Also tidy up several inaccuracies in the code.
* lisp/progmodes/cc-engine.el (c-forward-decl-arglist): Move point for modes
other than C++ Mode.
(c-forward-declarator): Move over a suffix following arglist parens
(e.g. const). Set the ARGLIST element of the return value to non-nil on
encountering an unbalanced open parenthesis. Don't move forward out of
enclosing parens.
* lisp/progmodes/cc-mode.el (c-fl-decl-end): Handle being in a multi-line
string. Move forward over token after declarator.
c-forward-declarator now moves over a complete declarator, including any
arglist expression, but possibly not including certain C++20 constructs.
* lisp/progmodes/cc-engine.el (c-forward-decl-arglist): New function,
extracted from c-do-declarators.
(c-forward-declarator): Extend the result list by one element, denoting
whether the function parsed an argument list. Insert special handling for a
C++ operator<op> construct. If there is a parenthesis expression, and it is
an argument list, move forward over it.
(c-do-declarators): Append an optional parameter, cdd-anon-accepted
instructing the function to handle declarators without identifiers. Extract
c-forward-decl-arglist.
* lisp/progmodes/cc-fonts.el (c-font-lock-declarators): New &optional
parameter accept-anon, as above. Analyze and use the identifier location
returned by c-do-declarators, rather than using c-last-identifier-range.
(c-font-lock-single-decl): Determine accept-anon from the context, passing it
as argument to c-font-lock-declarators.
* lisp/progmodes/cc-langs.el (c-opt-identifier-prefix-key): Make a
c-lang-defvar out of this existing c-lang-defconst.
* lisp/progmodes/cc-mode.el (c-fl-decl-end): Adapt for the new
c-forward-declarator which now moves over arglists. Amend better to handle
certain syntactically invalid constructs in C++.
* lisp/progmodes/cc-align.el (c-lineup-topmost-intro-cont): Amend so as not to
indent lines following a requires line.
* lisp/progmodes/cc-engine.el (c-forward-primary-expression)
(c-forward-c++-requires-clause): New functions.
(c-forward-declarator): Skip forward over any trailing requires clause.
(c-forward-decl-or-cast-1): Skip requires clauses before and after the type.
Amend the second element of the return list to include information on two
consecutive identifiers in <...>.
(c-looking-at-or-maybe-in-bracelist): Don't recognize braces in requires
expressions as brace lists.
(c-guess-basic-syntax): CASE 5D.7: New case to handle the continuation of a
"concept foo = " line.
* lisp/progmodes/cc-fonts.el (c-basic-matchers-before): Add a new clause to
handle the declaration of a concept.
(c-get-fontification-context): Treat the arglist of a requires construct as a
declaration arglist.
* lisp/progmodes/cc-langs.el (c-equals-nontype-decl-kwds/key)
(c-fun-name-substitute-kwds/key, c-pre-concept-<>-kwds/key): New
c-lang-consts/vars.
(c-constant-key): New c-lang-var.
(c-type-decl-suffix-key): Include "requires" in the keywords matched.
* lisp/progmodes/cc-mode.el (c-fl-decl-start): Fix an off by one error. Use
equal rather than eq to compare two syntax contexts.
Also fix some minor anomalies with other CC Mode modes in electric-pair-mode.
This fixes bug #53446.
* lisp/progmodes/cc-mode.el (c-open-string-opener): New buffer local
variable.
(c-after-change-mark-abnormal-strings): Set c-open-string-opener when an
unbalanced string is detected.
(c-before-change): Initilize c-open-string-opener to nil, each buffer change.
(c-electric-pair-inhibit-predicate): Use the value of c-open-string-opener to
flag an unbalaced string rather than trying to calculate it again.
* lisp/progmodes/cc-awk.el (c-awk-syntax-tablify-string): Set
c-open-string-opener when an unbalanced string is detected.
This fixes bug #56841.
* lisp/progmodes/cc-engine.el (c-forward-declarator): Fix an off-by-one
comparing the position after a c-forward-name with a limit.
* lisp/progmodes/cc-mode.el (c-fl-decl-end): Handle correctly point starting
inside a literal. Insert a missing c-backward-syntactic-ws in the handling of
C++ attributes. Correctly handle an unmatched (. Better handle point
starting inside a [ or (. Tidy up the handling of syntactic whitespace at the
end of the buffer.
Also replace some regexp searches which had caused regexp engine stack
overflows with simple end-of-line calls.
* lisp/progmodes/cc-fonts.el (c-make-syntactic-matcher)
(c-make-font-lock-search-form): Start the generated functions with a skipping
of comments and strings.
(c-make-font-lock-BO-decl-search-function): Start the generated function with
a (fast) movement to the start of any literal.
* lisp/progmodes/cc-mode.el (c-before-change-check-unbalanced-strings)
(c-after-change-mark-abnormal-strings): Replace complicated regexp searches
for end of logical line with basic Lisp functions.
This is needed to handle the idiosyncratic meaning of backslash in comments in
the C and C++ standards.
* lisp/progmodes/cc-engine.el: Correct a spelling error.
* lisp/progmodes/cc-mode.el (c-before-change-fix-comment-escapes)
(c-after-change-fix-comment-escapes): New functions.
* lisp/progmodes/cc-langs.el (c-get-state-before-change-functions): Add
c-before-change-fix-comment-escapes to the C/Objc and C++ values.
(c-before-font-lock-functions): Add c-after-change-fix-comment-escapes to the
C/Objc and C++ values.
This fixes bug #55230.
* lisp/progmodes/cc-defs.el (c-string-fences-set-flag, c-with-string-fences):
New variable and macro.
* lisp/progmodes/cc-mode.el (c-called-from-text-property-change-p): Add
remove-text-properties to the list of accepted functions.
(c-clear-string-fences, c-restore-string-fences): Surround the functions'
innards with c-save-buffer-state to prevent text property changes causing
change functions to be called.
(c-before-change, c-after-change, c-font-lock-fontify-region): Replace the
explicit calls to c-restore-string-fences and c-clear-string-fences with
invocations of the new macro c-with-string-fences.
* lisp/progmodes/cc-awk.el (c-awk-extend-and-syntax-tablify-region)
(c-awk-end-of-defun)
* lisp/progmodes/cc-cmds.el (c-show-syntactic-information)
(c-electric-backspace, c-hungry-delete-backwards, c-electric-delete-forward)
(c-hungry-delete-forward, c-electric-pound, c-electric-brace)
(c-electric-slash, c-electric-star, c-electric-semi&comma, c-electric-colon)
(c-electric-lt-gt, c-electric-paren, c-beginning-of-defun, c-end-of-defun)
(c-display-defun-name, c-mark-function, c-beginning-of-statement)
(c-end-of-statement, c-indent-command, c-indent-exp, c-indent-defun)
(c-indent-line-or-region, c-fill-paragraph, c-indent-new-comment-line)
(c-context-line-break)
* lisp/progmodes/cc-guess.el (c-guess-region-no-install): These are all
"boundary" functions to CC Mode. Surround each by c-with-string-fences.
Partially revert the commits from 2021-10-24 - 2021-10-26, "CC Mode: Fontify
"found types" which are recognized after being first scanned".
This removes the background fontification which ran off of a 0.1s timer, but
leaves the facility of normal fontification causing the fontification
throughout the buffer of newly found types.
* lisp/progmodes/cc-fonts.el (c-find-types-background)
(c-type-finder-timer-func): Remove.
* lisp/progmodes/cc-mode.el (c-type-finder-timer, c-inhibit-type-finder)
(c-type-finder-pos, c-post-gc-hook): Remove.
(c-leave-cc-mode-mode): Remove the manipulations of c-type-finder-timer and
c-post-gc-hook.
(c-basic-common-init): Remove the manipulations of c-type-finder-pos,
c-type-finder-timer, and c-post-gc-hook.
* lisp/progmodes/cc-vars.el (c-type-finder-time-slot)
(c-type-finder-repeat-time, c-type-finder-chunk-size): Remove.
* doc/misc/cc-mode.texi (Found Types): Remove. Amend some menu entries.
* lisp/progmodes/cc-mode.el (c-electric-pair-inhibit-predicate):
Inhibit insertion of paired quote in fewer cases.
* test/lisp/electric-tests.el (define-electric-pair-test):
Add 'c-mode' to list of modes to test by default (bug#50538).
This ensures that quotes are paired correctly within comments, allows for
insertion of quote pairs immediately before another quote, and allows
inserting quote pairs within a string (thus splitting the string in two).
This aims to fix the scenario where on jit-lock's first scan of a type, it is
not recognized as such, and only later does this happen. The fontification of
such found types is now done by background scanning in short time slices
immediately after initialising the mode.
* lisp/progmodes/cc-engine.el (c-add-type-1): New function.
(c-add-type): Extract c-add-type-1 from it, and reformulate the mechanism for
protecting c-found-types from excessive partial identifiers.
* lisp/progmodes/cc-fonts.el (c-font-lock-complex-decl-prepare): Remove the
code which cleared c-found-types on fontification at BOB.
(c-find-types-background): New function, based on c-font-lock-declarations).
(c-type-finder-timer-func): New function.
(c-re-redisplay-timer): New variable.
(c-force-redisplay, c-fontify-new-found-type): New functions.
* lisp/progmodes/cc-mode.el (c-type-finder-timer, c-inhibit-type-finder): New
variables.
(c-leave-cc-mode-mode): Nullify c-post-command-hook, c-post-gc-hook, and
c-type-finder-timer when the last CC Mode buffer of a session is killed.
(c-type-finder-pos): New variable.
(c-basic-common-init): Initialize/Install c-post-command, c-c-type-finder-pos,
c-type-finder-timer, and c-post-gc-hook.
(c-new-id-start, c-new-id-end, c-new-id-is-type): New variables.
(c-update-new-id): New function.
(c-post-command): New post command hook function, used for checking moving
away from partially typed identifiers, and making them full identifiers.
(c-post-gc-hook): New hook to prevent CC Mode activity immediately following
GC, thus allowing keyboard/mouse input to be registered.
(c-before-change): Add code to clear c-found-types on a buffer change at BOB.
(c-after-change): Call c-update-new-id to keep track of partially typed
identifiers.
* doc/misc/cc-mode.texi (Found Types): New @section in the @Chapter Font
Locking.
* lisp/progmodes/cc-vars.el (c-type-finder-time-slot)
(c-type-finder-repeat-time, c-type-finder-chunk-size): New customizable
options.
This aims to fix the scenario where on jit-lock's first scan of a type, it is
not recognized as such, and only later does this happen. The fontification of
such found types is now done by background scanning in short time slices
immediately after initialising the mode.
* lisp/progmodes/cc-engine.el (c-add-type-1): New function.
(c-add-type): Extract c-add-type-1 from it, and reformulate the mechanism for
protecting c-found-types from excessive partial identifiers.
* lisp/progmodes/cc-fonts.el (c-font-lock-complex-decl-prepare): Remove the
code which cleared c-found-types on fontification at BOB.
(c-find-types-background): New function, based on c-font-lock-declarations).
(c-types-finder-timer-func): New function.
(c-re-redisplay-timer): New variable.
(c-force-redisplay, c-fontify-new-found-type): New functions.
* lisp/progmodes/cc-mode.el (c-type-finder-timer): New variable.
(c-leave-cc-mode-mode): Nullify c-post-command-hook and c-type-finder-timer
when the last CC Mode buffer of a session is killed.
(c-type-finder-pos): New variable.
(c-basic-common-init): Initialize c-type-finder-pos and c-type-finder-timer.
(c-new-id-start, c-new-id-end, c-new-id-is-type): New variables.
(c-update-new-id): New function.
(c-post-command): New post command hook function, used for checking moving
away from partially typed identifiers, and making them full identifiers.
(c-before-change): Add code to clear c-found-types on a buffer change at BOB.
(c-after-change): Call c-update-new-id to keep track of partially typed
identifiers.
* doc/misc/cc-mode.texi (Found Types): New @section in the @Chapter Font
Locking.
* lisp/progmodes/cc-vars.el (c-type-finder-time-slot)
(c-type-finder-repeat-time, c-type-finder-chunk-size): New customizable
options.
* lisp/progmodes/cc-mode.el (c-before-change-check-unbalanced-strings): Check
the language has multi-line strings before calling
c-ml-string-opener-at-or-around-point.
* lisp/progmodes/cc-defs.el (cadar, caddr, cdddr): Add defsubsts for these for
when they are missing from the host Emacs.
(c-point): Add new `position' 'boll "beginning of logical line".
(c-clear-char-properties): Return the position of the lowest removed
property.
* lisp/progmodes/cc-engine.el (c-full-pp-to-literal): Fix for rare case where
LIMIT < START in parse-partial-sexp.
(c-old-beg-rs, c-old-end-rs, c-raw-string-end-delim-disrupted)
(c-raw-string-pos, c-raw-string-in-end-delim, c-depropertize-raw-string)
(c-depropertize-raw-strings-in-region, c-before-change-check-raw-strings)
(c-propertize-raw-string-id, c-propertize-raw-string-opener): Old functions
and variables removed or renamed "raw" -> "ml" and adapted.
(c-old-beg-ml, c-old-1-beg-ml, c-old-end-ml, c-beg-pos, c-end-pos)
(c-ml-string-end-delim-disrupted, c-depropertize-ml-string-delims)
(c-ml-string-delims-around-point,c-position-wrt-ml-delims)
(c-before-change-check-ml-strings, c-after-change-unmark-ml-strings)
(c-maybe-re-mark-ml-string, c-propertize-ml-string-id)
(c-propertize-ml-string-opener, c-depropertize-ml-string)
(c-depropertize-ml-strings-in-region): New functions and variables adapted and
possibly renamed from "raw" -> "ml".
(c-ml-string-make-closer-re, c-ml-string-make-opener-re)
(c-c++-make-ml-string-closer-re, c-c++-make-ml-string-opener-re)
(c-get-ml-closer, c-ml-string-opener-around-point)
(c-ml-string-opener-intersects-region, c-ml-string-opener-at-or-around-point)
(c-ml-string-back-to-neutral, c-ml-string-in-end-delim, c-neutralize-pos)
(c-neutralized-prop): New functions and variables.
* lisp/progmodes/cc-fonts.el (c-basic-matchers-before): Replace
c-font-lock-raw-strings with c-font-lock-ml-strings.
(c-font-lock-ml-strings): New function taking the place of the old
c-font-lock-ml-strings.
* lisp/progmodes/cc-langs.el (c-get-state-before-change-functions): Move
c-depropertize-CPP to the second item of the C++ entry, and replace
c-before-change-check-raw-strings by c-before-change-check-ml-strings. Add a
new entry for Pike Mode.
(c-before-font-lock-functions): (Replace c-after-change-unmark-raw-strings by
c-after-change-unmark-ml-strings in the C++ entry, and add a new entry for
Pike Mode.
(c-ml-string-backslash-escapes, c-ml-string-non-punc-skip-chars)
(c-ml-string-opener-re, c-ml-string-max-opener-len, c-ml-string-any-closer-re)
(c-ml-string-max-closer-len, c-ml-string-max-closer-len-no-leader)
(c-ml-string-back-closer-re, c-make-ml-string-closer-re-function)
(c-make-ml-string-opener-re-function, c-ml-string-cpp-or-opener-re)
(c-cpp-or-ml-match-offset): New c-lang-defconsts and c-land-defvars.
(c-multiline-string-start-char): Remove the Pike Mode setting.
* lisp/progmodes/cc-mode.el (c-depropertize-CPP): Test for general ml strings
rather than C++ raw strings.
(c-unescaped-nls-in-string-p): Handle languages with ml strings.
(c-clear-string-fences): Fix bug with wrong parenthesisation.
(c-before-change-check-unbalanced-strings)
(c-after-change-mark-abnormal-strings, c-after-change-escape-NL-in-string):
Adapt for multi-line strings.
* lisp/progmodes/cc-mode.el (c-mode-help-address):
Switch to bug-gnu-emacs. This is an alias for the previous
submit@debbugs address, except that if no Package header can be found,
as often seems to happen for cc-mode reports, debbugs will assign
the report to the "emacs" package rather than to "debbugs.gnu.org".
* lisp/progmodes/cc-bytecomp.el, lisp/progmodes/cc-cmds.el,
lisp/progmodes/cc-defs.el, lisp/progmodes/cc-engine.el,
lisp/progmodes/cc-fonts.el, lisp/progmodes/cc-langs.el,
lisp/progmodes/cc-mode.el: Change the explicit def-edebug-spec for many macros
into a (declare (debug ...) ..) form. Add such forms to macros which were
previously lacking def-edebug-spec forms.
lisp/progmodes/cc-align.el, lisp/progmodes/cc-awk.el,
lisp/progmodes/cc-bytecomp.el, lisp/progmodes/cc-cmds.el,
lisp/progmodes/cc-defs.el, lisp/progmodes/cc-engine.el,
lisp/progmodes/cc-fonts.el, lisp/progmodes/cc-guess.el,
lisp/progmodes/cc-langs.el, lisp/progmodes/cc-menus.el,
lisp/progmodes/cc-mode.el, lisp/progmodes/cc-styles.el,
lisp/progmodes/cc-subword.el, lisp/progmodes/cc-vars.el: Mark these files with
a `lexical-binding' setting in line 1.
lisp/progmodes/cc-align.el, lisp/progmodes/cc-engine.el,
lisp/progmodes/cc-vars.el (c-syntactic-context, c-syntactic-element): Declare
these as special variables.
lisp/progmodes/cc-bytecomp.el (cc-bytecomp-debug-msg): prefix the parameter
ARGS with a _, and remove an `ignore' call.
lisp/progmodes/cc-cmds.el (c-where-wrt-brace-construct): Remove `kluge-start',
an unused variable.
(c-while-widening-to-decl-block): Add an extra parameter, which suppresses
the generation of a setting of variable `where'.
(c-defun-name-and-limits): Remove variable `where' from the function and use
the new argument to the previous macro.
lisp/progmodes/cc-engine.el (c-cache-to-parse-ps-state): Remove two unneeded
variables, `last' and `intermediate'.
lisp/progmodes/cc-fonts.el (c-font-lock-c++-using): Remove unused variable.
lisp/progmodes/cc-langs.el (c-vsemi-status-unknown-p-fn): Replace the doc
string with the more precise one from stand-alone CC Mode.
lisp/progmodes/cc-styles.el (c-set-offset): Give the `ignored' parameter a
leading _.
In particular, have the macro cache invalidated after its last use in
c-before-change.
* lisp/progmodes/cc-langs.el (c-get-state-before-change-functions): Remove
c-invalidate-macro-cache from the entries it's in, moving it to....
* lisp/progmodes/cc-mode.el (c-before-change): Call c-invalidate-macro-cache
directly from the functions, after the call to c-invalidate-state-cache.
* lisp/progmodes/cc-awk.el (c-awk-font-lock-invalid-namespace-separators):
New function.
(c-awk-context-expand-fl-region): New function.
(awk-font-lock-keywords): Enhance handling of function declarations to include
:: tokens. Fontify new system variable names FPAT, FUNCTAB, PREC, ROUNDMODE,
SYNTAB. Fontify new keywords BEGINFILE and ENDFILE. Fontify new system
functions asorti, dcngettext, isarray, patsplit, typeof. Fontify the new
directives @include, @load, @namespace. Call
c-awk-font-lock-invalid-namespace-separators as a matcher.
* lisp/progmodes/cc-fonts.el (top level): No longer require 'cc-awk.
* lisp/progmodes/cc-langs.el (c-before-context-fontification-functions): Give
AWK the value c-awk-context-expand-fl-region rather than nil.
* lisp/progmodes/cc-mode.el (top level): Declare awk-mode-syntax-table as a
variable.
Also fix three infinite loops. The new cache accelerates backward searches
for struct beginnings in c-looking-at-or-maybe-in-bracelist.
* lisp/progmodes/cc-engine.el (c-beginning-of-statement-1): In the final loop
over unary operators, add a check (> (point) lim) to avoid certain infinite
loops.
(c-beginning-of-decl-1): In the first loop add a similar check on point and
lim.
(c-laomib-loop): New function extracted from
c-looking-at-or-maybe-in-bracelist.
(c-laomib-cache): New buffer local variable.
(c-laomib-get-cache, c-laomib-put-cache, c-laomib-fix-elt)
(c-laomib-invalidate-cache): New functions which implement the cache.
(c-looking-at-or-maybe-in-bracelist): Replace two invocations of
c-go-up-list-backwards with calls to c-parse-state. Extract the new function
c-laomib-loop. Insert code which calls c-laomib-loop minimally, with the help
of the new cache.
* lisp/progmodes/cc-mode.el (c-basic-common-init): Initialise the new cach
(at mode start).
(c-before-change): Invalidate the new cache.
(c-fl-decl-start): Add an extra check (> (point) bod-lim) to prevent looping.
Determine the enclosing brace to pass as arguments to
c-looking-at-or-maybe-in-bracelist.
This fixes bug #25706. It particularly pertains to .h files which contain
only macro definitions. Many of these files are to be found, for example, in
the driver sections of the Linux kernel.
* lisp/progmodes/cc-engine.el (c-beginning-of-statement-1, c-on-identifier)
(c-syntactic-skip-backward, c-find-decl-prefix-search, c-find-decl-spots)
(c-forward-name, c-back-over-list-of-member-inits)
(c-back-over-member-initializers, c-looking-at-inexpr-block)
(c-guess-basic-syntax): Give search limits to, or amend existing ones to
c-backward-syntactic-ws, c-forward-syntactic-ws, c-backward-token-2,
c-beginning-of-statement-1.
(c-determine-limit-no-macro): New function.
(c-determine-limit-get-base): Remove unlimted invocation of
c-backward-syntactic-ws.
(c-determine-limit): Exclude movement between two different macros. Use new
function c-determine-limit-no-macro.
(c-back-over-list-of-member-inits): New parameter `limit'.
* lisp/progmodes/cc-fonts.el (c-font-lock-complex-decl-prepare)
(c-font-lock-declarations, c-font-lock-c++-using): Give search limits to, or
amend existing ones to c-backward-syntactic-ws, c-beginning-of-decl-1.
* lisp/progmodes/cc-mode.el (c-unfind-coalesced-tokens, c-before-changer)
(c-fl-decl-end): Give search limits to, or amend existing ones to
c-backward-syntactic-ws, c-forward-syntactic-ws, skip-chars-backward,
skip-chars-forward.
This corrects both the fontification and indentation of these things, fixing
bug #42270.
* lisp/progmodes/cc-engine.el (c-do-declarators): Skip over "hangon keys" and
noise macros whilst scanning a putative C++ function.
(c-forward-decl-or-cast-1): When checking for typeless functions, skip over
"hangon keys" and noise macros.
* lisp/progmodes/cc-mode.el (c-fl-decl-end): Deal with certain invalid
"nested declarators" by scanning over them with a recursive call of
c-fl-decl-end.
* lisp/progmodes/cc-vars.el (c-noise-macro-names)
(c-noise-macro-with-parens-names): State in the doc strings that if either of
these is a regexp, it must have a submatch 1 which matches the noise macro
exactly.
These sometimes gave rise to the tail of a buffer being "stringed out".
* lixp/progmodes/cc-defs.el (c-will-be-unescaped): New macro.
* lisp/progmodes/cc-mode.el (c-before-change-check-unbalanced-strings)
(c-after-change-mark-abnormal-strings): Fix bugs in the handling of string
fence syntax-table text properties.
f20169399d (origin/emacs-27) Fix typo in Introduction to Emacs Lisp
7605060d51 Update Elisp Manual reference to which-function-mode
29708cbde7 Some precisions to bug handling
dddc971f0e CC Mode: Fix processing for when c-multiline-string-start-...
4a73fb9668 Fix description of %-constructs in 'mode-line-format'
Do this by recognising that unterminated strings in a buffer are typically
going to be few and close together. Also optimize code for C++ attributes.
* lisp/progmodes/cc-defs.el (c-previous-single-property-change): New macro.
(c-put-syn-tab, c-clear-syn-tab): Turned from macros into functions, and moved
to cc-mode.el.
(c-clear-syn-tab-properties): Amended to use c-min/max-syn-tab-mkr.
(c-with-extended-string-fences): Removed.
* lisp/progmodes/cc-engine-el (c-enclosing-c++-attribute): Rewritten for
speed.
(c-slow-enclosing-c++-attribute): Removed.
(c-semi-pp-to-literal): Remove a superfluous call to
c-with-extended-string-fences.
* lisp/progmodes/cc-mode.el (c-min-syn-tab-mkr, c-max-syn-tab-mkr): two new
marker variables which bound the region occupied by positions with
c-fl-syn-tab text properties.
(c-basic-common-init): Initialize these two variables.
(c-fl-syn-tab-region): Removed.
(c-put-syn-tab, c-clear-syn-tab): Functions moved from cc-defs.el.
(c-clear-string-fences): Amended to use the new scheme.
(c-restore-string-fences): Now takes no arguments; amended to use the new
scheme.
(c-font-lock-fontify-region): Amended to use the new scheme.
* lisp/progmodes/cc-engine.el (c-end-of-macro): Fix faulty cache handling,
where the upper bound of c-macro-cache was never being set.
(c-forward-comment-minus-1): New macro which terminates unwanted indefinite
backward searching with lots of escaped newlines in c-backward-single-comment.
(c-backward-single-comment, c-backward-comments): Use the new macro above.
* lisp/progmodes/cc-mode.el (c-before-change-check-unbalanced-strings)
(c-after-change-mark-abnormal-strings, c-after-change-escape-NL-in-string):
Optimize three regexps by using shy groups, thus preventing regexp stack
overflow while handling the large C Macro.
* lisp/progmodes/cc-mode (c-or-c++-mode--regexp): Expand the regexp to
match some more C++-only constructs and recognise a few more standard
C++ header files. Also make sure identifiers start with non-digit.
(c-or-c++-mode): Add ‘(interactive)’ declaration.
* test/lisp/progmodes/cc-mode-tests.el (c-or-c++-mode): Add test case
for the newly recognised constructs.
* lisp/progmodes/cc-cmds.el (c-align-cpp-indent-to-body)
(c-cpp-indent-to-body-flag, c-electric-pragma)
(c-add-indent-to-body-to-abbrev-table, c-clear-stale-indent-to-body-abbrevs)
(c-toggle-cpp-indent-to-body): New functions and variables.
* lisp/progmodes/cc-langs.el (c-std-abbrev-keywords): New lang const/var.
* lisp/progmodes/cc-mode.el (c-populate-abbrev-table): New function.
(c-basic-common-init): call the c-populate-abbrev-table.
(c-mode, c++-mode, objc-mode, java-mode, idl-mode, pike-mode, awk-mode):
Remove the setting of MODE-abbrev-table.
* lisp/progmodes/cc-vars.el (c-cpp-indent-to-body-directives): New defcustom.
* doc/misc/cc-mode.texi (Custom Macros): Introduce and refer to ....
(Indenting Directives): New page documenting the new mechanism.
a3c2d186eb (origin/emacs-27) CC Mode: Fix the handling of two adjacen...
a1abf73c76 Fix combine-change-calls-1 for when buffer-undo-list is t
db37dd2e84 Don't misinterpret doc string as initial value
40b217c2bf Bump checkdoc-version to match library header
60418a1ab2 Explain how to unset mode bindings (Bug#39802)
7cafbbe964 Fix describe-variable on values with circular syntax (Bug#...
592b1cfee9 Improve documentation of next-error-highlight-no-select (b...
