Unicode Issues in Programing Languages Golang Python Ruby JavaScript Java emacs lisp.

Publicado em: 01 Janeiro 1970
no canal de: Xah Lee

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topics talked:
• golang demo. and live coding. modify the find/replace script, so that it prints the list of find/replace string pairs each in separate lines.
• 〈Golang: Find Replace Script〉 [ http://xahlee.info/golang/goland_find... ]
• 〈Golang Tutorial〉 [ http://xahlee.info/golang/golang_inde... ]
• file encoding declaration convention -*- coding: utf-8; mode: xah-find-output -*-
• what are the issues of unicode in a programing language
• the encoding of the source code. what encoding is allowed or required for language x? if the language allows a choice of encoding, then how do you declare such encoding?
• 〈Unicode for Programers〉 [ http://xahlee.info/comp/unicode_essay... ]
• 〈Python: Unicode Tutorial 🐍〉 [ http://xahlee.info/python/unicode.html ]
• 〈Ruby: Unicode Tutorial 💎〉 [ http://xahlee.info/ruby/ruby_unicode.... ]
• 〈Perl: Unicode Tutorial 🐪〉 [ http://xahlee.info/perl/perl_unicode.... ]
• console.log ( "😂".length === 2); // true
• 〈JS: String Overview〉 [ http://xahlee.info/js/js_string.html ]
• 〈JS: Character, Code Unit, Codepoint〉 [ http://xahlee.info/js/js_string_byte_... ]
• 〈Golang: String〉 [ http://xahlee.info/golang/golang_stri... ]
• how does programing language X deal with strings? In general, different language have completely totally different approach on how to deal with strings?
• For example, what is a string? in JavaScript and java, a string is a sequence of 16bits values. in python3 and elisp, a string is a sequence of unicode characters. (by the way, what is a character?) in golang and python2, a string is a sequence of 8 bits bytes.
• 〈Unicode in Function Names and Operator Symbol〉 [ http://xahlee.info/comp/unicode_suppo... ]
• Σ codepoint 931
• ∑ codepoint 8721

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