Editors

The following are a collection of editors and development environments known to have support for PL/I. In some instances this may be just as simple as syntax highlighting, others offer PL/I integration into a larger development environment.

GNU Emacs	http://www.gnu.org/software/emacs
GNU Emacs	GNU Emacs is an extensible, customizable text editor—and more. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. Mark Riggle has developed a PL/I mode for Emacs that can be found here. Details of the most recent version of Emacs ported to OpenVMS can be found here.
jEdit	http://www.jedit.org
	jEdit is a text editor written in Java. It runs on Windows, Unix/Linux, MacOS X and OpenVMS. Rob Watson has written a module that provides syntax highlighting for PL/I. This module thips with the editor which can be downloaded from here.
Vim	http://www.vim.org
	Vim (Vi improved) is a vi-compatible text editor that runs on nearly every operating system known to humanity (including OpenVMS). Michael Fitz has written a plugin for Vim, PLI-Tools, that provides syntax highlighting and indentation. The plugin and instructions on how to install and use it can be found here.
GNU nano	http://www.nano-editor.org
	GNU nano is a simple text editor designed to be a drop-in replacement for the Pico editor that is part of the Pine email suite. Tim Sneddon has written a simple syntax highlighting module that can be included in the user's .nanorc file. This can be downloaded here.
Language Sensitive Editor	http://h41379.www4.hpe.com/commercial/decset/decset_index.html
Language Sensitive Editor	The Language Sensitive Editor (LSE) is a commerical editor that ships as part of HP's DECset development tool chain for OpenVMS. It provides support for PL/I.
Ecplise	http://www.pliedit.com/
Ecplise	William Fenalson has developed PLIEDIT, a plugin for the Eclipse IDE. which provides a PL/I sensitive editor for the Eclipse framework. It supports syntax checking, highly customizable syntax colouring and supports the full IBM and ANSI language features.