From: RichardOnRails <RichardDummyMailbox58407@...>
Date: 2009-04-10T10:30:32+09:00
Subject: DRY up consecutive gsub's - How to

Hi,

I have a csv file suitable for an Excel display.  The file has column-
names on certain row.

In order to process subsequent rows I want to refer to their columns
symbolically using the column-names. That requires the column-names to
be cleaned up in order to create valid Ruby symbols.

The following worked fine:
	if col_name
	  col_name.gsub!(/[\s]/, "")
	  col_name.gsub!(/[&]/, "And")
	  col_name.gsub!(/[#]/, "Number")
	end

Each of the following one-liners failed:
	 col_name.gsub!(/[\s]/, ""). gsub!(/[&]/, "And").gsub!(/[#]/,
"Number") if col_name
	 col_name.gsub(/[\s]/, ""). gsub(/[&]/, "And").gsub(/[#]/, "Number")
if col_name

Can either of the one-liners be made to work?

The code is show in a larger (easier to read) context at http://www.pastie.org/442456

Thanks in Advance,
Richard




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