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AbiWord’s Potential

By Larry Ayers

Introduction

There is a tension in the Linux community between developers, who
tend to be comfortable with their text editors and mark-up
formatting systems, and users who want the sort of word processor
common in the Mac and Windows worlds. This tension periodically
sparks discussions in newsgroups and mailing lists, but an Open
Source project has yet to produce a finished, fully usable word
processor. The release of GPLed source last year for the Maxwell
word processor failed to draw enough programmer interest to result
in an ongoing and dynamic project to complete the program, possibly
because of Maxwell’s reliance on the Motif widget set.

Of course the commercial products StarOffice, WordPerfect and
Applix Words are available for Linux. These are large applications;
I’m under the impression that many users desire something quick to
load and less complex, a word processor suitable for formatted
business letters and other shorter documents. Another factor
mitigating against the above commercial applications is the lack of
community involvement. I’ve noticed that closed-source applications
don’t seem to generate mailing list and newsgroup postings as
readily as do various free software projects. I rarely write
directly to developers involved in the various free software
projects I follow, but I know who they are and if the need happened
to arise I wouldn’t hesitate to make contact. Free software
projects typically attract a secondary level of co-developers and
skilled users who often frequent the various net forums answering
questions and providing assistance.

It has been suggested that writing a good word processor is such
a difficult task that it is beyond the capabilities of an Open
Source development process. More likely, I think, is that a large
enough group of programmers ardently desiring such an application
just hasn’t ever coalesced. Perhaps this sort of project is suited
for a hybrid approach, one involving both a commercial firm and
independent free-software programmers. AbiSource, Inc. is giving
this idea a try. AbiWord So Far Is it possible for an ambitious
Open Source project to thrive and produce useful results under the
sponsorship of a for-profit corporation? The Mozilla project is one
such undertaking. After over a year of source availability much has
been accomplished but the current binary releases, while
intriguing, aren’t yet as usable as the current releases of
Netscape Communicator. The bulk of the new code still seems to be
primarily coming from paid Netscape programmers. This might
indicate that free software programmers prefer working on projects
which aren’t under a corporate aegis; another possible reason is
the sheer size and complexity of the Mozilla code-base. Many
programmers might lack the time and/or skill to comprehend such a
project, and starting from scratch with a relatively new widget-set
(GTK) must further increase the difficulty.

The programmers who started AbiSource, Inc. don’t seem to be
daunted by the dearth of efforts to mix business with Open Source
from the very beginning of a project. Mozilla already had a massive
source tree when its development was opened to the outside world
last year, while Eric Allman’s Sendmail business followed years of
non-profit and open development; Eric had written a proven and
widely-used piece of software before he formed a company to provide
service for corporate users of Sendmail.

It should be kept in mind that these are still early days in the
intersection of the free software and business worlds. Another year
or so of experimentation with the various trials and ventures ought
to make evident which approaches have managed to make money without
driving away the developers and users in the free software
community. AbiSource is a new company gambling that its ideas will
prove viable and useful.

AbiSource’s goal is to provide basic Open Source business
applications for Linux, Windows, and BeOS users. Their idea is to
give their applications away and charge for service and
customization. Abi’s first product is a GTK-based word processor,
AbiWord. Outside programming help is welcomed and all of the usual
paraphernalia of an Open Source project, such as mailing lists, CVS
servers, and bug-reporting mechanisms, are available from the
AbiSource web-page, http://www.abisource.com. The number
of non-Abi volunteer programmers contributing code isn’t mentioned
on the site, but I believe that the completion of the BeOS port was
largely due to outside Be programmers.

It’s interesting that while the source code is under the GPL and
thus freely available and modifiable, the names AbiSource and
AbiWord are copyrighted. This is intended to protect whatever
reputation and name-recognition the company might gain if their
services become popular.

The most significant difference between AbiWord and nearly every
other word processor available is the nature of the native file
format. An *.abw file is written in XML and thus is also in ASCII
format; the files can be read by any text editor. This is quite a
break with word processor tradition and ensures that when you write
a document with AbiWord you don’t run the risk of being strictly
tied to one particular word processor, which may not even run on
machines five years from now. AbiWord can also save in the HTML and
RTF formats, both of which are accessible with word processors such
as MS-Word and WordPerfect. Due to limitations of HTML and RTF some
formatting information is lost (such as the specific fonts used),
but attributes such as bold and italic font styles and tab-settings
are retained. If XML really does become a widely-used and open
data-format (as its proponents predict) AbiSource might be in a
good position to gain users and clients.

Many Linux users would like to be able to read MS-Word files
with a Linux word processor. StarOffice, Applix Words, and
WordPerfect all come with filters for the ubiquitous format; these
filters usually work well with simple documents but more complex
documents with embedded macro routines are another matter.
AbiSource has chosen to avoid this particular can of worms; the RTF
support should ensure that simply formatted files can be exchanged
with Word users.

Linux users and developers in academia, with its strong unix
traditions, have less of a need to be able to deal with MS-Word
files than do the growing numbers of users coming to Linux from the
“real” world, the larger world of commerce and corporations. Until
the nearly universal usage of the MS-Word format for even the
simplest documents begins to decline, alternative word processors
will have to struggle to gain market-share. The fact that AbiWord
is free should be of some help, though there still exists a common
idea that free software is somehow suspect.

With the release of 0.7 (and most recently 0.7.1) AbiSource
began to make binaries freely available on their web-site and have
even pressed CDs which are available at a nominal price. This would
seem to indicate that the program has reached a state of usability.
I’ve been trying out the latest release; it’s serviceable but basic
and seems to be stable. I’ve not had it crash once. Few of the
paragraph and document formatting functions have been enabled at
this point, but font-changes and tab-settings work well. Zooming
(enlarging the apparent size of the document on the screen) is
enabled. The fonts can be changed either from a drop-down selector
or with the spiffy GTK font-selector dialog-box. Here is a
screenshot of version 0.7.1:

AbiWord window

Looks like a normal word processor, doesn’t it? Notice the red
squiggly lines beneath certain words; this is supposed to indicate
misspelled words. I have yet to find a way to turn it off. AbiWord
comes with its own dictionary, but there doesn’t yet seem to be a
way to spell-check a document. Many of the menu-items are
non-functional. Clicking on one of these summons a message-box
stating that “the [function] dialog hasn’t been implemented yet”
followed by a pointer to lines in the source file which need the
work, a thoughtful hint to a prospective code contributor.

If you give AbiWord a try, create a new file with a few lines of
content, save it, then examine the resultant *.abw
file with a text editor. Your content will be readable in this
file, with surrounding XML tags indicating formatting
specifications. As an example, here is the last line of the file
used in the above screenshot:


Variable line-spacing is now working. This is set now for one and one-half rather than single-spacing.

As you can see, the formatting tagging is comprehensible and
could even be modified “by hand”, in an editor rather than in the
word processor. The actual content is accessible, a welcome
difference from the usual binary word processor format in which the
content is immersed in a sea of unreadable binary symbols.

The source distribution contains some interesting examples of
*.abw files but these files were omitted from the
binary packages.

In the Linux version, and I assume in the Windows and BeOS
versions as well, printing is handled by the existing print system.
On my system the file seems to be converted to Postscript format,
then is passed to Ghostscript for processing by my print filter.
AbiWord uses standard Postscript Type 1 fonts, but for some reason
they need to be located in an Abi-specific directory. Several
standard fonts are supplied with AbiWord, but more can be added as
long as both the *.afm and the
*.pfa files are supplied for each font. As in
standard X Windows font installation, the index file
fonts.dir must be updated as well.


Conclusion

In its current state AbiWord is useful for writing short, simply
formatted documents, but lack of paragraph and document formatting
templates, as well as the lack of functional image insertion, limit
its scope. It seems to me that AbiSource has developed the base
structure of the word processor solidly, and the hooks for
completion of the feature-set are in place in skeletal form and
just need to be fleshed out. The decision to use an XML file format
should appeal to users who would like to use something other than
the exclusive binary file-formats of typical word processors.
Whether AbiSource will be able to keep the development process
alive until revenue is generated remains to be seen, but at least
the source code will remain available should they fail.


Copyright © 1999, Larry Ayers
Reprinted from Issue 43 of Linux Gazette