Class: I15R::PatternMatcher::HamlTransformer

Inherits:
Transformer
  • Object
show all
Defined in:
lib/i15r/pattern_matcher.rb

Instance Method Summary collapse

Methods inherited from Transformer

#initialize

Constructor Details

This class inherits a constructor from I15R::PatternMatcher::Transformer

Instance Method Details

#transform(match_data, match, line, translation_key) ⇒ Object 



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# File 'lib/i15r/pattern_matcher.rb', line 112

def transform(match_data, match, line, translation_key)
  return line if line.match /\bt\(/
  leading_whitespace = line[/^(\s+)/, 1]
  no_leading_whitespace = if leading_whitespace
    line[leading_whitespace.size..-1]
  else
    line
  end
  if ['/', '-'].include?(no_leading_whitespace[0])
    return line
  end

  # Space can only occur in haml markup in an attribute list
  # enclosed in { } or ( ). If the first segment has { or (
  # we are still in the markup and need to go on to find the beginning
  # of the string to be replaced
  i = 0
  haml_segment = true
  attribute_list_start = nil
  segments = no_leading_whitespace.split(/\s+/)
  while haml_segment
    s = segments[i]
    if attribute_list_start
      attribute_list_end = [')', '}'].detect { |sym| s.index(sym) }
      if attribute_list_end
        haml_segment = false
      end
    else
      attribute_list_start = ['(', '{'].detect { |sym| s.index(sym) }
      unless attribute_list_start
        haml_segment = false
      end
    end
    i += 1
  end

  until_first_whitespace = segments[0...i].join(' ')
  if HAML_SYMBOLS.any? { |sym| until_first_whitespace.index(sym) }
    haml_markup = until_first_whitespace
    content = segments[i..-1].join(' ')
    if haml_markup[-1] == '='
      haml_markup += ' '
    else
      haml_markup += '= '
    end
  else
    haml_markup = ''
    content = no_leading_whitespace
    content.insert(0, '= ') unless content[0] == '='
  end

  new_line = (leading_whitespace or '') + haml_markup + content
  new_line.gsub(match.gsub(/\s+$/, ''), i18n_string(translation_key, match))
end