From: "Eric I." <rubytraining@...>
Date: 2008-08-13T12:52:27+09:00
Subject: Re: String manipulation: cut, insert, column editing...

On Aug 12, 3:09 pm, Toki Toki <tok...@gmail.com> wrote:
> Hi all,
>
> Is it possible to use ruby like awk, sed or cut in unix to editing
> strings?
>
> Let say I have to write INSERT query like this:
>
> This is the first (1°) item.
> This is the second (2°) item.
> This is the third (3°) item.
> ..
>
> In one file I have the word-number (first, second, third) and in another
> file I have the real number (1°, 2°, 3°) of the item, both on each line.

Here's some Ruby code that may do what you're interested in:

====

d1 = open("f1.txt") do |f|
  f.readlines.map { |line| line.chomp }
end

d2 = open("f2.txt") do |f|
  f.readlines.map { |line| line.chomp }
end

d3 = [d1, d2].transpose

p d1, d2, d3  # just so you can see what's happened so
far

d3.each do |str1, str2|
  puts "This is the #{str1} (#{str2}) item."
end

====

That's assuming f1.txt contains "first", "second", etc., one per line
and that f2.txt contains "1st", "2nd", etc., one per line.

Eric

====

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