The character classes are used to define what a keyword looks like. For instance, in the C language, the acceptable characters making up a symbol are the upper and lower case letters, the digits (0-9) and the underscore. ABC_DEF is a perfectly valid symbol name. In some other language, maybe the underscore is not valid; in shell scripts, the dollar sign is used to introduce a symbol but can also terminate a symbol name, e.g. $HOST$PWD. The character class definitions are pseudo-regular expressions containing character classes using the [..] notation.


"When I switched from working on DOS and Windows platforms to working on UNIX, I was quickly confronted with the problem of finding a text editor that could match the power and flexibility of the Microsoft M editor...CRiSP was the only programmers editor that: worked straight out of the box...and had an extendible command language."

Crisp Screenshots