> references to very old systems that did already this Here's one: Alice Pascal > In a syntax directed editor, you edit a program, not a piece of text. The ed

> references to very old systems that did already this Here's one: Alice Pascal > In a syntax directed editor, you edit a program, not a piece of text. The editor works directly on the program as a tree -- matching the syntax trees by which the language is structured. The units you work with are not lines and characters but terms, expressions, statements and blocks. https://www.templetons.com/brad/alice.html https://www.templetons.com/brad/alice.html