Noam Postavsky [Sun, 26 Mar 2017 02:41:34 +0000 (22:41 -0400)]
Fix find-library-name for load-history entries with nil FILE-NAME (Bug#26355)
* lisp/emacs-lisp/find-func.el (find-library--from-load-history):
Rename from find-library--from-load-path. Check for `load-history'
entries with nil FILE-NAMEs. Simplify by not double
checking for suffixes and making use of `locate-file'.
Paul Eggert [Mon, 17 Apr 2017 17:19:39 +0000 (10:19 -0700)]
Tighten recently-added UTF-8 check
* src/coding.c (encode_coding_utf_8): Now extern.
* src/terminal.c (terminal_glyph_code) [HAVE_STRUCT_UNIPAIR_UNICODE]:
Check for UTF-8, not just for multibyte.
David Engster [Mon, 17 Apr 2017 14:52:08 +0000 (16:52 +0200)]
xml: Properly handle symbol-qnames for attribute parsing
* lisp/xml.el (xml-parse-attlist): Do not strip 'symbol-qnames from
xml-ns argument (reverts aea67018) (Bug#26533).
(xml-maybe-do-ns): Properly handle default namespace by not
interning new symbol when 'special' flag is set.
* tests/lisp/xml-tests.el (xml-parse-test--namespace-attribute-qnames)
(xml-parse-namespace-attribute-qnames): Add test for Bug#26533.
* lisp/textmodes/css-mode.el (css--font-lock-keywords): Highlight
selectors where the part before a colon is only one character long,
such as `a:hover'.
Eli Zaretskii [Sun, 16 Apr 2017 07:43:22 +0000 (10:43 +0300)]
Fix redisplay performance problems with some fonts
* src/font.c (font_list_entities): Revert part of the changes
introduced on Apr 2, 2014 to fix bug#17125. It turns out having
zero_vector in the font-cache is an important indication that
cannot be removed. (Bug#21028)
Eli Zaretskii [Sun, 16 Apr 2017 07:27:23 +0000 (10:27 +0300)]
Add assertion to STRING_SET_CHARS
* src/lisp.h (STRING_SET_CHARS): Add an assertion and commentary
to prevent incorrect usage. For details, see this discussion:
http://lists.gnu.org/archive/html/emacs-devel/2017-04/msg00412.html.
Paul Eggert [Sun, 16 Apr 2017 05:22:49 +0000 (22:22 -0700)]
Merge from gnulib
This incorporates:
2017-04-14 intprops: try to avoid tickling similar bugs
2017-04-14 intprops: port to Oracle Studio 12.3 x86
* doc/misc/texinfo.tex, lib/intprops.h: Copy from gnulib.
Martin Rudalics [Sat, 15 Apr 2017 14:16:26 +0000 (16:16 +0200)]
Fix bugs in `with-displayed-buffer-window' and `fit-window-to-buffer'
* lisp/window.el (with-displayed-buffer-window): When a
'window-height' action alist entry specifies a function, call
`temp-buffer-window-show' with a '(window-height . t)' dummy
entry so `window--try-to-split-window' will bind
`window-combination-limit' to t and that function does not
resize any other window but the one we split this one off
(Bug#25055, Bug#25179).
(fit-window-to-buffer): Call `window-max-delta' with NOUP t so
we steal space only from windows in the same combination.
Stealing space from other windows would not allow us to return
that space later when this window is deleted (Bug#25055,
Bug#25179).
Create generated lisp files before main loaddefs.el
This should improve reproducibility of lisp/loaddefs.el.
* lisp/Makefile.in (gen-lisp): New phony target.
($(lisp)/loaddefs.el, compile-main): Depend on gen-lisp.
* src/Makefile.in ($(leimdir)/leim-list.el): Depend on all of ../leim.
* lisp/cedet/semantic.el (semantic-mode):
* lisp/cedet/semantic/fw.el (top-level):
* lisp/emacs-lisp/eieio-core.el (top-level):
Robustify to generated input files maybe not yet existing.
Martin Rudalics [Thu, 13 Apr 2017 15:45:12 +0000 (17:45 +0200)]
Describe recent frame and window changes in manuals
* doc/emacs/emacs.texi (Top):
* doc/emacs/cmdargs.texi (Borders X): Clearly separate the terms
"outer border" (for the X border which can be set from within
Emacs) and "external border" (for the border which is added by
the window manager).
* doc/lispref/display.texi (Tooltips): Clarify slightly.
* doc/lispref/elisp.texi (Top): Update node and section names.
* doc/lispref/frames.texi (Frames): Describe difference between
top-level and child frames.
(Frame Layout): Describe outer border. Add more details about
how Emacs obtains the outer size and position of a frame and
about menu bar/tool bar wrapping. Add references to new frame
parameters.
(Size and Position): Remove subsection.
(Frame Position): New subsection excerpted from the earlier Size
and Position subsection. Clarify positioning concepts and
some of their shortcomings. Describe `move-frame-functions'.
(Frame Size): New subsection excerpted from the earlier Size
and Position subsection. Describe how to track frame size
changes and the new function `frame-size-changed-p'.
(Position Parameters): Describe child frame positioning. Warn
about negative offsets. Describe 'z-group' parameter.
(Size Parameters): Describe 'text-pixels' specification
facility and new 'min-width' and 'min-height' parameters.
(Layout Parameters): Clarify description of 'tool-bar-lines' and
'menu-bar-lines' parameters.
(Frame Interaction Parameters): New subsubsection describing
'parent-frame', 'delete-before', 'mouse-wheel-frame' and
'no-other-frame' parameters.
(Management Parameters): Describe 'skip-taskbar',
'no-focus-on-map', 'no-accept-focus', 'undecorated' and
'override-redirect' parameters.
(Deleting Frames): Describe handling of 'delete-before'
parameter and child frames for `delete-frame' and
`delete-other-frames'.
(Finding All Frames): Describe `frame-list-z-order' and handling
of 'no-other-frame' parameter by `next-frame'.
(Minibuffers and Frames): Minor clarifications.
(Input Focus): Document `x-focus-frame'. Clarify descriptions
of `focus-in-hook', `focus-out-hook' and `focus-follows-mouse'.
(Visibility of Frames): Describe mapping and how the visibility
of a parent frame affects that of its child frames.
(Raising and Lowering): Describe restacking of frames and
z-groups.
(Child Frames): New section.
* doc/lispref/windows.texi (Selecting Windows): Describe
additional semantics of NORECORD argument of `select-window' and
how `buffer-list-update-hook' can emulate a "select window
hook".
(Mouse Window Auto-selection): New section.
Eli Zaretskii [Thu, 13 Apr 2017 07:03:09 +0000 (10:03 +0300)]
Avoid unnecessary regeneration of the entire loaddefs.el
* lisp/Makefile.in (autoloads .PHONY): Add commentary explaining
why $(lisp)/loaddefs.el is a dependency of '.PHONY'.
($(lisp)/loaddefs.el): Copy an existing loaddefs.el to
loaddefs.tmp before running 'batch-update-autoloads' on it, to
avoid slow regeneration of the full contents. (Bug#26459)
Use 'move-if-change' instead of 'mv', to avoid producing a new
Emacs binary when not necessary.
Martin Rudalics [Wed, 12 Apr 2017 16:22:44 +0000 (18:22 +0200)]
New internal-border face and args for select-window and x-focus-frame
Add `internal-border' face and handle it whenever clearing the
internal border. If NORECORD equals the symbol
'mark-for-redisplay', `select-window' will not record the window
but still mark it for redisplay. The new argument NOACTIVATE
for `x-focus-frame' tries to not activate FRAME when set.
* lisp/faces.el (internal-border): New face.
* lisp/mwheel.el (mwheel-scroll): Select window to scroll with
`mark-for-redisplay'.
* lisp/scroll-bar.el (scroll-bar-drag)
(scroll-bar-horizontal-drag, scroll-bar-scroll-down)
(scroll-bar-scroll-up, scroll-bar-toolkit-scroll)
(scroll-bar-toolkit-horizontal-scroll): Select window to scroll
with `mark-for-redisplay'.
* lisp/window.el (handle-select-window): When
`focus-follows-mouse' is not 'auto-raise' try to not activate
FRAME.
* src/dispextern.h (face_id): Add INTERNAL_BORDER_FACE_ID.
* src/frame.c (Fx_focus_frame): New argument NOACTIVATE.
* src/frame.h (x_focus_frame): Update extern declaration.
* src/gtkutil.c (xg_clear_under_internal_border): Remove
function.
(xg_frame_resized, xg_frame_set_char_size): Call
x_clear_under_internal_border.
(xg_tool_bar_callback): Adapt x_focus_frame call.
* src/gtkutil.h (xg_clear_under_internal_border): Remove
declaration.
* src/nsfns.m (x_focus_frame): Add argument NOACTIVATE.
* src/w32fns.c (x_clear_under_internal_border): Fill border
with internal-border background if specified.
* src/w32term.h (x_clear_under_internal_border): Add extern
declaration.
* src/w32term.c (x_after_update_window_line): Fill border
with internal-border background if specified.
(w32_set_vertical_scroll_bar, w32_set_horizontal_scroll_bar)
(x_scroll_bar_clear, w32_read_socket): Call
x_clear_under_internal_border.
(x_focus_frame): New argument NOACTIVATE.
* src/window.c (select_window): Mark WINDOW for redisplay when
NORECORD equals 'mark-for-redisplay'.
(Fselect_window): Update doc-string.
(syms_of_window): Define Qmark_for_redisplay.
* src/xdisp.c (clear_garbaged_frames, echo_area_display)
(redisplay_internal): Call x_clear_under_internal_border.
* src/xfaces.c (lookup_basic_face): Handle `window-divider'
and `internal-border' faces.
(realize_basic_faces): Realize `internal-border' face.
(syms_of_xfaces): Define Qinternal_border.
* src/xfns.c (x_set_internal_border_width): Remove call for
xg_clear_under_internal_border.
(x_focus_frame): New argument NOACTIVATE. When non-nil try to not
activate frame.
* src/xterm.c (x_fill_rectangle): No more static.
(x_clear_under_internal_border, x_after_update_window_line):
Fill border with internal-border background if specified.
(xt_horizontal_action_hook): Rewrite.
(handle_one_xevent): Call x_clear_under_internal_border.
* src/xterm.h (x_fill_rectangle): Add extern declaration.
Tak Kunihiro [Wed, 12 Apr 2017 13:29:35 +0000 (16:29 +0300)]
Scroll right and left using wheel-right and wheel-left.
These changes also make use of touchpad and trackpad (Bug#26347).
* doc/emacs/frames.texi (Mouse Commands): Document horizontal
scrolling using the mouse wheel.
* lisp/mwheel.el (mwheel-scroll): Respond to wheel-right and wheel-left.
(mwheel-tilt-scroll-p, mwheel-flip-direction)
(mwheel-scroll-left-function, mwheel-scroll-right-function): New
defcustoms.
(mouse-wheel-left-event, mouse-wheel-right-event): New variables,
events that calls wheel-left/right.
* etc/NEWS: Mention horizontal scrolling using the mouse wheel.
* lisp/emacs-lisp/package.el (package-import-keyring)
(package--check-signature-content, package-check-signature):
Use new variable package-gnupghome-dir to control which GnuPG
homedir to use.
* doc/emacs/package.texi: Mention package-gnupghome-dir.
* etc/NEWS: Mention package-gnupghome-dir.
Martin Rudalics [Tue, 11 Apr 2017 06:29:41 +0000 (08:29 +0200)]
Set x_gtk_use_window_move by default for fixing bug#25851 and bug#25943
This activates a change that was installed a few weeks ago but whose
ChangeLog was inadvertently dropped during its commit. The proper
ChangeLog is included below as part of the present commit.
* src/gtkutil.c (xg_set_geometry): When x_gtk_use_window_move
is set avoid calling x_gtk_parse_geometry (Bug#25851).
(x_wm_set_size_hint): When x_gtk_use_window_move is set, set
PPosition, USPosition and USSize flags if requested.
* src/xterm.c (x_set_offset): With GTK when
x_gtk_use_window_move is set, leave it entirely to
gtk_window_move to position the window and skip any
post-adjustments (Bug#25851 and Bug#25943).
(x_gtk_use_window_move): New variable.
Alan Mackenzie [Mon, 10 Apr 2017 21:01:38 +0000 (21:01 +0000)]
Fix a loop in C Mode caused by inadequate analysis of comments.
After M-;, and the insertion of the opening "/*", the CC Mode after-change
function got confused, since the new comment opener matched the end of a
subsequent comment, but moving back over that comment did not come back to the
starting point. Fix this.
* lisp/progmodes/cc-engine.el (c-end-of-macro): Add a limit parameter, wherer
point is left if no end-of-macro is found before it.
(c-forward-sws): Change the `safe-start' mechanism. Now `safe-start' is
non-nil except where we have an unclosed block comment at the end of a macro.
This enables us to populate the cache more fully, at the cost of some run
time.
Paul Eggert [Sun, 9 Apr 2017 07:53:27 +0000 (00:53 -0700)]
Merge from gnulib (Bug#26398)
This incorporates:
2017-04-08 getopt: prefer - to _ in new file names
2017-04-08 getopt: port recent getopt changes to macOS
* .gitignore: Add lib/getopt-cdefs.h.
* lib/getopt-cdefs.in.h: Rename from lib/getopt_cdefs.in.h.
* lib/getopt-core.h: Rename from lib/getopt_core.h.
* lib/getopt-ext.h: Rename from lib/getopt_ext.h.
* lib/getopt-pfx-core.h: Rename from lib/getopt_pfx_core.h.
* lib/getopt-pfx-ext.h: Rename from lib/getopt_pfx_ext.h.
* lib/getopt.in.h, lib/unistd.in.h, m4/getopt.m4:
Copy from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
Ken Raeburn [Sun, 9 Apr 2017 06:13:43 +0000 (02:13 -0400)]
Write updated loaddefs to a temporary file and rename into place.
In a parallel build, byte compilation can be running at the same times
as loaddefs.el is being regenerated. However, in a CANNOT_DUMP build,
loaddefs.el is read at startup and must always be in a usable state.
* lisp/Makefile.in ($(lisp)/loaddefs.el): Write generated output to
loaddefs.el.new and then rename it to loaddefs.el.
Fix rmail handling of movemail protocols (bug#18278)
* lisp/mail/rmail.el (rmail-remote-proto-p): New function.
(rmail-parse-url): Return protocol in second list element.
Only use passwords with remote mailboxes.
(rmail-insert-inbox-text): Handle non-simple local
mailboxes (maildir, MH, etc.).
Michael Albinus [Sat, 8 Apr 2017 16:35:06 +0000 (18:35 +0200)]
Tune Tramp syntax
* lisp/net/tramp-cmds.el (tramp-change-syntax):
Use `tramp-syntax-values'.
* lisp/net/tramp-compat.el (tramp-compat-tramp-syntax): New defsubst.
* lisp/net/tramp.el (tramp-syntax): Rename possible values.
(tramp-syntax-values): New defun.
(tramp-prefix-format, tramp-method-regexp)
(tramp-postfix-method-format, tramp-prefix-ipv6-format)
(tramp-postfix-ipv6-format, tramp-postfix-host-format)
(tramp-completion-file-name-regexp): Use `tramp-compat-tramp-syntax'
and changed values.
(tramp-completion-file-name-regexp-default): Rename from
`tramp-completion-file-name-regexp-unified'. Adapt docstring.
(tramp-completion-file-name-regexp-simplified): Rename from
`tramp-completion-file-name-regexp-old-style'. Adapt docstring.
(tramp-initial-completion-file-name-regexp):
Use `tramp-completion-file-name-regexp-default'.
(tramp-run-real-handler): Do not autoload any longer.
Mark Oteiza [Sat, 8 Apr 2017 15:34:17 +0000 (11:34 -0400)]
Replace more nested ifs with cond
This is a continuation of d526047 "Replace more nested ifs with cond".
* lisp/play/dunnet.el (dun-firstword, dun-firstwordl, dun-cat): Use
when and cond where appropriate.
Mark Oteiza [Sat, 8 Apr 2017 15:30:36 +0000 (11:30 -0400)]
Adjust the edebug spec of if-let*
This was fixed in Bug#24748, but now looking more closely, using gate in
the spec seems correct. See (info "(elisp) Backtracking").
* lisp/emacs-lisp/subr-x.el (if-let*): Use gate in edebug spec.
Mark Oteiza [Sat, 8 Apr 2017 15:27:17 +0000 (11:27 -0400)]
Replace some uses of cl-member-if with apply
From the mhtml-mode series. Some of the uses of cl-lib are not
necessary.
* lisp/align.el: Don't require cl-lib.
(align-region): Use apply instead of cl-member-if.
* lisp/emulation/viper.el: Don't require cl-lib.
(viper-mode, this-major-mode-requires-vi-state): Use apply instead of
cl-member-if.
Paul Eggert [Sat, 8 Apr 2017 01:54:40 +0000 (18:54 -0700)]
Deprecate copy-record in favor of copy-sequence
Since copy-sequence seems to be needed anyway for records, have it
work on records, and remove copy-record as being superfluous.
* doc/lispref/records.texi (Records, Record Functions):
* lisp/emacs-lisp/cl-macs.el (cl-defstruct):
* lisp/emacs-lisp/eieio.el (make-instance, clone):
* test/src/alloc-tests.el (record-3):
Use copy-sequence, not copy-record, to copy records.
* doc/lispref/sequences.texi (Sequence Functions)
(Array Functions): Document that aref and copy-sequence
work on records.
* etc/NEWS: Omit copy-record.
* src/alloc.c (Fcopy_record): Remove.
* src/data.c (Faref): Document that arg can be a record.
* src/fns.c (Fcopy_sequence): Copy records, too.
Paul Eggert [Sat, 8 Apr 2017 01:54:40 +0000 (18:54 -0700)]
Fix dependency checking in src/Makefile.in
* src/Makefile.in (AUTO_DEPEND, DEPDIR, DEPFLAGS): Move includes of
dependency files until after ALLOBJS is defined, since it uses ALLOBJS.
Otherwise, some dependencies will be missed.
Adjust write-region so file name is at the beginning again
* lisp/epa-file.el (epa-file-write-region):
* lisp/gnus/mm-util.el (mm-append-to-file):
* lisp/jka-compr.el (jka-compr-write-region):
* lisp/net/ange-ftp.el (ange-ftp-write-region):
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-write-region):
* lisp/net/tramp-sh.el (tramp-sh-handle-write-region):
* src/fileio.c (write_region): Put file name at the beginning and move
number of characters to the end of the message.
* lisp/vc/ediff-diff.el (ediff-exec-process): Check that the argument
passed to `file-local-copy' is a string (Bug#26378). Also fix
the existing comment for this function, and convert it to its
doc-string.
Breakpoint 1, terminate_due_to_signal at emacs.c:363
363 signal (sig, SIG_DFL);
(gdb) bt
#0 0x0000000000579826 in terminate_due_to_signal at emacs.c:363
#1 0x000000000060ec33 in die at alloc.c:7352
#2 0x000000000066db40 in intern_c_string_1 at lread.c:3914
#3 0x0000000000576884 in intern_c_string at lisp.h:3790
#4 0x00000000005dc84f in prepare_casing_context at casefiddle.c:69
#5 0x00000000005dd37f in casify_object at casefiddle.c:311
#6 0x00000000005dd47f in Fcapitalize at casefiddle.c:356
#7 0x00000000006325ac in eval_sub at eval.c:2219
#8 0x0000000000632368 in eval_sub at eval.c:2184
#9 0x000000000063446c in apply_lambda at eval.c:2875
#10 0x00000000006329af in eval_sub at eval.c:2294
#11 0x000000000062d462 in Fprogn at eval.c:449
#12 0x000000000062d4cf in prog_ignore at eval.c:461
#13 0x000000000062f19c in Fwhile at eval.c:982
#14 0x00000000006321f4 in eval_sub at eval.c:2172
#15 0x000000000062d462 in Fprogn at eval.c:449
#16 0x000000000062f0c4 in Flet at eval.c:963
#17 0x00000000006321f4 in eval_sub at eval.c:2172
#18 0x0000000000632963 in eval_sub at eval.c:2290
#19 0x000000000062d462 in Fprogn at eval.c:449
#20 0x000000000062f0c4 in Flet at eval.c:963
#21 0x00000000006321f4 in eval_sub at eval.c:2172
#22 0x0000000000668caa in readevalloop at lread.c:1927
#23 0x0000000000667253 in Fload at lread.c:1332
#24 0x0000000000632683 in eval_sub at eval.c:2233
#25 0x0000000000668caa in readevalloop at lread.c:1927
#26 0x0000000000667253 in Fload at lread.c:1332
#27 0x0000000000632683 in eval_sub at eval.c:2233
#28 0x0000000000631be5 in Feval at eval.c:2041
#29 0x000000000057e1af in top_level_2 at keyboard.c:1121
#30 0x000000000062ffc7 in internal_condition_case at eval.c:1324
#31 0x000000000057e1f0 in top_level_1 at keyboard.c:1129
#32 0x000000000062f51e in internal_catch at eval.c:1091
#33 0x000000000057e0ea in command_loop at keyboard.c:1090
#34 0x000000000057d6d5 in recursive_edit_1 at keyboard.c:697
#35 0x000000000057d8b4 in Frecursive_edit at keyboard.c:768
#36 0x000000000057b55b in main at emacs.c:1687
* src/casefiddle.c (syms_of_casefiddle): Declare four new symbols:
Qtitlecase, Qspecial_uppercase, Qspecial_lowercase and
Qspecial_titlecase.
(prepare_casing_context): Use aforementioned symbols.
Paul Eggert [Thu, 6 Apr 2017 22:05:13 +0000 (15:05 -0700)]
Minor casefiddle.c cleanups
* src/casefiddle.c: Redo recent changes to match GNU style,
and prefer C99-style decls within blocks.
(GREEK_CAPITAL_LETTER_SIGMA): Rename from CAPITAL_SIGMA, so that
we are merely using the Unicode name, and make it a constant
rather than a macro. All uses changed.
(SMALL_SIGMA): Remove; unused.
(GREEK_SMALL_LETTER_FINAL_SIGMA): Rename from SMALL_FINAL_SIGMA,
and make it a constant rather than a macro. All uses changed.
(do_casify_multibyte_string): Use ‘verify’ rather than an
unportable static_assertion local.
Paul Eggert [Thu, 6 Apr 2017 20:41:30 +0000 (13:41 -0700)]
Fix 'make clean' in lib subdirectory
* lib/Makefile.in (clean): Remove *-t files.
(mostlyclean): Remove MOSTLYCLEANFILES that are not *-t files.
This removes files like lib/getopt.h that should be removed
even if this configuration did not need to build them.
(maintainer-clean): Remove TAGS here, not in distclean,
to be consistent with ../src/Makefile.in.
In Greek, a sigma character has two lower case forms which depend on
their position in the word. Implement logic determining it.
* src/casefiddle.c (struct casing_context, case_character_impl): Don’t
assume inword is true when flag is CASE_UP and false when flag is
CASE_DOWN. For final sigma detection we need this information tracked
reliably;.
(CAPITAL_SIGMA, SMALL_SIGMA, SMALL_FINAL_SIGMA): New macros defining
Unicode code point of different forms of sigma letter.
(case_character): Implement support for final sigma casing.
(do_casify_multibyte_string, do_casify_multibyte_region): Update after
changes to case_character.
* test/src/casefiddle-tests.el (casefiddle-tests-casing): Add test
cases for final sigma.
Support casing characters which map into multiple code points (bug#24603)
Implement unconditional special casing rules defined in Unicode standard.
Among other things, they deal with cases when a single code point is
replaced by multiple ones because single character does not exist (e.g.
‘fi’ ligature turning into ‘FL’) or is not commonly used (e.g. ß turning
into SS).
* admin/unidata/SpecialCasing.txt: New data file pulled from Unicode
standard distribution.
* admin/unidata/README: Mention SpecialCasing.txt.
* admin/unidata/unidata-get.el (unidata-gen-table-special-casing,
unidata-gen-table-special-casing--do-load): New functions generating
‘special-uppercase’, ‘special-lowercase’ and ‘special-titlecase’
character Unicode properties built from the SpecialCasing.txt Unicode
data file.
* src/casefiddle.c (struct casing_str_buf): New structure for
representing short strings used to handle one-to-many character
mappings.
(case_character_imlp): New function which can handle one-to-many
character mappings.
(case_character, case_single_character): Wrappers for the above
functions. The former may map one character to multiple (or no)
code points while the latter does what the former used to do (i.e.
handles one-to-one mappings only).
(do_casify_natnum, do_casify_unibyte_string,
do_casify_unibyte_region): Use case_single_character.
(do_casify_multibyte_string, do_casify_multibyte_region): Support new
features of case_character.
* (do_casify_region): Updated to reflact do_casify_multibyte_string
changes.
(casify_word): Handle situation when one character-length of a word
can change affecting where end of the word is.
(upcase, capitalize, upcase-initials): Update documentation to mention
limitations when working on characters.
* test/src/casefiddle-tests.el (casefiddle-tests-char-properties):
Add test cases for the newly introduced character properties.
(casefiddle-tests-casing): Update test cases which are now passing.
* test/lisp/char-fold-tests.el (char-fold--ascii-upcase,
char-fold--ascii-downcase): New functions which behave like old ‘upcase’
and ‘downcase’.
(char-fold--test-match-exactly): Use the new functions. This is needed
because otherwise fi and similar characters are turned into their multi-
-character representation.
* doc/lispref/strings.texi: Describe issue with casing characters versus
strings.
* doc/lispref/nonascii.texi: Describe the new character properties.
No functional changes at this time but splitting casify_region into
a function dealing with multibyte and another dealing with unibyte
buffers will make future code changes slightly easier.
* src/casefiddle.c (casify_region): Move most of the code into two
new functions:
(do_casify_multibyte_region, do_casify_unibyte_region): new functions.
* src/casefiddle.c (struct casing_context, prepare_casing_context): Add
titlecase_char_table member. It’s set to the ‘titlecase’ Unicode
property table if capitalisation has been requested.
(case_character): Make use of the titlecase_char_table to title-case
initial characters when capitalising.
* test/src/casefiddle-tests.el (casefiddle-tests--characters,
casefiddle-tests-casing): Update test cases which are now passing.