Class: Lazibi::Filter::Beautify

Inherits:
FilterBase show all
Includes:
Helper::BeautifyFilterHelper
Defined in:
lib/filter/beautify_filter.rb

Instance Method Summary collapse

Methods included from Helper::BeautifyFilterHelper

#indent_exp, #outdent_exp, #tab_size, #tab_str

Methods inherited from FilterBase

#down

Methods included from Helper::FilterHelper

#begin_keys, #clean_block, #clean_line, #comment_at_end, #end_anchor?, #end_keys, #get_indent, #get_rest, #group_match, #middle_anchor?, #middle_keys, #nasty_line?, #split_end, #start_anchor?

Instance Method Details

#add_line(line, tab) ⇒ Object 



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# File 'lib/filter/beautify_filter.rb', line 20

def add_line(line,tab)
  line.strip!
  line = make_tab(tab)+line if line.length > 0
  return line + "\n"
end

#join_sep_line(source) ⇒ Object 



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# File 'lib/filter/beautify_filter.rb', line 26

def join_sep_line( source )
  lines = source.split("\n")
  continue = false
  buffer = ''
  new_lines = []
  for line in lines
    if clean_line(line, true).strip =~ /#/
      if continue
        new_lines << buffer
        new_lines << line
        buffer = ''
      else
        new_lines << line
      end
      next
    end

    if continue
      if line.strip == ''
        continue = false
        new_lines << buffer
        new_lines << line
        buffer = ''
      elsif line.strip[-1..-1] == "\\"
        continue = true
        buffer += ' ' + line.strip[0...-1].strip
      else
        continue = false
        buffer += ' ' + line.lstrip
        new_lines << buffer
        buffer = ''
      end
    else
      if line.strip == ''
        new_lines << line
      elsif line.strip[-1..-1] == "\\"
        continue = true
        buffer += line.rstrip[0...-1].strip
      else
        new_lines << line
      end
    end
  end

  new_lines.join("\n")
end

#make_tab(tab) ⇒ Object 



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# File 'lib/filter/beautify_filter.rb', line 16

def make_tab(tab)
  return (tab < 0) ? "": tab_str * tab_size * tab
end

#up(source) ⇒ Object 



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# File 'lib/filter/beautify_filter.rb', line 73

def up( source )
  source = split_end(source)
  commentBlock = false
  multiLineArray = Array.new
  multiLineStr = ""
  tab = 0
  dest = ""
  source.split("\n").each do |line|
    # combine continuing lines
    if(!(clean_line(line, true) =~ /\s*#/) && line =~ /[^\\]\\\s*$/)
      multiLineArray.push line
      multiLineStr += line.sub(/^(.*)\\\s*$/,"\\1")
      next
    end

    # add final line
    if(multiLineStr.length > 0)
      multiLineArray.push line
      multiLineStr += line.sub(/^(.*)\\\s*$/,"\\1")
    end

    tline = ((multiLineStr.length > 0)?multiLineStr:line).strip
    if(tline =~ /^=begin/)
      commentBlock = true
    end
    if(commentBlock)
      # add the line unchanged
      dest += line + "\n"
    else
      commentLine = (tline =~ /^#/)
      if(!commentLine)
        # throw out sequences that will
        # only sow confusion
        tline = clean_line(tline)
        outdent_exp.each do |re|
          if(tline =~ re)
            tab -= 1
            break
          end
        end
      end
      if (multiLineArray.length > 0)
        first_line = true
        multiLineArray.each do |ml|
          if first_line
            dest += add_line(ml,tab)
            first_line = false
          elsif ml.strip =~ /^unless/ || ml.strip =~ /^if/
            dest = dest.chop.rstrip.chop.rstrip + ' ' + ml.strip + "\n"
          else
            dest += add_line(ml,tab)
          end
        end
        multiLineArray.clear
        multiLineStr = ""
      else
        dest += add_line(line,tab)
      end
      if(!commentLine)
        indent_exp.each do |re|
          if(tline =~ re) && !(tline =~ /\s+end\s*$/)
            tab += 1
            break
          end
        end
      end
    end
    if(tline =~ /^=end/)
      commentBlock = false
    end
  end
  dest
end