Retrieving Values ​​from a Text Body in Ruby

Question

I need to extract some values ​​from a multi-line string (which I read from the text body of letters). I want to be able to feed templates for my parsing, so I can configure various emails later. I came up with the following:

#!/usr/bin/env ruby

text1 = 
<<-eos
Lorem ipsum dolor sit amet, 

Name: Pepe Manuel Periquita

Email: [e-mail]

Sisters: 1
Brothers: 3
Children: 2

Lorem ipsum dolor sit amet
eos

pattern1 = {
  :exp => /Name:[\s]*(.*?)$\s*
          Email:[\s]*(.*?)$\s*
          Sisters:[\s]*(.*?)$\s*
          Brothers:[\s]*(.*?)$\s*
          Children:[\s]*(.*?)$/mx,
  :blk => lambda do |m|
    m.flatten!
    {:name => m[0],
     :email => m[1],
     :total => m.drop(2).inject(0){|sum,item| sum + item.to_i}}
  end
}

# Scan on text returns 
#[["Pepe Manuel Periquita", "[e-mail]", "1", "3", "2"]]

  def do_parse text, pattern
    data = pattern[:blk].call(text.scan(pattern[:exp]))

    puts data.inspect
  end


do_parse text1, pattern1

# ./text_parser.rb
# {:email=>"[e-mail]", :total=>6, :name=>"Pepe Manuel Periquita"}

So, I define the pattern as a regular expression paired with a block to build a hash from matches. The parser simply takes the text and applies the rules, executing the block as a result of matching the regular expression with the text with validation.

, text1, ( ). , "". , ...

?

/ ?

Tonttu, :

pattern2 = {
  :exp => /^(.+?):\s*(.+)$/,
  :blk => lambda do |m|
    r = Hash[m.map{|x| [x[0].downcase.to_sym, x[1]]}]

    {:name => r[:name],
     :email => r[:email],
     :total => r[:children].to_i + r[:brothers].to_i + r[:sisters].to_i}
  end
}

Answer 1

, - ?

pp Hash[*text1.scan(/^(.+?):\s(.+)$/).map{|x|
     [x[0].downcase.to_sym, x[1]]
   }.flatten]

=>
{:sisters=>"1",
 :brothers=>"3",
 :children=>"2",
 :name=>"Pepe Manuel Periquita",
 :email=>"[e-mail]"}