Interactive PetitParser Examples

BibTeX Browser & Search: Downloads and parses real-world BibTeX databases directly in your browser with filtering, full-text search, and citation export.
Dart Grammar Visualizer: Parses Dart source code into typed ASTs, highlighting language features and measuring parsing performance.
JSON Parser: Compares the native JSON parser against the one written with PetitParser.
Lisp Interpreter: A reasonably complete interpreter that is able to parse and evaluate complex programs.
Math Evaluator: Parses and evaluates mathematical expressions.
Math Plotter: Parses and plots mathematical expressions.
Pascal Grammar Visualizer: Parses Pascal source code into typed ASTs, highlighting language features and measuring parsing performance.
Prolog Interpreter: A reasonably complete interpreter that is able to parse and evaluate basic logic programs.
Regular Expression Playground: Parses regular expressions, compiles them to Non-deterministic Finite Automata (NFA), and matches them against input text with interactive visualization.
Smalltalk Parser: Contains the beginnings of a Smalltalk Interpreter. Currently only the parsed AST is printed.
Tabular Text Parser: Parseres comma-separated or tab-separated tabular textual data.
URI Parser: Parses and decomposes URIs into their individual components.
XML Parser: Parses XML files to events, creates and pretty-prints a DOM tree, and evaluates XPath expressions.