Module: Spacer::Text

Defined in:
lib/spacer/text.rb

Class Method Summary collapse

Class Method Details

.count_bol_spaces_and_tabs(lines) ⇒ Object 



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# File 'lib/spacer/text.rb', line 3

def self.count_bol_spaces_and_tabs(lines)
  bol = OpenStruct.new
  bol.spaces = 0
  bol.tabs = 0

  for line in lines do
    for i in 0...line.length do
      c = line[i]

      if c == " "
        bol.spaces += 1
      elsif c == "\t"
        bol.tabs += 1
      else
        break
      end
    end
  end

  bol
end

.tabify(lines, tabsize, round_down_spaces) ⇒ Object 



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# File 'lib/spacer/text.rb', line 49

def self.tabify(lines, tabsize, round_down_spaces)
  i = 0
  while i < lines.length do
    line = lines[i]
    j = 0
    bol = true
    num_bol_spaces = 0
    new_line = ""

    while j < line.length do
      c = line[j]

      if bol and c == " "
        num_bol_spaces += 1
      elsif bol and c != " "
        bol = false
        new_line += "\t" * (num_bol_spaces / tabsize)

        if !round_down_spaces
          new_line += " " * (num_bol_spaces % tabsize)
        end

        new_line += c
      else
        new_line += c
      end

      j += 1
    end

    lines[i] = new_line
    i += 1
  end
end

.untabify(lines, tabsize) ⇒ Object 



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# File 'lib/spacer/text.rb', line 25

def self.untabify(lines, tabsize)
  i = 0
  while i < lines.length do
    line = lines[i]
    j = 0
    new_line = ""

    while j < line.length do
      c = line[j]

      if c == "\t"
        num_spaces = tabsize - (new_line.length % tabsize)
        new_line += " " * num_spaces
      else
        new_line += c
      end
      j += 1
    end

    lines[i] = new_line
    i += 1
  end
end