You have Integer#to_s(base) and String#to_i(base) available to you. Integer#to_s(base) converts a decimal number to a string representing the number in the base specified: 9.to_s(2) #=> “1001” while the reverse is obtained with String#to_i(base): “1001”.to_i(2) #=> 9
I just tried and it works with require “./tokenizer”.
I came across this exact issue today – getting warnings like this for gems that weren’t even installed! … Well, it turns out the gems were installed – for a different ruby than the one I had set active with chruby (2.2.3 vs 2.3.1). Switching to all the different rubies and running gem pristine –all … Read more
Try File.basename Returns the last component of the filename given in file_name, which must be formed using forward slashes (“/’’) regardless of the separator used on the local file system. If suffix is given and present at the end of file_name, it is removed. File.basename(“/home/gumby/work/ruby.rb”) #=> “ruby.rb” File.basename(“/home/gumby/work/ruby.rb”, “.rb”) #=> “ruby” In your case: File.basename(“C:\\projects\\blah.dll”, … Read more
First, you should open the file as a binary file. Then you can read the entire file in, in one command. file = File.open(“path-to-file.tar.gz”, “rb”) contents = file.read That will get you the entire file in a string. After that, you probably want to file.close. If you don’t do that, file won’t be closed until … Read more
Ruby does have a method for this: File.readlines(‘foo’).each do |line| puts(line) end http://ruby-doc.org/core-1.9.3/IO.html#method-c-readlines
Edit to original answer: Even though this is answer (as of the time of this comment) is the selected answer, the original version of this answer is outdated. I’m adding an update here to help others avoid getting sidetracked by this answer like I did. As the other answer mentions, Ruby >= 2.5 added the … Read more
puts adds a new line to the end of each argument if there is not one already. print does not add a new line. For example: puts [[1,2,3], [4,5,nil]] Would return: 1 2 3 4 5 Whereas print [[1,2,3], [4,5,nil]] would return: [[1,2,3], [4,5,nil]] Notice how puts does not output the nil value whereas print … Read more
alias_method can be redefined if need be. (it’s defined in the Module class.) alias‘s behavior changes depending on its scope and can be quite unpredictable at times. Verdict: Use alias_method – it gives you a ton more flexibility. Usage: def foo “foo” end alias_method :baz, :foo
#!/usr/bin/env ruby =begin Every body mentioned this way to have multiline comments. The =begin and =end must be at the beginning of the line or it will be a syntax error. =end puts “Hello world!” <<-DOC Also, you could create a docstring. which… DOC puts “Hello world!” “..is kinda ugly and creates a String instance, … Read more