447 lines
19 KiB
EmacsLisp
447 lines
19 KiB
EmacsLisp
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;;; company-css.el --- company-mode completion backend for css-mode -*- lexical-binding: t -*-
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;; Copyright (C) 2009, 2011, 2014, 2018 Free Software Foundation, Inc.
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;; Author: Nikolaj Schumacher
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; In Emacs >= 26, company-capf is used instead.
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;;; Code:
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(require 'company)
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(require 'cl-lib)
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(declare-function web-mode-language-at-pos "web-mode" (&optional pos))
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(defconst company-css-property-alist
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;; see http://www.w3.org/TR/CSS21/propidx.html
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'(("azimuth" angle "left-side" "far-left" "left" "center-left" "center"
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"center-right" "right" "far-right" "right-side" "behind" "leftwards"
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"rightwards")
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("background" background-color background-image background-repeat
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background-attachment background-position
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background-clip background-origin background-size)
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("background-attachment" "scroll" "fixed")
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("background-color" color "transparent")
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("background-image" uri "none")
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("background-position" percentage length "left" "center" "right" percentage
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length "top" "center" "bottom" "left" "center" "right" "top" "center"
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"bottom")
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("background-repeat" "repeat" "repeat-x" "repeat-y" "no-repeat")
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("border" border-width border-style border-color)
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("border-bottom" border)
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("border-bottom-color" border-color)
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("border-bottom-style" border-style)
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("border-bottom-width" border-width)
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("border-collapse" "collapse" "separate")
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("border-color" color "transparent")
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("border-left" border)
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("border-left-color" border-color)
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("border-left-style" border-style)
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("border-left-width" border-width)
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("border-right" border)
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("border-right-color" border-color)
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("border-right-style" border-style)
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("border-right-width" border-width)
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("border-spacing" length length)
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("border-style" border-style)
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("border-top" border)
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("border-top-color" border-color)
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("border-top-style" border-style)
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("border-top-width" border-width)
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("border-width" border-width)
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("bottom" length percentage "auto")
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("caption-side" "top" "bottom")
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("clear" "none" "left" "right" "both")
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("clip" shape "auto")
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("color" color)
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("content" "normal" "none" string uri counter "attr()" "open-quote"
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"close-quote" "no-open-quote" "no-close-quote")
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("counter-increment" identifier integer "none")
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("counter-reset" identifier integer "none")
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("cue" cue-before cue-after)
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("cue-after" uri "none")
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("cue-before" uri "none")
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("cursor" uri "*" "auto" "crosshair" "default" "pointer" "move" "e-resize"
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"ne-resize" "nw-resize" "n-resize" "se-resize" "sw-resize" "s-resize"
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"w-resize" "text" "wait" "help" "progress")
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("direction" "ltr" "rtl")
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("display" "inline" "block" "list-item" "run-in" "inline-block" "table"
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"inline-table" "table-row-group" "table-header-group" "table-footer-group"
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"table-row" "table-column-group" "table-column" "table-cell"
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"table-caption" "none")
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("elevation" angle "below" "level" "above" "higher" "lower")
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("empty-cells" "show" "hide")
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("float" "left" "right" "none")
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("font" font-style font-weight font-size "/" line-height
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font-family "caption" "icon" "menu" "message-box" "small-caption"
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"status-bar" "normal" "small-caps"
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;; CSS3
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font-stretch)
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("font-family" family-name generic-family)
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("font-size" absolute-size relative-size length percentage)
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("font-style" "normal" "italic" "oblique")
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("font-weight" "normal" "bold" "bolder" "lighter" "100" "200" "300" "400"
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"500" "600" "700" "800" "900")
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("height" length percentage "auto")
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("left" length percentage "auto")
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("letter-spacing" "normal" length)
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("line-height" "normal" number length percentage)
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("list-style" list-style-type list-style-position list-style-image)
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("list-style-image" uri "none")
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("list-style-position" "inside" "outside")
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("list-style-type" "disc" "circle" "square" "decimal" "decimal-leading-zero"
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"lower-roman" "upper-roman" "lower-greek" "lower-latin" "upper-latin"
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"armenian" "georgian" "lower-alpha" "upper-alpha" "none")
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("margin" margin-width)
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("margin-bottom" margin-width)
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("margin-left" margin-width)
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("margin-right" margin-width)
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("margin-top" margin-width)
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("max-height" length percentage "none")
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("max-width" length percentage "none")
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("min-height" length percentage)
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("min-width" length percentage)
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("orphans" integer)
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("outline" outline-color outline-style outline-width)
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("outline-color" color "invert")
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("outline-style" border-style)
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("outline-width" border-width)
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("overflow" "visible" "hidden" "scroll" "auto"
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;; CSS3:
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"no-display" "no-content")
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("padding" padding-width)
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("padding-bottom" padding-width)
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("padding-left" padding-width)
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("padding-right" padding-width)
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("padding-top" padding-width)
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("page-break-after" "auto" "always" "avoid" "left" "right")
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("page-break-before" "auto" "always" "avoid" "left" "right")
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("page-break-inside" "avoid" "auto")
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("pause" time percentage)
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("pause-after" time percentage)
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("pause-before" time percentage)
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("pitch" frequency "x-low" "low" "medium" "high" "x-high")
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("pitch-range" number)
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("play-during" uri "mix" "repeat" "auto" "none")
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("position" "static" "relative" "absolute" "fixed")
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("quotes" string string "none")
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("richness" number)
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("right" length percentage "auto")
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("speak" "normal" "none" "spell-out")
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("speak-header" "once" "always")
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("speak-numeral" "digits" "continuous")
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("speak-punctuation" "code" "none")
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("speech-rate" number "x-slow" "slow" "medium" "fast" "x-fast" "faster"
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"slower")
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("stress" number)
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("table-layout" "auto" "fixed")
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("text-align" "left" "right" "center" "justify")
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("text-indent" length percentage)
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("text-transform" "capitalize" "uppercase" "lowercase" "none")
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("top" length percentage "auto")
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("unicode-bidi" "normal" "embed" "bidi-override")
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("vertical-align" "baseline" "sub" "super" "top" "text-top" "middle"
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"bottom" "text-bottom" percentage length)
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("visibility" "visible" "hidden" "collapse")
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("voice-family" specific-voice generic-voice "*" specific-voice
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generic-voice)
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("volume" number percentage "silent" "x-soft" "soft" "medium" "loud"
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"x-loud")
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("white-space" "normal" "pre" "nowrap" "pre-wrap" "pre-line")
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("widows" integer)
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("width" length percentage "auto")
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("word-spacing" "normal" length)
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("z-index" "auto" integer)
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;; CSS3
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("align-content" align-stretch "space-between" "space-around")
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("align-items" align-stretch "baseline")
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("align-self" align-items "auto")
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("animation" animation-name animation-duration animation-timing-function
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animation-delay animation-iteration-count animation-direction
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animation-fill-mode)
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("animation-delay" time)
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("animation-direction" "normal" "reverse" "alternate" "alternate-reverse")
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("animation-duration" time)
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("animation-fill-mode" "none" "forwards" "backwards" "both")
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("animation-iteration-count" integer "infinite")
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("animation-name" "none")
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("animation-play-state" "paused" "running")
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("animation-timing-function" transition-timing-function
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"step-start" "step-end" "steps(,)")
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("backface-visibility" "visible" "hidden")
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("background-clip" background-origin)
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("background-origin" "border-box" "padding-box" "content-box")
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("background-size" length percentage "auto" "cover" "contain")
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("border-image" border-image-outset border-image-repeat border-image-source
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border-image-slice border-image-width)
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("border-image-outset" length)
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("border-image-repeat" "stretch" "repeat" "round" "space")
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("border-image-source" uri "none")
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("border-image-slice" length)
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("border-image-width" length percentage)
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("border-radius" length)
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("border-top-left-radius" length)
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("border-top-right-radius" length)
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("border-bottom-left-radius" length)
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("border-bottom-right-radius" length)
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("box-decoration-break" "slice" "clone")
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("box-shadow" length color)
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("box-sizing" "content-box" "border-box")
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("break-after" "auto" "always" "avoid" "left" "right" "page" "column"
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"avoid-page" "avoid-column")
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("break-before" break-after)
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("break-inside" "avoid" "auto")
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("columns" column-width column-count)
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("column-count" integer)
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("column-fill" "auto" "balance")
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("column-gap" length "normal")
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("column-rule" column-rule-width column-rule-style column-rule-color)
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("column-rule-color" color)
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("column-rule-style" border-style)
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("column-rule-width" border-width)
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("column-span" "all" "none")
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("column-width" length "auto")
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("filter" url "blur()" "brightness()" "contrast()" "drop-shadow()"
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"grayscale()" "hue-rotate()" "invert()" "opacity()" "saturate()" "sepia()")
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("flex" flex-grow flex-shrink flex-basis)
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("flex-basis" percentage length "auto")
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("flex-direction" "row" "row-reverse" "column" "column-reverse")
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("flex-flow" flex-direction flex-wrap)
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("flex-grow" number)
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("flex-shrink" number)
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("flex-wrap" "nowrap" "wrap" "wrap-reverse")
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("font-feature-setting" normal string number)
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("font-kerning" "auto" "normal" "none")
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("font-language-override" "normal" string)
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("font-size-adjust" "none" number)
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("font-stretch" "normal" "ultra-condensed" "extra-condensed" "condensed"
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"semi-condensed" "semi-expanded" "expanded" "extra-expanded" "ultra-expanded")
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("font-synthesis" "none" "weight" "style")
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("font-variant" font-variant-alternates font-variant-caps
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font-variant-east-asian font-variant-ligatures font-variant-numeric
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font-variant-position)
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("font-variant-alternates" "normal" "historical-forms" "stylistic()"
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"styleset()" "character-variant()" "swash()" "ornaments()" "annotation()")
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("font-variant-caps" "normal" "small-caps" "all-small-caps" "petite-caps"
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"all-petite-caps" "unicase" "titling-caps")
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("font-variant-east-asian" "jis78" "jis83" "jis90" "jis04" "simplified"
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"traditional" "full-width" "proportional-width" "ruby")
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("font-variant-ligatures" "normal" "none" "common-ligatures"
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"no-common-ligatures" "discretionary-ligatures" "no-discretionary-ligatures"
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"historical-ligatures" "no-historical-ligatures" "contextual" "no-contextual")
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("font-variant-numeric" "normal" "ordinal" "slashed-zero"
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"lining-nums" "oldstyle-nums" "proportional-nums" "tabular-nums"
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"diagonal-fractions" "stacked-fractions")
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("font-variant-position" "normal" "sub" "super")
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("hyphens" "none" "manual" "auto")
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("justify-content" align-common "space-between" "space-around")
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("line-break" "auto" "loose" "normal" "strict")
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("marquee-direction" "forward" "reverse")
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("marquee-play-count" integer "infinite")
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("marquee-speed" "slow" "normal" "fast")
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("marquee-style" "scroll" "slide" "alternate")
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("opacity" number)
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("order" number)
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("outline-offset" length)
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("overflow-x" overflow)
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("overflow-y" overflow)
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("overflow-style" "auto" "marquee-line" "marquee-block")
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("overflow-wrap" "normal" "break-word")
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("perspective" "none" length)
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("perspective-origin" percentage length "left" "center" "right" "top" "bottom")
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("resize" "none" "both" "horizontal" "vertical")
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("tab-size" integer length)
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("text-align-last" "auto" "start" "end" "left" "right" "center" "justify")
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("text-decoration" text-decoration-color text-decoration-line text-decoration-style)
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("text-decoration-color" color)
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("text-decoration-line" "none" "underline" "overline" "line-through" "blink")
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("text-decoration-style" "solid" "double" "dotted" "dashed" "wavy")
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("text-overflow" "clip" "ellipsis")
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("text-shadow" color length)
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("text-underline-position" "auto" "under" "left" "right")
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("transform" "matrix(,,,,,)" "translate(,)" "translateX()" "translateY()"
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"scale()" "scaleX()" "scaleY()" "rotate()" "skewX()" "skewY()" "none")
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("transform-origin" perspective-origin)
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("transform-style" "flat" "preserve-3d")
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("transition" transition-property transition-duration
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transition-timing-function transition-delay)
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("transition-delay" time)
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("transition-duration" time)
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("transition-timing-function"
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"ease" "linear" "ease-in" "ease-out" "ease-in-out" "cubic-bezier(,,,)")
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("transition-property" "none" "all" identifier)
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("word-wrap" overflow-wrap)
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("word-break" "normal" "break-all" "keep-all"))
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"A list of CSS properties and their possible values.")
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(defconst company-css-value-classes
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'((absolute-size "xx-small" "x-small" "small" "medium" "large" "x-large"
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"xx-large")
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(align-common "flex-start" "flex-end" "center")
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(align-stretch align-common "stretch")
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(border-style "none" "hidden" "dotted" "dashed" "solid" "double" "groove"
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"ridge" "inset" "outset")
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(border-width "thick" "medium" "thin")
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(color "aqua" "black" "blue" "fuchsia" "gray" "green" "lime" "maroon" "navy"
|
||
|
|
"olive" "orange" "purple" "red" "silver" "teal" "white" "yellow")
|
||
|
|
(counter "counter(,)")
|
||
|
|
(family-name "Courier" "Helvetica" "Times")
|
||
|
|
(generic-family "serif" "sans-serif" "cursive" "fantasy" "monospace")
|
||
|
|
(generic-voice "male" "female" "child")
|
||
|
|
(margin-width "auto") ;; length percentage
|
||
|
|
(relative-size "larger" "smaller")
|
||
|
|
(shape "rect(,,,)")
|
||
|
|
(uri "url()"))
|
||
|
|
"A list of CSS property value classes and their contents.")
|
||
|
|
;; missing, because not completable
|
||
|
|
;; <angle><frequency><identifier><integer><length><number><padding-width>
|
||
|
|
;; <percentage><specific-voice><string><time><uri>
|
||
|
|
|
||
|
|
(defconst company-css-html-tags
|
||
|
|
'("a" "abbr" "acronym" "address" "applet" "area" "b" "base" "basefont" "bdo"
|
||
|
|
"big" "blockquote" "body" "br" "button" "caption" "center" "cite" "code"
|
||
|
|
"col" "colgroup" "dd" "del" "dfn" "dir" "div" "dl" "dt" "em" "fieldset"
|
||
|
|
"font" "form" "frame" "frameset" "h1" "h2" "h3" "h4" "h5" "h6" "head" "hr"
|
||
|
|
"html" "i" "iframe" "img" "input" "ins" "isindex" "kbd" "label" "legend"
|
||
|
|
"li" "link" "map" "menu" "meta" "noframes" "noscript" "object" "ol"
|
||
|
|
"optgroup" "option" "p" "param" "pre" "q" "s" "samp" "script" "select"
|
||
|
|
"small" "span" "strike" "strong" "style" "sub" "sup" "table" "tbody" "td"
|
||
|
|
"textarea" "tfoot" "th" "thead" "title" "tr" "tt" "u" "ul" "var"
|
||
|
|
;; HTML5
|
||
|
|
"section" "article" "aside" "header" "footer" "nav" "figure" "figcaption"
|
||
|
|
"time" "mark" "main")
|
||
|
|
"A list of HTML tags for use in CSS completion.")
|
||
|
|
|
||
|
|
(defconst company-css-pseudo-classes
|
||
|
|
'("active" "after" "before" "first" "first-child" "first-letter" "first-line"
|
||
|
|
"focus" "hover" "lang" "left" "link" "right" "visited")
|
||
|
|
"Identifiers for CSS pseudo-elements and pseudo-classes.")
|
||
|
|
|
||
|
|
(defconst company-css-property-cache (make-hash-table :size 115 :test 'equal))
|
||
|
|
|
||
|
|
(defun company-css-property-values (attribute)
|
||
|
|
"Access the `company-css-property-alist' cached and flattened."
|
||
|
|
(or (gethash attribute company-css-property-cache)
|
||
|
|
(let (results)
|
||
|
|
(dolist (value (cdr (assoc attribute company-css-property-alist)))
|
||
|
|
(if (symbolp value)
|
||
|
|
(dolist (child (or (cdr (assoc value company-css-value-classes))
|
||
|
|
(company-css-property-values
|
||
|
|
(symbol-name value))))
|
||
|
|
(push child results))
|
||
|
|
(push value results)))
|
||
|
|
(setq results (sort results 'string<))
|
||
|
|
(puthash attribute
|
||
|
|
(if (fboundp 'delete-consecutive-dups)
|
||
|
|
(delete-consecutive-dups results)
|
||
|
|
(delete-dups results))
|
||
|
|
company-css-property-cache)
|
||
|
|
results)))
|
||
|
|
|
||
|
|
;;; bracket detection
|
||
|
|
|
||
|
|
(defconst company-css-braces-syntax-table
|
||
|
|
(let ((table (make-syntax-table)))
|
||
|
|
(setf (aref table ?{) '(4 . 125))
|
||
|
|
(setf (aref table ?}) '(5 . 123))
|
||
|
|
table)
|
||
|
|
"A syntax table giving { and } paren syntax.")
|
||
|
|
|
||
|
|
(defun company-css-inside-braces-p ()
|
||
|
|
"Return non-nil, if point is within matched { and }."
|
||
|
|
(ignore-errors
|
||
|
|
(with-syntax-table company-css-braces-syntax-table
|
||
|
|
(let ((parse-sexp-ignore-comments t))
|
||
|
|
(scan-lists (point) -1 1)))))
|
||
|
|
|
||
|
|
;;; tags
|
||
|
|
(defconst company-css-tag-regexp
|
||
|
|
(concat "\\(?:\\`\\|}\\)[[:space:]]*"
|
||
|
|
;; multiple
|
||
|
|
"\\(?:"
|
||
|
|
;; previous tags:
|
||
|
|
"\\(?:#\\|\\_<[[:alpha:]]\\)[[:alnum:]-#]*\\(?:\\[[^]]*\\]\\)?"
|
||
|
|
;; space or selectors
|
||
|
|
"\\(?:[[:space:]]+\\|[[:space:]]*[+,>][[:space:]]*\\)"
|
||
|
|
"\\)*"
|
||
|
|
"\\(\\(?:#\\|\\_<[[:alpha:]]\\)\\(?:[[:alnum:]-#]*\\_>\\)?\\_>\\|\\)"
|
||
|
|
"\\=")
|
||
|
|
"A regular expression matching CSS tags.")
|
||
|
|
|
||
|
|
;;; pseudo id
|
||
|
|
(defconst company-css-pseudo-regexp
|
||
|
|
(concat "\\(?:\\`\\|}\\)[[:space:]]*"
|
||
|
|
;; multiple
|
||
|
|
"\\(?:"
|
||
|
|
;; previous tags:
|
||
|
|
"\\(?:#\\|\\_<[[:alpha:]]\\)[[:alnum:]-#]*\\(?:\\[[^]]*\\]\\)?"
|
||
|
|
;; space or delimiters
|
||
|
|
"\\(?:[[:space:]]+\\|[[:space:]]*[+,>][[:space:]]*\\)"
|
||
|
|
"\\)*"
|
||
|
|
"\\(?:\\(?:\\#\\|\\_<[[:alpha:]]\\)[[:alnum:]-#]*\\):"
|
||
|
|
"\\([[:alpha:]-]+\\_>\\|\\)\\_>\\=")
|
||
|
|
"A regular expression matching CSS pseudo classes.")
|
||
|
|
|
||
|
|
;;; properties
|
||
|
|
|
||
|
|
(defun company-css-grab-property ()
|
||
|
|
"Return the CSS property before point, if any.
|
||
|
|
Returns \"\" if no property found, but feasible at this position."
|
||
|
|
(when (company-css-inside-braces-p)
|
||
|
|
(company-grab-symbol)))
|
||
|
|
|
||
|
|
;;; values
|
||
|
|
(defconst company-css-property-value-regexp
|
||
|
|
"\\_<\\([[:alpha:]-]+\\):\\(?:[^{};]*[[:space:]]+\\)?\\([^{};]*\\_>\\|\\)\\="
|
||
|
|
"A regular expression matching CSS tags.")
|
||
|
|
|
||
|
|
;;;###autoload
|
||
|
|
(defun company-css (command &optional arg &rest ignored)
|
||
|
|
"`company-mode' completion backend for `css-mode'."
|
||
|
|
(interactive (list 'interactive))
|
||
|
|
(cl-case command
|
||
|
|
(interactive (company-begin-backend 'company-css))
|
||
|
|
(prefix (and (or (derived-mode-p 'css-mode)
|
||
|
|
(and (derived-mode-p 'web-mode)
|
||
|
|
(string= (web-mode-language-at-pos) "css")))
|
||
|
|
(or (company-grab company-css-tag-regexp 1)
|
||
|
|
(company-grab company-css-pseudo-regexp 1)
|
||
|
|
(company-grab company-css-property-value-regexp 2
|
||
|
|
(line-beginning-position))
|
||
|
|
(company-css-grab-property))))
|
||
|
|
(candidates
|
||
|
|
(cond
|
||
|
|
((company-grab company-css-tag-regexp 1)
|
||
|
|
(all-completions arg company-css-html-tags))
|
||
|
|
((company-grab company-css-pseudo-regexp 1)
|
||
|
|
(all-completions arg company-css-pseudo-classes))
|
||
|
|
((company-grab company-css-property-value-regexp 2
|
||
|
|
(line-beginning-position))
|
||
|
|
(all-completions arg
|
||
|
|
(company-css-property-values
|
||
|
|
(company-grab company-css-property-value-regexp 1))))
|
||
|
|
((company-css-grab-property)
|
||
|
|
(all-completions arg company-css-property-alist))))
|
||
|
|
(sorted t)))
|
||
|
|
|
||
|
|
(provide 'company-css)
|
||
|
|
;;; company-css.el ends here
|