Greasy Fork

/* eslint-disable no-multi-spaces */// ==UserScript==// @name               URL Encoder// @namespace          URL-Encoder// @version            0.2.2// @description        URL encode and decode for non-utf8 encodings// @author             EtherDream, PY-DNG// @license            MIT// ==/UserScript==let $URL = (function () {const str2big5 = (function () {'use strict'let table;return str2big5;function initBig5Table() {// https://en.wikipedia.org/wiki/Big5const ranges = [[0xA1, 0xF9, 0x40, 0x7E],[0xA1, 0xF9, 0xA1, 0xFE],]const codePoints = new Uint16Array(13973); // 13973 === (0xF9-0xA1+1)*(0x7E-0x40+1 + 0xFE-0xA1+1)let i = 0;for (const [b1Begin, b1End, b2Begin, b2End] of ranges) {for (let b2 = b2Begin; b2 <= b2End; b2++) {for (let b1 = b1Begin; b1 <= b1End; b1++) {codePoints[i++] = b2 << 8 | b1;}}}table = {};const str = [...new TextDecoder('big5').decode(codePoints)];for (let i = 0; i < str.length; i++) {table[str[i].charCodeAt(0)] = codePoints[i];}}function str2big5(str) {if (!table) {initBig5Table();}const buf = [];for (let i = 0; i < str.length; i++) {const codePoint = str.codePointAt(i);const code = String.fromCodePoint(codePoint);i += code.length-1;if (codePoint < 0x80) {buf.push(codePoint);continue;}const big5 = table[codePoint];if (table.hasOwnProperty(codePoint)) {const uarr = new Uint8Array(2);uarr[0] = big5;uarr[1] = big5 >> 8;buf.push(uarr[0], uarr[1]);} else {const encoded = str2big5(`&#${codePoint};`);for (const charcode of encoded) {buf.push(charcode);}}}return buf;}}) ();const str2gbk = (function () {'use strict'let table;return str2gbk;function initGbkTable() {// https://en.wikipedia.org/wiki/GBK_(character_encoding)#Encodingconst ranges = [[0xA1, 0xA9, 0xA1, 0xFE],[0xB0, 0xF7, 0xA1, 0xFE],[0x81, 0xA0, 0x40, 0xFE],[0xAA, 0xFE, 0x40, 0xA0],[0xA8, 0xA9, 0x40, 0xA0],[0xAA, 0xAF, 0xA1, 0xFE],[0xF8, 0xFE, 0xA1, 0xFE],[0xA1, 0xA7, 0x40, 0xA0],]const codePoints = new Uint16Array(23940);let i = 0;for (const [b1Begin, b1End, b2Begin, b2End] of ranges) {for (let b2 = b2Begin; b2 <= b2End; b2++) {if (b2 !== 0x7F) {for (let b1 = b1Begin; b1 <= b1End; b1++) {codePoints[i++] = b2 << 8 | b1;}}}}table = {}const str = [...new TextDecoder('gbk').decode(codePoints)];for (let i = 0; i < str.length; i++) {table[str[i].charCodeAt(0)] = codePoints[i];}}function str2gbk(str, opt = {}) {if (!table) {initGbkTable();}const buf = [];for (let i = 0; i < str.length; i++) {const codePoint = str.codePointAt(i);const code = String.fromCodePoint(codePoint);i += code.length-1;if (codePoint < 0x80) {buf.push(codePoint);continue;}const gbk = table[codePoint];if (table.hasOwnProperty(codePoint)) {const uarr = new Uint8Array(2);uarr[0] = gbk;uarr[1] = gbk >> 8;buf.push(uarr[0], uarr[1]);} else if (codePoint === 8364) {// 8364 == '€'.charCodeAt(0)// Code Page 936 has a single-byte euro sign at 0x80buf.push(0x80);} else {const encoded = str2gbk(`&#${codePoint};`);for (const charcode of encoded) {buf.push(charcode);}}}return buf;}}) ();const docEncoding = document.characterSet.toLowerCase();const encoder = {big5: {encode: str => arr2url(str2big5(str)),decode: url => decodeURL(url, 'big5'),encodeBuffer: str => arr2buf(str2big5(str))},gbk: {encode: str => arr2url(str2gbk(str)),decode: url => decodeURL(url, 'gbk'),encodeBuffer: str => arr2buf(str2gbk(str))},get encode() { return encoder[docEncoding].encode; },get decode() { return encoder[docEncoding].decode; },get encodeBuffer() { return encoder[docEncoding].encodeBuffer; },};return encoder;function arr2url(buf) {return buf.map(charcode => '%' + charcode.toString(16).padStart(2, '0').toUpperCase()).join('');}function arr2buf(arr) {return arr.reduce((buf, charcode, i) => {buf[i] = charcode;return buf;}, new Uint8Array(arr.length));}function decodeURL(url, encoding) {const arr = [];let inCharcode = false, charcode = '';for (const char of url) {if (inCharcode) {charcode += char;if (charcode.length === 2) {arr.push(parseInt(charcode, 16));inCharcode = false;charcode = '';}} else if (char === '%') {inCharcode = true;} else {arr.push(char.charCodeAt(0));}}const buf = arr.reduce((buf, charcode, i) => {buf[i] = charcode;return buf;}, new Uint8Array(arr.length));return new TextDecoder(encoding).decode(buf);}})();