remove pdf processor

pull/289/head
Pete Matsyburka 1 year ago
parent a773f63a65
commit a265ca1716

@ -1,96 +0,0 @@
# frozen_string_literal: true
class PdfProcessor < HexaPDF::Content::Processor
attr_accessor :handler, :serializer
class ParseTextHandler
attr_accessor :pos, :num, :search_chars, :handler
def initialize(handler)
@num = 0
@pos = 0
@handler = handler
@search_chars = handler.search_chars
end
TJS = %i[TJ Tj].freeze
def call(processor, operator, operands)
return unless TJS.include?(operator)
processor.send(:decode_text, *operands).chars.each do |char|
handler.tokens << [char, [@num, @pos]] if search_chars.include?(char)
@pos += 1
end
@pos = 0
@num += 1
rescue HexaPDF::Error => e
Rails.logger.error(e.message)
@pos = 0
@num += 1
end
end
def initialize(page)
super
@serializer = HexaPDF::Serializer.new
end
def serialize(operator, operands)
operators[operator].serialize(serializer, *operands)
end
def process(operator, operands = [])
super
handler.call(self, operator, operands)
end
def self.call(data, process_handler, result_handler, acc = {}, remove_tags: true)
doc = HexaPDF::Document.new(io: StringIO.new(data))
doc.pages.each do |page|
processor = PdfProcessor.new(page)
process_handler_instance = process_handler.new
processor.handler = ParseTextHandler.new(process_handler_instance)
page.process_contents(processor)
if process_handler_instance.tokens?
processor = PdfProcessor.new(page)
processor.handler = process_handler_instance
page.process_contents(processor)
page.contents = process_handler_instance.contents if process_handler_instance.result.present? && remove_tags
end
page[:Annots].to_a.each do |annot|
next unless annot
text = annot[:Contents].to_s.squish
next unless text.starts_with?('{{') && text.ends_with?('}}')
result_handler.call({ text:, rect: annot[:Rect] }, page, acc)
page[:Annots].delete(annot)
end
process_handler_instance.result.each do |item|
result_handler.call(item, page, acc)
end
end
new_io = StringIO.new
doc.write(new_io, validate: false)
[new_io.tap(&:rewind).read, acc]
end
end
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