Terence Parr, a professor at the University of San Francisco, leads ANTLR development on the web site. The next article explores ANTLR's advanced features. This article presents the basics of ANTLR's usage and walks through the development of an application capable of parsing mathematical expressions. Instead, my goal is to provide a practical overview of ANTLR for C++ developers.
These articles don't delve into the theory of parsing, so I won't discuss the merits of LL parsing versus LALR analysis. This article and the next focus on ANTLR (ANother Tool for Language Recognition), which can be freely downloaded here. There are many options available, including GNU Bison and Lex/Yacc. Rather than write a parser from scratch, it's easier to use a tool that generates parsing code. In both cases, the process of analyzing the structure of text is called parsing. Modern text editors analyze documents to check for errors in spelling and grammar. Visual Studio analyzes code while you type and provides feedback and recommendations. Many applications need to analyze the structure of text.
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