From: Katarina WONG <k.wong@...>
Date: 2005-06-30T03:05:16+09:00
Subject: Re: regex and gsub quest

On Wed, 29 Jun 2005 16:12:13 +0200, Kent Sibilev <ksruby@gmail.com> wrote:

>> Why doesn't the code below work : (other than an incorrect regex for  
>> comma)
>>
>> a = ["hi,there", "jot this note down", "may i,use the, car"]
>> a.each do |x| x.gsub(/\,/  , "   ") end
>>

As well as using gsub! to see any result in your case,
you should not prepend the comma with a backslash, the
comma has no special meaning.

Last, never play with regexes without irb and your favorite ShowRE !

def showRE(a,re)
   if a =~ re
     res = "#{$`}<<#{$&}>>#{$'}\n"
     res += "1: #$1\n"
     res += "2: #$2\n"
     res += "3: #$3\n"
     res += "4: #$4\n"
     res += "5: #$5\n"
     res += "6: #$6\n"
     res += "7: #$7\n"
     res += "8: #$8\n"
     res += "9: #$9\n"
   else
     "no match"
   end
end

puts showRE( "hi,there", /,/ )

-- 
Katarina