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http://xahlee.info/comp/unicode_support_ruby_python_elisp.html
Basically, almost all programing language today (as of 2019) support unicode in string or source code. Here's a table showing support of unicode in identifier, and defining operators. Unicode in Identifier and Operator; ... Ruby. Ruby has robust support of Unicode, starting with version 1.9. (2007)
https://www.honeybadger.io/blog/ruby-s-unicode-support/
Feb 14, 2017 · Testing Ruby's Unicode Support To see how far Ruby's Unicode support has come, I tested every string method to see which ones violate the principle of least surprise. The results are presented as a handy table that you can reference to see which string manipulation methods are Unicode-unfriendly.
https://stackoverflow.com/questions/4149388/does-ruby-support-unicode-and-how-does-it-work
That's not true. What is true is that Ruby does not support only Unicode, it supports a whole slew of other encodings as well.. This is in contrast to systems such as Java, .NET or Python, which follow the "One Encoding To Rule Them All" model.
https://www.rubyguides.com/2019/05/ruby-ascii-unicode/
Here’s some Unicode: ɑΩϕβΣπ These are characters from the Greek alphabet which can’t be displayed using ASCII. How to Use Unicode in Ruby. Ruby has support for Unicode, it’s enabled by default since Ruby 1.9. So you can do this: π = 3.141592 Or this: def ★★★ puts "You get 3 stars, great job!"
https://blog.daftcode.pl/fixing-unicode-for-ruby-developers-60d7f6377388
May 10, 2017 · W e’ve already learned about the history of Unicode and how it works under the hood.In this final part, we’ll learn the theory and practice of handling Unicode properly. Before we get into practice I’d like to talk a bit about Unicode support in Ruby language.
https://www.honeybadger.io/blog/ruby-unicode-normalization/
The String#unicode_normalize method was introduced in Ruby 2.2. Being written in Ruby, it's not as fast as normalization libraries like the utf8_proc and unicode gems that leverage C. The reason we need normalization is that in Unicode there is more than one way to write a character.
http://www.tbray.org/ongoing/When/200x/2006/10/22/Unicode-and-Ruby
The Problem · Right now, Ruby sees a String as a byte sequence, and doesn’t provide much in the way of character-oriented, as opposed to byte-oriented, functions. Also, it has very little built-in knowledge of Unicode semantics, aside from a few UTF-8 packing and unpacking capabilities, and some rudimentary regular expression support.
https://rosettacode.org/wiki/Unicode_strings
Perl 6 intends to support Unicode even better than Perl 5, which already does a great job in recent versions of accessing large swaths of Unicode spec. functionality. Perl 6 improves on Perl 5 primarily by offering explicitly typed strings that always know which operations are sensical and which are not.
https://en.wikipedia.org/wiki/Ruby_character
Ruby markup support can also be added to some browsers that support custom extensions. Ruby markup is structured such that a fallback rendering, consisting of the ruby characters in parentheses immediately after the main text, appears if the browser does not support ruby.
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