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Author SHA1 Message Date
Eli Zaretskii
1cc90d21d6 Minor fixes for the last commits
* src/fns.c (Fbase64url_encode_region)
(Fbase64url_encode_string, Fbase64_decode_region)
(Fbase64_decode_string): Fix doc strings.
(base64_decode_1): Minor stylistic code changes.

* doc/lispref/text.texi (Base 64): Fix typos and improve
wording of the last committed text.
2019-06-08 11:14:31 +03:00
Pierre Téchoueyres
7541b06872 Add support for base64url variant of base-64 encoding/decoding
Implement the RFC4648 variant of base64 encoding used by URLs.
* doc/lispref/text.texi (base64url-encode-region,
base64url-encode-string): Document new functions.
(base64-decode-region, base64-decode-string): Document new optional
parameter 'base64url' used to use url variant when decoding data.

* src/fns.c (base64url-encode-region, base64url-encode-region): New
functions to manage url variant.
(base64-decode-region, base64-decode-string): Add optional
parameter to indicate use of url-variant.
(base64_encode_region_1, base64_encode_string_1): Internal functions
with extracted code from 'base64_encode_region' and
'base64_encode_string' and optional parameters to manage padding and
url variant.
(base64-encode-region, base64-encode-string) : Use
base64_encode_region_1 and base64_encode_string_1.
(base64-encode-1): Add parameters to manage padding and url variant.
(base64-decode-1): Add parameter to manage url variant.

* test/src/fns-tests.el (fns-tests--with-region): New helper macro to
test region variant of base64 encode / decode functions.
(fns-tests--string-repeat): Helper function used in base64 tests.
(fns-tests-base64-encode-region, fns-tests-base64-encode-string):
Tests for standard base64 function.
(fns-test-base64url-encode-region,
fns-test-base64url-encode-string): Tests for url variant.
(fns-tests-base64-decode-string): Tests for decoding part.
2019-06-08 10:49:35 +03:00
YAMAMOTO Mitsuharu
faf10bd8eb Support X core font driver on cairo (Bug#28236)
* configure.ac (HAVE_X_WINDOWS): Add xfont.o to FONT_OBJ if HAVE_CAIRO.

* doc/lispref/frames.texi (Font and Color Parameters): Mention X core font
driver with Cairo drawing.

* src/font.c (syms_of_font) [HAVE_X_WINDOWS && USE_CAIRO]: Call syms_of_xfont.

* src/xfns.c (x_create_tip_frame) [USE_CAIRO]: Register xfont_driver.

* src/xterm.c (x_cr_gc_clip) [USE_CAIRO]: New function extracted from
x_begin_cr_clip.
(x_begin_cr_clip) [USE_CAIRO]: Use it.
(xlib_surface_key, saved_drawable_key) [USE_CAIRO]: New variables.
(x_cr_destroy_xlib_surface, x_try_cr_xlib_drawable)
(x_end_cr_xlib_drawable) [USE_CAIRO]: New functions.
(x_draw_composite_glyph_string_foreground)
(x_draw_glyph_string_foreground) [USE_CAIRO]: Get Xlib surface when drawing
text with X core fonts into bitmap surfaces.  Add fallback code for drawing
into outline surfaces.
2019-06-08 14:05:49 +09:00
Eli Zaretskii
77f96e2cc1 Merge branch 'master' of git.savannah.gnu.org:/srv/git/emacs 2019-06-07 22:06:01 +03:00
Eli Zaretskii
4ebfec02f0 Merge remote-tracking branch 'origin/harfbuzz' 2019-06-07 17:52:16 +03:00
Glenn Morris
348657cc21 Merge from origin/emacs-26
9254885 (origin/emacs-26) Resurrect display-line-number-mode in clien...
aecbbd5 * src/fns.c (Fmapconcat): Doc fix.  (Bug#35710)
8e5fc38 Fix typo
ee21b40 * lisp/term/w32-win.el ([noname]): Bind to 'ignore'.  (Bug#36...
f68b33f Fix styling of Unicode codepoints in manuals
ff7ec6f Fix a few uses of quotes in user manual
b67042b More minor copyedits in the Emacs manual
9734b5c Fix minor issues in the Emacs manual
c153250 Try to improve text on atomic windows in Elisp manual
fb314ba Don't recommend insert-before-markers in process filters
2019-06-07 07:50:49 -07:00
Alan Third
610fb73ab6 Add native image rotation and cropping
* lisp/image.el (image--get-imagemagick-and-warn): Only fallback to
ImageMagick if native transforms aren't available.
* src/dispextern.h (INIT_MATRIX, COPY_MATRIX, MULT_MATRICES): New
macros for matrix manipulation.
(HAVE_NATIVE_SCALING, HAVE_NATIVE_TRANSFORMS): Rename and change all
relevant locations.
* src/image.c (x_set_image_rotation):
(x_set_transform): New functions.
(x_set_image_size): Use transform matrix for resizing under X and NS.
(x_set_image_crop): New function.
(lookup_image): Use the new transform functions.
(Fimage_scaling_p, Fimage_transforms_p): Rename and update all
callers.
* src/nsimage.m (ns_load_image): Remove rotation code.
(ns_image_set_transform): New function.
([EmacsImage dealloc]): Release the saved transform.
([EmacsImage rotate:]): Remove unneeded method.
([EmacsImage setTransform:]): New method.
* src/nsterm.h (EmacsImage): Add transform property and update method
definitions.
* src/nsterm.m (ns_dumpglyphs_image): Use the transform to draw the
image correctly.
* src/xterm.c (x_composite_image): Use PictOpSrc as we don't care
about alpha values here.
* doc/lispref/display.texi (Image Descriptors): Add :rotation.
(ImageMagick Images): Remove :rotation.
2019-06-05 22:28:46 +01:00
Eli Zaretskii
f68b33f502 Fix styling of Unicode codepoints in manuals
* doc/lispref/nonascii.texi (Character Properties):
* doc/lispref/display.texi (Glyphless Chars)
(Bidirectional Display):
* doc/emacs/search.texi (Lax Search):
* doc/emacs/text.texi (Quotation Marks):
* doc/emacs/basic.texi (Inserting Text): Canonicalize the
style of "U+NNNN CHARACTER NAME".  (Bug#35885)
2019-06-05 19:52:00 +03:00
Paul Eggert
88d440181e Update lispref spellfile
* doc/lispref/spellfile: Omit words no longer in the manual.
How is this spellfile used?  Does anybody use it any more?
2019-06-04 08:34:16 -07:00
Paul Eggert
7f4558e3d9 Always allow at least double-precision bignums
Without this fix, Emacs can get into a tight loop reporting
a range error when calculating timestamps.
* doc/lispref/numbers.texi (Integer Basics):
* src/alloc.c (syms_of_alloc): Document this.
* src/bignum.c (make_bignum_bits): Always allow bignums
of at least twice the width of (u)intmax_t.
2019-06-04 08:34:15 -07:00
Noam Postavsky
f81b812d75 Let untarring (and hence package installation) go faster (Bug#35909)
* lisp/subr.el (progress-reporter-update)
(progress-reporter-force-update, progress-reporter-do-update): Accept
new optional argument, SUFFIX.
* doc/lispref/display.texi (Progress): Document it.
* etc/NEWS: Announce it.
* lisp/tar-mode.el (tar-untar-buffer): Use a progress reporter instead
of calling message.  Suppress message from write-region.  Let-bind
write-region-inhibit-fsync to t.
2019-06-03 20:18:19 -04:00
Martin Rudalics
c153250adb Try to improve text on atomic windows in Elisp manual
* doc/lispref/windows.texi (Deleting Windows): Mention how
'delete-window' and 'delete-other-windows' handle atomic
windows.  Minor rewrite.
(Quitting Windows): Mention how 'quit-restore-window' handles
atomic windows and that it tries to avoid raising an error.
(Atomic Windows): Tell how to dissolve atomic windows.
2019-06-03 10:36:00 +02:00
Noam Postavsky
fb314ba3ad Don't recommend insert-before-markers in process filters
See <https://lists.gnu.org/r/emacs-devel/2019-05/msg00062.html> and
Bug#35334.
* doc/lispref/processes.texi (Filter Functions): Go back to using
plain insert in the example filter.  Add note about updating window
point.
2019-06-01 17:48:43 -04:00
Glenn Morris
6028662649 Merge from origin/emacs-26
008b263 (origin/emacs-26, emacs-26) * lisp/gnus/gnus.el: Mark autoloa...
daf32f1 Speed up redisplay of HELLO
d8a6d82 Improve documentation of 'safe-local-variable' property

# Conflicts:
#	etc/HELLO
2019-06-01 12:04:43 -07:00
Glenn Morris
17a1dae4af Merge from origin/emacs-26
2168165 ; * doc/lispref/nonascii.texi (Explicit Encoding): Fix typo.
8f18d12 Improve documentation of decoding into a unibyte buffer
7681a57 Remove redundants "See" before @xref or @pxref (Bug#35793)
9bee762 ; * src/coding.c: Improve commentary.  (Bug#34765)
e61349c Fix customization type of recentf-max-saved-items

# Conflicts:
#	src/coding.c
2019-06-01 12:04:41 -07:00
Eli Zaretskii
d8a6d82c4d Improve documentation of 'safe-local-variable' property
* doc/lispref/variables.texi (File Local Variables): Document
how to define 'safe-local-variable' properties for built-in
variables.
2019-06-01 10:28:30 +03:00
Eli Zaretskii
fba3687db4 Add HarfBuzz font backend for MS-Windows
* src/w32uniscribe.c [HAVE_HARFBUZZ]: Include math.h and
hb.h.
(bswap_32): Define for GCC 4.3.0 and later; else include
<byteswap.h> from Gnulib.
(struct uniscribe_font_info): Extend for HarfBuzz; 'cache' is
now a 'void *' (all users changed).
[HAVE_HARFBUZZ]: Define typedefs for HarfBuzz functions to be
loaded dynamically from the HarfBuzz DLL.  Define macros to
call those functions via function pointers.
(uniscribe_open) [HAVE_HARFBUZZ]: Use the HarfBuzz font driver
if the type of the font entity is 'harfbuzz'.
(uniscribe_close) [HAVE_HARFBUZZ]: For fonts using the
HarfBuzz backend, call hb_font_destroy to free memory used for
the cached hb_font data.
(uniscribe_shape): Fix assignment of character codepoints to
glyphs from a single cluster.
(w32hb_list, w32hb_match, free_cb, w32hb_get_font_table)
(w32hb_get_font, w32hb_encode_char, w32hb_begin_font)
(w32uni_combining, w32uni_general, w32uni_mirroring)
(get_hb_unicode_funcs, w32hb_shape)
(w32hb_combining_capability, load_harfbuzz_funcs)
[HAVE_HARFBUZZ]: New functions.
(syms_of_w32uniscribe_for_pdumper) [HAVE_HARFBUZZ]: Load the
HarfBuzz DLL and register the HarfBuzz backend with its
functions.
* src/w32font.c (syms_of_w32font) <Qharfbuzz>: New DEFSYM.
* src/w32fns.c (Fx_create_frame, w32_create_tip_frame)
[HAVE_HARFBUZZ]: Register the harfbuzz font backend.
* src/lisp.h (get_unicode_property): Declare prototype.
* src/font.h (harfbuzz_font_driver) [HAVE_NTGUI]: Declare.
* src/chartab.c (get_unicode_property): New function, body
taken from get-unicode-property-internal.
(Fget_unicode_property_internal): Call get_unicode_property
after validating input.

* doc/lispref/frames.texi (Font and Color Parameters):
* doc/emacs/msdos.texi (Windows Fonts): Document support for
HarfBuzz text shaping on MS-Windows.

* configure.ac (HAVE_HARFBUZZ): Move out of the X-specific
part, and consider HarfBuzz also for HAVE_W32 systems.
Require HarfBuzz v1.2.3 for w32.
2019-05-31 11:30:36 +03:00
Stefan Monnier
fe0cb43fb8 * lisp/subr.el (add-hook): Turn append into depth (bug#35508)
Make it possible to control the relative ordering of functions on hooks by
specifying `depth` in the same was as was possible with `add-function`.

* lisp/electric.el (electric--sort-post-self-insertion-hook):
Delete function.
(electric-indent-mode, electric-layout-mode, electric-quote-mode):
* lisp/elec-pair.el (electric-pair-mode): Use new `depth` arg instead of
electric--sort-post-self-insertion-hook.

* lisp/emacs-lisp/syntax.el (syntax-propertize, syntax-ppss):
Use new `depth` arg to make sure noone accidentally gets added
after syntax-ppss-flush-cache.

* doc/lispref/modes.texi (Setting Hooks): Document new `depth` arg.

* test/lisp/subr-tests.el (subr-tests-add-hook-depth): New test.
2019-05-29 15:56:14 -04:00
Noam Postavsky
2168165ec0 ; * doc/lispref/nonascii.texi (Explicit Encoding): Fix typo. 2019-05-26 08:46:30 -04:00
Paul Eggert
8a89721457 Document ‘Maintainer: emacs-devel@gnu.org’
* doc/lispref/tips.texi (Library Headers): Document that the
Maintainer: line now says ‘emacs-devel@gnu.org’ rather than ‘FSF’.
2019-05-25 14:25:18 -07:00
Eli Zaretskii
8f18d12121 Improve documentation of decoding into a unibyte buffer
* doc/lispref/nonascii.texi (Explicit Encoding): Document what
happens when DESTINATION of decoding is a unibyte buffer.

* src/coding.c (Fdecode_coding_region)
(Fdecode_coding_string): Document what happens if DESTINATION
is a unibyte buffer.
2019-05-25 22:10:00 +03:00
Mauro Aranda
7681a57b88 Remove redundants "See" before @xref or @pxref (Bug#35793)
* doc/lispref/control.texi (Control Structures):
* doc/lispref/modes.texi (Search-based Fontification):
* doc/misc/cc-mode.texi (Filling and Line Breaking Commands)
(Auto-newline Insertion, Other Special Indentations):
* doc/misc/dbus.texi (Errors and Events):
* doc/misc/dired-x.texi (Find File At Point):
* doc/misc/eudc.texi (Display of Query Results, Inline Query Expansion):
* doc/misc/gnus-faq.texi (FAQ 3-11):
* doc/misc/gnus.texi (Group Parameters, Posting Styles)
(Spam Package Introduction):
* doc/misc/org.texi (LaTeX fragments, Previewing LaTeX fragments):
* doc/misc/reftex.texi (Commands):
Remove redundant "See" before cross references.
* doc/lispref/functions.texi (Function Safety): Redundant "see" is in
ignored text, but remove it anyway.
* doc/lispref/positions.texi (Skipping Characters): Remove redundant
"See" before cross references.  Change @xref to @pxref, which is
more suitable when at the end of a sentence.

Most of the redundants "See" found by Noam Postavsky.
2019-05-25 13:02:05 -04:00
Michael Heerdegen
84a3da15e9 Improve documentation of the 'function' special form
Point out that 'function' quoting is beneficial also for symbols.

* src/eval.c (function): Enhance docstring.
* doc/lispref/functions.texi (Anonymous Functions): Improve
documentation.
2019-05-24 00:51:46 +02:00
YAMAMOTO Mitsuharu
b40dde705a Merge branch 'master' into harfbuzz 2019-05-23 10:53:23 +09:00
Glenn Morris
5c21832ae8 Merge from origin/emacs-26
b0da915 (origin/emacs-26, emacs-26) Fix a typo in ELisp manual
400907b Add option to disable help completion autoloading (Bug#28607)
122ba16 Don't segfault on force-window-update of deleted window
015b12e Fix typo in ELisp manual
eadf044 Remove repeated function call in picture.el
1228a90 ; Fix mm-destroy-parts docstring typo
6cfd68d Fix Hideshow key binding typo in Emacs manual
2019-05-22 10:18:51 -07:00
Tom Levy
b0da9151d8 Fix a typo in ELisp manual
* doc/lispref/sequences.texi (Sequence Functions): Fix a typo.
(Bug#35817)

Copyright-paperwork-exempt: yes
2019-05-22 13:13:04 +03:00
Noam Postavsky
400907b3c1 Add option to disable help completion autoloading (Bug#28607)
* lisp/help-fns.el (help-enable-completion-auto-load): New option.
(help--symbol-completion-table): Consult it.
* doc/emacs/building.texi (Lisp Libraries): Document it.
* etc/NEWS: Announce it.
* doc/lispref/loading.texi (Autoload by Prefix): New section.
(Autoload): Reference it.
2019-05-21 07:37:22 -04:00
Mauro Aranda
015b12ebb8 Fix typo in ELisp manual
* doc/lispref/variables.texi (Directory Local Variables): Fix typo in
dir-locals-set-class-variables description.  (Bug#35799)
2019-05-20 14:22:58 -04:00
Mattias Engdegård
e9f9827eb0 Avoid polling in global-auto-revert-mode (bug#35418)
Make `auto-revert-avoid-polling' have effect in global-auto-revert-mode.
Buffers actually handled by that mode are marked with a non-nil value
of `auto-revert--global-mode'.  When global-auto-revert-mode is
entered, eligible buffers are marked in that way, and hooks are set up
to mark new buffers and take care of buffers whose file names change.
This way the existing poll-avoidance logic can be used, since the
entire set of buffers in auto-revert is known.

A new hook, `after-set-visited-file-name-hook', was added to handle
the case when the file name of a tracked buffer changes.

* lisp/autorevert.el (auto-revert-avoid-polling): Amend doc string.
(auto-revert--global-mode): New buffer-local variable.
(global-auto-revert-mode): Mark existing buffers and set up hooks when
mode is entered; do the opposite when exited.
(auto-revert--global-add-current-buffer)
(auto-revert--global-adopt-current-buffer)
(auto-revert--set-visited-file-name-advice): New functions.
(auto-revert--polled-buffers, auto-revert--need-polling-p)
(auto-revert-notify-handler)
(auto-revert-active-p): Modify logic to cover global-auto-revert-mode.
* lisp/files.el (after-set-visited-file-name-hook): New hook.
(set-visited-file-name-hook): Call new hook.
* test/lisp/autorevert-tests.el (top):  Use lexical-binding.
(auto-revert-test--write-file, auto-revert-test--buffer-string)
(auto-revert-test--wait-for, auto-revert-test--wait-for-buffer-text)
(auto-revert-test05-global-notify): New test.
* doc/lispref/hooks.texi (Standard Hooks):
Mention new hook (in a comment, since it's unclear whether it should
actually be documented here)
* etc/NEWS (Changes in Specialized Modes and Packages): Update entry.
2019-05-20 11:26:51 +02:00
Martin Rudalics
8783becbba New buffer display action function 'display-buffer-in-direction'
* lisp/window.el (windows-sharing-edge)
(window--try-to-split-window-in-direction)
(display-buffer-in-direction): New functions.
* doc/lispref/windows.texi (Buffer Display Action Functions):
Describe new action function 'display-buffer-in-direction'.
(Buffer Display Action Alists): Describe new entry 'direction'.
Amend description of 'window' entry.
* etc/NEWS: Mention 'display-buffer-in-direction' and 'direction'
and 'window' action alist entries.
2019-05-19 11:03:05 +02:00
Mattias Engdegård
26f735ff19 Add standard unmatchable regexp
Add `regexp-unmatchable' as a standard unmatchable regexp, defined as
"\\`a\\`".  Use it where such a regexp is needed, replacing slower
expressions in several places.
From a suggestion by Philippe Schnoebelen.

* lisp/subr.el (regexp-unmatchable): New defconst.
* etc/NEWS (Lisp Changes): Mention `regexp-unmatchable'.
* doc/lispref/searching.texi (Regexp Functions): Document it.
* lisp/emacs-lisp/regexp-opt.el (regexp-opt)
* lisp/progmodes/cc-defs.el (cc-conditional-require-after-load)
(c-make-keywords-re)
* lisp/progmodes/cc-engine.el (c-beginning-of-statement-1)
(c-forward-<>-arglist-recur, c-forward-decl-or-cast-1)
(c-looking-at-decl-block)
* lisp/progmodes/cc-fonts.el (c-doc-line-join-re)
(c-doc-bright-comment-start-re)
* lisp/progmodes/cc-langs.el (c-populate-syntax-table)
(c-assignment-op-regexp)
(c-block-comment-ender-regexp, c-font-lock-comment-end-skip)
(c-block-comment-start-regexp, c-line-comment-start-regexp)
(c-doc-comment-start-regexp, c-decl-start-colon-kwd-re)
(c-type-decl-prefix-key, c-type-decl-operator-prefix-key)
(c-pre-id-bracelist-key, c-enum-clause-introduction-re)
(c-nonlabel-token-2-key)
* lisp/progmodes/cc-mode.el (c-doc-fl-decl-start, c-doc-fl-decl-end)
* lisp/progmodes/cc-vars.el (c-noise-macro-with-parens-name-re)
(c-noise-macro-name-re, c-make-noise-macro-regexps)
* lisp/progmodes/octave.el (octave-help-mode)
* lisp/vc/vc-bzr.el (vc-bzr-log-view-mode, vc-bzr-revision-completion-table)
* lisp/vc/vc-git.el (vc-git-log-view-mode)
* lisp/vc/vc-hg.el (vc-hg-log-view-mode)
* lisp/vc/vc-mtn.el (vc-mtn-log-view-mode):
Use `regexp-unmatchable'.
* lisp/textmodes/ispell.el (ispell-non-empty-string):
Use `regexp-unmatchable', fixing a broken never-match regexp.
2019-05-15 18:55:27 +02:00
Glenn Morris
5fe9375a51 Merge from origin/emacs-26
02bee78 Let dir locals for more specific modes override those from less
b1235f9 Improve documentation of Hexl mode
32d1813 Fix description of (move-to-column <n> t) when column <n> is ...
0397b7c ; Fix smtpmail-stream-type docstring
7dab3ee Recognize single quote attribute values in nxml and sgml (Bug...
e4cde42 Disable extra display of &#10; in nxml-mode (Bug#32897)
ca14dd1 Fix nxml-get-inside (Bug#32003)
e7ab351 Fix positioning client buffer as instructed by emacsclient

# Conflicts:
#	lisp/files.el
#	lisp/textmodes/sgml-mode.el
2019-05-14 17:18:18 -07:00
YAMAMOTO Mitsuharu
5d7dafacf4 Document font backends for Cairo and/or HarfBuzz
* doc/lispref/frames.texi (Font and Color Parameters): Mention xfthb, ftcr,
and ftcrhb font backends.
2019-05-11 16:09:05 +09:00
Alan Mackenzie
32d181326a Fix description of (move-to-column <n> t) when column <n> is inside a tab
This fixes bug #35647.  State that when indent-tabs-mode is non-nil, spaces
are inserted before the tab rather than the tab being replaced by spaces.

* doc/lispref/text.texi (columns)
* src/indent.c (move-to-column): Make the above documentation amendment.
2019-05-09 16:27:03 +00:00
Glenn Morris
d9d914b292 Merge from origin/emacs-26
ec02c73 Update process filter example (Bug#35044)
2019-05-08 07:51:46 -07:00
Basil L. Contovounesios
c972da907d Clarify what constitutes an event (bug#35238)
* doc/lispref/commands.texi (Input Events): Specify that events are
non-nil and remove vestiges of bug#10190.
* doc/lispref/os.texi (Recording Input): Document optional argument
of recent-keys.
* lisp/subr.el (eventp): Check that the car of conses is non-nil.
* etc/NEWS: Announce it as an incompatible change.
* src/keyboard.c (Frecent_keys): Clarify that returned "events" are
not real events.
2019-05-07 18:00:20 +01:00
Noam Postavsky
ec02c736d6 Update process filter example (Bug#35044)
* doc/lispref/processes.texi (Filter Functions): Use
insert-before-markers in the "ordinary" filter example, like
internal-default-process-filter does.
2019-04-30 20:51:24 -04:00
Glenn Morris
7c7ee1dd52 Merge from origin/emacs-26
c26d452 (origin/emacs-26) * src/macfont.m (macfont_shape): Use conven...
140e7f8 Recommend using font-lock-face over face (Bug#35044)
7cb5364 Check if mouse_face_overlay was deleted (Bug#35273)

# Conflicts:
#	src/macfont.m
2019-04-29 09:12:53 -07:00
Glenn Morris
6662938619 Merge from origin/emacs-26
0e8d452 ; * doc/lispref/nonascii.texi (Coding System Basics): Fix gra...
25a2ff7 ; Add missing space in custom.texi
9ec18fb * admin/admin.el (set-version): Check for increase in version...
93912ba Be more careful about indent-sexp going over eol (Bug#35286)
2019-04-29 09:08:19 -07:00
Noam Postavsky
140e7f890f Recommend using font-lock-face over face (Bug#35044)
* doc/lispref/modes.texi (Precalculated Fontification): Explain
advantages of using font-lock-face over face.
2019-04-28 17:20:17 -04:00
Philipp Stephani
4d97e1a9ea Export major version of latest Emacs supported by emacs-module.h.
This is useful if module authors want to support multiple versions of
emacs-module.h.

* configure.ac (emacs_major_version): Define substitution.

* src/emacs-module.h.in (EMACS_MAJOR_VERSION): Define macro.

* doc/lispref/internals.texi (Module Initialization): Document
EMACS_MAJOR_VERSION preprocessor macro.

* test/data/emacs-module/mod-test.c (emacs_module_init): Verify
behavior of EMACS_MAJOR_VERSION.
2019-04-28 20:08:25 +02:00
Charles A. Roelli
0e8d452c1c ; * doc/lispref/nonascii.texi (Coding System Basics): Fix grammar. 2019-04-26 21:49:46 +02:00
Philipp Stephani
b6d8d34aed * doc/lispref/internals.texi (Module Values): Add a GMP example 2019-04-24 13:54:54 +02:00
Philipp Stephani
c4bacb1215 Clarify rounding mode when converting to struct timespec.
* doc/lispref/internals.texi (Module Values): Clarify that the
truncation is towards negative infinity.

* test/data/emacs-module/mod-test.c (Fmod_test_nanoseconds): Add test
function.
(emacs_module_init): Define it.

* test/src/emacs-module-tests.el (mod-test-nanoseconds): New unit test.
2019-04-24 13:41:05 +02:00
Philipp Stephani
e290a7d173 Add module functions to convert from and to big integers.
* src/module-env-27.h: Add new module functions to convert big
integers.

* src/emacs-module.h.in (emacs_mpz): Define if GMP is available.

* src/emacs-module.c (module_extract_big_integer)
(module_make_big_integer): New functions.
(initialize_environment): Use them.

* test/data/emacs-module/mod-test.c (Fmod_test_double): New test
function.
(emacs_module_init): Define it.

* test/src/emacs-module-tests.el (mod-test-double): New unit test.

* doc/lispref/internals.texi (Module Values): Document new functions.
2019-04-24 12:53:54 +02:00
Philipp Stephani
bffceab633 Add conversions to and from struct timespec to module interface.
Time values are a fundamental data type, and such conversions are hard
to implement within modules because of the various forms of time
values in Emacs Lisp.  Adding dedicated conversion functions can
significantly simplify module code dealing with times.

This approach uses nanosecond precision.  While Emacs in theory has
support for higher-precision time values, in practice most languages
and standards, such as POSIX, C, Java, and Go, have settled on
nanosecond-precision integers to represent time.

* src/emacs-module.h.in: Add header for struct timespec.

* src/module-env-27.h: Add module functions for time conversion.

* src/emacs-module.c (module_extract_time, module_make_time): New
functions.
(initialize_environment): Use them.

* test/data/emacs-module/mod-test.c (Fmod_test_add_nanosecond): New
test function.
(emacs_module_init): Define it.

* test/src/emacs-module-tests.el (mod-test-add-nanosecond/valid)
(mod-test-add-nanosecond/nil, mod-test-add-nanosecond/invalid): New
unit tests.

* doc/lispref/internals.texi (Module Values): Document time
conversion functions.
2019-04-24 11:33:52 +02:00
Michael Albinus
e8c07cae5f Remote processes cannot use a pipe process for stderr
* doc/lispref/processes.texi (Asynchronous Processes):
(Accepting Output): Remote processes cannot use a pipe process for
stderr.
2019-04-23 16:07:38 +02:00
Basil L. Contovounesios
3988e93d4b Backport: Improve pure and side-effect-free docs
For discussion, see thread starting at:
https://lists.gnu.org/archive/html/emacs-devel/2019-04/msg00316.html
* doc/lispref/customize.texi (Composite Types): Do not overspecify
:match-alternatives predicates.
* doc/lispref/eval.texi (Intro Eval): Anchor definition of "side
effect" for cross-referencing...
* doc/lispref/functions.texi (What Is a Function): ...from here.
Define what a pure function is.
* doc/lispref/internals.texi (Writing Emacs Primitives): Describe
currently preferred approach to marking primitives as pure and
side-effect-free.
* doc/lispref/symbols.texi (Standard Properties): Expand description
of pure and side-effect-free properties.

(cherry picked from commit 4430a9b54f)
2019-04-22 16:14:33 +01:00
Philipp Stephani
3b4e312cfe Improve documentation around standard error pipes (Bug#35328).
* doc/lispref/processes.texi (Asynchronous Processes): Document
existence and properties of the standard error process.
(Accepting Output): Document that one has to accept output from the
standard error process separately.
2019-04-22 16:07:27 +02:00
Basil L. Contovounesios
4430a9b54f Improve pure and side-effect-free docs
For discussion, see thread starting at:
https://lists.gnu.org/archive/html/emacs-devel/2019-04/msg00316.html
* doc/lispref/customize.texi (Composite Types): Do not overspecify
:match-alternatives predicates.
* doc/lispref/eval.texi (Intro Eval): Anchor definition of "side
effect" for cross-referencing...
* doc/lispref/functions.texi (What Is a Function): ...from here.
Define what a pure function is.
* doc/lispref/internals.texi (Writing Emacs Primitives): Describe
currently preferred approach to marking primitives as pure and
side-effect-free.
* doc/lispref/symbols.texi (Standard Properties): Expand description
of pure and side-effect-free properties.
2019-04-22 13:48:20 +01:00