Module: RegexForRange::Util

Extended by:
Util
Included in:
Util
Defined in:
lib/regex_for_range/util.rb

Instance Method Summary collapse

Instance Method Details

#from_end(last) ⇒ Object 



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# File 'lib/regex_for_range/util.rb', line 5

def from_end(last)

  last_str = last.to_s

  i = last_str.length - 1

  while i >= 0 do
    if last_str[i] == '9'
      last_str[i] = '0'
    else
      last_str[i] = '0'
      break
    end
    i -= 1
  end

  return Range.new(last_str.to_i, last)
end

#from_start(first) ⇒ Object 



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# File 'lib/regex_for_range/util.rb', line 24

def from_start(first)
  first_str = first.to_s

  i = first_str.length - 1

  while i >= 0 do
    if first_str[i] == '0'
      first_str[i] = '9'
    else
      first_str[i] = '9'
      break
    end
    i -= 1
  end

  return Range.new(first, first_str.to_i)
end

#join(range1, range2) ⇒ Object 



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# File 'lib/regex_for_range/util.rb', line 42

def join(range1, range2)
  return Range.new(range1.first, range2.last)
end

#join_regex_by_or(ranges) ⇒ Object 



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# File 'lib/regex_for_range/util.rb', line 46

def join_regex_by_or(ranges)
  results = ''
  ranges.each do |range|
    results += range.to_regex + '|'
  end

  return results[0..-2]
end