Refactor for Ruby 3.0 compatibility

[alextsui05]

Closes #67

Internally, the segmenter uses PragmaticSegmenter::Text, a subclass of Ruby String, but as of Ruby 3, calling String methods no longer returns the subclass. This PR refactors code so that it doesn't depend on the subclass.

Changes

• Move helper method Text#apply to Rule#apply, which takes a string and applies a number of rules to it
• Replace Text with standard Ruby String
• Relax constraint on bundler version

[sevilaybayatli]

Hello,

I have been using pragmatic segmenter by following the steps below:
sudo apt-get install ruby-full
gem install pragmatic_segmenter

And after install the pragmatic_segmenter I got this:
Successfully installed pragmatic_segmenter-0.3.22
Parsing documentation for pragmatic_segmenter-0.3.22
Done installing documentation for pragmatic_segmenter after 0 seconds
1 gem installed

And using it to sengemet the sentences in a whole file by applying the code block below:
require 'pragmatic_segmenter'
if (ARGV.length < 3)
puts "\nUsage : ruby2.5 sentenceTokenizer.rb 639-1ISOlangCode textFilePath sentencesFilePath"
exit
end
File.open(ARGV[1]).each do |line1|
line1.delete! ('()[]{}<>|$/'"')
ps = PragmaticSegmenter::Segmenter.new(text: line1, language: ARGV[0], doc_type: 'txt')
sentences = ps.segment
File.open(ARGV[2], "a") do |line2|
sentences.each { |sentence| line2.puts sentence }
end
end

But the problem now I got the error below:
Traceback (most recent call last):
2: from sentenceTokenizer.rb:1:in

' 1: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in require'
/usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require': cannot load such file -- pragmatic_segmenter (LoadError)

Could you point me please? the same code and same steps have been used before and worked? I am curious, why I got this error now. Help

[alextsui05]

Hi @sevilaybayatli, the above comment is off-topic for this PR, but I saw you opened an issue so I tried to respond over there, so let's take the discussion over there instead! 🙌 #69 (comment)

[ncs1]

Hi,
Thank you for this PR.
Using it on Ruby 3, please review @diasks2

[diasks2]

Thank you @alextsui05! Sorry for the delay in getting this merged.