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/color.el (color-name-to-rgb, color-complement): Clarify in
docstrings that RGB triplets should use four digits per component.
(color-rgb-to-hsl): Break line to avoid "Hidden behind deeper element"
warning.
* test/lisp/color-tests.el: New file.
* lisp/color.el (color-name-to-rgb): Use 16 bits per color component.
(color-rgb-to-hex): Accept an optional argument
DIGITS-PER-COMPONENT, defaulting to 4, and format the hexadecimal
notation either for 8 or 16 bits per component. (Bug#25890)
* lisp/net/shr-color.el (shr-color->hexadecimal): Call
color-rgb-to-hex with the optional argument of 2, to match color
processing on the Web.
This is more compatible with Common Lisp and XEmacs (Bug#21690). See:
http://lists.gnu.org/archive/html/emacs-devel/2015-10/msg01053.html
* lisp/color.el (color-hue-to-rgb, color-hsl-to-rgb)
(color-xyz-to-srgb, color-xyz-to-lab):
* lisp/emacs-lisp/cl-extra.el (cl-float-limits):
* lisp/net/shr-color.el (shr-color-hue-to-rgb)
(shr-color-hsl-to-rgb-fractions):
Exploit the change to simplify the code a bit.
* lisp/emacs-lisp/bytecomp.el (byte-compile-quo):
Don’t complain about single-argument calls to ‘/’.
* src/data.c (arith_driver, float_arith_driver):
Implement the change.
* lisp/erc/erc-track.el, lisp/erc/erc-networks.el, lisp/erc/erc-netsplit.el:
* lisp/erc/erc-dcc.el, lisp/erc/erc-backend.el: Use cl-lib, nth, pcase, and
called-interactively-p instead of cl.
* lisp/erc/erc-speedbar.el, lisp/erc/erc-services.el:
* lisp/erc/erc-pcomplete.el, lisp/erc/erc-notify.el, lisp/erc/erc-match.el:
* lisp/erc/erc-log.el, lisp/erc/erc-join.el, lisp/erc/erc-ezbounce.el:
* lisp/erc/erc-capab.el: Don't require cl since we don't use it.
* lisp/erc/erc.el: Use cl-lib, nth, pcase, and called-interactively-p i.s.o cl.
(erc-lurker-ignore-chars, erc-common-server-suffixes): Move before first use.
* lisp/json.el: Don't require cl since we don't use it.
* lisp/color.el: Don't require cl.
(color-complement): `caddr' -> `nth 2'.
* test/automated/ert-x-tests.el: Use cl-lib.
* test/automated/ert-tests.el: Use lexical-binding and cl-lib.
Prefer pcase-let over destructuring-bind.
* lisp/vc/diff-mode.el (diff-remove-trailing-whitespace): Same.
Also, remove whitespace as we go, rather than after accumulating the
various places.
* lisp/color.el (color-name-to-rgb): Rename from color-rgb->normalize.
Autoload. Add optional arg FRAME, and pass it to color-values.
(color-complement): Caller changed. Doc fix.
(color-gradient): Rewrite for better clarity and efficiency.
(color-rgb-to-hex): Rename from color-rgb->hex.
(color-rgb-to-hsv): Rename from color-rgb->hsv. Force hue and
saturation to zero if the value is too small.
(color-rgb-to-hsl): Rename from color-rgb->hsl.
(color-srgb-to-xyz): Rename from color-srgb->xyz. Doc fix.
(color-xyz-to-srgb): Rename from color-xyz->srgb. Doc fix.
(color-xyz-to-lab): Rename from color-xyz->lab. Doc fix.
(color-lab-to-xyz): Rename from color-lab->xyz. Doc fix.
(color-lab-to-srgb): Rename from color-lab->srgb. Doc fix.
(color-cie-de2000): Doc fix.
* lisp/facemenu.el (color-rgb-to-hsv): Deleted; use the version in
lisp/color.el instead.
(list-colors-sort-key, list-colors-print): Use
color-normalized-values.
* lisp/faces.el (color-values): Use cond for clarity. Doc fix.
* lisp/gnus/shr-color.el (shr-color->hexadecimal): Use renamed
function names color-rgb-to-hex, color-name-to-rgb,
color-srgb-to-lab, and color-lab-to-srgb.
mm-decode.el (mm-inline-media-tests): Do not check for diff-mode it's standard in Emacs nowadays.
color.el (color-gradient): Add a color-gradient function.
