~/test# uname -a Linux raspberrypi 4.9.0-v7+ #939 SMP Thu Dec 15 18:07:48 GMT 2016 armv7l GNU/Linux ~/test# echo . > 5AB ~/test# echo . > A5B ~/test# echo . > AB5 ~/test# echo . > 5 ~/test# echo . > ABC ~/test# ll *[1-9]* -rw-r--r-- 1 root root 2 Jan 4 12:11 5 -rw-r--r-- 1 root root 2 Jan 4 12:10 5AB -rw-r--r-- 1 root root 2 Jan 4 12:10 A5B -rw-r--r-- 1 root root 2 Jan 4 12:11 AB5 ~/test# ll *[^1-9]* -rw-r--r-- 1 root root 2 Jan 4 12:10 5AB -rw-r--r-- 1 root root 2 Jan 4 12:10 A5B -rw-r--r-- 1 root root 2 Jan 4 12:11 AB5 -rw-r--r-- 1 root root 2 Jan 4 12:11 ABC
> -----Original Message----- > From: sqlite-users [mailto:sqlite-users-boun...@mailinglists.sqlite.org] > On Behalf Of R Smith > Sent: Wednesday, 4 January, 2017 10:52 > To: sqlite-users@mailinglists.sqlite.org > Subject: Re: [sqlite] SQLite3 Tutorial error > > > > On 2017/01/04 7:01 PM, Jens Alfke wrote: > >> On Jan 4, 2017, at 5:57 AM, R Smith <rsm...@rsweb.co.za> wrote: > >> > >> As I have it (and as is implemented by SQLite) the GLOB operator > implements a REGEXP that matches against a regexp pattern > > No, these are NOT regular expressions in the usual sense of the word. > GLOB's syntax is incompatible with what are commonly called “regular > expressions”, and its feature set is a lot more limited. (It may > technically implement a type of regular expression in the underlying > algorithmic sense, but I think using the term is misleading.) > > Quite correct, I meant REGEXP as an internal function of the > Regular-expression type, not the official "regular expression" syntax - > So a "misleading term" then in your words. Allow me to be more clear > then: GLOB in SQLite specifically matches Unix file globbing syntax > (which is very different to official RegEx). 3rd party utilities can > override both the internal REGEXP and GLOB functions with custom versions. > https://sqlite.org/lang_expr.html#glob > > The bit I don't know for sure is whether Unix file globbing will regard > 'AB5' as matching '*[^1-9]*' or not? I know in SQLite it matches (and I > believe this to be correct, but I could be mistaken and I don't have a > Unix box handy to test). > > Either way, the concern is more towards consistency than specific > operation. > The SQLite scripts I sent previously will reveal any difference between > versions if they exist. Have you tried it on different versions of the > CLI? > > > _______________________________________________ > sqlite-users mailing list > sqlite-users@mailinglists.sqlite.org > http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
