ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files. It's widely used to build languages, tools, and frameworks. From a grammar, ANTLR generates a parser that can build and walk parse trees. Twitter search uses ANTLR for query parsing, with over 2 billion queries a day. 
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The languages for Hive and Pig, the data warehouse and analysis systems for Hadoop, both use ANTLR. Lex Machina uses ANTLR for information extraction from legal texts. Oracle uses ANTLR within SQL Developer IDE and their migration tools. NetBeans IDE parses C++ with ANTLR. The HQL language in the Hibernate object-relational mapping framework is built with ANTLR. 

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files. It's widely used to build languages, tools, and frameworks. From a grammar, ANTLR generates a parser that can build and walk parse trees. Twitter search uses ANTLR for query parsing, with over 2 billion queries a day. 


ANTLR - ANother Tool for Language Recognition

Blackfriday is a Markdown processor implemented in Go. It is paranoid about its input (so you can safely feed it user-supplied data), it is fast, it supports common extensions (tables, smart punctuation substitutions, etc.), and it is safe for all utf-8 (unicode) input.HTML output is currently supported, along with Smartypants extensions.

Blackfriday - A markdown processor for Go

sqlparse is a non-validating SQL parser for Python. It provides support for parsing, splitting and formatting SQL statements.

Sqlparse - A non-validating SQL parser module for Python

Beautiful Soup is a Python HTML/XML parser designed for quick turnaround projects like screen-scraping. Beautiful Soup parses anything you give it, and does the tree traversal stuff for you. You can tell it "Find all the links", or "Find all the links of class externalLink", or "Find all the links whose urls match "foo.com", or "Find the table heading that's got bold text, then give me that text."
  <UL>
	<LI>It won't choke if you give it bad markup</LI>
	<LI>It provides Pythonic idioms for navigating, searching, and modifying a parse tree</LI>
	<LI>It Converts incoming documents to Unicode and outgoing documents to UTF-8.</LI>
 </UL>

Beautiful Soup is a Python HTML/XML parser designed for quick turnaround projects like screen-scraping. Beautiful Soup parses anything you give it, and does the tree traversal stuff for you. You can tell it "Find all the links", or "Find all the links of class externalLink", or "Find all the links whose urls match "foo.com", or "Find the table heading that's got bold text, then give me that text."

Beautiful Soup - Python HTML/XML parser

HtmlCleaner is HTML parser written in Java. HTML found on Web is usually dirty, ill-formed and unsuitable for further processing. HtmlCleaner reorders individual elements and produces well-formed XML. By default, it follows similar rules that the most of web browsers use in order to create Document Object Model. However, user may provide custom tag and rule set for tag filtering and balancing.

HtmlCleaner - HTML parser in Java

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ANTLR - ANother Tool for Language Recognition

Blackfriday - A markdown processor for Go

Sqlparse - A non-validating SQL parser module for Python

Beautiful Soup - Python HTML/XML parser

HtmlCleaner - HTML parser in Java

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ANTLR - ANother Tool for Language Recognition

Blackfriday - A markdown processor for Go

Sqlparse - A non-validating SQL parser module for Python

Beautiful Soup - Python HTML/XML parser

HtmlCleaner - HTML parser in Java

TechStack

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