dockimbel/Red — Issue #179: Characters not allowed in Red words: some others suggested
Author: meijeru
Created: 2011-10-12 06:25:50+00:00
State: open

The current lexer forbids the following characters: `/ , ' [ ] ( ) { } " # % $ @ :` . I suggest that the following should at least be added: `; < > ^` and possibly also back-slash `\` which is not allowed in Red/System, for compatibility. Admittedly, `;` will pop-up automatically when the treatment of end-of-line comments is added.

Another question is the treatment of special words that function as operators: `<= < <> < >= >> > + - * // /` These need probably to be screened separately, although (by analogy with REBOL) they have the datatype `word!`.