Generate colors' keywords for web-mode.el

generate-colors-keywords-for-web-mode.el

;; Get colors' keywords from w3 wiki into an alist ( keyword . hex )
(require 'dom)
(setq-local
 colorlist
 (with-current-buffer
     (url-retrieve-synchronously
      "https://www.w3.org/wiki/CSS3/Color/Extended_color_keywords")
   (goto-char (point-min))
   (re-search-forward "^$")
   (delete-region (point) (point-min))
   (setq-local dom (libxml-parse-html-region (point-min) (point-max)))
   (dom-by-tag (dom-by-tag dom 'table) 'tr)))

;; Create alist
(setq-local colors-alist (cl-loop
 for value in (remove (car colorlist) colorlist)
 collect (cons (dom-texts (car (nthcdr 0 (dom-by-tag value 'td))))
               (dom-texts (car (nthcdr 1 (dom-by-tag value 'td)))))))

;; Output to a temp buffer
(with-output-to-temp-buffer "*css-colors-keywords-alist*"
  (pp (mapcar (lambda (element)
            (let ((key (cdr element))
                  (value (car element)))
              (cons value key)))
          colors-alist)))

;; Formated output
(("aliceblue" . "#F0F8FF")
 ("antiquewhite" . "#FAEBD7")
 ("aqua" . "#00FFFF")
 ("aquamarine" . "#7FFFD4")
 ("azure" . "#F0FFFF")
 ("beige" . "#F5F5DC")
 ("bisque" . "#FFE4C4")
 ("black" . "#000000")
 ("blanchedalmond" . "#FFEBCD")
 ("blue" . "#0000FF")
 ("blueviolet" . "#8A2BE2")
 ("brown" . "#A52A2A")
 ("burlywood" . "#DEB887")
 ("cadetblue" . "#5F9EA0")
 ("chartreuse" . "#7FFF00")
 ("chocolate" . "#D2691E")
 ("coral" . "#FF7F50")
 ("cornflowerblue" . "#6495ED")
 ("cornsilk" . "#FFF8DC")
 ("crimson" . "#DC143C")
 ("cyan" . "#00FFFF")
 ("darkblue" . "#00008B")
 ("darkcyan" . "#008B8B")
 ("darkgoldenrod" . "#B8860B")
 ("darkgray" . "#A9A9A9")
 ("darkgreen" . "#006400")
 ("darkgrey" . "#A9A9A9")
 ("darkkhaki" . "#BDB76B")
 ("darkmagenta" . "#8B008B")
 ("darkolivegreen" . "#556B2F")
 ("darkorange" . "#FF8C00")
 ("darkorchid" . "#9932CC")
 ("darkred" . "#8B0000")
 ("darksalmon" . "#E9967A")
 ("darkseagreen" . "#8FBC8F")
 ("darkslateblue" . "#483D8B")
 ("darkslategray" . "#2F4F4F")
 ("darkslategrey" . "#2F4F4F")
 ("darkturquoise" . "#00CED1")
 ("darkviolet" . "#9400D3")
 ("deeppink" . "#FF1493")
 ("deepskyblue" . "#00BFFF")
 ("dimgray" . "#696969")
 ("dimgrey " . "#696969")
 ("dodgerblue" . "#1E90FF")
 ("firebrick" . "#B22222")
 ("floralwhite" . "#FFFAF0")
 ("forestgreen" . "#228B22")
 ("fuchsia" . "#FF00FF")
 ("gainsboro" . "#DCDCDC")
 ("ghostwhite" . "#F8F8FF")
 ("gold" . "#FFD700")
 ("goldenrod" . "#DAA520")
 ("gray" . "#808080")
 ("green" . "#008000")
 ("greenyellow" . "#ADFF2F")
 ("grey" . "#808080")
 ("honeydew" . "#F0FFF0")
 ("hotpink" . "#FF69B4")
 ("indianred" . "#CD5C5C")
 ("indigo" . "#4B0082")
 ("ivory" . "#FFFFF0")
 ("khaki" . "#F0E68C")
 ("lavender" . "#E6E6FA")
 ("lavenderblush" . "#FFF0F5")
 ("lawngreen" . "#7CFC00")
 ("lemonchiffon" . "#FFFACD")
 ("lightblue" . "#ADD8E6")
 ("lightcoral" . "#F08080")
 ("lightcyan" . "#E0FFFF")
 ("lightgoldenrodyellow" . "#FAFAD2")
 ("lightgray" . "#D3D3D3")
 ("lightgreen" . "#90EE90")
 ("lightgrey" . "#D3D3D3")
 ("lightpink" . "#FFB6C1")
 ("lightsalmon" . "#FFA07A")
 ("lightseagreen" . "#20B2AA")
 ("lightskyblue" . "#87CEFA")
 ("lightslategray" . "#778899")
 ("lightslategrey" . "#778899")
 ("lightsteelblue" . "#B0C4DE")
 ("lightyellow" . "#FFFFE0")
 ("lime" . "#00FF00")
 ("limegreen" . "#32CD32")
 ("linen" . "#FAF0E6")
 ("magenta" . "#FF00FF")
 ("maroon" . "#800000")
 ("mediumaquamarine" . "#66CDAA")
 ("mediumblue" . "#0000CD")
 ("mediumorchid" . "#BA55D3")
 ("mediumpurple" . "#9370DB")
 ("mediumseagreen" . "#3CB371")
 ("mediumslateblue" . "#7B68EE")
 ("mediumspringgreen" . "#00FA9A")
 ("mediumturquoise" . "#48D1CC")
 ("mediumvioletred" . "#C71585")
 ("midnightblue" . "#191970")
 ("mintcream" . "#F5FFFA")
 ("mistyrose" . "#FFE4E1")
 ("moccasin" . "#FFE4B5")
 ("navajowhite" . "#FFDEAD")
 ("navy" . "#000080")
 ("oldlace" . "#FDF5E6")
 ("olive" . "#808000")
 ("olivedrab" . "#6B8E23")
 ("orange" . "#FFA500")
 ("orangered" . "#FF4500")
 ("orchid" . "#DA70D6")
 ("palegoldenrod" . "#EEE8AA")
 ("palegreen" . "#98FD98")
 ("paleturquoise" . "#AFEEEE")
 ("palevioletred" . "#DB7093")
 ("papayawhip" . "#FFEFD5")
 ("peachpuff" . "#FFDAB9")
 ("peru" . "#CD853F")
 ("pink" . "#FFC0CD")
 ("plum" . "#DDA0DD")
 ("powderblue" . "#B0E0E6")
 ("purple" . "#800080")
 ("red" . "#FF0000")
 ("rosybrown" . "#BC8F8F")
 ("royalblue" . "#4169E1")
 ("saddlebrown" . "#8B4513")
 ("salmon" . "#FA8072")
 ("sandybrown" . "#F4A460")
 ("seagreen" . "#2E8B57")
 ("seashell" . "#FFF5EE")
 ("sienna" . "#A0522D")
 ("silver" . "#C0C0C0")
 ("skyblue" . "#87CEEB")
 ("slateblue" . "#6A5ACD")
 ("slategray" . "#708090")
 ("slategrey" . "#708090")
 ("snow" . "#FFFAFA")
 ("springgreen" . "#00FF7F")
 ("steelblue" . "#4682B4")
 ("tan" . "#D2B48C")
 ("teal" . "#008080")
 ("thistle" . "#D8BFD8")
 ("tomato" . "#FF6347")
 ("turquoise" . "#40E0D0")
 ("saddlebrown" . "#8B4513")
 ("violet" . "#EE82EE")
 ("wheat" . "#F5DEB3")
 ("white" . "#FFFFFF")
 ("whitesmoke" . "#F5F5F5")
 ("yellow" . "#FFFF00")
 ("yellowgreen" . "#9ACD32"))