# Case sensitivity in glob revisited **URL:** \ **Category:** Ruby\ **Created:** [July 30, 2007, 9:09pm UTC](https://www.ruby-forum.com/t/case-sensitivity-in-glob-revisited/110780 "2007-07-30T21:09:32Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Trans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@Trans](https://www.ruby-forum.com/u/Trans)\ **Post date:** [July 30, 2007, 9:09pm UTC](https://www.ruby-forum.com/t/case-sensitivity-in-glob-revisited/110780/1 "2007-07-30T21:09:32Z")
## Dir.glob( pattern, [flags] ) =\> array Dir.glob( pattern, [flags] ) {| filename | block } =\> nil ``` Returns the filenames found by expanding _pattern_ which is an +Array+ of the patterns or the pattern +String+, either as an _array_ or as parameters to the block. Note that this pattern is not a regexp (it's closer to a shell glob). See +File::fnmatch+ ``` for the meaning of the _flags_ parameter. Note that case sensitivity depends on your system (so +File::FNM\_CASEFOLD+ is ignored) “case sensitivity depends on your system” Ruby’s cross-platform, so Ruby should trump the system. Of course if the system is case insensitive, to won’t matter wither way. But otherwise without this, to get case insensitivity we have to do: Dir.glob("[Ss][Oo][Mm][Ee][Th][Ii][Nn][Gg][Ss][Tt][Uu][Pp][Ii][Dd]") T. ---
**Author:** ![Trans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@Trans](https://www.ruby-forum.com/u/Trans)\ **Post date:** [July 30, 2007, 9:30pm UTC](https://www.ruby-forum.com/t/case-sensitivity-in-glob-revisited/110780/2 "2007-07-30T21:30:36Z")
On 7/30/07, Trans [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > “case sensitivity depends on your system” > > Ruby’s cross-platform, so Ruby should trump the system. Of course if > the system is case insensitive, to won’t matter wither way. But > otherwise without this, to get case insensitivity we have to do: > > Dir.glob(“[Ss][Oo][Mm][Ee][Th][Ii][Nn][Gg][Ss][Tt][Uu][Pp][Ii][Dd]”) Tom what would you expect it to do in the following case: touch SomeThingStupid touch somethingstupid touch SOMETHINGSTUPID # no, I am not shouting, sorry 😉 I am afraid Ruby can not overcome some limitations of the cruel, physical world :(. Cheers Robert ---
**Author:** ![Trans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@Trans](https://www.ruby-forum.com/u/Trans)\ **Post date:** [July 30, 2007, 9:34pm UTC](https://www.ruby-forum.com/t/case-sensitivity-in-glob-revisited/110780/3 "2007-07-30T21:34:37Z")
Hi, At Tue, 31 Jul 2007 04:08:49 +0900, Trans wrote in [ruby-talk:262505]: > ``` > not a regexp (it's closer to a shell glob). See +File::fnmatch+ for > the meaning of the _flags_ parameter. Note that case sensitivity > depends on your system (so +File::FNM_CASEFOLD+ is ignored) > > ``` > Ruby’s cross-platform, so Ruby should trump the system. Of course if > the system is case insensitive, to won’t matter wither way. But > otherwise without this, to get case insensitivity we have to do: Dir.glob(“somehingstupid”, File::FNM\_CASEFOLD) ---
**Author:** ![Trans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@Trans](https://www.ruby-forum.com/u/Trans)\ **Post date:** [July 30, 2007, 10:02pm UTC](https://www.ruby-forum.com/t/case-sensitivity-in-glob-revisited/110780/4 "2007-07-30T22:02:42Z")
On Jul 30, 12:34 pm, Nobuyoshi N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > otherwise without this, to get case insensitivity we have to do: > > Dir.glob(“somehingstupid”, File::FNM\_CASEFOLD) Yea it works now! |-) So the docs just need to catch up to reality. Okay. Sorry for the noise, T. ---
**Author:** ![Trans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@Trans](https://www.ruby-forum.com/u/Trans)\ **Post date:** [July 30, 2007, 11:45pm UTC](https://www.ruby-forum.com/t/case-sensitivity-in-glob-revisited/110780/5 "2007-07-30T23:45:03Z")
On 7/30/07, Trans [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > ``` > > > _array_ or as parameters to the block. Note that this pattern is > > > > > > ``` > > Oh, I just meant for Dir#glob. Where the docs said “(so > +File::FNM\_CASEFOLD+ is ignored)” – I didn’t want it to be ignored. > so you would just get three entries with the same name, right? > Sorry I failed to understand that this was what you wanted . Cheers Robert ---
**Author:** ![Trans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@Trans](https://www.ruby-forum.com/u/Trans)\ **Post date:** [July 30, 2007, 10:05pm UTC](https://www.ruby-forum.com/t/case-sensitivity-in-glob-revisited/110780/6 "2007-07-30T22:05:43Z")
On Jul 30, 12:25 pm, “Robert D.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > ``` > > the meaning of the _flags_ parameter. Note that case sensitivity > > > > ``` > > Tom what would you expect it to do in the following case: > > touch SomeThingStupid > touch somethingstupid > touch SOMETHINGSTUPID # no, I am not shouting, sorry 😉 > > I am afraid Ruby can not overcome some limitations of the cruel, > physical world :(. Oh, I just meant for Dir#glob. Where the docs said “(so +File::FNM\_CASEFOLD+ is ignored)” – I didn’t want it to be ignored. T.