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lexer

A grammar describes the syntax of a programming language, and might be defined in Backus-Naur form (BNF). A lexer performs lexical analysis, turning text into tokens. A parser takes tokens and builds a data structure like an abstract syntax tree (AST). The parser is concerned with context: does the sequence of tokens fit the grammar? A compiler is a combined lexer and parser, built for a specific grammar.

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Squanchy is a brand new, easy to learn, general purpose, multi-paradigm, compiled programming language. The language is written from scratch (it includes an integrated lexer, parser, code generator etc). I tried to put together Python and Haskell (or at least the main features from both) in Squanchy. In other words you can use it as a scripting …

  • Updated Dec 7, 2019
  • Python