name) {
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var slug = normalize(name);
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return unicode[slug];
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};
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};
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exports["default"] = _default;
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module.exports = exports.default;
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