Add web front-end and fix API issues

node_modules/shell-quote/quote.js

@@ -0,0 +1,65 @@
+'use strict';
+
+/** @import { ControlOperator } from './parse' */
+
+/** @type {ControlOperator['op'][]} */
+var OPS = /** @type {const} */ ([
+	'||',
+	'&&',
+	';;',
+	'|&',
+	'<(',
+	'<<<',
+	'>>',
+	'>&',
+	'<&',
+	'&',
+	';',
+	'(',
+	')',
+	'|',
+	'<',
+	'>'
+]);
+var LINE_TERMINATORS = /[\n\r\u2028\u2029]/;
+var GLOB_SHELL_SPECIAL = /[\s#!"$&'():;<=>@\\^`|]/g;
+
+/** @type {import('./quote')} */
+module.exports = function quote(xs) {
+	return xs.map(function (s) {
+		if (s === '') {
+			return /** @type {const} */ ('\'\'');
+		}
+		if (s && typeof s === 'object') {
+			if ('op' in s && s.op === 'glob') {
+				if (typeof s.pattern !== 'string') {
+					throw new TypeError('glob token requires a string `pattern`');
+				}
+				if (LINE_TERMINATORS.test(s.pattern)) {
+					throw new TypeError('glob `pattern` must not contain line terminators');
+				}
+				return s.pattern.replace(GLOB_SHELL_SPECIAL, '\\$&');
+			}
+			if ('op' in s && typeof s.op === 'string') {
+				if (OPS.indexOf(s.op) < 0) {
+					throw new TypeError('invalid `op` value: ' + JSON.stringify(s.op));
+				}
+				return s.op.replace(/[\s\S]/g, '\\$&');
+			}
+			if ('comment' in s && typeof s.comment === 'string') {
+				if (LINE_TERMINATORS.test(s.comment)) {
+					throw new TypeError('`comment` must not contain line terminators');
+				}
+				return '#' + s.comment;
+			}
+			throw new TypeError('unrecognized object token shape');
+		}
+		if ((/["\s\\]/).test(s) && !(/'/).test(s)) {
+			return "'" + s.replace(/(['])/g, '\\$1') + "'";
+		}
+		if ((/["'\s]/).test(s)) {
+			return '"' + s.replace(/(["\\$`!])/g, '\\$1') + '"';
+		}
+		return String(s).replace(/([A-Za-z]:)?([#!"$&'()*,:;<=>?@[\\\]^`{|}~])/g, '$1\\$2');
+	}).join(' ');
+};