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Diffstat (limited to 'ext/js/data/sandbox/string-util.js')
-rw-r--r-- | ext/js/data/sandbox/string-util.js | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/ext/js/data/sandbox/string-util.js b/ext/js/data/sandbox/string-util.js deleted file mode 100644 index de6933cd..00000000 --- a/ext/js/data/sandbox/string-util.js +++ /dev/null @@ -1,76 +0,0 @@ -/* - * Copyright (C) 2021-2022 Yomichan Authors - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. - */ - -/** - * Class containing generic string utility functions. - */ -class StringUtil { - /** - * Decodes the contents of an ArrayBuffer using UTF8. - * @param {ArrayBuffer} arrayBuffer The input ArrayBuffer. - * @returns {string} A UTF8-decoded string. - */ - static arrayBufferUtf8Decode(arrayBuffer) { - try { - return new TextDecoder('utf-8').decode(arrayBuffer); - } catch (e) { - return decodeURIComponent(escape(this.arrayBufferToBinaryString(arrayBuffer))); - } - } - - /** - * Converts the contents of an ArrayBuffer to a base64 string. - * @param {ArrayBuffer} arrayBuffer The input ArrayBuffer. - * @returns {string} A base64 string representing the binary content. - */ - static arrayBufferToBase64(arrayBuffer) { - return btoa(this.arrayBufferToBinaryString(arrayBuffer)); - } - - /** - * Converts the contents of an ArrayBuffer to a binary string. - * @param {ArrayBuffer} arrayBuffer The input ArrayBuffer. - * @returns {string} A string representing the binary content. - */ - static arrayBufferToBinaryString(arrayBuffer) { - const bytes = new Uint8Array(arrayBuffer); - try { - return String.fromCharCode(...bytes); - } catch (e) { - let binary = ''; - for (let i = 0, ii = bytes.byteLength; i < ii; ++i) { - binary += String.fromCharCode(bytes[i]); - } - return binary; - } - } - - /** - * Converts a base64 string to an ArrayBuffer. - * @param {string} content The binary content string encoded in base64. - * @returns {ArrayBuffer} A new `ArrayBuffer` object corresponding to the specified content. - */ - static base64ToArrayBuffer(content) { - const binaryContent = atob(content); - const length = binaryContent.length; - const array = new Uint8Array(length); - for (let i = 0; i < length; ++i) { - array[i] = binaryContent.charCodeAt(i); - } - return array.buffer; - } -} |