It solves the same kind of problems as a parser generator, just without any code generation . There is a single dependency to regexp-to-ast library. You can vote up the examples you like and your votes will be used in our system to generate more good examples. So if 26 weeks out of the last 52 had non-zero commits and the rest had zero commits, the score would be 50%. Chevrotain supports many advanced features typical of parser generators: like semantic predicates, separate lexer and parser and a grammar definition (optionally) separated from the actions. Chevrotain falls under the category of "libraries out there for parsing that are 100% javascript" as it performs no code generation. This short example uses the TextFieldParser. There is nothing special about the parsing algorithm. The Parsing DSL Docs. Some examples in JavaScript include Myna, Parsimmon, and Chevrotain. You can explicitly implement the lookahead function in any point the grammar. The delimiters tell the parser where fields end and new fields begin on a single line. These examples are extracted from open source projects. chevrotain typings. Other Examples. This makes it a useful tool for searching through large and/or multiple logs. This dependency is included in the bundled artifacts, for ease of consumption in browsers. Use a parsing library — a library that allows the expression of the parse rules as an API. Java SAX Parser Example Tutorial. Basically, you point Log Parser to a source, tell it what format the logs are in, define a query, and write the output somewhere. We have collection of more than 1 Million open source products ranging from Enterprise product to small libraries in all platforms. A very good introductory tutorial on parsing in general is Let's Build a Compiler - it demonstrates how to build a recursive descent parser; and the concepts are easily translated from his language (I think it was Pascal) to C# for any competent developer. A design I like combines a combinator library with an optional facade that gives you a convenient grammar syntax a la a parser generator -- for example, Lua's LPEG works this way. Writing parsers in TypeScript / JavaScript using the Myna Parsing Library This module defines a class HTMLParser which serves as the basis for parsing text files formatted in HTML (HyperText Mark-up Language) and XHTML.. class html.parser.HTMLParser (*, convert_charrefs=True) ¶. A more in depth description of Chevrotain can be found in this great article on: Parsing in JavaScript: Tools and Libraries. for all of the above libraries. Some examples in JavaScript include Myna, Parsimmon, and Chevrotain. SAXParser, XMLReader, SAXParserFactory, ContentHandler, DefaultHandler, startElement, endElement. FAQ. Use a parsing library — a library that allows the expression of the parse rules as an API. I may try to upgrade it to LL(*) in the future. chevrotain by SAP - Parser Building Toolkit for JavaScript. Create a parser instance able to parse invalid markup.