Written in Java, so it runs on Mac OS X, OS/2, Unix, VMS and Windows. Built-in macro language; extensible plugin architecture. Hundreds of macros and plugins available. Plugins can be downloaded and installed from within jEdit using the 'plugin manager' feature. Auto indent, and syntax highlighting for more than 200 languages. How to run Mac OS X on an iPhone or iPad Using an app called UTM, it’s possible to run Mac OS X Leopard — and earlier versions of Apple’s operating system — in a virtual machine.