cvs commit: src/gnu/usr.bin/grep grep.1

[Colin Percival]

Stefan Farfeleder wrote:
>   Modified files:
>     gnu/usr.bin/grep     grep.1 
>   Log:
>   Document [:blank:].

The text now claims that [:alnum:], [:alpha:], [:blank:] ... [:space:] ...
are self-explanatory names.  While I've managed to work out the difference
between :blank: and :space: by looking at the source code (:blank: matches
[ \t], while :space: matches [ \f\n\r\t\v] and possibly other characters
depending upon the locale), I have trouble accepting that this difference
is obvious from the names.

Could you add some text explaining this difference?

Colin Percival