Merge from trunk.
[bpt/emacs.git] / doc / lispintro / ChangeLog
1 2012-11-24 Paul Eggert <eggert@cs.ucla.edu>
2
3 * doclicense.texi: Update to latest version from FSF.
4 These are just minor editorial changes.
5
6 2012-10-24 Paul Eggert <eggert@penguin.cs.ucla.edu>
7
8 * emacs-lisp-intro.texi (Files List):
9 Update manual for new time stamp format (Bug#12706).
10
11 2012-10-17 Gregor Zattler <grfz@gmx.de> (tiny change)
12
13 * emacs-lisp-intro.texi (Narrowing advantages):
14 Minor update for changed what-line implementation. (Bug#12629)
15
16 2012-06-21 Glenn Morris <rgm@gnu.org>
17
18 * Makefile.in: Rename infodir to buildinfodir throughout. (Bug#11737)
19
20 2012-05-29 Glenn Morris <rgm@gnu.org>
21
22 * emacs-lisp-intro.texi: Nuke hand-written node pointers.
23 (dolist, dotimes): Fix sectioning.
24
25 2012-05-12 Glenn Morris <rgm@gnu.org>
26
27 * Makefile.in (MKDIR_P): New, set by configure.
28 (mkinfodir): Use $MKDIR_P.
29
30 2012-05-05 Glenn Morris <rgm@gnu.org>
31
32 * emacs-lisp-intro.texi (Making Errors): Don't mention Emacs 20.
33 (Void Function, Wrong Type of Argument, Recursion with list)
34 (Simple Extension): Assume a non-ancient Emacs.
35 (Void Variable, Switching Buffers): Improve page breaks.
36
37 * emacs-lisp-intro.texi: Update GNU Press contact details.
38
39 2012-05-04 Glenn Morris <rgm@gnu.org>
40
41 * Makefile.in (INFO_EXT, INFO_OPTS): New, set by configure.
42 (info, infoclean): Use $INFO_EXT.
43 (${infodir}/eintr$(INFO_EXT)): Use $INFO_EXT and $INFO_OPT.
44 * makefile.w32-in (INFO_EXT, INFO_OPTS): New.
45 (INFO_TARGETS, clean): Use $INFO_EXT.
46 ($(infodir)/eintr$(INFO_EXT)): Use $INFO_EXT and $INFO_OPT.
47
48 2012-05-02 Glenn Morris <rgm@gnu.org>
49
50 * emacs-lisp-intro.texi (Syntax): Reword to avoid underfull hbox.
51
52 2012-04-14 Glenn Morris <rgm@gnu.org>
53
54 * Makefile.in: Replace non-portable use of $< in ordinary rules.
55
56 2012-02-28 Glenn Morris <rgm@gnu.org>
57
58 * emacs-lisp-intro.texi: Standardize possessive apostrophe usage.
59
60 2012-02-17 Glenn Morris <rgm@gnu.org>
61
62 * emacs-lisp-intro.texi (Design @value{COUNT-WORDS}, Syntax)
63 (count-words-in-defun): Fix cross-refs to Emacs manual.
64
65 2012-01-28 Andreas Schwab <schwab@linux-m68k.org>
66
67 * emacs-lisp-intro.texi (Top): Move setting of COUNT-WORDS outside
68 of @menu. (Bug#10628)
69
70 2012-01-19 Juanma Barranquero <lekktu@gmail.com>
71
72 * emacs-lisp-intro.texi (count-words-in-defun):
73 Add missing parenthesis (bug#10544).
74
75 2012-01-17 Glenn Morris <rgm@gnu.org>
76
77 * emacs-lisp-intro.texi (re-search-forward): Fix typo.
78
79 2011-11-24 Juanma Barranquero <lekktu@gmail.com>
80
81 * makefile.w32-in: Update dependencies.
82
83 2011-11-16 Juanma Barranquero <lekktu@gmail.com>
84
85 * emacs-lisp-intro.texi (etags): Fix typo.
86
87 2011-03-07 Chong Yidong <cyd@stupidchicken.com>
88
89 * Version 23.3 released.
90
91 2011-02-19 Eli Zaretskii <eliz@gnu.org>
92
93 * emacs-lisp-intro.texi: Sync @dircategory with ../../info/dir.
94
95 2011-01-23 Werner Lemberg <wl@gnu.org>
96
97 * Makefile.in (MAKEINFO): Now controlled by `configure'.
98 (MAKEINFO_OPTS): New variable. Use it where appropriate.
99 (ENVADD): New variable to control texi2dvi and texi2pdf.
100
101 2010-11-13 Glenn Morris <rgm@gnu.org>
102
103 * emacs-lisp-intro.texi: Rename the `count-words-region' example,
104 since there is now a standard command of that name.
105
106 2010-10-11 Glenn Morris <rgm@gnu.org>
107
108 * Makefile.in (.dvi.ps): Remove unnecessary suffix rule.
109 (.PHONY): Add ps.
110 (ps, emacs-lisp-intro.ps): New targets.
111 (clean): Delete ps file.
112 (MAKEINFO): Use --force like the other doc/ Makefiles do.
113 Add explicit -I$srcdir.
114
115 2010-10-09 Glenn Morris <rgm@gnu.org>
116
117 * Makefile.in (VPATH): Remove.
118 (infodir): Make it absolute.
119 (mkinfodir, $(infodir)/eintr, infoclean): No need to cd $srcdir.
120
121 * Makefile.in (dist): Anchor regexps.
122
123 * Makefile.in (${infodir}/eintr, emacs-lisp-intro.dvi)
124 (emacs-lisp-intro.pdf, emacs-lisp-intro.html): Use $<.
125
126 * Makefile.in (infoclean): Remove harmless, long-standing error.
127
128 * Makefile.in ($(infodir)): Delete rule.
129 (mkinfodir): New.
130 ($(infodir)/eintr): Use $mkinfodir instead of infodir.
131
132 2010-10-09 Glenn Morris <rgm@gnu.org>
133
134 * Makefile.in (.PHONY): Declare info, dvi, html, pdf, dist.
135
136 2010-10-07 Glenn Morris <rgm@gnu.org>
137
138 * Makefile.in (version): New, set by configure.
139 (clean): Delete dist tar file.
140 (dist): Use version in tar name.
141
142 2010-10-06 Glenn Morris <rgm@gnu.org>
143
144 * Makefile.in (SHELL): Use /bin/sh, like every other Makefile.in.
145 (INFO_SOURCES, INFO_TARGETS, DVI_TARGETS): Remove variables.
146 ($(infodir), html, pdf, infoclean, dist): New rules.
147 (${infodir}/eintr): Ensure $infodir exists. Use $@.
148 (emacs-lisp-intro.dvi, emacs-lisp-intro.pdf, emacs-lisp-intro.html):
149 Use $^.
150 (.PHONY): Declare clean rules.
151 (mostlyclean): Delete more temp files.
152 (clean): Delete specific dvi, pdf and html files.
153 (maintainer-clean): Use infoclean.
154 (.NOEXPORT): Remove, unused by any other Makefile.in.
155
156 2010-09-21 Glenn Morris <rgm@gnu.org>
157
158 * cons-1.eps, cons-2.eps, cons-2a.eps, cons-3.eps, cons-4.eps:
159 * cons-5.eps, lambda-1.eps, lambda-2.eps, lambda-3.eps:
160 Add first line EPSF magic comment. (Bug#7064)
161
162 2010-06-23 Glenn Morris <rgm@gnu.org>
163
164 * emacs-lisp-intro.texi: Untabify.
165
166 2010-05-07 Chong Yidong <cyd@stupidchicken.com>
167
168 * Version 23.2 released.
169
170 2010-03-10 Chong Yidong <cyd@stupidchicken.com>
171
172 * Branch for 23.2.
173
174 2010-02-16 Glenn Morris <rgm@gnu.org>
175
176 * emacs-lisp-intro.texi: Fix typo in name of `find-tag' command.
177
178 2010-02-01 Stefan Monnier <monnier@iro.umontreal.ca>
179
180 * emacs-lisp-intro.texi (Text and Auto-fill, Mode Line):
181 Avoid obsolete special default variables like default-major-mode.
182
183 2009-12-09 David Robinow <drobinow@gmail.com> (tiny change)
184
185 * makefile.w32-in: Use parenthesis for macros for nmake compatibility.
186
187 2009-12-03 Glenn Morris <rgm@gnu.org>
188
189 * emacs-lisp-intro.texi (Free Software and Free Manuals):
190 Update URL, and remove duplicate text.
191
192 2009-10-28 Robert J. Chassell <bob@gnu.org>
193
194 * emacs-lisp-intro.texi: Don't change urlcolor or linkcolor in tex
195 output (not needed and does not work with recent texinfo.tex).
196 Bump edition number.
197
198 2009-10-27 Robert J. Chassell <bob@gnu.org>
199
200 * emacs-lisp-intro.texi: Bump edition number.
201
202 2009-10-27 Glenn Morris <rgm@gnu.org>
203
204 * cons-1.pdf, cons-2.pdf, cons-2a.pdf, cons-3.pdf, cons-4.pdf:
205 * cons-5.pdf, drawers.pdf, lambda-1.pdf, lambda-2.pdf, lambda-3.pdf:
206 New files, generated from .eps versions with epstopdf.
207 * README: Add copyright information for PDF images.
208
209 * Makefile.in (TEXI2PDF): New variable.
210 (emacs-lisp-intro.pdf): New target.
211
212 * makefile.w32-in (texinfodir, TEXI2PDF): New variables.
213 (ENVADD): Add -I$texinfodir.
214 (emacs-lisp-intro.pdf): New target.
215
216 2009-07-28 Chong Yidong <cyd@stupidchicken.com>
217
218 * emacs-lisp-intro.texi (Simple Extension): Bump emacs versions in
219 examples.
220
221 2009-07-10 Glenn Morris <rgm@gnu.org>
222
223 * emacs-lisp-intro.texi (Top): Add missing @detailmenu entry.
224
225 2009-07-09 Glenn Morris <rgm@gnu.org>
226
227 * Makefile.in (texinfodir): Rename from usermanualdir, and update.
228
229 2009-07-06 Glenn Morris <rgm@gnu.org>
230
231 * emacs-lisp-intro.texi (defvar and asterisk): Minor rephrasing.
232
233 2009-06-21 Chong Yidong <cyd@stupidchicken.com>
234
235 * Branch for 23.1.
236
237 2009-06-14 Chong Yidong <cyd@stupidchicken.com>
238
239 * emacs-lisp-intro.texi (edebug): Fix typo.
240
241 2009-02-22 Karl Berry <karl@gnu.org>
242
243 * emacs-lisp-intro.texi (Default Configuration): Fix dup word "by by".
244
245 2009-02-20 Juanma Barranquero <lekktu@gmail.com>
246
247 * emacs-lisp-intro.texi (current-kill, Code for current-kill)
248 (Body of current-kill): Remove duplicate words.
249
250 2008-11-19 Glenn Morris <rgm@gnu.org>
251
252 * doclicense.texi: New file.
253 * emacs-lisp-intro.texi: Relicense under FDL 1.3 or later.
254 Include doclicense.texi rather than having license in the file itself.
255
256 2008-10-16 Sean Sieger <sean.sieger@gmail.com> (tiny change)
257
258 * emacs-lisp-intro.texi (Recursion with list): Fix typo.
259
260 2008-10-04 Karl Berry <karl@gnu.org>
261
262 * emacs-lisp-intro.texi: Apply similar formatting changes as for
263 the emacs and lispref manuals, to save pages. A couple minor
264 rewordings and reformatting of code to avoid overfull and
265 underfull lines.
266 (edition-number): Bump to 3.08.
267 (update-date): Bump to 4 October 2008.
268
269 2008-06-20 Eli Zaretskii <eliz@gnu.org>
270
271 * makefile.w32-in (distclean): Remove makefile.
272
273 2008-06-16 Glenn Morris <rgm@gnu.org>
274
275 * Makefile.am, Makefile.old, aclocal.m4, configure, configure.in:
276 * install-sh, missing, mkinstalldirs: Remove obsolete files.
277
278 2008-05-13 Chong Yidong <cyd@stupidchicken.com>
279
280 * emacs-lisp-intro.texi (Lisp Atoms): Rephrase "in addition" to
281 avoid confusion with addition operation discussed in previous
282 paragraph.
283
284 2008-01-31 Robert J. Chassell <bob@rattlesnake.com>
285
286 * emacs-lisp-intro.texi: Update back cover text.
287
288 2007-09-12 Robert J. Chassell <bob@rattlesnake.com>
289
290 * emacs-lisp-intro.texi: Add email address to Thank You correctly.
291
292 2007-09-06 Romain Francoise <romain@orebokech.com>
293
294 * Makefile.in (maintainer-clean): Delete info files.
295
296 2007-09-06 Glenn Morris <rgm@gnu.org>
297
298 Move from lispintro/ to doc/lispintro/.
299 * Makefile.in (infodir): Go up one more level.
300 (usermanualdir): Change from ../man to ../emacs.
301 * makefile.w32-in (infodir, ENVADD): Go up one more level.
302 * emacs-lisp-intro.texi (setfilename): Go up one more level.
303
304 2007-07-30 Robert J. Chassell <bob@rattlesnake.com>
305
306 * emacs-lisp-intro.texi: Fix typo on line 5173, change `thee' to
307 `these'.
308
309 2007-07-25 Glenn Morris <rgm@gnu.org>
310
311 * Relicense all FSF files to GPLv3 or later.
312
313 2007-06-02 Chong Yidong <cyd@stupidchicken.com>
314
315 * Version 22.1 released.
316
317 2007-01-30 Robert J. Chassell <bob@rattlesnake.com>
318
319 * emacs-lisp-intro.texi (else): Rephrase message of first
320 if-then-else example so it is right both in itself and in the
321 "true" case of the expression, which asks whether 4 is greater
322 than 5.
323
324 2006-11-27 Andreas Schwab <schwab@suse.de>
325
326 * Makefile.in (usermanualdir): Define.
327 (emacs-lisp-intro.dvi): Pass -I options to texi2dvi instead of
328 using TEXINPUTS.
329
330 * emacs-lisp-intro.texi: Input texinfo instead of ../man/texinfo
331 to fix building outside source directory.
332
333 2006-11-09 Robert J. Chassell <bob@rattlesnake.com>
334
335 * emacs-lisp-intro.texi: Copy descriptions from detailed master
336 menu to menus within body.
337
338 * emacs-lisp-intro.texi (at the beginning): Add `other shell
339 commands' to produce additional output formats; total is now ten.
340 (A Loop with an Incrementing Counter, and others): Ensure Info
341 menus will appear in short windows.
342 (Disentangle beginning-of-buffer): Replace `version 21' with `more
343 recent versions'.
344 (Simple Extension): Show how to handle multiple versions by adding
345 an alternative with a test of `>= 21'.
346
347 2006-11-06 Robert J. Chassell <bob@rattlesnake.com>
348
349 * emacs-lisp-intro.texi: Finish minor changes seen from DVI output.
350 Replace 22.1.100 with 22.1.1.
351 (current-kill): Mention functions that directly or indirectly call
352 `kill-new', which sets `kill-ring-yank-pointer'.
353 (Understanding current-kill): Change `lasted' to `last'. Remove
354 extraneous parenthesis. Reword item about returning `car' of list.
355 (yank): Remove mention of `rotate-yank-pointer'.
356 (Y Axis Element): Add comment regarding replacement of blank space.
357 (print-Y-axis Penultimate): Explain that `print-graph' will pass
358 `height-of-top-line' so `print-Y-axis' does not have a bug.
359
360 2006-11-05 Robert J. Chassell <bob@rattlesnake.com>
361
362 * emacs-lisp-intro.texi: Yet more minor changes:
363 (defcustom): Said that `:options' is usually for a hook. Remove
364 extraneous space in parenthetical remark concerning
365 `text-mode-hook-identify'. At end, mention other defines, too.
366 (Beginning a .emacs File): Reverse words about comments so they
367 parallel numbers of listed semi-colons.
368 (Text and Auto-fill): Remove extraneous blank line in example.
369 (Mail Aliases): Remove extraneous blank line in example.
370 (Keybindings): Reformat as needed with `key' rather than `kbd'.
371 (Keybindings, Miscellaneous, Mode Line): For small book format, start
372 section name on top of new page.
373 (Simple Extension): Replace longer expression with
374 `emacs-major-version'. Remove comment about `number-to-string'
375 function.
376 (Miscellaneous): Add filename option, `-H', to `grep' example.
377 (debug, debug-on-entry): Replace `GNU Emacs 22' with `a recent
378 GNU Emacs'.
379 (edebug): More properly state where to place point for 'M-x
380 edebug-defun'.
381
382 * emacs-lisp-intro.texi: More minor changes.
383 Center images for TeX output.
384 (kill-new function): Remove indentation for sentence talking about
385 momentarily skipping code.
386 (cons & search-fwd Review): Document @code{funcall}. Document
387 @code{re-search-forward} with existing @code{search-forward}.
388 Reference chapter on regular expression searches.
389 (Recursion with list): Specify a more recent version as being Emacs.
390 (Recursion with list, Every, recursive-graph-body-print): Change
391 `if ... progn' expression to `when'.
392 (Recursive triangle function): For printing in small book, ensure
393 section name is not last on bottom of preceding page.
394 (Keep): Remove extraneous space in function definition example.
395 (sentence-end): Specify `in English' for glyphs that end a sentence.
396 Note that in GNU Emacs 22, the name refers to both a variable and a
397 function.
398 (fwd-sentence while loops): Write a function as one, not as a form.
399 (fwd-para let): Add `which' to sentence with `parstart' and `parsep'.
400 (etags): Move sentences involving `find-tag' and sources. State
401 location of Emacs `src' directory.
402 (Design count-words-region): Better explain two backslashes in a row.
403 (Find a File): Fix grammar; add a `to' and write `to visit'. Change
404 `named' to `selected'.
405 (lengths-list-file): Remove extraneous parenthesis from reference.
406 (lengths-list-many-files): Explain `expand-file-name' better.
407 (Files List): Rephrase sentence regarding Lisp sources directory.
408
409 2006-11-04 Robert J. Chassell <bob@rattlesnake.com>
410
411 * emacs-lisp-intro.texi: Replace 22.0.100 with 22.1.100.
412 (defcustom): Note that the value set by defconst is a variable.
413 (Buffer Size & Locations): Parenthetical remark about evaluation.
414 (Finding More): Change text to include C sources by inference.
415
416 * emacs-lisp-intro.texi: Minor fixes.
417 Replace all tabs with eight spaces each so printed text looks correct.
418 Remove extraneous comma in a printed node name produced by `ref'.
419 (insert-buffer): Add a missing beginning parenthesis.
420 (beginning-of-buffer): Add `beginning of' to note about accessible
421 portion.
422 (narrow Exercise): Write closing parenthesis at end of correct
423 paragraph.
424 (zap-to-char): Remove extraneous `a' from first sentence.
425 (Complete zap-to-char): Remove two extraneous sentences.
426 (zap-to-char body): Move sentences on documentation two nodes earlier.
427 (Lisp macro): Add definition of `unless' macro.
428 (last-command & this-command): Remove comment that `we have not yet
429 seen' the @code{eq} function.
430 (kill-append function): Reformat `kill-append' function definition so
431 it prints well.
432 (kill-new function): Indent the sentence beginning `notice'. Replace
433 `the same as' with `similar to'. Repair typo. Remove obsolete
434 references to `yank' and `yank-pop. End section with a note that `we
435 will digress into C.'
436
437 2006-11-02 Robert J. Chassell <bob@rattlesnake.com>
438
439 * emacs-lisp-intro.texi (kill-ring-yank-pointer): Revert addition
440 of extraneous quotation mark to rotate-yank-pointer.
441
442 2006-11-01 Juri Linkov <juri@jurta.org>
443
444 * emacs-lisp-intro.texi: Fix unbalanced quotes.
445
446 2006-10-31 Robert J. Chassell <bob@rattlesnake.com>
447
448 * emacs-lisp-intro.texi: Revised text for kill-region,
449 copy-region-as-kill, kill-append, kill-new, forward-sentence,
450 forward-paragraph, find-file, current-kill, yank, and yank-pop.
451 Removed INSTALL MANIFEST from the directory since those files are
452 now irrelevant. Updated Info file in ../info. Changed numbering
453 so is now Revised Third Edition and this instance's edition-number
454 is 3.00. Did not update ISBN number.
455
456 * emacs-lisp-intro.texi: Remove version reference for X colors.
457 Document `='. Remove mention that :eval was new in 21. Updated
458 instance's edition-number to 3.01.
459
460 2006-10-30 Robert J. Chassell <bob@rattlesnake.com>
461
462 * emacs-lisp-intro.texi: Many changes since it turned out that
463 many `simple' functions were rewritten. Changes to the text
464 regarding zap-to-char, mark-whole-buffer, append-to-buffer,
465 copy-to-buffer, beginning-of-buffer, what-line, and possibly
466 others. (I have not reviewed all yet.) This instance does build
467 for Info and TeX.
468
469 2006-10-29 Chong Yidong <cyd@stupidchicken.com>
470
471 * Makefile.in: Use relative paths to avoid advertising filesystem
472 contents during compilation.
473
474 2006-08-21 Robert J. Chassell <bob@rattlesnake.com>
475
476 * emacs-lisp-intro.texi: Deleted in directory copy of texinfo.tex
477 and pointed towards ../man/texinfo.tex so only one file
478 needs updating. Added comment of what to do when building on own.
479
480 * texinfo.tex: Changed to version 2006-02-13.16
481 to enable a DVI build using the more recent versions of TeX.
482
483 2006-05-25 David Kastrup <dak@gnu.org>
484
485 * emacs-lisp-intro.texi (setcar): Replace an antelope rather than
486 a giraffe with a hippopotamus.
487
488 2006-05-19 Thien-Thi Nguyen <ttn@gnu.org>
489
490 * emacs-lisp-intro.texi (Digression concerning error): Fix typo.
491
492 2005-09-16 Romain Francoise <romain@orebokech.com>
493
494 * emacs-lisp-intro.texi (GNU Free Documentation License):
495 Specify GFDL version 1.2.
496
497 2005-07-30 Eli Zaretskii <eliz@gnu.org>
498
499 * makefile.w32-in (info): Don't run install-info.
500 ($(infodir)/dir): New target, produced by running install-info.
501
502 2005-07-04 Lute Kamstra <lute@gnu.org>
503
504 Update FSF's address in GPL notices.
505
506 * emacs-lisp-intro.texi: Update FSF's address.
507
508 2004-04-23 Juanma Barranquero <lektu@terra.es>
509
510 * makefile.w32-in: Add "-*- makefile -*-" mode tag.
511
512 2004-02-29 Juanma Barranquero <lektu@terra.es>
513
514 * makefile.w32-in (mostlyclean, clean, maintainer-clean):
515 Use $(DEL) instead of rm, and ignore exit code.
516
517 2003-11-16 Kevin Ryde <user42@zip.com.au>
518
519 * emacs-lisp-intro.texi: [CVS commitment by <bob@rattlesnake.com>]
520 Corrections to cross references.
521 (Interactive Options): elisp "interactive" -> "Using Interactive".
522 (defvar and asterisk): Remove emacs "Edit Options" reference,
523 edit-options is no longer described in the emacs manual.
524 (Lists diagrammed): elisp "List Type" -> "Cons Cell Type".
525
526 2003-09-03 Peter Runestig <peter@runestig.com>
527
528 * makefile.w32-in: New file.
529
530 2001-11-29 Eli Zaretskii <eliz@is.elta.co.il>
531
532 * emacs-lisp-intro.texi (Index): @ignore extraneous text.
533 Use @dircategory and @direntry to define the DIR entry.
534
535 2001-11-25 Robert J. Chassell <bob@rattlesnake.com>
536
537 * emacs-lisp-intro.texi: Move @contents to the beginning of the
538 file. Set the size to @smallbook.
539
540 2001-11-24 Eli Zaretskii <eliz@is.elta.co.il>
541
542 * Makefile.in: New file.
543
544 * README: Update.
545
546 * *.eps: Rename to avoid clashes in DOS 8+3 namespace.
547
548 ;; Local Variables:
549 ;; coding: utf-8
550 ;; End:
551
552 Copyright (C) 2001-2012 Free Software Foundation, Inc.
553
554 This file is part of GNU Emacs.
555
556 GNU Emacs is free software: you can redistribute it and/or modify
557 it under the terms of the GNU General Public License as published by
558 the Free Software Foundation, either version 3 of the License, or
559 (at your option) any later version.
560
561 GNU Emacs is distributed in the hope that it will be useful,
562 but WITHOUT ANY WARRANTY; without even the implied warranty of
563 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
564 GNU General Public License for more details.
565
566 You should have received a copy of the GNU General Public License
567 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.