The type of parser presented here is a recursive descent parser. This is the easiest parser to implement for simple grammars. However, this is not how commercial parsers are written — larger parsers use generated action and goto tables to handle their branches instead of manually written methods...
A recursive descent parser uses one function for each nonterminal in the grammar. It starts from the starting rule and goes down from there (hence “descent”), figuring out which rule to apply in each function. The “recursive” part is vital because we can nest nonterminals recursively! Re...
This is a follow up to Writing a Parser in Swift (I), I'd highly suggest reading that first if you haven't already.Last time, we looked at Context-free Grammars, Recursive Descent Parsing and Operator Precedence Parsing. Let's complete the missing pieces in our trivial language, Kaleidosco...
What the Pratt parsing technique and a recursive descent parser is What others talk about when they talk about built-in data structures What REPL stands for and how to build one Get a taste! Free sample Table of contents Why this book? This is the book I wanted to have a year ago....
How to build an interpreter for a C-like programming language from scratch What a lexer, a parser and an Abstract Syntax Tree (AST) are and how to build your own What closures are and how and why they work What the Pratt parsing technique and a recursive descent parser is What others ...
Recursive Descent Parser: Creates an abstract syntax tree (AST) from tokens Tree-Walking Evaluator: Executes the AST REPL: Interactive environment for testing Monkey code Code Examples Here's a taste of what Monkey code looks like: // Binding a value to a name let age = 1; // Defining a...
–What the Pratt parsing technique and a recursive descent parser is –What others talk about when they talk about built-in data structures –What REPL stands for and how to build one Why this book This is the book I wanted to have a year ago. This is the book I couldn’t find. I...