ruby on rails - i replace start # character word replace from text -

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I replace it with #x instead. My goal is creating clickable links from hashtag text

I used .gsub () but not working

Example:

S = "#tag ddd # tagddd #taghh #tag aaaaa ##### Tag B ### Tag" str = "#tag" s .gsub (/ \ b "# {str}" / b /), " Substituted ")

I think the output has been changed" ddd # tagddd #taghh replaced aaaaa ####b ##place "

thanks 

  s = "#tag ddd # tagddd #taghh #tag aaaaa ##### Tag B ### Tag "str =" #tag "s.gsub (str," replace ") # = & gt; "Replace DeedWorlds # TagDead #Tehgh AAAAAAH #### Replaced B ##"

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