(swallow_events): New arg DO_DISPLAY.
[bpt/emacs.git] / etc / tasks.texi
1 \input texinfo @c -*-texinfo-*-
2 @c %**start of header
3 @setfilename tasks.info
4 @settitle GNU Task List
5 @c UPDATE THIS DATE WHENEVER YOU MAKE CHANGES!
6 @set lastupdate 6 April 1995
7 @c %**end of header
8
9 @setchapternewpage off
10
11 @titlepage
12 @title GNU Task List
13 @author Free Software Foundation
14 @author last updated @value{lastupdate}
15 @end titlepage
16
17 @ifinfo
18 @node Top, Documentation, (dir), (dir)
19 @top GNU Task List
20
21 This file is updated automatically from @file{tasks.texi}, which was
22 last updated on @value{lastupdate}.
23 @end ifinfo
24
25 Check with @code{gnu@@prep.ai.mit.edu}, for a possibly more current copy.
26 This task list is not exclusive; any other useful program might be a
27 good project---but it might instead be something we already have, so
28 check with @code{gnu@@prep} before you start writing it.
29
30 @menu
31 * Documentation::
32 * Unix-Related Projects::
33 * Kernel Projects::
34 * Extensions::
35 * X Windows Projects::
36 * Other Projects::
37 * Compilers::
38 * Games and Recreations::
39 @end menu
40
41 If you start working steadily on a project, please let @code{gnu@@prep}
42 know. We might have information that could help you; we'd also like to
43 send you the GNU coding standards.
44
45 Because of the natural tendency for most volunteers to write
46 programming tools or programming languages, we have a comparative
47 shortage of applications useful for non-programmer users. Therefore,
48 we ask you to consider writing such a program.
49
50 In general, a new program that does a completely new job advances the
51 GNU project more than an improvement to an existing program.
52
53 @node Documentation
54 @chapter Documentation
55
56 We very urgently need documentation for some parts of the system
57 that already exist or will exist very soon:
58
59 @itemize @bullet
60 @item
61 Completion of the documentation for CC-mode, a new C/C++ mode for
62 Emacs Lisp.
63
64 @item
65 A C reference manual. (RMS has written half of one which you could
66 start with).
67
68 @item
69 A manual for Ghostscript.
70 @c
71 @c @item
72 @c A manual for CSH.
73 @c Ick, do we want to encourage using THAT? -djm
74
75 @item
76 A manual for PIC (the graphics formatting language).
77
78 @item
79 A manual for Perl. (The books that exist are not free, and
80 thus not available to be part of the GNU system.)
81
82 @item
83 A manual for Oleo.
84
85 @item
86 A book on how GCC works and why various machine descriptions
87 are written as they are.
88
89 @item
90 A manual for programming X-window applications.
91
92 @item
93 Manuals for various X window managers.
94
95 @item
96 Reference cards for those manuals that don't have them: Gawk, C
97 Compiler, Make, Texinfo, Termcap and maybe the C Library.
98
99 @item
100 Many utilities need documentation, including @code{grep}, @code{cpio},
101 and other small utilities.
102 @end itemize
103
104 @node Unix-Related Projects
105 @chapter Unix-Related Projects
106
107 @itemize @bullet
108 @item
109 We could use an emulation of Unix @code{spell}, which would run by
110 invoking @code{ispell}.
111
112 @item
113 Less urgent: @code{diction}, @code{explain}, @code{style}.
114
115 @item
116 An improved version of the POSIX utility @code{pax}. There is one on
117 the Usenet, but it is said to be poorly written. Talk with
118 @code{mib@@gnu.ai.mit.edu} about this project.
119
120 @ignore
121 @item
122 Modify the GNU @code{dc} program to use the math routines of GNU
123 @code{bc}.
124 @end ignore
125
126 @item
127 A @code{grap} preprocessor program for @code{troff}.
128
129 @item
130 Various other libraries.
131
132 @item
133 An emulation of SCCS that works using RCS.
134 @end itemize
135
136 @node Kernel Projects
137 @chapter Kernel-Related Projects
138
139 @itemize @bullet
140 @item
141 An over-the-ethernet debugger stub that will allow the kernel to be
142 debugged from GDB running on another machine.
143
144 This stub needs its own self-contained implementation of all protocols
145 to be used, since the GNU system will use user processes to implement
146 all but the lowest levels, and the stub won't be able to use those
147 processes. If a simple self-contained implementation of IP and TCP is
148 impractical, it might be necessary to design a new, simple protocol
149 based directly on ethernet. It's not crucial to support high speed or
150 communicating across gateways.
151
152 It might be possible to use the Mach ethernet driver code, but it would
153 need some changes.
154
155 @item
156 A shared memory X11 server to run under MACH is very desirable. The
157 machine specific parts should be kept well separated.
158 @end itemize
159
160 @node Extensions
161 @chapter Extensions to Existing GNU Software
162
163 @itemize @bullet
164 @item
165 Enhance GCC. See files @file{PROJECTS} and @file{PROBLEMS} in the GCC
166 distribution.
167
168 @item
169 GNU @code{sed} probably needs to be rewritten completely just to make it
170 cleaner.
171
172 @item
173 Work on the partially-implemented C interpreter project.
174
175 @item
176 Help with the development of GNUStep, a GNU implementation of the
177 OpenStep specification.
178
179 @item
180 Add features to GNU Make to record the precise rule with which each file
181 was last recompiled; then recompile any file if its rule in the makefile
182 has changed.
183
184 @item
185 Add a few features to GNU @code{diff}, such as handling large input
186 files without reading entire files into core.
187
188 @item
189 An @code{nroff} macro package to simplify @code{texi2roff}.
190
191 @item
192 A queueing system for the mailer Smail that groups pending work by
193 destination rather than by original message. This makes it possible
194 to schedule retries coherently for each destination. Talk to
195 @code{tron@@veritas.com} about this.
196
197 Smail also needs a new chief maintainer.
198
199 @item
200 Enhanced cross-reference browsing tools. (We now have something at
201 about the level of @code{cxref}.) We also could use something like
202 @code{ctrace}. (Some people are now working on this project.)
203 @end itemize
204
205 @node X Windows Projects
206 @chapter X Windows Projects
207
208 @itemize @bullet
209 @item
210 An emulator for Macintosh graphics calls on top of X Windows.
211
212 @item
213 A music playing and editing system.
214
215 @item
216 A "disk jockey" program to keep track of a collection of recorded music
217 samples (songs, etc), and queue up a sequence of them for playing. This
218 program could use rplay to do the actual playing.
219
220 @item
221 A program to edit dance notation (such as labanotation) and display
222 dancers moving on the screen.
223
224 @item
225 Port the Vibrant toolkit to work on X without using Motif.
226
227 @item
228 A widget for displaying circle-shaped menus ("pie menus") with X
229 windows.
230
231 @item
232 A program to display and edit Hypercard stacks.
233
234 @item
235 An interface-builder program to make it easy to design graphical
236 interfaces for applications. This could work with the dynamic linker
237 DLD and C++, loading in the same class definitions that will be used
238 by the application program.
239
240 @item
241 A "desktop" program with drag-and-drop icons and such.
242
243 @item
244 A paint program, supporting both bitmap-oriented operations and
245 component-oriented operations. @code{xpaint} exists, but isn't very
246 usable.
247
248 @item
249 A program for manipulating photographs---something vaguely like Photo
250 Shop (though not exactly like it).
251 @end itemize
252
253 @node Other Projects
254 @chapter Other Projects
255
256 If you think of others that should be added, please
257 send them to @code{gnu@@prep.ai.mit.edu}.
258
259 @itemize @bullet
260 @item
261 [This seems to be being done:]
262 A program to convert Postscript to plain ASCII text. Ghostscript will
263 soon have a mode to output all the text strings in a document, each with
264 its coordinates. You could write a program to start with this output
265 and ``layout the page'' in ASCII. The program will be both easier and
266 more useful if you don't worry pedantically about how the output text
267 should be formatted. Instead, try to make it look reasonable as plain
268 ASCII.
269
270 @item
271 A program to convert compiled programs represented in OSF ANDF
272 (``Architecture Neutral Distribution Format'') into ANSI C.
273
274 @item
275 An imitation of Page Maker or Ventura Publisher.
276
277 @item
278 An imitation of @code{dbase2} or @code{dbase3} (How dbased!)
279
280 @item
281 A program to reformat Fortran programs in a way that is pretty.
282
283 @item
284 A bulletin board system. There are a few free ones, but they don't have
285 all the features that people want in such systems. It would make sense
286 to start with an existing one and add the other features.
287
288 @item
289 A general ledger program.
290
291 @item
292 A program to typeset C code for printing.
293 For ideas on what to do, see the forthcoming book,
294
295 @display
296 Human Factors and Typography for More Readable Programs,
297 Ronald M. Baecker and Aaron Marcus,
298 Addison-Wesley, ISBN 0-201-10745-7
299 @end display
300
301 (I don't quite agree with a few of the details they propose.)
302
303 @item
304 Speech-generation programs (there is a program from Brown U that you
305 could improve).
306
307 @item
308 Speech-recognition programs (single-speaker, disconnected speech).
309
310 @item
311 Scientific mathematical subroutines, including clones of SPSS.
312
313 @item
314 Statistical tools.
315
316 @item
317 Software to replace card catalogues in libraries.
318
319 @item
320 Grammar and style checking programs.
321
322 @item
323 An implementation of the S language (an interpreted languages used for
324 statistics).
325
326 @item
327 A translator from Scheme to C.
328
329 @item
330 Optical character recognition programs; especially if suitable for
331 scanning documents with multiple fonts and capturing font info as well
332 as character codes. This may not be very difficult if you let it
333 @emph{train} on part of the individual document to be scanned, so as to
334 learn what fonts are in use in that document. We would particularly
335 like to scan the Century Dictionary, an unabridged dictionary now in the
336 public domain.
337
338 You don't need scanning hardware to work on OCR. We can send you
339 bitmaps you can use as test data.
340
341 We may soon have an OCR program, but it will need lots of additional work.
342
343 @item
344 A program to scan a line drawing and convert it to Postscript.
345
346 @item
347 A program to recognize handwriting.
348
349 @item
350 A pen based interface.
351
352 @item
353 Software suitable for creating virtual reality user interfaces.
354
355 @item
356 CAD software, such as a vague imitation of Autocad.
357
358 @item
359 Software for displaying molecules.
360
361 @item
362 Software for comparing DNA sequences, and finding matches and
363 alignments.
364 @end itemize
365
366 @node Compilers
367 @chapter Compilers for Other Batch Languages
368
369 Volunteers are needed to write parsers/front ends for languages such as
370 Algol 60, Algol 68, PL/I, or whatever, to be used with the code
371 generation phases of the GNU C compiler. (C++ and Objective C are done,
372 Fortran is now in beta test, and Ada and Pascal are being worked on.
373
374 @c Fortran status is here so gnu@prep and the volunteer coordinators
375 @c don't have to answer the question -len
376 You can get the status of the Fortran front end with this command:
377
378 @example
379 finger -l fortran@@gnu.ai.mit.edu
380 @end example
381
382 @node Games and Recreations
383 @chapter Games and Recreations
384
385 @itemize @bullet
386 @item
387 Video-oriented games should work with the X window system.
388
389 @item
390 Empire (there is a free version but it needs upgrading)
391
392 @item
393 An ``empire builder'' system that makes it easy to write various kinds of
394 simulation games.
395
396 @item
397 Imitations of popular video games:
398
399 @itemize -
400 @item
401 Space war, Asteroids, Pong, Columns.
402 @item
403 Defending cities from missiles.
404 @item
405 Plane shoots at lots of other planes, tanks, etc.
406 @item
407 Wizard fights fanciful monster.
408 @item
409 A golf game.
410 @item
411 Program a robot by sticking building blocks together,
412 then watch it explore a world.
413 @item
414 Biomorph evolution (as in Scientific American).
415 @item
416 A program to display effects of moving at relativistic speeds.
417 @end itemize
418
419 @item
420 Intriguing screen-saver programs to make interesting pictures.
421 Other such programs that are simply entertaining to watch.
422 For example, an aquarium.
423 @end itemize
424
425 We do not need @code{rogue}, as we have @code{hack}.
426
427 @contents
428
429 @bye