* lisp/progmodes/cperl-mode.el (cperl-unwind-to-safe): Replace
(and extend) inline comment by a docstring. Handle edge cases when
inserting text with elisp (related to Bug#28962).
(cperl-process-here-doc): Add syntax-type `here-doc-start'.
(cperl-find-pods-heres): Make sure that the results of this
function are immediately visible.
* test/lisp/progmodes/cperl-mode-tests.el (cperl-test-bug-14343):
Add test cases for "empty" here-documents and inserting at the
edges of a here-document.
* lisp/progmodes/cc-engine.el (c-looking-at-or-maybe-in-bracelist): early in
function, check alternatively for c-back-over-compound-identifier when doing
c-backward-token-2.
* bracelist-36.{cc,res}: New test files.
* lisp/progmodes/compile.el (compilation-find-file): Avoid
`expand-file-name' when computing the file names, because that will
reliably give the wrong result when there's symlinks and ".."
involved (bug#8035).
* lisp/progmodes/cperl-mode.el (cperl-mode): Use
`cperl-font-lock-syntactic-face-function'.
(cperl-commentify): Add a docstring, eliminate unused formal
parameter `noface'.
(cperl-is-here-doc-p): New function to detect whether "<<" starts
a here-document, factored out from `cperl-find-pods-heres'.
(cperl-here-doc-functions): New variable: List of functions which
allow here-documents as parameters, for use in
`cperl-is-here-doc-p'.
(cperl-process-here-doc): New function, factored out from
`cperl-find-pods-heres'. Fixed to keep correct fontification
after non-interactive (elisp) changes (Bug#14343, Bug#28962).
(cperl-find-pods-heres): Extend the doc-string to describe all
parameters. Don't remove text properties in recursive calls on
the same line. Call `cperl-process-here-doc' when appropriate.
(cperl-font-lock-syntactic-face-function): New function to
highlight c-style comments as here-documents (adapted from
perl-mode.el).
* test/lisp/progmodes/cperl-mode-tests.el
(cperl-test-identify-heredoc): New test for the new function
`cperl-is-here-doc-p'.
(cperl-test-identify-no-heredoc): New test for the new function
`cperl-is-here-doc-p', testing constructs which start with "<<"
but are no here-documents.
(cperl-test-here-doc-missing-end): New test to verify correct
detection of a missing here-document delimiter.
(cperl-test-bug-14343): New test to verify that inserting text
into a here-document with elisp does not break fontification.
The new entry appears next to "Find Definition" and like it only
appears when the context menu was invoked on an identifier.
* lisp/progmodes/prog-mode.el (prog-context-menu): New menu entry.
* lisp/progmodes/xref.el (xref-find-references-at-mouse): New
function, analogous to `xref-find-definitions-at-mouse`.
* lisp/progmodes/xref.el (xref-backend-references): Add messages to
show the user that something is happening instead of silently freezing
during the frequently long synchronous searches for references.
* lisp/progmodes/xref.el (xref-match-item): Change type for
:location from `xref-file-location`, which was likely a mistake,
to `xref-location`. This allows `xref-make-match` to take
arguments of any subtype of `xref-location` (bug#50067).
* lisp/progmodes/prog-mode.el (prog-context-menu):
Add xref operations to the context menu even if xref hasn't been
loaded yet; the functions involved are autoloaded (bug#50067).
* lisp/progmodes/project.el (project-buffers): New generic function.
(project--read-project-buffer): Use it here (bug#49264).
(project--buffers-to-kill): And here.
(project-buffers): Specialized implementation for vc-project.
* lisp/progmodes/cc-defs.el (c-tentative-buffer-changes)
(c-tnt-chng-record-state, c-tnt-chng-cleanup): Enhance such that a
buffer-undo-list of t is handled specially, so that a nil isn't consed onto
it. Thus garbage collection can't later remove the (nil . t) from the end of
the buffer-undo-list, causing an infinite loop.
* lisp/progmodes/xref.el (xref--next-error-function):
Bind `xref--current-item` during the call to `xref--show-location` so
that `xref-pulse-momentarily` finds the match extent.
This fixes bug #47468.
* lisp/progmodes/cc-engine.el (c-looking-at-inexpr-block): While searching
backwards for "->" which is a type indicating operator, disallow also commas.
Also optimize a loop over several line doc-comments.
* lisp/progmodes/cc-fonts.el (c-font-lock-doc-comments): New variable
comment-mid, used as the starting point for applying c-doc-face-name in a
line comments. In block comments, apply this face not from `comment-beg' but
from `region-beg', no earlier than the start of the fontification region.
* 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/grep.el (grep-compute-defaults):
Don't require "grep --help" to finish with exit status 0 (BSD grep
does not) and check the output in a slightly more robust way.
* lisp/progmodes/perl-mode.el: Handle variables first to avoid
conflicting with keywords. This fixes cases like "$package"
(bug#49906).
Copyright-paperwork-exempt: yes
* lisp/progmodes/project.el (project--completing-read-strict):
Allow to choose a non-existent file, with confirmation
(bug#49204).
Don't use the string at point as a "real" default, and instead
only include it in "future history": meaning, it will be inserted
on 'M-n' (bug#49865).
* lisp/emacs-lisp/cl-generic.el (cl-generic-generalizers): Evaluate
forms that are eql specializers. Provide backward compatibility
with a warning.
* test/lisp/emacs-lisp/cl-generic-tests.el: Add a test.
* lisp/emacs-lisp/bindat.el (bindat--type): Adhere to the new rule.
* lisp/emacs-lisp/edebug.el (edebug--match-&-spec-op): Adhere to the new rule.
* lisp/emacs-lisp/map.el (map-into): Adhere to the new rule.
* lisp/emacs-lisp/radix-tree.el (map-into): Adhere to the new rule.
* lisp/frame.el (cl-generic-define-context-rewriter): Adhere to the new rule.
* lisp/gnus/gnus-search.el
(gnus-search-transform-expression): Adhere to the new rule.
* lisp/image/image-converter.el
(image-converter--probe image-converter--convert): Adhere to the new rule.
* lisp/mail/smtpmail.el (smtpmail-try-auth-method): Adhere to the new rule.
* lisp/progmodes/elisp-mode.el
(xref-backend-definitions)
(xref-backend-apropos): Adhere to the new rule.
* lisp/progmodes/etags.el (xref-backend-identifier-at-point)
(xref-backend-identifier-completion-table)
(xref-backend-identifier-completion-ignore-case)
(xref-backend-definitions)(xref-backend-apropos): Adhere to the new rule.
* test/lisp/emacs-lisp/checkdoc-tests.el
(checkdoc-cl-defmethod-with-types-ok)
(checkdoc-cl-defmethod-qualified-ok)
(checkdoc-cl-defmethod-with-extra-qualifier-ok): Adhere to the new rule.
* etc/NEWS: Describe the change.