* lisp/help-mode.el (help-mode-syntax-table): New variable (bug#39134).
(help-make-xrefs): Use it to make picking out symbols in curved
quotes work reliably.
(help-xref-on-pp): Ditto.
* lisp/help-mode.el (help-mode-map): Remove key bindings for RET
and <mouse-2> (bug#49784).
(help-xref-stack, help-xref-forward-stack, help-xref-stack-item)
(help-make-xrefs): Fix doc strings -- these aren't used by
`help-follow', but by `help-follow-symbol'.
(help-follow-mouse, help-follow): Make obsolete.
* lisp/help-fns.el (describe-variable): Store the type.
* lisp/help-mode.el (help-view-source): Use the type. This fixes
the problem when looking for a variable defined in a C file.
* lisp/help-fns.el (describe-variable): Add a newline for better
readability (bug#46702). This also has the side effect of
buttonizing `function-references-like-this' in the "Its value is"
part.
* lisp/help-mode.el (help-make-xrefs): Adjust comments.
* lisp/emacs-lisp/lisp-mode.el (lisp-el-font-lock-keywords-2)
(lisp-cl-font-lock-keywords-2): Allow single-character symbol names.
* lisp/help-mode.el (help-xref-symbol-regexp): Also match symbol
names starting with symbol syntax (bug#6601, bug#24309).
* test/lisp/help-mode-tests.el (help-mode-tests-xref-button): Test
hyperlink creation for function names without symbol syntax.
* lisp/help-mode.el (help-mode-revert-buffer): Don't require
confirmation before reverting (bug#44202). This mimics how most
other non-file reverting functions work.
* lisp/help-mode.el: Use lexical-binding.
(help-mode-map, help-mode-menu, help-mode-setup)
(help-mode-finish): Make spelling of "Help mode" consistent throughout
the doc strings (also making it consistent with the spelling of "Help
mode" used in the Elisp manual).
(help-do-xref): Re-indent to make the else-branch easier to see.
* test/lisp/help-mode-tests.el: New file with tests for help-mode.el.
* lisp/help-mode.el (help-function-def--button-function): Factor
out into own function for easier reuse.
(help-function-def): ... from the lambda here.
* lisp/help-mode.el (help-bookmark-make-record): Replace buffer
objects with their names in help-args, otherwise the bookmark won't be
readable from the bookmark save file.
Restore lines saying "Maintainer: emacs-devel@gnu.org" when there is
no special maintainer for a file. Although this wasn't documented
it was common practice and removing the lines didn't have consensus.
(ert-describe-test): Return the description text as well.
Remove left over version check.
* lisp/help-mode.el (describe-symbol-backends): Add docstring.
63b04c11d5 Fix copyright years by hand
5c7dd8a783 Update copyright year to 2018
220a9ecba1 Merge from Gnulib
312c565566 Don't add empty keyboard macro to macro ring (Bug#24992)
39ca289a7a Allow customization of decoding of "man" command
f8240815ea * etc/NEWS: Add security consideration note on passphrase ...
0c78822c70 Fix subtle problem with scroll-down when scroll-margin is ...
acd289c5a4 Fix problems with indexing in User manual
b240c7846b * lisp/help.el (describe-key): Only (copy-sequence elt) wh...
e879a5444a * src/buffer.c (Frestore_buffer_modified_p): Fix bug#29846
81b1028b63 Improve documentation of 'inhibit-modification-hooks' and ...
7175496d7a Fix doc string of 'enable-recursive-minibuffers'
5b38406491 Fix documentation of delsel and of killing text
# Conflicts:
# etc/NEWS
# etc/refcards/ru-refcard.tex
find-function-search-for-symbol will reuse the existing buffer if
we've already opened the file that contains this symbol. However, if
the user has narrowed that buffer, we can't find definitions outside
the narrowed area.
Instead, search the whole file to find definitions, and teach the help
buttons to widen if necessary.
* lisp/emacs-lisp/find-func.el (find-function-search-for-symbol):
Search the whole buffer for the target symbol.
* lisp/help-mode.el: Help buttons now widen the target buffer, if
narrowing is in effect and the target position is not in that range.
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.
* lisp/faces.el (describe-face): Return (buffer-string). Reorder
the placement of variables/faces in describe-symbol, to put more
emphasis on the variable entry rather than the face. (Bug#24543)
Also make *Help* links to ``' possible. Also make usable as such doc strings
on the function-documentation property of a symbol.
* lisp/emacs-lisp/backquote.el (top-level): Give , and '@ doc strings on the
function-documentation property. Also give these symbols a reader-construct
property.
* lisp/help-fns.el (describe-function): Allow the function-documentation
property to work. Use princ rather than prin1 to print the function's name
when it has a reader-construct property.
(help-fns-signature): Don't insert `high-usage' for a reader-construct.
(describe-function-1): Adapt to process documentation on the
function-documentation property. Print "a reader construct" when appropriate.
* lisp/help-mode.el (help-xref-symbol-regexp): Amend this regexp also to match
``'.
* lisp/emacs-lisp/find-func.el (find-library):
* lisp/help-mode.el (help-function-def, help-variable-def):
Run `find-function-after-hook' inside the help-function of the
buttons (bug#22583).
* etc/NEWS: Mention the change.
This is a backport from master.
(cherry picked from commit f069d85450)
