CyberChef/src/web/utils/editorUtils.mjs
2022-07-02 19:23:03 +01:00

28 lines
881 B
JavaScript

/**
* CodeMirror utilities that are relevant to both the input and output
*
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2022
* @license Apache-2.0
*/
/**
* Override for rendering special characters.
* Should mirror the toDOM function in
* https://github.com/codemirror/view/blob/main/src/special-chars.ts#L150
* But reverts the replacement of line feeds with newline control pictures.
* @param {number} code
* @param {string} desc
* @param {string} placeholder
* @returns {element}
*/
export function renderSpecialChar(code, desc, placeholder) {
const s = document.createElement("span");
// CodeMirror changes 0x0a to "NL" instead of "LF". We change it back.
s.textContent = code === 0x0a ? "\u240a" : placeholder;
s.title = desc;
s.setAttribute("aria-label", desc);
s.className = "cm-specialChar";
return s;
}