GitLab

* lisp/menu-bar.el (menu-bar-showhide-menu): Capitalize menu item
for display-line-numbers.  Suggested by Martin Rudalics
<rudalics@gmx.at>.

* admin/notes/unicode:
* admin/unidata/README:
* admin/unidata/BidiBrackets.txt:
* admin/unidata/BidiMirroring.txt:
* admin/unidata/Blocks.txt:
* admin/unidata/IVD_Sequences.txt:
* admin/unidata/NormalizationTest.txt:
* admin/unidata/SpecialCasing.txt:
* admin/unidata/UnicodeData.txt:
* lisp/international/characters.el:
* lisp/international/fontset.el (script-representative-chars):
* lisp/international/mule-cmds.el (ucs-names): Update per Unicode 10.0.

* lib-src/etags.c (get_lispy_tag): New function.
(L_getit, Scheme_functions): Use get_lispy_tag (Bug#5624).
* test/manual/etags/CTAGS.good:
* test/manual/etags/ETAGS.good_1:
* test/manual/etags/ETAGS.good_2:
* test/manual/etags/ETAGS.good_3:
* test/manual/etags/ETAGS.good_4:
* test/manual/etags/ETAGS.good_5:
* test/manual/etags/ETAGS.good_6:
* test/manual/etags/Makefile:
* test/manual/etags/el-src/TAGTEST.EL: Update tests.
* test/manual/etags/scm-src/test.scm: New tests for Scheme.

* src/xdisp.c (dump_glyph, dump_glyph_row, Fdump_glyph_matrix):
Use pD directives for ptrdiff_t values instead of pI, to avoid
compilation warnings on 64-bit hosts.  (Bug#27597)

* lisp/frame.el: Explain how to test whether a variable needs to
be added to the list of those which are watched for buffer
redisplay.

This merges branch 'line-numbers'.
* src/buffer.c (disable_line_numbers_overlay_at_eob): New
function.
* src/lisp.h (disable_line_numbers_overlay_at_eob): Add prototype.
* src/dispextern.h (struct it): New members pt_lnum, lnum,
lnum_bytepos, lnum_width, and lnum_pixel_width.
* src/indent.c (line_number_display_width): New function,
refactored from line-number width calculations in vertical-motion.
(Fvertical_motion): Call line_number_display_width when the width
of line-number display is needed.
(Fline_number_display_width): New defun.
(syms_of_indent): Defsubr it.
* src/indent.c (Fvertical_motion): Help C-n/C-p estimate correctly
the width used up by line numbers by looking near the window-start
point.  If window-start is outside of the accessible portion,
temporarily widen the buffer.
* src/term.c (produce_glyphs): Adjust tab stops for the horizontal
space taken by the line-number display.
* src/xdisp.c (display_count_lines_logically)
(display_count_lines_visually, maybe_produce_line_number)
(should_produce_line_number, row_text_area_empty): New functions.
(try_window_reusing_current_matrix): Don't use this method when
display-line-numbers is in effect.
(try_window_id, try_cursor_movement): Disable these optimizations
when the line-number-current-line face is different from
line-number face and for relative line numbers.
(try_window_id, redisplay_window, try_cursor_movement): For
visual line-number display, disable the same redisplay
optimizations as for relative.
(x_produce_glyphs): Adjust tab stops for the horizontal
space taken by the line-number display.
(hscroll_window_tree): Adjust hscroll calculations to line-number
display.
(DISP_INFINITY): Renamed from INFINITY to avoid clashes with
math.h; all users changed.
(set_cursor_from_row): Fix calculation of cursor X coordinate in
R2L rows with display-produced glyphs at the beginning.
(display_line): Use should_produce_line_number to determine
whether a line number should be produced for each glyph row, and
maybe_produce_line_number to produce line numbers.
Don't display line numbers in the minibuffer and in tooltip
frames.
Call row_text_area_empty to verify that a glyph
row's text area is devoid of any glyphs that came from a buffer or
a string.  This fixes a bug with empty-lines indication
disappearing when line numbers or line-prefix are displayed.
(syms_of_xdisp) <display-line-numbers, display-line-numbers-widen>
<display-line-number-width>: New buffer-local variables.
<display-line-numbers-current-absolute>: New variable.

* lisp/cus-start.el (standard): Provide customization forms for
display-line-numbers and its sub-features.
* lisp/faces.el (line-number, line-number-current-line): New faces.
* lisp/frame.el: Add display-line-numbers, display-line-numbers-widen,
display-line-numbers-current-absolute, and
display-line-number-width to the list of variables that should
trigger redisplay of the current buffer.
* lisp/menu-bar.el (menu-bar-showhide-menu): Add menu-bar item to
turn display-line-numbers on and off.
(toggle-display-line-numbers): New function.
* lisp/simple.el (last--line-number-width): New internal variable.
(line-move-visual): Use it to adjust temporary-goal-column when
line-number display changes its width.

* doc/emacs/basic.texi (Position Info): Add cross-reference to
"Display Custom", for line-number display.
* doc/emacs/custom.texi (Init Rebinding):
* doc/emacs/modes.texi (Minor Modes): Remove references to
linum-mode.
* doc/emacs/display.texi (Display Custom): Describe the
line-number display.
* doc/lispref/display.texi (Size of Displayed Text): Document
line-number-display-width.

* etc/NEWS: Document display-line-numbers and its customizations.

* src/lread.c (infile): New variable, replacing ...
(instream): ... this.  All uses changed.
(readbyte_from_stdio): New function, which deals with lookahead.
(readbyte_from_file, Fget_file_char): Use it.
(Fget_file_char): When misused, signal an error instead of
relying on undefined behavior.
(close_infile_unwind): New function.
(Fload): Use it.
(readevalloop): 2nd arg is now struct infile *, not FILE *.
All callers changed.
(read1): Handle lookahead when copying doc strings with
encoding errors.

* src/charset.c (read_hex): New args LOOKAHEAD and TERMINATOR,
replacing the old EOF.  All callers changed.  This avoids the
need to call ungetc.

* src/lread.c (readchar, read_emacs_mule_char): Fix off-by-one
error when reading an encoding error from a file, e.g., a symbol
in an .elc file whose name is "\360\220\200\360".

* test/lisp/calendar/todo-mode-tests.el (with-todo-test):
Declare an Edebug spec.  Restore pre-test-run state of test files.
(todo-test--show, todo-test--move-item)
(todo-test--insert-item): New functions.
(todo-test-get-archive): Remove, as subsumed by
todo-test--show.  Adjust all callers.
(todo-test--is-current-buffer): Rename from
todo-test-is-current-buffer and adjust uses.
(todo-test-item-highlighting): Use todo-test--show.
(todo-test-revert-buffer01, todo-test-revert-buffer02)
(todo-test-raise-lower-priority)
(todo-test-todo-mark-unmark-category, todo-test-move-item01)
(todo-test-move-item02, todo-test-move-item03)
(todo-test-move-item04, todo-test-move-item05)
(todo-test-toggle-item-header01)
(todo-test-toggle-item-header02)
(todo-test-toggle-item-header03)
(todo-test-toggle-item-header04)
(todo-test-toggle-item-header05)
(todo-test-toggle-item-header06)
(todo-test-toggle-item-header07): New tests.

* test/lisp/calendar/todo-mode-resources/todo-test-1.toda:
* test/lisp/calendar/todo-mode-resources/todo-test-1.todo:
Modify to accommodate new tests.

* lisp/calendar/todo-mode.el (todo--item-headers-hidden): New variable.
(todo-toggle-item-header): Use it.  Make this command a noop
if the file has no items.
(todo-move-item, todo-item-done): Instead of concatenating the
items to move into one string, make a list of them to
facilitate handling hidden headers.  Adjust insertion accordingly.
(todo-archive-done-item): Handle hidden headers in archive file.
(todo-unarchive-items): Handle hidden headers in todo file.
(todo-backward-item): Use todo--item-headers-hidden and handle
moving backward work when item date-time headers are hidden.
(todo-remove-item): Delete date-time header overlay.
(todo-get-overlay, todo-insert-with-overlays): Make them work
with hidden date-time headers.
(todo-modes-set-2): Make todo--item-headers-hidden buffer local.

* lisp/calendar/todo-mode.el (todo-toggle-mark-item): Calculate
current category only once.
(todo-mark-category): Update number of marked items to avoid
spurious duplication in todo-categories-with-marks alist and
corruption of the todo-categories alist.  Handle empty line
when there are no todo items and done items are shown.
(todo-set-item-priority): Make noop if called from
todo-raise-item-priority or todo-lower-item-priority when
point is on a done todo item or an empty line.
(todo-move-item): Use markers instead of integer positions to
correctly handle deleting the now moved items from the source
category (without markers an infinite loop arises when moving
marked item to a preceding category).
(todo-unarchive-items): Put point on the (first) restored done
item, instead of leaving it at the end of the done items
separator string.
(todo-revert-buffer): Ensure buffer remains read-only after
reverting.

* src/indent.c (Fline_number_display_width): Don't add 2 to the
number of columns we return, to make this consistent with
display-line-number-width.

* src/indent.c (line_number_display_width): New function,
refactored from line-number width calculations in vertical-motion.
(Fvertical_motion): Call line_number_display_width when the width
of line-number display is needed.
(Fline_number_display_width): New defun.
(syms_of_indent): Defsubr it.

* doc/lispref/display.texi (Size of Displayed Text): Document
line-number-display-width.

* etc/NEWS: Mention line-number-display-width.

* lisp/simple.el (last--line-number-width): New internal variable.
(line-move-visual): Use it to adjust temporary-goal-column when
line-number display changes its width.

Vwindow_text_change_functions had been provided for implementing
line numbers but apparently was never functional or in use.

* src/xdisp.c (redisplay_window): Remove handling of
Vwindow_text_change_functions.
(syms_of_xdisp): Remove Qwindow_text_change_functions.
(Vwindow_text_change_functions): Remove variable.
* doc/lispref/hooks.texi (Standard Hooks): Remove entry for
`window-text-change-functions'.

More followup to Karl Fogel's commit a84da83c.
* lisp/dired-aux.el (dired-add-entry, dired-subdir-hidden-p):
* lisp/dired-x.el (dired-mark-unmarked-files, dired-mark-sexp):
* lisp/help-fns.el (doc-file-to-man, doc-file-to-info):
* lisp/proced.el (proced-toggle-marks):
* lisp/progmodes/f90.el (f90-indent-line):
* lisp/ses.el (ses-load):
* lisp/tar-mode.el (tar-expunge): Replace instances of looking-at with
char comparisons using following-char.

* test/lisp/epg-tests.el (with-epg-tests): Ignore REQUIRE-PASSPHRASE
parameter, since we supply the passphrase via pinentry-program for all
GPG versions (as of 2017-02-28 "Fix epg-tests with dummy-pinentry
program (Bug#23619)").
(epg-tests-program-alist-for-passphrase-callback): Remove.

* src/xdisp.c (display_count_lines_logically): New function,
counts line numbers disregarding narrowing.  Suggested by Andy
Moreton <andrewjmoreton@gmail.com>.
(maybe_produce_line_number): Call display_count_lines_logically
instead of display_count_lines.  Adapt BEGV, ZV, etc. to
display-line-numbers-widen.
(syms_of_xdisp) <display-line-numbers-widen>: New buffer-local
variable.

* lisp/cus-start.el (standard): Provide a customization form for
display-line-numbers-widen.
* lisp/frame.el: Add display-line-numbers-widen,
display-line-numbers-current-absolute, and
display-line-number-width to the list of variables that should
trigger redisplay of the current buffer.

* doc/emacs/display.texi (Display Custom): Document
display-line-numbers-widen.

* lisp/emacs-lisp/lisp-mode.el (lisp-comment-indent): Only check for
open paren if we're looking at multiple comment characters.
* test/lisp/emacs-lisp/lisp-mode-tests.el (lisp-comment-indent-1)
(lisp-comment-indent-2): New tests.

* lisp/org/org-table.el (org-table-sort-lines):
Fix misspelling in prompt.
* lisp/org/ox-ascii.el (org-ascii--describe-datum):
Fix misspelling in call to org-element-lineage.

* lisp/emacs-lisp/lisp-mode.el (lisp-comment-indent): If current
line's code ends in open paren, set comment indentation exactly to
column following it.
(lisp-mode-variables): Set `comment-indent-function' to
`lisp-comment-indent'.

* lisp/newcomment.el (comment-choose-indent): Interpret a cons of two
integers as indicating a range of acceptable indentation.
(comment-indent): Don't apply `comment-inline-offset',
`comment-choose-indent' already does that.
(comment-indent-function):
* doc/emacs/programs.texi (Options for Comments): Document new
acceptable return values.
* etc/NEWS: Announce it.

* src/image.c (XBM_TK_OVERFLOW): New constant.
(xbm_scan): Check for integer overflow instead of relying on
undefined behavior.  Check that octal digits are actually octal.

This makes the code a bit smaller and presumably faster, as
it substitutes a single lookup for conditional jumps.
* src/character.c (hexdigit): New constant.
(syms_of_character) [HEXDIGIT_IS_CONST]: Initialize it.
* src/character.h (HEXDIGIT_CONST, HEXDIGIT_IS_CONST): New macros.
(hexdigit): New decl.
(char_hexdigit): New inline function.
* src/charset.c: Do not include c-ctype.h.
* src/charset.c (read_hex):
* src/editfns.c (styled_format):
* src/image.c (xbm_scan):
* src/lread.c (read_escape):
* src/regex.c (ISXDIGIT) [emacs]:
Use char_hexdigit insted of doing it by hand.

I have some further changes in mind that would also need to
disable the -Woverride-init warnings.  In practice these warnings
seem to be more trouble than they’re worth, so disable them in the
cc command line.
* configure.ac: Disable -Woverride-init here ...
* src/bytecode.c: ... rather than here.

* lisp/progmodes/bug-reference.el (bug-reference-bug-regexp):
Autoload safety property.  (Bug#27481)

* lisp/net/tramp.el (tramp-file-name-handler): Don't trigger timers.

* test/lisp/net/tramp-tests.el
(tramp-test36-asynchronous-requests): Trigger timers.
(tramp-test37-recursive-load, tramp-test38-remote-load-path):
Set `default-directory' to a trustworthy value.

... before first use