Conata: awk

Introduction

This is an implementation of UNIX awk(1) by Nina. The target language is C#, and this runs on Windows or Mono.
This implementation based on orginal awk, and the features shown as follows are not suppoted.

• function definition
• pipes
• virtual device name such as /dev/stdout
• other extensions of GNU awk

codes

This implementation consists of the sources shown as follows.

• awk.nina: an awk parser
• AwkVm.cs: abstract syntax trees and byte code interpreter
• awkRegexParser.cs: a regular expression parser
• AwkRegex.cs: a regular expression engine
• awkPrintf.nina: printf() interpreter

The regular expression is extended regular expression, and its engine is a "DFA" engine in the sense of the book "Mastering Regular Expressions" by Jeffrey E.F. Friedl. (Theoritically, this constructs a "NFA" and emulates the automaton.)
If mono and make are available, you can build by Makefile included in downloaded zip file.