Also start using `symbols' as the PAREN argument to regexp-opt.
lisp/progmodes/cc-defs.el (c-make-keywords-re): Simplify,
remove the redundant `appendable' value of the ADORN parameter,
use the `symbols' value of the PAREN argument to regexp.
(c-emacs-features): Test that "\_<" and "\_>" work in regexps
before allowing CC Mode to start.
lisp/progmodes/cc-engine.el (c-looking-at-decl-block): When
GOTO-START is set, leave point at the _last_ Java annotation,
if any. Clarify this in the doc string.
(c-guess-basic-syntax CASE 5G): Replace a not needed t
GOTO-START argument to c-looking-at-decl-block with nil.
lisp/progmodes/cc-langs.el (c-make-mode-syntax-table): Make the
syntax of ?@ in Java Mode symbol for processing annotations.
(c-opt-identifier-concat-key, c-opt-identifier-prefix-key)
(c-opt-after-id-concat-key, c-identifier-key)
(c-cpp-message-directives-re, c-cpp-include-key, c-pack-key)
(c-brace-stack-thing-key, c-brace-stack-no-semi-key): Replace
the `appendable' value of the ADORN argument to
c-make-keywords-re with t.
(c-annotation-re): New lang const and lang var.
(c-keywords-obarray): Replace an explicit (apply 'nconc (mapcar
... )) with c--mapcan, now that the obscure bug with mapcan in
Emacs has been resolved.
lisp/progmodes/cc-align.el (c-lineup-gnu-DEFUN-intro-cont)
(c-lineup-java-throws, c-snug-do-while)
lisp/progmodes/cc-awk.el (c-awk-pre-exp-alphanum-kwd-re)
(c-awk-after-if-for-while-condition-p)
(c-awk-after-function-decl-param-list)
(c-awk-after-continue-token)
(c-awk-after-rbrace-or-statement-semicolon)
(awk-font-lock-keywords)
lisp/progmodes/cc-cmds.el (c-defun-name-1)
lisp/progmodes/cc-engine.el (c-beginning-of-statement-1)
(c-forward-<>-arglist, c-forward-label, c-skip-conditional)
(c-looking-at-c++-lambda-expression, c-add-stmt-syntax)
(c-guess-basic-syntax CASE 11, CASE 12, CASE 13, CASE 15)
(CASE 5C.3, CASE 5D.4, CASE 7D)
lisp/progmodes/cc-fonts.el (c-cpp-matchers)
(c-basic-matchers-before, c-font-lock-declarations)
(c-font-lock-c++-modules, c-simple-decl-matchers)
(c-complex-decl-matchers, c-basic-matchers-after)
lisp/progmodes/cc-langs.el (c-paragraph-start)
(c-stmt-block-only-keywords-regexp)
(c-type-decl-prefix-keywords-key, c-type-decl-prefix-key)
(c-type-decl-suffix-key, c-known-type-key)
(c-enum-clause-introduction-re)
lisp/progmodes/cc-menus.el (cc-imenu-c++-generic-expression)
lisp/progmodes/cc-vars.el (c-make-noise-macro-regexps)
(c-make-macro-with-semi-re): Replace explicit "\<" and "\>"
with "\_<" and "\_>". Replace explicit specification of
non-'_' character after word end with "\_>". Replace
concatenation of "\<" and "\>" with regexps with (regexp-opt
... 'symbols). Use (regexp-opt ... 'symbols) in general.
* lisp/progmodes/cc-awk.el (awk-font-lock-keywords):
Reformulate this using backquote and ,@. Only include the
entry for _" in Emacs.
* lisp/progmodes/cc-defs.el (c--mapcan, c--set-difference)
c--intersection, c--macroexpand-all, c--delete-duplicates): No
longer use the existence of cl-lib.el as the criterion for
what to expand to.
(c-min-property-position): Use c-next-single-property-change
rather than next-single-property-change. This now works in
XEmacs.
* lisp/progmodes/cc-engine.el
(c-invalidate-sws-region-after-del)
(c-invalidate-sws-region-after-ins, c-forward-sws)
(c-backward-sws, c-find-decl-spots): Replace
next/previous-single-property-change by
c-next/previous-single-property-change to ensure functionality
in XEmacs.
(c-forward-sws, c-backward-sws): Handle NO-BREAKING-SPACE as
whitespace. This corrects the error in hardspace.c in the test
suite.
* lisp/progmodes/cc-fonts.el (c-font-lock-ml-strings): Refactor
some nested `if's into a cond form. Don't fontify multiline
string delimiters in XEmacs, in keeping with its string
conventions.
* lisp/progmodes/cc-langs.el (c-populate-syntax-table): Set the
syntax of NO-BREAKING-SPACE to whitespace rather than
punctuation.
* lisp/progmodes/cc-mode.el (c-before-change): Use
c-previous-single-property-change rather than
previous-single-property-change to ensure functionality in
XEmacs.
Improve the handling of #error and #warning in C and C++ Modes.
* lisp/progmodes/cc-engine.el (c-looking-at-c++-attribute)
(c-enclosing-c++-attribute, c-forward-sws, c-backward-sws):
Handle attributes in C as they have been handled in C++.
(c-forward-align-clause-throw-if-invalid): New macro.
(c-forward-type): Handle alignas, alignof, and _BitInt, putting
a catch block around most of the function to catch invalid uses
of these new keywords.
(c-in-id-arglist): New function.
(c-forward-decl-or-cast-1): Recognize a "maybe" type identifier
as a type in arglists when there is no parameter identifier
associated with it.
* lisp/progmodes/cc-fonts.el (c-font-lock-cpp-messages): New
function.
(c-cpp-matchers): Move the handling of "invalid" comment
delimiters outside of the block handling CPP directives.
Remove the inline handling of #error and #warning, using the
new function c-font-lock-cpp-messages instead.
(c-get-fontification-context): Handle alignof, alignas,
_BitInt.
(c-font-lock-declarations): Adapt fontification of K&R
parameters to the C23 nameless parameter scheme.
* lisp/progmodes/cc-langs.el (c-has-quoted-numbers)
(c-stmt-boundary-skip-chars)
(c-recognize-post-brace-list-type-p, c-modifier-kwds)
(c-constant-kwds): Handle C the same as the existing C++
handling.
(c-cpp-message-directives-re, noncontinued-line-end)
(c-cpp-messages-re, c-cpp-message-match-no): New
c-lang-consts/vars.
(c-cpp-include-directives): New directive embed.
(c-cpp-expr-directives): New directives elifdef, elifndef.
(c-primitive-type-kwds): New types, _Decimal*, bool, char*_t,
nullptr_t.
(c-typeof-kwds): New keyword typeof_unqual.
(c-type-with-paren-kwds, c-type-with-paren-key): New
c-lang-const/vars.
(c-type-modifier-with-parens-kwds)
(c-type-modifier-with-parens-key, c-type-internal-paren-kwds)
(c-type-internal-paren-key): New c-lang-const/vars.
(c-type-modifier-prefix-kwds, c-type-start-kwds): Amend with
the above new c-lang-consts.
(c-no-type-with-equals-kwds, c-no-type-with-equals-key): New
c-lang-const/vars.
(c-modifier-kwds): Add constexpr, auto, and thread_local to the
C value.
(c-paren-nontype-kwds): Add static_assert to the C value.
(c-constant-kwds): Add nullptr to the C value.
(c-regular-keywords-regexp): Include c-type-with-paren-kwds.
(c-recognize-nameless-type-decls): New c-lang-const/var.
* lisp/progmodes/cc-mode.el (c-leave-cc-mode-mode): Also clear
c-digit-separator properties.
1. Fix closing paren aligning with trailing comment on line
with matching open paren.
2. Fix indentation of first identifier inside a comma separated
list aligning with the type rather than the subsequent
identifiers.
3. Fix lambda expressions inside a brace list aligning like a
single statement.
* lisp/progmodes/cc-align.el (c-lineup-arglist): Take into
account any preceding comments when lining up the arguments in
the arglist.
(c-lineup-arglist-intro-after-paren): Handle comments properly,
and don't line up the closing parenthesis with a trailing
comment on the first line.
(c-lineup-item-after-paren-at-boi): Also allow a paren to count
as being at BOI when it is preceded only by open parens on that
line.
(c-lineup-runin-statements, c-lineup-ObjC-method-call): Hanle
comments better.
* lisp/progmodes/cc-engine.el (c-forward-comments) Introduce an
optional limit parameter. Use this limit in calls from
cc-align.el and cc-mode.el.
(c-just-after-func-arglist-p): Handle the presence of a
protection keyword such as "public".
(c-at-bracelist-p): Renamed from c-inside-bracelist-p, after
dropping the accept-in-paren parameter, having removed its
functionality.
(c-looking-at-statement-block-1): New function, based on the
old c-looking-at-statement-block. Enhanced to handle C++
lambda expressions, and to return the symbol `maybe' when the
contents of a brace delimited block fail to determine whether
it is a statement block.
(c-looking-at-statement-block): Enhanced to examine the context
of a brace delimited block when the contents are ambiguous.
(c-looking-at-c++-lambda-expression): Check the character after
point is a < before calling c-forward-<>-arglist.
(c-add-stmt-syntax): Make the context more accurate by calling
c-looking-at-statement-block.
(c-guess-basic-syntax, CASE 5D.5): Replace the syntactic symbol
topmost-intro-cont with the new symbol class-field-cont,
additionally determining the position of the enclosing brace as
an extra anchor point.
(c-guess-basic-syntax, CASE 5V): New case for an identifier
following a type inside class braces.
(c-guess-basic-syntax, CASE 9): Use
c-looking-at-statement-block to detect a brace list more
accurately.
* lisp/progmodes/cc-fonts.el (c-get-fontification-context):
Rename the call to c-inside-bracelist-p to c-at-bracelist-p.
* lisp/progmodes/cc-langs.el (c-protection-kwds): Add an entry
for java-mode.
(c-stmt-block-only-keywords-regexp): Prevent this regexp also
matching a character preceding the keyword.
* /lisp/progmodes/cc-mode.el (c-before-change-include-<>)
(c-after-change-include-<>): Use the new limit argument to
c-forward-comments.
* lisp/progmodes/cc-styles.el (c-style-alist, "gnu" and "java"
styles): Change the offset for arglist-close to
c-lineup-arglist-close-under-paren.
* lisp/progmodes/cc-vars.el (c-offsets-alist): Introduce the
new syntactic symbol class-field-cont, giving it default
offset +.
* doc/misc/cc-mode.texi (Syntactic Symbols, Class Symbols):
Document the new syntactic symbol class-field-cont.
In C, Pike, and IDL Modes, deleting and reinserting such a <
could create havoc with the category/syntax-table properties on
the < and >. Also the contents of <...> should only get paren
properties when the #include is present and correct.
* lisp/progmodes/cc-fonts.el (c-cpp-matchers): Replace the
c-make-font-lock-search-function which put properties on the
<...> with a simple matcher.
* lisp/progmodes/cc-langs.el
(c-get-state-before-change-functions)
(c-before-font-lock-functions): Add respectively
c-before-change-include-<> and c-after-change-include-<> in the
C, Pike and IDL entries of these variables.
* lisp/progmodes/cc-mode.el (c-before-change-include-<>)
(c-after-change-include-<>): New functions.
This fixes bug#72695.
* lisp/progmodes/cc-align.el (c-lineup-topmost-intro-cont): Do
not indent further a line following a closing brace of a
requires clause.
* lisp/progmodes/cc-engine.el (c-forward-keyword-clause):
Separate the handling of "any-paren-kwds" into
"type-paren-kwds" and "nontype-paren-kwds", simplifying the
handling of the latter.
(c-forward-primary-expression): Recognize (...) followed by {
as a primary expression.
(c-looking-at-or-maybe-in-bracelist): No longer recognize an
enum list as a brace list. Remove the handling of enum lists.
(c-looking-at-c++-lambda-expression)
(c-backward-over-lambda-expression): New functions.
(c-c++-vsemi-p): Don't recognize the end of requires clauses as
virtual semicolons.
(c-guess-basic-syntax): CASE 5U - new cond arm to recognize
being after a requires clause. These lines now get syntax
topmost-intro-cont rather than topmost-intro, and their anchor
positions are now on the topmost-intro line rather than the
previous topmost-intro-cont.
Throughout the file: simplify handling of
c-fun-name-substitute-key, where there is no need to check for
a following _ character, and introduce c-requires-clause-key
for greater accuracy in parsing, even though both of these are
just "requires".
* lisp/progmodes/cc-fonts.el (c-get-fontification-context):
Tidy up the handling of c-fun-name-substitue-key, as in
cc-engine.el.
* lisp/progmodes/cc-langs.el (c-lambda-spec-kwds)
(c-lambda-spec-key): New lang vars.
(c-fun-name-substitute-key): Now an adorned expression.
(c-requires-clause-kwds, c-requires-clause-key): New lang vars.
This will allow enums to be indented as in the GNU coding
standards without affecting brace lists.
* lisp/progmodes/cc-align.el
(c-lineup-arglist-intro-after-paren)
(c-lineup-arglist-close-under-paren)
(c-lineup-whitesmith-in-block)
(c-lineup-after-whitesmith-blocks): Amend doc strings to
indicate they can be used for enum-* syntactic symbols too.
* lisp/progmodes/cc-engine.el (c-looking-at-decl-block)
(c-backward-typed-enum-colon, c-backward-over-enum-header):
Rename c-after-brace-list-key to c-after-enum-list-key and
c-brace-list-key to c-enum-list-key.
(c-at-enum-brace): New function.
(c-inside-bracelist-p): Don't check for enums any more.
(c-add-stmt-syntax): New cond arm for enums.
(c-guess-continued-construct CASE B.6) New code for enum-open.
(c-guess-basic-syntax CASE 5A.3, CASE 7B, CASE 9, CASE 9B)
(CASE 9C, CASE 9D): Use the new function c-at-enum-brace, and
use enum-* syntactic symbols rather than brace-list-* ones
where appropriate.
(c-used-syntactic-symbols): New dynamic variable.
(c-evaluate-offset): Add handling for a different syntactic
symbol as the cdr of a c-offsets-alist element.
* lisp/progmodes/cc-fonts.el (c-get-fontification-context):
Add a call to c-at-enum-brace since c-inside-bracelist-p no
longer handles enums.
(c-font-lock-enum-body, c-font-lock-enum-tail): Condense calls
to c-backward-over-enum-header to c-at-enum-brace.
(c-basic-matchers-after): Replace a c-brace-list-decl-kwds with
c-enum-list-kwds.
* lisp/progmodes/cc-langs.el (c-enum-list-kwds)
(c-enum-list-key): New names for c-brace-list-decl-kwds and
c-brace-list-key.
(c-after-enum-list-kwds, c-after-enum-list-key): New names for
c-after-brace-list-decl-kwds and c-after-brace-list-key.
(c-enum-list-key, c-after-enum-list-key): Add code to
use a value of an old name, should a derived mode still use
that.
(c-defun-type-name-decl-kwds, c-typedef-decl-kwds)
(c-typeless-decl-kwds, c-prefix-spec-kwds)
(c-brace-id-list-kwds, c-enum-clause-introduction-re): Use
c-enum-list-kwds rather than c-brace-list-decl-kwds.
* lisp/progmodes/cc-styles.el (c-read-offset): Add "a
syntactic symbol" into an error message text.
* lisp/progmodes/cc-vars.el (c-valid-offset): Allow for a
syntactic symbol as the parameter.
(c-offsets-alist): Add new syntactic symbols enum-open,
enum-close, enum-intro, and enum-entry.
* doc/misc/cc-mode.texi (Syntactic Symbols): Add a note that
anchor points are briefly documented in cc-vars.el. Correct
the suffix "-block-intro" to "-intro". Remove "an enum or"
from the descriptions of the brace-list-* syntactic symbols.
Add in new descriptions for the enum-* syntactic symbols.
(Brace List Symbols): Remove references to enums. Add a note
that enums are no longer brace-lists.
(Enum Symbols): A new subsection documenting the new enum-*
syntactic symbols.
(c-offsets-alist): Document the new possibility, syntactic
symbol, for the cdr of an alist entry.
(Brace/Paren Line-Up, List Line-Up): Note that the new enum
syntactic symbols can be handled by these lineup functions.
* lisp/progmodes/cc-engine.el (c-after-conditional): Handle the
new keyword in place of a paren sexp after `if'.
* lisp/progmodes/cc-langs.el (c-negation-op-re)
(c-paren-clause-kwds, c-paren-clause-key)
(c-block-stmt-with-kwds, c-block-stmt-with-key): New
lang-consts/vars.
* if-11.cc, if-11.res: New test files.
In C, C++, Objective C, and Pike modes, regard \\ in a string
at EOL as a backslash followed by an escaped newline. In the
other languages, this remains regarded as an escaped backslash
followed by an invalid string terminator.
* lisp/progmodes/cc-defs.el (c-is-escaped, c-will-be-escaped):
Amend to observe the changed notion of escaped newlines.
* lisp/progmodes/cc-langs.el (c-string-escaped-newlines):
Unused, removed.
(c-escaped-newline-takes-precedence): New lang const and var.
(c-string-innards-re-alist): Amend, using the above new lang
var.
* lisp/progmodes/cc-langs.el
(c-get-state-before-change-functions)
(c-before-font-lock-functions): Separate the C and objc
versions, and add (to the first) c-unmark-<>-around-region and
c-before-change-check-<>-operators, (to the second)
c-unmark-<>-around-region and c-restore-<>-properties into the
objc versions of these lang variables.
Optionally, fontify them with font-lock-warning-face.
This fixes bug#64204.
* lisp/progmodes/cc-fonts.el (c-font-lock-ids-with-dollar):
New function.
(c-simple-decl-matchers, c-complex-decl-matchers): invoke
c-font-lock-ids-with-dollar for pertinent languages.
* lisp/progmodes/cc-langs.el (c-symbol-start): Add `$' to the
character list.
(c-dollar-in-ids): New lang const.
(c-symbol-key): For the Pike value, use the AWK value rather
than the C value as the basis, as the latter is no longer
suitable.
* lisp/progmodes/cc-vars.el (c-warn-ids-with-dollar): New
customizable option.
* doc/misc/cc-mode.texi ("Miscellaneous Font Locking"): Add a
section on the new optional fontification of identifiers with
'font-lock-warning-face'.
This fixes bug#62841.
In particular, correct the syntax-table text properties on the
remaining <...>s.
* lisp/progmodes/cc-align.el
(c-lineup-template-args-indented-from-margin): New lineup
function.
* lisp/progmodes/cc-defs.el (c-put-char-properties): New macro.
(c-search-forward-non-nil-char-property): Handle terminating
limit correctly.
* lisp/progmodes/cc-engine.el
(c-clear-<-pair-props-if-match-after)
(c-clear->-pair-props-if-match-before): Return the position
outside the matching < or >, not merely t.
(c-end-of-literal): New function.
(c-unmark-<>-around-region): New function.
(c-before-change-check-<>-operators): Refactor, calling
c-unmark-<>-around-region.
(c-<>-get-restricted): New function, extracted from
c-restore-<>-properties.
(c-restore-<>-properties): Handle ">" characters whose matching
"<" has not yet been encountered.
(c-ml-string-opener-at-or-around-point): Fix an off by one
error.
(c-backward-<>-arglist): New parameter restricted-function, a
function which calculates c-restricted-<>-arglists for the
current operation.
* lisp/progmodes/cc-fonts.el (c-font-lock-c++-using): Check
point is less than limit in the loop.
* lisp/progmodes/cc-langs.el
(c-get-state-before-change-functions)
(c-before-font-lock-functions): Add the new function
c-unmark-<>-around-region into the C++ and Java values of the
variable.
* lisp/progmodes/cc-mode.el (c-clear-string-fences)
(c-restore-string-fences): Neutralize and restore the
syntax-table properties between an unbalanced " and EOL.
* lisp/progmodes/cc-vars.el (c-offsets-alist): Put new lineup
function c-lineup-template-args-indented-from-margin into entry
for template-args-cont.
* doc/misc/cc-mode.texi (List Line-Up): Document
c-lineup-template-args-indented-from-margin.
This partly corrects bug#64069.
* lisp/progmodes/cc-langs.el (c-ml-string-back-closer-re): Fix
four occurrences, one of which was in a comment, one in a doc
string.
* lisp/progmodes/cc-mode.el (c-or-c++-mode--regexp.): Fix one
occurrence.
This fixes bug #62386.
* lisp/progmodes/cc-engine.el (c-forward-over-compound-identifier): Don't
move forward over whitespace following the identifier.
(c-forward-primary-expression): Add parameter stop-at-end meaning don't move
forward over whitespace after the construct when non-nil. Don't recognise a
primary expression when an open brace follows a parenthesized expression.
(c-forward-constraint-clause): Extracted from c-forward-c++-requires-clause.
Add parameter stop-at-end as above.
(c-forward-c++-requires-clause): New stop-at-end parameter as above. Call the
new function c-forward-constraint-clause.
(c-forward-concept-fragment, c-looking-at-concept)
(c-in-requires-or-at-end-of-clause, c-c++-vsemi-p): New functions.
(c-guess-basic-syntax): New CASE 5A.7: "defun" open in a requires expression.
CASE 5F: Close of a non-class declaration level block: Move to earlier in the
function.
CASE 5D: Also check for being in or at end of a constraint.
New CASE 20: A C++ requires sub-clause.
New CASE 16G: The closing brace of a requires clause.
New CASE 17J: First "statement" inside a requires "function".
(c-forward-primary-expression, c-forward-declarator, c-forward-decl-or-cast-1)
(c-looking-at-or-maybe-in-bracelist): Amend the method of detecting end of
symbol "requires" (aka c-fun-name-substitute-key).
* lisp/progmodes/cc-fonts.el (c-get-fontification-context): Amend the method
of detecting end of symbol "requires".
* lisp/progmodes/cc-langs.el (c-at-vsemi-p-fn): Change the C++ entry to
c-c++-vsemi-p.
(c-fun-name-substitute-key): Change to an unadorned regexp.
* lisp/progmodes/cc-vars.el (c-offsets-alist): Add new syntactic symbol
constraint-cont.
* doc/misc/cc-mode.texi (Syntactic Symbols): Add an entry for contraint-cont.
(Constraint Symbols): New node under Syntactic Symbols.
This fixes bug #61481.
* lisp/progmodes/cc-engine.el (c-guess-basic-syntax): Add a new CASE 6 for
_Generic.
* lisp/progmodes/cc-fonts.el (c-fontify-types-and-refs): Use `let*' rather
than `let'.
(c-get-fontification-context): Add the new result `generic', and add handling
to determine it.
(c-font-lock-declarations): Call c-font-lock-c11-generic-clause when needed.
(c-font-lock-c11-generic-clause): New function.
* lisp/progmodes/cc-langs.el (c-generic-kwds, c-generic-key): New lang
constants/variable.
* lisp/progmodes/cc-engine.el (c-forward-over-token): New LIMIT parameter
* lisp/progmodes/cc-langs.el (c-anchored-hash-define-no-parens): Replace
ill-formed regular expression (which mixed \\sw and character alternative)
with simpler efficient regexp.
* lisp/progmodes/cc-mode.el (c-fl-decl-end): New forward limit LIM+ used in
c-forward-declarator and c-forward-over-token.
This fixes bug #59267. It applies to C Mode only, and refers to constructs
like "register count;" which are implicitly of int type.
* lisp/progmodes/cc-engine.el (c-forward-type): Use the new regexp
c-maybe-typeless-specifier-re in place of c-opt-type-modifier-prefix-key. Add
an extra arm to the main cond form to handle the construct, and another to
handle "extern "C" foo_t my_foo;".
(c-forward-decl-or-cast-1): Adapt to handle the result no-id from
c-forward-type.
* lisp/progmodes/cc-langs.el (c-maybe-typeless-specifier-re): New lang
const/var.
* lisp/progmodes/cc-engine.el (c-forward-type): Test for the special new
value `just-one' of c-promote-possible-types, and if found, fontify the type,
but don't add it to c-found-types.
(c-forward-decl-or-cast-1): Add the new &optional parameter inside-macro.
Whilst checking for a cast construct, analyze the text following the closing
paren more rigorously.
Check for, and allow, the closing paren of a macro arglist before the putative
cast construct.
* lisp/progmodes/cc-fonts.el (c-font-lock-declarations): In the lambda
function, pass the parameter inside-macro to c-forward-decl-or-cast-1.
* lisp/progmodes/cc-langs.el (c-primary-expr-regexp-details): New
c-lang-defvar which calculates `c-primary-expr-regexp' and three match
numbers for various sub-expressions in the regexp.
(c-primary-expr-regexp): Now extracted from `c-primary-expr-regexp-details'.
(c-per-++---match, c-per-&*+--match, c-per-\(-match): New
c-lang-defconsts/vars extracted from `c-primary-expr-regexp-details'.
This fixes bug #58534.
* lisp/progmodes/cc-engine.el (c-forward-type): Only regard "struct" keywords
which create self contained types (e.g. C++'s "typename") as creating found
types.
* lisp/progmodes/cc-langs.el (c-self-contained-typename-kwds
(c-self-contained-typename-key): New language consts and variable.
Give both the "" and _tag font-lock-function-name-face. Also correct the
fontification of an inherited class name when there is an attribute between
the class name being declared and the colon introducing the inheritance.
* lisp/progmodes/cc-engine.el (c-forward-over-colon-type-list): New function.
(c-forward-keyword-clause): Use the above new function instead of a
looking-at.
(c-forward-name, c-forward-declarator): Accept both the "" and the tag as part
of the name.
* lisp/progmodes/cc-fonts.el (c-font-lock-declarators): Fontify the "" (which
already has font-lock-string-face) and the tag with
font-lock-function-name-face.
* lisp/progmodes/cc-langs.el (c-overloadable-operators): Add "" to this list.
(c-sub-colon-type-list-re): New lang-const and lang-var.
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.
* lisp/progmodes/cc-engine.el (c-before-after-change-check-c++-modules): New
function.
(c-forward-<>-arglist): Add special handling for "import <...>".
* lisp/progmodes/cc-fonts.el (c-preprocessor-face-name): Add extra "fallback"
face after font-lock-reference-face, namely font-lock-constant-face.
(c-cpp-matchers): Don't fontify the <> delimiters for XEmacs in #include <..>.
(c-basic-matchers-before): Add c-font-lock-c++-modules to the C++ value.
(c-forward-c++-module-name, c-forward-c++-module-partition-name)
(c-font-lock-c++-modules): New functions.
* lisp/progmodes/cc-langs.el (c-get-state-before-change-functions)
(c-before-font-lock-functions): Include
c-before-after-change-check-c++-modules in the C++ value of these variables.
(c-module-name-re): New c-lang-const/var.
(c-other-decl-kwds): Add a C++ value "export".
(c-<>-sexp-kwds): Add a new component c-import-<>-kwds.
(c-import-<>-kwds, c-module-kwds): New c-lang-consts.
(c-module-key): New c-lang-const/var.
This is a followup to Stefan Monnier's fix for bug #57065 from 2022-08-25.
* lisp/progmodes/cc-langs.el (c-init-language-vars): Add a #' after the
funcall.
(c-lang-const c-make-mode-syntax-table) already returns a function,
so quote it to avoid double evaluation since it could fail if the
function is not self-evaluating, such as when it's a symbol or
a value of the form (closure ...).
This fix allows M-: (insert (make-string 1000000 ?y)) to work fast when
inserted between C++ raw string delimiters after (setq long-line-threshold
nil).
* lisp/progmodes/cc-langs.el (c-symbol-key): Replace a "*" by "\\{,1000\\}" in
a regexp.
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 #52796.
* lisp/progmodes/cc-engine.el (c-update-brace-stack): Handle a "*" like a
semicolon, cancelling the expectation of a brace.
* lisp/progmodes/cc-langs.el (c-brace-stack-thing-key): Add a "*" into the
sets of significant characters.
