1 \input texinfo @c -*-texinfo-*-
3 @setfilename tasks.info
4 @settitle GNU Task List
5 @c This date is automagically updated when you save this file:
6 @set lastupdate September 22, 1998
13 @author Free Software Foundation
14 @author last updated @value{lastupdate}
18 @node Top, Intro, (dir), (dir)
21 This file is updated automatically from @file{tasks.texi}, which was
22 last updated on @value{lastupdate}.
29 * Unix-Related Projects::
32 * X Windows Projects::
33 * Encryption Projects::
36 * Games and Recreations::
40 @chapter About the GNU Task List
42 If you did not obtain this file directly from the GNU project and
43 recently, please check for a newer version. You can ftp the task list
44 from any GNU FTP host in directory @file{/pub/gnu/tasks/}. The task
45 list is available there in several different formats: @file{tasks.text},
46 @file{tasks.texi}, @file{tasks.info}, and @file{tasks.dvi}. The GNU
47 HURD task list is also there in file @file{tasks.hurd}.
48 @c to fix an overfill, join the paragraphs -len
49 The task list is also available on the GNU World Wide Web server:
50 @uref{http://www.gnu.org/prep/tasks_toc.html}.
52 If you start working steadily on a project, please let @email{gvc@@gnu.org}
53 know. We might have information that could help you; we'd also like to
54 send you the GNU coding standards.
56 Because of the natural tendency for most volunteers to write programming
57 tools or programming languages, we have a comparative shortage of
58 applications useful for non-programmer users. Therefore, we ask you to
59 consider writing such a program.
61 Typically, a new program that does a completely new job advances
62 the GNU project, and the free software community, more than an
63 improvement to an existing program.
65 Typically, new features or new programs advance the free software
66 community more, in the long run, than porting existing programs. One
67 reason is that portable new features and programs benefit people on many
68 platforms, not just one. At the same time, there tend to be many
69 volunteers for porting---so your help will be more valuable in other
70 areas, where volunteers are more scarce.
72 Typically, it is more useful to extend a program in functionality than
73 to improve performance. Users who use the new functionality will
74 appreciate it very much, if they use it; but even when they benefit from
75 a performance improvement, they may not consider it very important.
77 @node Highest Priority
78 @chapter Highest Priority
80 This task list mentions a large number of tasks that would be more or
81 less useful. With luck, at least one of them will inspire you to start
82 writing. It's better for you to work on any task that inspires you than
83 not write free software at all.
85 But if you would like to work on what we need most, here is a list of
86 high priority projects.
90 If you are good at writing documentation, please do that.
93 If you are very good at C programming and interested in kernels, you can
94 help develop the GNU HURD, the kernel for the GNU system. Please have a
95 look at @uref{http://www.gnu.org/software/hurd/hurd.html}, and
96 then get a copy of the latest HURD task list from:
101 @uref{http://www.gnu.org/prep/tasks.hurd.html}, via the World Wide
105 @uref{ftp://ftp.gnu.org/pub/gnu/tasks/tasks.hurd}, via anonymous FTP.
108 @email{gnu@@gnu.org} via e-mail.
113 If you are a Scheme fan, you can help develop Guile. Please have a look
114 at the URL @uref{http://www.gnu.org/software/guile/guile.html}
115 and then contact the Guile developers at @email{guile@@gnu.org}.
121 Help develop software to emulate Windows NT on top of GNU systems.
122 For example, you could help work on Willows Twin.
125 Implement the Kermit data transfer protocol. (See below.)
127 @ignore This is being done (Harmony)
129 Develop a free compatible replacement for Qt, a GUI toolkit library. Qt
130 is not free software, because users are prohibited from distributing
131 modified versions. Thus, Qt cannot be included in a free operating
132 system (adding it would make the system as a whole non-free).
134 But some developers are writing free applications that use Qt and cannot
135 run without it. These programs, although free software, are useless for
136 free operating systems because there is no way to make them run.
138 This is leading to a serious problem, and a free replacement for Qt is
139 the only solution. Hence the high degree of urgency of this project.
143 Develop a free replacement for a semi-free program such as Xv or POV.
144 These semi-free programs are less restricted than typical proprietary
145 programs, but too restricted to be part of any free operating system.
148 Develop a substitute, which runs on GNU systems, for some very popular
149 or very important application that many non-programmers use on Windows,
150 and which has no comparable free equivalent now.
154 @chapter Documentation
156 We very urgently need documentation for many existing parts of the
159 Note that there are proprietary manuals for many of these topics, but
160 proprietary manuals do not count, because we are not free to copy and
161 modify them along with the software they document. For this reason,
162 we do not recommend any non-free manuals.
166 A C reference manual. (RMS made a try at one, which you could start
170 Reference manuals for C++, Pascal, Fortran 77, and Java.
173 A manual for Ghostscript.
179 A good free reference manual for Perl. The free Perl on-line reference
180 documentation is good, for what it is--a list of functions and a
181 description of each--but that is not the same as a reference manual.
182 (Compare, for example, the Emacs Lisp Reference Manual with the
183 collection of documentation strings of Emacs Lisp functions.)
186 A good free Perl language tutorial introduction. The existing Perl
187 introductions are published with restrictions on copying and
188 modification, so that they cannot be part of a GNU system.
191 A manual for PIC (the graphics formatting language).
194 A book on how GCC works and why various machine descriptions
195 are written as they are.
198 A manual for programming X-window applications.
201 Manuals for various X window managers.
204 Reference cards for those manuals that don't have them: C
205 Compiler, Make, Texinfo, Termcap, and maybe the C Library.
208 Many utilities need documentation, including @code{grep} and others.
211 @node Unix-Related Projects
212 @chapter Unix-Related Projects
217 Modify the GNU @code{dc} program to use the math routines of GNU
222 A @code{grap} preprocessor program for @code{troff}.
225 Less urgent: make a replacement for the ``writer's workbench'' program
226 @code{style}, or something to do the same kind of job. Compatibility
227 with Unix is not especially important for this programs.
230 @node Kernel Projects
231 @chapter Kernel-Related Projects
235 An over-the-ethernet debugger stub that will allow the kernel to be
236 debugged from GDB running on another machine.
238 This stub needs its own self-contained implementation of all protocols
239 to be used, since the GNU system will use user processes to implement
240 all but the lowest levels, and the stub won't be able to use those
241 processes. If a simple self-contained implementation of IP and TCP is
242 impractical, it might be necessary to design a new, simple protocol
243 based directly on ethernet. It's not crucial to support high speed or
244 communicating across gateways.
246 It might be possible to use the Mach ethernet driver code, but it would
250 A shared memory X11 server to run under MACH is very desirable. The
251 machine specific parts should be kept well separated.
254 An implementation of CIFS, the ``Common Internet File System,'' for the
255 HURD. This protocol is an offshoot of SMB.
259 @chapter Extensions to Existing GNU Software
263 Enhance GCC. See files @file{PROJECTS} and @file{PROBLEMS} in the GCC
267 Interface GDB to Guile, so that users can write debugging commands in
268 Scheme. This would also make it possible to write, in Scheme, a
269 graphical interface that uses GTK and is tightly integrated into GDB.
272 Extend Octave to support programs that were written
276 Rewrite Automake in Scheme, so it can run in Guile. Right now it is
277 written in Perl. There are also other programs, not terribly long,
278 which we would also like to have rewritten in Scheme.
281 Finish the partially-implemented C interpreter project.
284 Help with the development of GNUstep, a GNU implementation of the
285 OpenStep specification.
288 Add features to GNU Make to record the precise rule with which each file
289 was last recompiled; then recompile any file if its rule in the makefile
293 Add a few features to GNU @code{diff}, such as handling large input
294 files without reading entire files into core.
297 An @code{nroff} macro package to simplify @code{texi2roff}.
300 An implementation of XML (see @uref{http://www.w3.org/XML/}).
303 A queueing system for the mailer Smail that groups pending work by
304 destination rather than by original message. This makes it possible
305 to schedule retries coherently for each destination. Talk to
306 @email{tron@@veritas.com} about this.
308 Smail also needs a new chief maintainer.
311 Enhanced cross-reference browsing tools. (We now have something at
312 about the level of @code{cxref}.) We also could use something like
313 @code{ctrace}. (Some people are now working on this project.)
316 @node X Windows Projects
317 @chapter X Windows Projects
321 An emulator for Macintosh graphics calls on top of X Windows.
324 A music playing and editing system. This should work with LilyPond, a
325 GNU program for music typesetting.
328 An ephemeris program to replace xephem (which is, alas, too restricted
329 to qualify as free software).
332 A program to edit dance notation (such as labanotation) and display
333 dancers moving on the screen.
336 Make sure the Vibrant toolkit works with LessTif instead of Motif.
339 A program to display and edit Hypercard stacks.
342 A program for graphic morphing of scanned photographs.
345 @node Encryption Projects
346 @chapter Encryption Projects
348 These projects need to be written outside the US by people who are not
349 US citizens, to avoid problems with US export control law.
353 A free library for public-key encryption.
355 This library should use the Diffie-Helman algorithm for public key
356 encryption, not the RSA algorithm, because the Diffie-Helman patent in
357 the US expired in 1997. This library can probably be developed from
358 the code for the GNU Privacy Guard (now in development).
361 A free secure telnet program more or less like ssh/sshd. Since this
362 requires a public key encryption algorithm, it should be based
363 on the library above.
365 This program should follow the draft standard for ssh. As always, it
366 cannot implement the RSA algorithm, but must instead support the
367 alternatives that will be patent-free in late 1997. It cannot support
368 IDEA, but can use triple-DES and/or Blowfish or other non-patented
372 Free software for doing secure commercial transactions on the web.
373 This too needs public key encryption.
376 A free replacement for PGP is no longer listed here because the GNU
377 Privacy Guard will do that job.
380 @chapter Other Projects
382 If you think of others that should be added, please
383 send them to @email{gnu@@gnu.org}.
388 A program to reformat HTML source to make it easier to read as HTML.
391 A simple PC BIOS. On most new PCs, the BIOS is stored in writable
392 memory (misleadingly known as ``flash ROM''). In order to have a wholly
393 free system on these PCs, we need a free BIOS.
395 This task is made simpler by the fact that this BIOS need only support
396 enough features to enable a boot-loader such as LILO or GRUB to finish
397 loading the kernel. Neither Linux nor Mach actually uses the BIOS once
398 it starts up. Also, it is not absolutely necessary to do all the many
399 diagnostics that an ordinary BIOS does (though it would be useful to do
400 some of them). However, there may be a need to configure certain data
401 in the computer in a way that is specific to each model of computer.
404 A free program that can transfer files on a serial line
405 using the same protocol that Kermit uses.
408 An imitation of Page Maker or Ventura Publisher.
411 An imitation of @code{dbase2} or @code{dbase3} (How dbased!)
414 A general ledger program, including support for accounts payable,
415 account receivables, payroll, inventory control, order processing, etc.
418 A teleconferencing program which does the job of CU-SeeMe (which is,
419 alas, not free software).
422 A free replacement for Glimpse, which is not free software.
425 A program to typeset C code for printing, to make it easier to read on
426 paper. For ideas on what to do, see the book,
429 Human Factors and Typography for More Readable Programs,
430 Ronald M. Baecker and Aaron Marcus,
431 Addison-Wesley, ISBN 0-201-10745-7
434 But you don't have to do exactly what they propose.
437 @c This is now being worked on -- rms, 22 June 1998
439 A program to convert Microsoft Word documents to text/enriched, TeX,
440 LaTeX, Texinfo, or some other format that free software can edit.
444 @c People are helping the developer of siff release it as free software.
447 A free replacement for siff (sometimes called sif). This would be a
448 program to find similar files in a large file system, ``similar''
449 meaning that the files contain a significant number of common substrings
450 that are of a certain size or greater. You can find some information
451 about siff (which is, unfortunately, not free software) at
452 @uref{ftp://ftp.cs.arizona.edu/reports/1993/TR93-33.ps.Z}.
456 @c This is being developed -- rms, 3 May 1998
458 A free replacement for the semi-free Qt library.
462 High-quality music compression software.
463 (Talk with @email{phr@@netcom.com} for relevant suggestions.)
466 A program to play sound distributed in ``Real Audio'' format.
469 A program to generate ``Real Audio'' format from audio input.
472 Programs to handle audio in RTSP format.
474 @ignore @c Software patents have made this domain off limits to free software.
476 An MPEG III audio encoder/decoder (but it is necessary to check, first,
477 whether patents make this impossible).
481 Speech-generation programs (there is a program from Brown U that you
485 Speech-recognition programs (single-speaker, disconnected speech is sufficient).
489 A program to display text word by word, always showing just one word at
490 a time. This method permits much faster reading than ordinary text
491 display. If you want to work on this, contact @email{stutz@@dsl.org} to
496 More scientific mathematical subroutines.
497 (A clone of SPSS is being written already.)
503 A scientific data collection and processing tool,
504 perhaps something like Scientific Workbench and/or Khoros,
507 Software to replace card catalogues in libraries.
510 A project-scheduling package that accepts a list of project sub-tasks
511 with their interdependencies, and generates Gantt charts and Pert charts
512 and all the other standard project progress reports.
515 Grammar and style checking programs.
518 A translator from Scheme to C.
521 A fast emulator for the i386 which works by translating
522 machine instructions into the machine language of the host machine.
523 (Support for emulation of other machines would enhance the program
524 but might make it much more difficult.)
527 A map display or geographic information system.
530 Optical character recognition programs; especially if suitable for
531 scanning documents with multiple fonts and capturing font info as well
532 as character codes. Work is being done on this, but more help is needed.
535 A program to scan a line drawing and convert it to Postscript.
538 A program to recognize handwriting.
541 A pen based interface.
544 CAD software, such as a vague imitation of Autocad.
547 A program to receive data from a serial-line tap to facilitate the
548 reverse-engineering of communication protocols.
552 @chapter Compilers for Other Batch Languages
554 Volunteers are needed to write parsers/front ends for languages such as
555 Algol 60, Algol 68, PL/I, Cobol, Fortran 90, or whatever, to be
556 used with the code generation phases of the GNU C compiler.
558 @c Fortran status is here so gnu@gnu.org and the volunteer coordinators
559 @c don't have to answer the question -len
560 You can get the status of the Fortran front end with this command:
563 finger -l fortran@@gnu.org
566 @node Games and Recreations
567 @chapter Games and Recreations
569 Video-oriented games that work with the X window system.
573 Empire (there is a free version but it needs upgrading)
576 An ``empire builder'' system that makes it easy to write various kinds of
580 Improve GnuGo, which is not yet very sophisticated.
583 A Hierarchical Task Network package which can be used
584 to program play the computer's side in various strategic games.
587 Write imitations of some popular video games:
591 Space war, Asteroids, Pong, Columns.
593 Defending cities from missiles.
595 Plane shoots at lots of other planes, tanks, etc.
597 Wizard fights fanciful monsters.
600 @ignore Being done by jhall1@isd.net
602 Program a robot by sticking building blocks together,
603 then watch it explore a world.
606 Biomorph evolution (as in Scientific American and @cite{The Blind
609 A program to display effects of moving at relativistic speeds.
613 We do not need @code{rogue}, as we have @code{hack}.
619 update-date-leading-regexp: "@c This date is automagically updated when you save this file:\n@set lastupdate "
620 update-date-trailing-regexp: ""
621 eval: (load "/gd/gnuorg/update-date.el")
622 eval: (add-hook 'write-file-hooks 'update-date)