Class: PdfParadise::ExtractAllImagesFromThisPdfFile

Inherits:
Base
  • Object
show all
Defined in:
lib/pdf_paradise/utility_scripts/extract_all_images_from_this_pdf_file.rb

Overview

PdfParadise::ExtractAllImagesFromThisPdfFile

Constant Summary collapse

NAMESPACE =
#

NAMESPACE

#
inspect

Instance Method Summary collapse

Methods inherited from Base

#basename, #be_verbose?, #change_directory, #commandline_arguments?, #copy_file, #delete_file, #e, #ecomment, #esystem, #first_argument?, #gold, #infer_the_namespace, #input_without_leading_hyphens?, #internal_hash?, #is_an_image_file?, #is_on_roebe?, #lightsteelblue, #log_dir?, #mkdir, #mv, #n_pages?, #namespace?, #no_file_at, #opne, #orange, #reset_the_internal_hash, #return_commandline_arguments_starting_with_hyphens, #return_files_from_the_commandline_arguments, #return_pwd, #rev, #set_be_quiet, #set_commandline_arguments, #steelblue, #try_to_ensure_that_this_directory_exists, #write_what_into

Constructor Details

#initialize(commandline_arguments = ARGV, run_already = true) ⇒ ExtractAllImagesFromThisPdfFile

#

initialize

#


26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
# File 'lib/pdf_paradise/utility_scripts/extract_all_images_from_this_pdf_file.rb', line 26

def initialize(
    commandline_arguments = ARGV,
    run_already           = true
  )
  reset
  set_commandline_arguments(
    commandline_arguments
  )
  case run_already
  # ======================================================================= #
  # === :do_not_run_yet
  # ======================================================================= #
  when :do_not_run_yet
    run_already = false
  end
  make_sure_that_the_first_argument_is_not_a_symbol
  run if run_already
end

Instance Method Details

#determine_the_raw_name(_ = first_argument? ) ⇒ Object

#

determine_the_raw_name

This method will determine the raw filename.

#


77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
 
# File 'lib/pdf_paradise/utility_scripts/extract_all_images_from_this_pdf_file.rb', line 77

def determine_the_raw_name(
    _ = first_argument?
  )
  if _ and _.is_a?(Array)
    _ = _.first
  end
  if _
    _ = _.dup # Work on a copy.
    _.delete_suffix!('.pdf')
    _ = File.basename(_) if _.include? '/'
  end
  # ======================================================================= #
  # === @raw_name
  # ======================================================================= #
  @raw_name = _
end

#do_extract_the_pdf_file(i = first_argument? ) ⇒ Object

#

do_extract_the_pdf_file

#


97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
 
# File 'lib/pdf_paradise/utility_scripts/extract_all_images_from_this_pdf_file.rb', line 97

def do_extract_the_pdf_file(
    i = first_argument?
  )
  if @raw_name.nil?
    determine_the_raw_name(i) if i
  end
  if i and File.exist?(i)
    cmd = "pdfimages -j #{i} #{@raw_name}"
    e
    esystem cmd
    e
  else
    e "No file exists at `#{i}`."
    false 
  end
end

#make_sure_that_the_first_argument_is_not_a_symbol ⇒ Object

#

make_sure_that_the_first_argument_is_not_a_symbol

#


55
56
57
58
59
60
61
62
63
 
# File 'lib/pdf_paradise/utility_scripts/extract_all_images_from_this_pdf_file.rb', line 55

def make_sure_that_the_first_argument_is_not_a_symbol
  if @commandline_arguments
    if @commandline_arguments.is_a? Symbol
      @commandline_arguments = []
    elsif @commandline_arguments.first.is_a? Symbol
      @commandline_arguments.shift
    end
  end
end

#opnn ⇒ Object

#

opnn

#


68
69
70
 
# File 'lib/pdf_paradise/utility_scripts/extract_all_images_from_this_pdf_file.rb', line 68

def opnn
  super(NAMESPACE)
end

#reset ⇒ Object

#

reset (reset tag)

#


48
49
50
 
# File 'lib/pdf_paradise/utility_scripts/extract_all_images_from_this_pdf_file.rb', line 48

def reset
  super()
end

#run ⇒ Object

#

run (run tag)

#


117
118
119
120
121
122
123
 
# File 'lib/pdf_paradise/utility_scripts/extract_all_images_from_this_pdf_file.rb', line 117

def run
  _ = first_argument?
  determine_the_raw_name(_)
  if _ and File.exist?(_)
    do_extract_the_pdf_file(_)
  end
end