Re: [9fans] regexp doubt

[erik quanstrom <quanstro@labs.coraid.com>]

> I wasn't searching, but using it with acme's x command.
>
> > if you are doing a b3 search, you want
> >
> >        :/stat[abc]?[ ;\-]/
> >
> > just the leading : is missing.

this works for me on a buffer of "stat-\n\n\n\n"
(where \ns are newlines):

	Edit ,x/stat[abc]?[ ;\-]/p

> As I recall, if you're going to include a hyphen in a character
> class, it has to be the first character so that it isn't taken to
> indicate a range.

from regexp(6)
[...]
	In s {as in [s-s]}, the metacharacters `-',
	`]', an initial `^', and the regular expression delimiter
	must be preceded by a `\'; other metacharacters have no spe-
	cial meaning and may appear unescaped.

> maybe I'm using a buggy version of acme, because /stat[abc]?[- ;]/
> also fails with a "malformed" error. And according to the regexp(7)
> man page, you should be able to precede a '-' with a backslash.

no, the correct version is
	 /stat[abc]?[\- ;]/

- erik