# String with \\ **URL:** \ **Category:** ruby-talk\ **Created:** [3 December 2008 15:12 UTC](https://rubytalk.org/t/string-with/50507 "2008-12-03T15:12:23Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Vrone\_Ve](https://avatars.discourse-cdn.com/v4/letter/v/f08c70/32.png) [@Vrone\_Ve](https://rubytalk.org/u/Vrone_Ve)\ **Post date:** [3 December 2008 15:12 UTC](https://rubytalk.org/t/string-with/50507/1 "2008-12-03T15:12:23Z")
Hi all string = "abc/ def/ ghi/" how to get all three of these dynamic values placed before backslash in separate variables. any suggestitons?? cheers > **···** > > -- > Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/). ---
**Author:** ![Brian\_Candler](https://avatars.discourse-cdn.com/v4/letter/b/5f9b8f/32.png) [@Brian\_Candler](https://rubytalk.org/u/Brian_Candler)\ **Post date:** [3 December 2008 15:30 UTC](https://rubytalk.org/t/string-with/50507/2 "2008-12-03T15:30:28Z")
Vrone Ve wrote: > Hi all > > string = "abc/ def/ ghi/" > > how to get all three of these dynamic values placed before backslash in > separate variables. > any suggestitons?? [http://www.ruby-doc.org/docs/ProgrammingRuby/](http://www.ruby-doc.org/docs/ProgrammingRuby/) Look at String#split, i.e. the split method of the String class > **···** > > -- > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C). ---
**Author:** ![Craig\_Demyanovich](https://avatars.discourse-cdn.com/v4/letter/c/e47c2d/32.png) [@Craig\_Demyanovich](https://rubytalk.org/u/Craig_Demyanovich)\ **Post date:** [3 December 2008 15:32 UTC](https://rubytalk.org/t/string-with/50507/3 "2008-12-03T15:32:36Z")
See String#split and String#strip. Regards, Craig > **···** > > On Wed, Dec 3, 2008 at 10:12 AM, Vrone Ve \ wrote: > > > Hi all > > > > string = "abc/ def/ ghi/" > > > > how to get all three of these dynamic values placed before backslash in > > separate variables. > > any suggestitons?? ---
**Author:** ![Rob\_Biedenharn1](https://avatars.discourse-cdn.com/v4/letter/r/57b2e6/32.png) [@Rob\_Biedenharn1](https://rubytalk.org/u/Rob_Biedenharn1)\ **Post date:** [3 December 2008 15:39 UTC](https://rubytalk.org/t/string-with/50507/4 "2008-12-03T15:39:41Z")
> Hi all > > string = "abc/ def/ ghi/" > > how to get all three of these dynamic values placed before backslash in > separate variables. > any suggestitons?? > > cheers > string = "abc/ def/ ghi/" =\> "abc/ def/ ghi/" > string.split(%r{/\s\*}) =\> ["abc", "def", "ghi"] You could use parallel assignment, but I'd question whether you really wanted three variables rather than a three-element array. a, d, g = string.split(%r{/\s\*}) -Rob Rob Biedenharn [http://agileconsultingllc.com](http://agileconsultingllc.com) Rob@AgileConsultingLLC.com > **···** > > On Dec 3, 2008, at 10:12 AM, Vrone Ve wrote: ---
**Author:** ![Vrone\_Ve](https://avatars.discourse-cdn.com/v4/letter/v/f08c70/32.png) [@Vrone\_Ve](https://rubytalk.org/u/Vrone_Ve)\ **Post date:** [3 December 2008 15:52 UTC](https://rubytalk.org/t/string-with/50507/5 "2008-12-03T15:52:30Z")
Rob Biedenharn wrote: > > cheers > > \> string = "abc/ def/ ghi/" > =\> "abc/ def/ ghi/" > \> string.split(%r{/\s\*}) > =\> ["abc", "def", "ghi"] > > You could use parallel assignment, but I'd question whether you really > wanted three variables rather than a three-element array. > > a, d, g = string.split(%r{/\s\*}) > > -Rob > > Rob Biedenharn [http://agileconsultingllc.com](http://agileconsultingllc.com) > Rob@AgileConsultingLLC.com thanks Rob, My detailed question is regarding a string something like String "ABC\Name X\Gender " and I want to scan the string for each of the element(i.e. Name, Gender) and whereever Name is written in the string, I want to grab the value placed before the back slash and store it in a variable. same is the case with gender and/or with any other attribute i want to be in this string. Cheers > **···** > > > On Dec 3, 2008, at 10:12 AM, Vrone Ve wrote: > > -- > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C). ---
**Author:** ![Rob\_Biedenharn1](https://avatars.discourse-cdn.com/v4/letter/r/57b2e6/32.png) [@Rob\_Biedenharn1](https://rubytalk.org/u/Rob_Biedenharn1)\ **Post date:** [3 December 2008 17:01 UTC](https://rubytalk.org/t/string-with/50507/6 "2008-12-03T17:01:47Z")
> Rob Biedenharn wrote: > > > > cheers > > > > \> string = "abc/ def/ ghi/" > > =\> "abc/ def/ ghi/" > > \> string.split(%r{/\s\*}) > > =\> ["abc", "def", "ghi"] > > > > You could use parallel assignment, but I'd question whether you really > > wanted three variables rather than a three-element array. > > > > a, d, g = string.split(%r{/\s\*}) > > > > -Rob > > > > Rob Biedenharn [http://agileconsultingllc.com](http://agileconsultingllc.com) > > Rob@AgileConsultingLLC.com > > thanks Rob, > > My detailed question is regarding a string something like > String "ABC\Name X\Gender " > and I want to scan the string for each of the element(i.e. Name, Gender) > and whereever Name is written in the string, I want to grab the value > placed before the back slash and store it in a variable. same is the > case with gender and/or with any other attribute i want to be in this > string. > > Cheers Then I presume you want a transformation something like: magic("ABC\\Name X\\Gender") =\> [["Name", "ABC"], ["Gender", "X"]] or =\> { "Name" =\> "ABC", "Gender" =\> "X" } You can then manipulate the alist or hash (key-value pairs) as you wish. (for the alist, "association list", you can use the Array#assoc method) Depending on where whitespace is permitted in the original string, you might be able to: > "ABC\\Name X\\Gender".split(' ').map{|pair| pair.split(/\ \/).reverse } =\> [["Name", "ABC"], ["Gender", "X"]] -Rob Rob Biedenharn [http://agileconsultingllc.com](http://agileconsultingllc.com) Rob@AgileConsultingLLC.com > **···** > > On Dec 3, 2008, at 10:52 AM, Vrone Ve wrote: > > > > On Dec 3, 2008, at 10:12 AM, Vrone Ve wrote: ---
**Author:** ![Vrone\_Ve](https://avatars.discourse-cdn.com/v4/letter/v/f08c70/32.png) [@Vrone\_Ve](https://rubytalk.org/u/Vrone_Ve)\ **Post date:** [3 December 2008 17:03 UTC](https://rubytalk.org/t/string-with/50507/7 "2008-12-03T17:03:23Z")
Vrone Ve wrote: > Rob Biedenharn wrote: > > > > cheers > > > > \> string = "abc/ def/ ghi/" > > =\> "abc/ def/ ghi/" > > \> string.split(%r{/\s\*}) > > =\> ["abc", "def", "ghi"] > > > > You could use parallel assignment, but I'd question whether you really > > wanted three variables rather than a three-element array. > > > > a, d, g = string.split(%r{/\s\*}) > > > > -Rob > > > > Rob Biedenharn [http://agileconsultingllc.com](http://agileconsultingllc.com) > > Rob@AgileConsultingLLC.com thanks Rob, and all for your response My detailed question is regarding a string something like String "ABC\Name X\Gender " and I want to scan the string for each of the element(i.e. Name, Gender) and whereever Name is written in the string, I want to grab the value placed before the back slash and store it in a variable. same is the case with gender and/or with any other attribute i want to be in this string. Your help required. cheers > **···** > > > > On Dec 3, 2008, at 10:12 AM, Vrone Ve wrote: > > -- > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C). ---
**Author:** ![David\_Wright](https://avatars.discourse-cdn.com/v4/letter/d/c77e96/32.png) [@David\_Wright](https://rubytalk.org/u/David_Wright)\ **Post date:** [3 December 2008 17:28 UTC](https://rubytalk.org/t/string-with/50507/8 "2008-12-03T17:28:14Z")
Vrone Ve wrote: > Vrone Ve wrote: > > > Rob Biedenharn wrote: > > > > > > cheers > > > > > > \> string = "abc/ def/ ghi/" > > > =\> "abc/ def/ ghi/" > > > \> string.split(%r{/\s\*}) > > > =\> ["abc", "def", "ghi"] > > > > > > You could use parallel assignment, but I'd question whether you really > > > wanted three variables rather than a three-element array. > > > > > > a, d, g = string.split(%r{/\s\*}) > > > > > > -Rob > > > > > > Rob Biedenharn [http://agileconsultingllc.com](http://agileconsultingllc.com) > > > Rob@AgileConsultingLLC.com > > thanks Rob, and all for your response > > My detailed question is regarding a string something like > String "ABC\Name X\Gender " > and I want to scan the string for each of the element(i.e. Name, Gender) > and whereever Name is written in the string, I want to grab the value > placed before the back slash and store it in a variable. same is the > case with gender and/or with any other attribute i want to be in this > string. > > Your help required. > cheers rather then split, I believe you want scan. irb(main):032:0\> str = 'ABC\Name X\Gender Z\Person ' =\> "ABC\\Name X\\Gender Z\\Person " irb(main):033:0\> str.scan(/(.\*?)\\\w+\s?/) =\> [["ABC"], ["X"], ["Z"]] irb(main):034:0\> t = str.scan(/(.\*?)\\\w+\s?/) =\> [["ABC"], ["X"], ["Z"]] irb(main):035:0\> t =\> [["ABC"], ["X"], ["Z"]] > **···** > > > > > On Dec 3, 2008, at 10:12 AM, Vrone Ve wrote: > > -- > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C). ---
**Author:** ![Vrone\_Ve](https://avatars.discourse-cdn.com/v4/letter/v/f08c70/32.png) [@Vrone\_Ve](https://rubytalk.org/u/Vrone_Ve)\ **Post date:** [3 December 2008 17:49 UTC](https://rubytalk.org/t/string-with/50507/9 "2008-12-03T17:49:09Z")
What if There is some optional value which may appear in strings oftenly, and i want to check against its attribute value. or in other words its not necesary to have Name with its value every time in the string, and i want to have some checks on it ( e.g if Name attribute is there then grab its value before the back slash, then moving along all other attributes and chk there occurance take their value) thanks again > **···** > > -- > Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/). ---
**Author:** ![Rob\_Biedenharn1](https://avatars.discourse-cdn.com/v4/letter/r/57b2e6/32.png) [@Rob\_Biedenharn1](https://rubytalk.org/u/Rob_Biedenharn1)\ **Post date:** [3 December 2008 20:20 UTC](https://rubytalk.org/t/string-with/50507/10 "2008-12-03T20:20:57Z")
> What if There is some optional value which may appear in strings > oftenly, and i want to check against its attribute value. or in other > words its not necesary to have Name with its value every time in the > string, and i want to have some checks on it ( e.g if Name attribute is > there then grab its value before the back slash, then moving along all > other attributes and chk there occurance take their value) > > thanks again > "ABC\\Name X\\Gender Z\\Person ".scan(/([^\\]+)\\(\w+)\s?/) =\> [["ABC", "Name"], ["X", "Gender"], ["Z", "Person"]] > alist = \_ =\> [["ABC", "Name"], ["X", "Gender"], ["Z", "Person"]] > alist.rassoc('Name') =\> ["ABC", "Name"] > alist.rassoc('Person') =\> ["Z", "Person"] > alist.rassoc('Optional') =\> nil If you still can't figure it out, either hire someone or at least post your actual problem with some real data. Even a little code fragment that you think is close, but perhaps misbehaving in a few cases. Showing those cases as tests would be even better. 😉 -Rob Rob Biedenharn [http://agileconsultingllc.com](http://agileconsultingllc.com) Rob@AgileConsultingLLC.com > **···** > > On Dec 3, 2008, at 12:49 PM, Vrone Ve wrote: