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Parsing raw text inputs in web applications using ANTLR

Blog post from LogRocket

Post Details
Company
Date Published
Author
Shalitha Suranga
Word Count
2,076
Language
-
Hacker News Points
-
Summary

The tutorial provides a comprehensive guide on creating a simple log parser using the ANTLR toolkit, which is a parser generator written in Java and widely used in software development for language recognition. It explains the process of building a parser to handle raw text inputs, focusing on converting log file content into HTML-styled output. The tutorial covers key compiler design concepts such as tokenization and parse trees, and details how to set up ANTLR with webpack for use in both front-end and back-end applications. It also includes step-by-step instructions on writing ANTLR grammar for a log file format, generating parser code, and developing a web application interface for the parser using plain HTML and JavaScript. The tutorial demonstrates how ANTLR can be used for various applications, including web transpilers and query languages, thereby enhancing web application capabilities.