Class: Pinport::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/pinport/parser.rb

Class Method Summary collapse

Class Method Details

.dos2unix(file, output_path = nil) ⇒ String

Fixes linebreaks on files and returns result

Parameters:

  • file (String) —

    path to the file to be processed by dos2unix

  • output_path (String) (defaults to: nil) —

    path to file where output should be returned, default: same as file

Returns:

  • (String) —

    path to file that was processed



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# File 'lib/pinport/parser.rb', line 11

def dos2unix(file, output_path = nil)
  puts "Fixing newlines for #{file} ..."
  if File.exists?(file)
    input = File.open(file)
    output = Tempfile.new("/tmp")
    regex = /\r\n/
    newstring = "\n"
    while (line = input.gets) do
      output_line = line.gsub(regex, newstring)
      output << output_line
    end
    input.close
    output.close
    output_path = file unless output_path != nil
    system("mv #{Shellwords.shellescape(output.path)} #{Shellwords.shellescape(output_path)}")
    puts "Parser: Corrected newlines."
    return output_path
    # return "Newlines were successfully fixed for #{file}"
  else
    puts "Specified file does not exist."
    return nil
  end
end

.sort_file_contents(input, output_path = nil) ⇒ Object

Runs ‘sort` command to sort contents of a text file. Returns true if successfully outputted to a file; otherwise prints the contents of the result

Parameters:

  • input (String) —

    path to the file to be sorted

  • output_path (String) (defaults to: nil) —

    the path to



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# File 'lib/pinport/parser.rb', line 64

def sort_file_contents(input, output_path = nil)
  puts "Sorting: #{input} ..."
  # Shellescape arguments to prevent errors
  system("sort #{Shellwords.shellescape(input)} -o #{Shellwords.shellescape(output_path)}") unless output_path == nil
  return true
  # otherwise: print the result
  `sort #{input}`
end

.strip_chars(file, chars, output_path = nil) ⇒ String

Strips characters to be filtered and returns result

Parameters:

  • file (String) —

    path to the file to be processed

  • chars (String) —

    a string of characters to be filtered out

  • output_path (String) (defaults to: nil) —

    path to file where output should be returned, defaults to same path as ‘file` parameter

Returns:

  • (String) —

    path to file that was processed



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# File 'lib/pinport/parser.rb', line 40

def strip_chars(file, chars, output_path = nil)
  puts "Filtering: #{file} ..."
  if File.exists?(file)
    input = File.open(file)
    output = Tempfile.new("/tmp")
    while (line = input.gets) do
      output_line = line.gsub!(chars, '')
      output << output_line
    end
    input.close
    output.close
    output_path = file unless output_path != nil
    system("mv #{Shellwords.shellescape(output.path)} #{Shellwords.shellescape(output_path)}")
    puts "Parser: Filtered #{chars}."
    return output_path
  else
    puts "Specified file does not exist."
    return nil
  end
end