This replaces open coded versions of the common idiom
(not (eq (gethash key table 'missing) 'missing))
with
(hash-table-contains-p key table)
in files where we can rely on features in Emacs 31.
* lisp/emacs-lisp/map.el (map-contains-key):
* lisp/external-completion.el (external-completion-table):
* lisp/mh-e/mh-utils.el (mh-sub-folders)
(mh-remove-from-sub-folders-cache):
* lisp/net/ange-ftp.el (ange-ftp-hash-entry-exists-p):
* lisp/password-cache.el (password-in-cache-p, password-cache-add):
* lisp/pcmpl-x.el (pcmpl-x-tlmgr-action-options):
* lisp/xdg.el (xdg-mime-apps): Use 'hash-table-contains-p'.
* lisp/pcomplete.el (pcomplete-from-help): New function (and hash
table) to get pcomplete candidates from help messages.
(pcomplete-here-using-help): Helper function to define pcomplete for
simple commands
(pcomplete-completions-at-point): Provide annotation-function and
company-docsig properties.
* lisp/pcmpl-git.el: New file, provides pcomplete for Git.
* lisp/pcmpl-gnu.el: Add pcomplete for awk, gpg and gdb, emacs and
emacsclient.
* lisp/pcmpl-linux.el: Add pcomplete for systemctl and journalctl.
* lisp/pcmpl-rpm.el: Add pcomplete for dnf.
* lisp/pcmpl-unix.el: Add pcomplete for sudo and most commands found
in GNU Coreutils.
* lisp/pcmpl-x.el: Add pcomplete for tex, pdftex, latex, pdflatex,
rigrep and rclone.
* test/lisp/pcomplete-tests.el (pcomplete-test-parse-gpg-help,
pcomplete-test-parse-git-help): Tests for the new functions.
* lisp/speedbar.el: Use lexical-binding.
(speedbar-with-writable): Use `declare`.
* lisp/subr.el (def-edebug-spec): Use `declare`.
* lisp/cedet/ede/base.el: Use lexical-binding.
(ede-with-projectfile): Use `declare`.
(recentf-exclude): Declare var.
* lisp/cedet/ede/pmake.el: Use lexical-binding.
(ede-pmake-insert-variable-shared, ede-pmake-insert-variable-once):
Use `declare`.
* lisp/cedet/ede/proj-comp.el: Use lexical-binding.
(ede-compiler-begin-unique, ede-compiler-only-once)
(ede-linker-begin-unique, ede-linker-only-once): Use `declare`.
* lisp/cedet/semantic/ctxt.el: Use lexical-binding.
(semantic-with-buffer-narrowed-to-context)
(semantic-with-buffer-narrowed-to-command): Use `declare`.
(semantic--progress-reporter): Declare var.
(semantic-ctxt-end-of-symbol-default): Remove unused var `fieldsep`.
* lisp/cedet/semantic/lex-spp.el: Use lexical-binding.
(define-lex-spp-macro-declaration-analyzer)
(define-lex-spp-include-analyzer, semantic-lex-with-macro-used)
(define-lex-spp-macro-undeclaration-analyzer): Use `declare`.
(semantic-lex-spp-symbol-remove): Rename arg to avoid colliding with
dynamic variable `obarray`.
(semantic-lex-spp-symbol-pop): Remove unused var `oldvalue`.
(semantic-lex-spp-lex-text-string): Remove unused var `analyzer`.
* lisp/cedet/semantic/lex.el (define-lex)
(semantic-lex-unterminated-syntax-protection, define-lex-analyzer)
(define-lex-regex-analyzer, define-lex-block-analyzer)
(semantic-lex-catch-errors): Use `declare`.
* lisp/cedet/semantic/tag.el: Use lexical-binding.
(semantic-with-buffer-narrowed-to-current-tag)
(semantic-with-buffer-narrowed-to-tag): Use `declare`.
* lisp/cedet/semantic/wisent.el: Use lexical-binding.
(define-wisent-lexer): Use `declare`.
* lisp/emacs-lisp/cl-lib.el (cl-pushnew): The arg to :test can be any
form not just function form.
* lisp/org/ob-comint.el (org-babel-comint-in-buffer)
(org-babel-comint-with-output): Use `declare`.
* lisp/org/ob-core.el (org-babel-map-src-blocks): Use `declare`.
(org-babel-result-cond): Simplify edebug spec.
* lisp/org/org-clock.el (org-with-clock-position, org-with-clock):
* lisp/org/org-agenda.el (org-agenda-with-point-at-orig-entry):
* lisp/org/ob-tangle.el (org-babel-with-temp-filebuffer): Use `declare`.
* lisp/textmodes/rst.el (push): Remove redundant edebug spec.
* lisp/vc/pcvs-parse.el: Use lexical-binding.
(cvs-parse-buffer): Rename arg to avoid dynbound conflict.
(cvs-or): Use `declare`.
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
