Hans Mackowiak wrote in post #1095104:
> my-ruby:
> did you even try to google that list?
> http://ruby-doc.org/core-1.9.3/Regexp.html
>
>
> /[[:alnum:]]/ - Alphabetic and numeric character
> /[[:alpha:]]/ - Alphabetic character
> /[[:blank:]]/ - Space or tab
> /[[:cntrl:]]/ - Control character
> /[[:digit:]]/ - Digit

I know their description - but would be good for me if I get a ruby tiny 
code to see their uses. Mainly how syntactically are they 
used,basically.

Thanks

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