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Mar 01: Michael Sanders demos an X-windows GUI for AWK.

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categories: Xgawk,XML,Awk100,Apr,2009,JurgenK

XMLgawk

Editor's note: Programmers often take awk "as is", never thinking to use it as a lab in which they can explore other language extensions. An alternate approach is to treat the Awk code base as a reusable library of parsers, regular expression engines, etc etc and to make modifications to the lanugage. This second approach is taken in the Awk A* project and, as shown here, in XMLgawk.

IMHO, XMLgawk is one of the most exciting new innovations seen in Gawk for many years. It shows that Awk is more than "just" a text processor: rather it is also a candidate technology for modern XML-based web applications. )

Purpose

Extends standard gawk with built-in XML processing.

Developers

Main developers: Jurgen Kahrs and Andrew Schorr.

Conceptual guidance: Manuel Collado.

MS Windows build expert: Victor Paeza.

Contributor of ideas for new features: Peter Saveliev.

Domain

XML processing, plus libraries for other extensions to Gawk.

Description

XMLgawk is an experimental extension of the GNU Awk interpreter. It includes a small XML parsing library which is built upon the Expat XML parser. The parsing library is a very thin layer on top of Expat (implementing a pull-interface) and can also be used without GNU Awk to read XML data files.

Both, XMLgawk and its XML puller library only require an ANSI C compatible compiler (GCC works, as do most vendors' ANSI C compilers) and a 'make' program.

XMLgawk provides the following functionality including:

  • AWK's way of reading data line by line is supplemented by reading XML files node by node.
  • XMLgawk can load .awk file as as well as shared libraries.
  • Adds support for an @include directive in the source code. This is the same feature provided by the current igawk script.

Current

3=Released

Use

3=Free/public domain.

Date Deployed

November 2003.

Dated

April 28, 2009.

Url

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