regex.rb

# -*- coding: utf-8 -*-
require 'open-uri'

#txt = open('https://raw.githubusercontent.com/openfootball/world-cup/master/2014--brazil/cup.txt').read
txt = open('https://raw.githubusercontent.com/openfootball/world-cup/master/2010--south-africa/cup.txt').read

# (1) Fri Jun/11 16:00    South Africa  1-1  Mexico      @ Soccer City, Johannesburg
# (1) Thu Jun/12 17:00   Brazil - Croatia      @ Arena de São Paulo, São Paulo (UTC-3)

regex = %r{
  \( (?<number> \d+ ) \) \s+
  (?<day_of_week> \w+ )  \s+
  (?<month> \w+ )        /
  (?<day_of_month> \d+ ) \s+
  (?<hour> \d+ )         :
  (?<minute> \d+ )       \s+
  (?<team_a> \w+ )       \s+
  ( (?<score_a> \d+) )?  \s*-\s*
  ( (?<score_b> \d+) )?  \s+
  (?<team_b> \w+ )       \s*@\s*
  (?<location> .*)
  (\(UTC(?<utc_offset>[+-]\d+)\))?
}x

txt.each_line do |line|
  m = regex.match(line)
  p m if m
end