RazyK is a LazyK implementetion by pure ruby.

Regextest generates sample string that matches with regular expression. Unlike similar tools, it recognizes anchors, charactor classes and other advanced notation of ruby regex. Target users are programmers or students for debugging/learning regular expression. You can use [sample application](http://goo.gl/5miiF4) without installation.

Nokogiri (鋸) is an HTML, XML, SAX, and Reader parser. Among Nokogiri's many features is the ability to search documents via XPath or CSS3 selectors. XML is like violence - if it doesn’t solve your problems, you are not using enough of it.

A JSON parser/generator that conforms (I believe) to RFC8259 "The JavaScript Object Notation (JSON) Data Interchange Format". This gem honors the syntax as possible. The generator guarantees that a parsed valid properly rounds-trip to identical valid JSON representation.

syntax by Ruby, performance by Go

This is a Ruby implementation for Rison that represents compact data in URIs. This module provides a parsing and dumping API like JSON module.

Rubic is a very simple Scheme interpreter written in Ruby.

Pure Ruby YANG parser and tree structure data store implementation

Nokogiri (鋸) is an HTML, XML, SAX, and Reader parser. Among Nokogiri's many features is the ability to search documents via XPath or CSS3 selectors. XML is like violence - if it doesn’t solve your problems, you are not using enough of it.

A library to ease development of roleplay games for textual enviroments

RFC7644 SCIM (System for Cross-domain Identity Management) 2.0 filter parser. See https://tools.ietf.org/html/rfc7644#section-3.4.2.2 This gem implements a filter syntax parser as well as an optional integration for integrating the filter with an Arel table.

Parser for simple search query language and an interpreter to produce PostgreSQL tsearch directives

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Specification and base implementation of the Spark API parsing system.

A Racc-based Ruby parser and generator for SQL statements

A Racc-based Ruby parser for SQL statements; forked from https://github.com/cryodex/sql-parser

Simple SQL search conditions parser (where clause)

Nokogiri (鋸) is an HTML, XML, SAX, and Reader parser. Among Nokogiri's many features is the ability to search documents via XPath or CSS3 selectors. XML is like violence - if it doesn’t solve your problems, you are not using enough of it.

TECSCDE - TECS Component Diagram Editor

Parse a reachability graph and process it using Mustache templates. Example State 2/2398339604900326310: / steps = <<"TenantManager", "Loader">> / db_data = {} / now = 1 / pc = [ Tail |-> "tail_wait", TenantManager |-> "tenant_manager" ] / db_tenants = {"t1"} / input_data = { [tenant |-> "t1", data |-> "d1"], [tenant |-> "t2", data |-> "d2"] } Transition -8297134421408988195 --> 2398339604900326310