The Semel Editor (TM)

What does The Semel Editor (TM) do for me?

The Semel Editor (TM) will not let you make a syntax error.
The Semel Editor (TM) allows you to replace the "edit, compile, debug" by detecting many issues with your semantics while staying inside The Semel Editor (TM).
The Semel Editor (TM) adds, to every expression, all parentheses which are necessary for the correct order of evaluation.
The Semel Editor (TM) shows you what you are missing, i.e. what you have left to do. For example, suppose you want to add a local variable to a function body. Once you have selected "definition of a local variable", you automatically get:
```
/* missing type */ /* missing name */;
```
whereas with a text editor, you would get no help at all.