Re: Replace any multiple whitespaces with single white space

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From	Joel VanderWerf <joelvanderwerf@gmail.com>
Newsgroups	comp.lang.ruby
Subject	Re: Replace any multiple whitespaces with single white space
Date	Tue, 26 Apr 2011 11:31:32 -0500
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On 04/26/2011 05:03 AM, Brian Candler wrote:
> Joel VanderWerf wrote in post #994935:
>> On 04/25/2011 11:44 AM, Michelle Pace wrote:
>>> pattern incorrect?
>>>
>>> descrip = "1/4 WELDING    LEVER FRONT DRW 14844-C  MAT  WMA1CM-WLFRONT"
>>> descrip.sub!(/\s+/,' ')
>>> puts descrip
>>
>> sub! only affects the *first* match. You can substitute globally with
>> gsub. Also you might as well only match 2 or more spaces:
>>
>> descrip.gsub!(/\s\s+/,' ')
>
> Those are not equivalent, because \s matches more than just ASCII 0x20.
>
> d1 = "foo\tbar\tbaz"
> d1.gsub(/\s+/,' ')    # "foo bar baz"
> d1.gsub(/\s\s+/,' ')  # "foo\tbar\tbaz"

You're right. What I said in another post about preserving tabs isn't 
what the original sub! call was doing anyway.

(sorry for the empty reply previously)

Thread

Replace any multiple whitespaces with single white space Michelle Pace <michelle@michellepace.com> - 2011-04-25 13:44 -0500
  Re: Replace any multiple whitespaces with single white space Joel VanderWerf <joelvanderwerf@gmail.com> - 2011-04-25 13:51 -0500
    Re: Replace any multiple whitespaces with single white space Josh Cheek <josh.cheek@gmail.com> - 2011-04-25 14:02 -0500
      Re: Replace any multiple whitespaces with single white space Joel VanderWerf <joelvanderwerf@gmail.com> - 2011-04-25 14:14 -0500
        Re: Replace any multiple whitespaces with single white space Gunther Diemant <g.diemant@gmx.net> - 2011-04-25 15:43 -0500
    Re: Replace any multiple whitespaces with single white space Brian Candler <b.candler@pobox.com> - 2011-04-26 07:03 -0500
      Re: Replace any multiple whitespaces with single white space Joel VanderWerf <joelvanderwerf@gmail.com> - 2011-04-26 11:27 -0500
      Re: Replace any multiple whitespaces with single white space Joel VanderWerf <joelvanderwerf@gmail.com> - 2011-04-26 11:31 -0500
  Re: Replace any multiple whitespaces with single white space John W Higgins <wishdev@gmail.com> - 2011-04-25 13:56 -0500
  Re: Replace any multiple whitespaces with single white space Alexander McMillan <alexandermcmillan@hotmail.com> - 2011-04-26 05:18 -0500

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