* lisp/textmodes/css-mode.el (css--join-nested-selectors)
(css--prev-index-position, css--extract-index-name): New helper
functions for supporting Imenu.
(css-mode): Set `imenu-space-replacement',
`imenu-prev-index-position-function', and
`imenu-extract-index-name-function'.
(css-current-defun-name): Reuse `css--prev-index-position' and
`css--extract-index-name' to support nested selectors.

* test/lisp/textmodes/css-mode-tests.el (css-test-current-defun-name):
Fix character index.
(css-test-join-nested-selectors): New tests for
`css--join-nested-selectors'.

* etc/NEWS: Add news entry.

To be able to use text in an HTML argument, quotation marks need
to be replaced with an appropriate character reference.  Make
‘sgml-quote’ do that.

While at it, fix entiteis not being unquoted if they lack closing
semicolon (e.g. ‘&amp’) occuring at the very end of a region.
Even though unlikely, make ‘sgml-quote’ handle this scenario.

* lisp/textmodes/sgml-mode.el (sgml-quote): Handle quotation marks and
apostrophes.  Match entities lacking semicolon at the end of regions.
* test/lisp/textmodes/sgml-mode-tests.el (sgml-quote-works): New test
case for ‘sgml-quote’ function.

0276743 (origin/emacs-26) Doc string fix in latin-alt.el
c9269af Minor improvements in package.texi
898a3e4 Minor improvement in Emacs user manual
8f7d718 * doc/lispref/anti.texi (Antinews): Replace 25.2 with 25.3.
989d0af Improve documentation of mini-window resizing
923e415 More changes in the Emacs manual
565adf2 Clarify that text-quoting-style doesn't affect *Info* (Bug#24...
2dd273b Mention that shell quoting of % on w32 may fail (Bug#19350)
19fa6d5 Fix --no-build-details for w32 and macOS
979944c * doc/lispref/anti.texi (Antinews): Add some more antinews.
c2727e3 Fix crashes when run with --no-build-details
dc08490 More changes for the manual
04c5bd5 Doc fixes for process functions (Bug#30349)
e209034 Fix shr and CSS 4 color maps
5fe8192 Yet another round of improvements in the manual

Conflicts:
	doc/emacs/files.texi
	test/lisp/subr-tests.el

* lisp/net/shr-color.el (shr-color-html-colors-alist): Fix typos.
Add RebeccaPurple.
* lisp/textmodes/css-mode.el (css--color-map): Add fuchsia-magenta
and aqua-cyan aliases.
* test/lisp/textmodes/css-mode-tests.el (css-test-property-values):
Bump color count.

* lisp/textmodes/css-mode.el (css--format-hex): New function for
shortening CSS hex colors when possible.
(css--named-color-to-hex, css--rgb-to-named-color-or-hex): Use it.

* test/lisp/textmodes/css-mode-tests.el (css-test-format-hex): New
tests for 'css--format-hex'.
(css-test-named-color-to-hex, css-test-cycle-color-format): Adjust for
the changes to 'css--named-color-to-hex' and
'css--rgb-to-named-color-or-hex'.

* lisp/textmodes/css-mode.el (css--hex-to-rgb): Fix off-by-one error.

* test/lisp/textmodes/css-mode-tests.el (css-test-hex-to-rgb): Add
regression tests for the above fix.

* lisp/textmodes/css-mode.el (css--rgb-color): Support parsing percent
values in the alpha component.

* test/lisp/textmodes/css-mode-tests.el
(css-test-rgb-to-named-color-or-hex, css-test-rgb-parser): Update for
the above changes.

* test/lisp/textmodes/fill-tests.el:
(fill-test-no-fill-polish-nobreak-p): New test