From c0172154288784ee0d909c23d5babdfaeec7042d Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 21 Jul 2025 23:14:18 +0200
Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025

---
 js/com/evalx.js | 146 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 146 insertions(+)
 create mode 100644 js/com/evalx.js

diff --git a/js/com/evalx.js b/js/com/evalx.js
new file mode 100644
index 0000000..21a519f
--- /dev/null
+++ b/js/com/evalx.js
@@ -0,0 +1,146 @@
+var _eval, isBrowser, isNode, head, Module, base64Encode;
+
+var SOURCE_MAPPING_URL = 'sourceMappingUrl';
+var DATA = 'data';
+global.ERROR = undefined;
+
+// This causes code to be eval'd in the global scope
+_eval = eval;
+
+if ( typeof document !== 'undefined' ) {
+	isBrowser = true;
+	head = document.getElementsByTagName( 'head' )[0];
+} else if ( typeof process !== 'undefined' ) {
+	isNode = true;
+	Module = ( require.nodeRequire || require )( 'module' );
+}
+
+if ( typeof btoa === 'function' ) {
+	base64Encode = function ( str ) {
+		str = str.replace( /[^\x00-\x7F]/g, function ( char ) {
+			var hex = char.charCodeAt( 0 ).toString( 16 );
+			while ( hex.length < 4 ) hex = '0' + hex;
+
+			return '\\u' + hex;
+		});
+
+		return btoa( str );
+	};
+} else if ( typeof Buffer === 'function' ) {
+	base64Encode = function ( str ) {
+		return new Buffer( str, 'utf-8' ).toString( 'base64' );
+	};
+} else {
+	base64Encode = function () {};
+}
+
+function eval2 ( script, options ) {
+    var res=undefined;
+	options = options || {};
+
+	if ( options.sourceMap ) {
+		script += '\n//# ' + SOURCE_MAPPING_URL + '=data:application/json;charset=utf-8;base64,' + base64Encode( JSON.stringify( options.sourceMap ) );
+	}
+
+	else if ( options.sourceURL ) {
+		script += '\n//# sourceURL=' + options.sourceURL;
+	}
+
+	try {
+		res = eval( script );
+        ERROR=undefined;
+        return res;
+	} catch ( err ) {
+		if ( isNode ) {
+			locateErrorUsingModule( script, options.sourceURL || '' );
+			return undefined;
+		}
+
+		// In browsers, only locate syntax errors. Other errors can
+		// be located via the console in the normal fashion
+		else if ( isBrowser && err.name === 'SyntaxError' ) {
+			locateErrorUsingDataUri( script );
+			return undefined;
+		}
+
+		throw err;
+	}
+}
+
+eval2.Function = function () {
+	var i, args = [], body, wrapped, options;
+
+	i = arguments.length;
+	while ( i-- ) {
+		args[i] = arguments[i];
+	}
+
+	if ( typeof args[ args.length - 1 ] === 'object' ) {
+		options = args.pop();
+	} else {
+		options = {};
+	}
+
+	// allow an array of arguments to be passed
+	if ( args.length === 1 && Object.prototype.toString.call( args ) === '[object Array]' ) {
+		args = args[0];
+	}
+
+	if ( options.sourceMap ) {
+		options.sourceMap = clone( options.sourceMap );
+
+		// shift everything a line down, to accommodate `(function (...) {`
+		options.sourceMap.mappings = ';' + options.sourceMap.mappings;
+	}
+
+
+	body = args.pop();
+	wrapped = '(function (' + args.join( ', ' ) + ') {\n' + body + '\n})';
+
+	return eval2( wrapped, options );
+};
+
+function locateErrorUsingDataUri ( code ) {
+	var dataURI, scriptElement;
+
+	dataURI = DATA + ':text/javascript;charset=utf-8,' + encodeURIComponent( code );
+
+	scriptElement = document.createElement( 'script' );
+	scriptElement.src = dataURI;
+
+	scriptElement.onload = function () {
+		head.removeChild( scriptElement );
+	};
+
+	head.appendChild( scriptElement );
+}
+
+function locateErrorUsingModule ( code, url ) {
+	var m = new Module();
+
+	try {
+		m._compile( 'module.exports = function () {' + code + '};', url );
+	} catch ( err ) {
+        global.ERROR = err;
+		console.error( ERROR );
+		return;
+	}
+
+	m.exports();
+}
+
+function clone ( obj ) {
+	var cloned = {}, key;
+
+	for ( key in obj ) {
+		if ( obj.hasOwnProperty( key ) ) {
+			cloned[ key ] = obj[ key ];
+		}
+	}
+
+	return cloned;
+}
+
+module.exports = {
+  eval:eval2
+}