How to build your own programming language

How to build your own programming language

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  How to buildyour own programming language ? May 18, 2017
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  About me Work atxoxzo.com Web Developer PHP/Python/JavaScript … etc
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  It’s not MAGIC Itjust a translator ! How to translate word from BM to BI ?
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  Why learn tobuild programming language ? We are just consumer ! Not much research yet on programming language development (is there any ?) ● MalayBasic Current research ● LLVM - Low Level Virtual Machine, started in 2000 at the University of Illinois at Urbana–Champaign ● PyPy
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  Why learn tobuild programming language ? Understand computer better Understand current language better Need lot of different technical skills and the skills can be useful in writing any kind of software, not just compiler/interpreter Personal challenge, feel in control, Take a over the world ;) It’s fun
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  Two Separate roles Designinga language Writing compiler/interpreter for the language ********************************** The language specification The language implementation
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  Bootstrapping Python written inC (also in Java, .NET, and Python itself) Java written in C Go compiler originally written in C, now written in Go itself C written in what ?
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  Bootstrapping The first Pascalcompiler was written in Fortran
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  Bootstrapping The target isto become self-hosting - a compiler that can compile itself.
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  Jargon Lexer Parser Compiler/Interpreter Grammar AST
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  Lexing Recognize characters Tokenized Stream oftokens Parsing Recognize phrase - enforce grammar AST Set of structures Compiling Interpreting Converting to target language or executing the instructions
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  BUT ...
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  Where to start? Start small ... DSL, simple command - chatbot command Template language
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  Chat bot command /remindme to meet Amin at 9.00 AM tomorrow How to parse this ? [/command] [who] [what - tasks description][when]
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  Mail merge liketemplate
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  Mail merge liketemplate
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  Free choice onsyntax - {{ varname }}, %varname%, $varname etc Show user syntax error - substitution just silent on in invalid syntax Tell user exact line error occured. Just few lines of code, easy to understand instead of full blown template language. Why not just substitution ?
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  Shortcut ...
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  Resources Let’s build acompiler - classic (1989) - http://compilers.iecc.com/crenshaw/ ● Original article use Pascal, but being ported in lot of language http://createyourproglang.com/ - recommended by Matz (Ruby) and Jeremy Ashkenas (CoffeeScript) Let’s Build Simple Interpreter - https://ruslanspivak.com/lsbasi-part1/ https://interpreterbook.com/ - Go http://www.craftinginterpreters.com/ - Incomplete
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  Resources https://koditi.my/bagaimana-bahasa-pengaturcaraan/
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  Question ? https://koditi.my/