Class: SubviewerReader

Inherits:
Object
  • Object
show all
Includes:
Patterns
Defined in:
lib/subtitle-library/reader.rb

Constant Summary

Constants included from Patterns

Patterns::MICRO_DVD_LINE, Patterns::SUBVIEWER_LINE, Patterns::SUBVIEWER_METADATA, Patterns::SUB_RIP_LINE, Patterns::SUB_RIP_TIMING

Instance Method Summary collapse

Constructor Details

#initialize(subs_path) ⇒ SubviewerReader

Returns a new instance of SubviewerReader.



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# File 'lib/subtitle-library/reader.rb', line 267

def initialize(subs_path)
  @subs_path = subs_path
  @fps = 23.976
end

Instance Method Details

#check_timing(start_time, end_time, last_end_time, error_log, check_syntax, actual_lines) ⇒ Object 



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# File 'lib/subtitle-library/reader.rb', line 342

def check_timing(start_time, end_time, last_end_time, error_log, check_syntax, actual_lines)
  if start_time.year + start_time.month + start_time.day +
    end_time.year + end_time.month + end_time.day != 6 or
      start_time >= end_time or start_time < last_end_time
        if check_syntax
          error_log += "Invalid timing at line #{actual_lines}.\n"
        else
          puts "Invalid timing at line #{actual_lines}.\n"
        end
        return [false, error_log]
  end
  [true, error_log]
end

#parse_timing(line) ⇒ Object 



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# File 'lib/subtitle-library/reader.rb', line 332

def parse_timing(line)
  start_end = line.split ','
  time_args = [1,1,1] + start_end[0].split(/\.|:/).collect(&:to_i)
  time_args[6] *= 1000
  start_time = Time.mktime *time_args
  time_args = [1,1,1] + start_end[1].split(/\.|:/).collect(&:to_i)
  time_args[6] *= 1000
  [start_time, Time.mktime(*time_args)]
end

#read_metadata(subs, check_syntax) ⇒ Object 



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# File 'lib/subtitle-library/reader.rb', line 314

def read_metadata(subs, check_syntax)
  actual_lines = 0
  error_log = ''
  metadata = ''
  while line = subs.gets
    actual_lines += 1
    strip_line = line.strip
    if strip_line != ''
      if /\A\d/ =~ strip_line
        error_log += "Syntax error in metadata.\n" if check_syntax and not SUBVIEWER_METADATA =~ metadata
        break
      end
      metadata += strip_line
    end
  end
  [actual_lines, error_log, line]
end

#read_subs(check_syntax) ⇒ Object 



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# File 'lib/subtitle-library/reader.rb', line 272

def read_subs(check_syntax)
  cues = []
  error_log = ''
  last_end_time = Time.mktime 1, 1, 1
  File.open(@subs_path, 'r') do |subs|
    actual_lines, error_log, line = read_metadata subs, check_syntax 
    while line
      strip_line = line.strip
      if strip_line != ''
        if SUBVIEWER_LINE =~ strip_line
          start_time, end_time = parse_timing strip_line
          valid_timing, error_log = check_timing start_time, end_time, last_end_time, error_log, check_syntax, actual_lines
          unless valid_timing
            break unless subs.gets
            line = subs.gets
            actual_lines += 2
            next
          end
          line = subs.gets
          break unless line
          actual_lines += 1
          cues << Cue.new(start_time, end_time, line.strip.gsub('[br]', "\n")) unless check_syntax
          last_end_time = end_time
        else
          error_log += "Syntax error at line #{actual_lines}.\n" if check_syntax
          break unless subs.gets
          line = subs.gets
          actual_lines += 2
          next
        end
      end
      line = subs.gets
      actual_lines += 1
    end
  end
  if check_syntax
    error_log == '' ? 'No errors were found.' : error_log.rstrip
  else
    [cues, @fps]
  end
end