json_parser

Description

json_parser is a Rust project that implements a JSON parser using the Pest parsing library.
It reads JSON text input (objects, arrays, strings, numbers, booleans, and null values) and converts it into a structured internal representation Abstract Syntax Tree (AST).

The parser can validate, analyze, and transform JSON data within Rust applications.

Technical Description

What Is Being Parsed

The input to this parser is a JSON-formatted string, for example:

{
  "name": "Valentyn",
  "age": 69,
  "skills": ["Rust", "Java"],
  "active": true
}

JSON Grammar Overview

file     = { object | array }
object   = { "{" ~ pair* ~ "}" }
pair     = { string ~ ":" ~ value }
array    = { "[" ~ value* ~ "]" }
value    = { object | array | string | number | boolean | null }
string   = { "\"" ~ inner ~ "\"" }
number   = { "-"? ~ int ~ frac? ~ exp? }
boolean  = { "true" | "false" }
null     = { "null" }