How To Install psgml on Ubuntu 22.04

In this tutorial we learn how to install psgml on Ubuntu 22.04. psgml is Emacs major mode for editing SGML documents

Introduction

In this tutorial we learn how to install psgml on Ubuntu 22.04.

What is psgml

psgml is:

PSGML is a major mode for the editor Emacs used for editing SGML documents. It contains a simple SGML parser and can work with any DTD. (The most popular nowadays are the HTML DTDs. This package turns your emacs into the one of most powerful HTML editors and will be ultimately flexible as well, since you could upgrade your editor by just installing new DTDs). Functions provided includes menus and commands for inserting tags with only the contextually valid tags, identification of structural errors, editing of attribute values in a separate window with information about types and defaults, and structure based editing.

Since psgml parses the DTD to allow you to edit SGML documents, you do need to have the DTDs installed in order to use psgml. Since psgml installs itself as an HTML mode in Emacs, it depends on sgml-data. Some other packages which also provide SGML DTDs are suggested, like debiandoc-sgml and linuxdoc-sgml.

SGML, a language for encoding the structure of a document, is an ISO standard: ISO 8879:1986 “Information processing - Text and office systems - Standard Generalized Markup Language (SGML)”.

Psgml is a standard package for XEmacs, and thus this package does not install itself for XEmacsen.

The official home page has not been updated since 2005. The latest version of this package was built from an unofficial version at URL:http://www.fsavigny.de/gpled-software/psgml-1.4.0.tar.gz

There are three methods to install psgml on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install psgml Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install psgml using apt-get by running the following command:

sudo apt-get -y install psgml

Install psgml Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install psgml using apt by running the following command:

sudo apt -y install psgml

Install psgml Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install psgml using aptitude by running the following command:

sudo aptitude -y install psgml

How To Uninstall psgml on Ubuntu 22.04

To uninstall only the psgml package we can use the following command:

sudo apt-get remove psgml

Uninstall psgml And Its Dependencies

To uninstall psgml and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove psgml

Remove psgml Configurations and Data

To remove psgml configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge psgml

Remove psgml configuration, data, and all of its dependencies

We can use the following command to remove psgml configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge psgml

References

Summary

In this tutorial we learn how to install psgml package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.