82 lines
3.4 KiB
JavaScript
82 lines
3.4 KiB
JavaScript
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.tokenizeClass = exports.strToChars = void 0;
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const types_1 = require("./types");
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const sets = __importStar(require("./sets"));
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const CTRL = '@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^ ?';
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/**
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* Finds character representations in str and convert all to
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* their respective characters.
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*
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* @param {string} str
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* @returns {string}
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*/
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exports.strToChars = (str) => {
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const charsRegex = /(\[\\b\])|(\\)?\\(?:u([A-F0-9]{4})|x([A-F0-9]{2})|c([@A-Z[\\\]^?])|([0tnvfr]))/g;
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return str.replace(charsRegex, (s, b, lbs, a16, b16, dctrl, eslsh) => {
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if (lbs) {
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return s;
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}
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let code = b ? 8 :
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a16 ? parseInt(a16, 16) :
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b16 ? parseInt(b16, 16) :
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dctrl ? CTRL.indexOf(dctrl) : {
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0: 0,
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t: 9,
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n: 10,
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v: 11,
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f: 12,
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r: 13,
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}[eslsh];
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let c = String.fromCharCode(code);
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// Escape special regex characters.
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return /[[\]{}^$.|?*+()]/.test(c) ? `\\${c}` : c;
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});
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};
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/**
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* Turns class into tokens
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* reads str until it encounters a ] not preceeded by a \
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*
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* @param {string} str
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* @param {string} regexpStr
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* @returns {Array.<Array.<Object>, number>}
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*/
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exports.tokenizeClass = (str, regexpStr) => {
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var _a, _b, _c, _d, _e, _f, _g;
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let tokens = [], rs, c;
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const regexp = /\\(?:(w)|(d)|(s)|(W)|(D)|(S))|((?:(?:\\)(.)|([^\]\\]))-(((?:\\)])|(((?:\\)?([^\]])))))|(\])|(?:\\)?([^])/g;
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while ((rs = regexp.exec(str)) !== null) {
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const p = (_g = (_f = (_e = (_d = (_c = (_b = (_a = (rs[1] && sets.words())) !== null && _a !== void 0 ? _a : (rs[2] && sets.ints())) !== null && _b !== void 0 ? _b : (rs[3] && sets.whitespace())) !== null && _c !== void 0 ? _c : (rs[4] && sets.notWords())) !== null && _d !== void 0 ? _d : (rs[5] && sets.notInts())) !== null && _e !== void 0 ? _e : (rs[6] && sets.notWhitespace())) !== null && _f !== void 0 ? _f : (rs[7] && {
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type: types_1.types.RANGE,
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from: (rs[8] || rs[9]).charCodeAt(0),
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to: (c = rs[10]).charCodeAt(c.length - 1),
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})) !== null && _g !== void 0 ? _g : ((c = rs[16]) && { type: types_1.types.CHAR, value: c.charCodeAt(0) });
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if (p) {
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tokens.push(p);
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}
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else {
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return [tokens, regexp.lastIndex];
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}
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}
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throw new SyntaxError(`Invalid regular expression: /${regexpStr}/: Unterminated character class`);
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};
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//# sourceMappingURL=util.js.map
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