rf-web/vendor/bundle/gems/rouge-3.12.0/lib/rouge/lexers/css.rb
2019-10-21 10:18:17 +02:00

275 lines
12 KiB
Ruby

# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
class CSS < RegexLexer
title "CSS"
desc "Cascading Style Sheets, used to style web pages"
tag 'css'
filenames '*.css'
mimetypes 'text/css'
identifier = /[a-zA-Z0-9_-]+/
number = /-?(?:[0-9]+(\.[0-9]+)?|\.[0-9]+)/
def self.attributes
@attributes ||= Set.new %w(
align-content align-items align-self alignment-adjust
alignment-baseline all anchor-point animation
animation-delay animation-direction animation-duration
animation-fill-mode animation-iteration-count animation-name
animation-play-state animation-timing-function appearance
azimuth backface-visibility background background-attachment
background-clip background-color background-image
background-origin background-position background-repeat
background-size baseline-shift binding bleed bookmark-label
bookmark-level bookmark-state bookmark-target border
border-bottom border-bottom-color border-bottom-left-radius
border-bottom-right-radius border-bottom-style
border-bottom-width border-collapse border-color
border-image border-image-outset border-image-repeat
border-image-slice border-image-source border-image-width
border-left border-left-color border-left-style
border-left-width border-radius border-right
border-right-color border-right-style border-right-width
border-spacing border-style border-top border-top-color
border-top-left-radius border-top-right-radius
border-top-style border-top-width border-width bottom
box-align box-decoration-break box-direction box-flex
box-flex-group box-lines box-ordinal-group box-orient
box-pack box-shadow box-sizing break-after break-before
break-inside caption-side clear clip clip-path
clip-rule color color-profile columns column-count
column-fill column-gap column-rule column-rule-color
column-rule-style column-rule-width column-span
column-width content counter-increment counter-reset
crop cue cue-after cue-before cursor direction display
dominant-baseline drop-initial-after-adjust
drop-initial-after-align drop-initial-before-adjust
drop-initial-before-align drop-initial-size
drop-initial-value elevation empty-cells filter fit
fit-position flex flex-basis flex-direction flex-flow
flex-grow flex-shrink flex-wrap float float-offset
font font-family font-feature-settings
font-kerning font-language-override font-size
font-size-adjust font-stretch font-style font-synthesis
font-variant font-variant-alternates font-variant-caps
font-variant-east-asian font-variant-ligatures
font-variant-numeric font-variant-position font-weight
grid-cell grid-column grid-column-align grid-column-sizing
grid-column-span grid-columns grid-flow grid-row
grid-row-align grid-row-sizing grid-row-span
grid-rows grid-template hanging-punctuation height
hyphenate-after hyphenate-before hyphenate-character
hyphenate-lines hyphenate-resource hyphens icon
image-orientation image-rendering image-resolution
ime-mode inline-box-align justify-content
left letter-spacing line-break line-height
line-stacking line-stacking-ruby line-stacking-shift
line-stacking-strategy list-style list-style-image
list-style-position list-style-type margin
margin-bottom margin-left margin-right margin-top
mark marker-offset marks mark-after mark-before
marquee-direction marquee-loop marquee-play-count
marquee-speed marquee-style mask max-height max-width
min-height min-width move-to nav-down
nav-index nav-left nav-right nav-up object-fit
object-position opacity order orphans outline
outline-color outline-offset outline-style
outline-width overflow overflow-style overflow-wrap
overflow-x overflow-y padding padding-bottom
padding-left padding-right padding-top
page page-break-after page-break-before
page-break-inside page-policy pause pause-after
pause-before perspective perspective-origin
phonemes pitch pitch-range play-during pointer-events
position presentation-level punctuation-trim quotes
rendering-intent resize rest rest-after rest-before
richness right rotation rotation-point ruby-align
ruby-overhang ruby-position ruby-span size speak
speak-as speak-header speak-numeral speak-punctuation
speech-rate src stress string-set
tab-size table-layout target target-name
target-new target-position text-align
text-align-last text-combine-horizontal
text-decoration text-decoration-color
text-decoration-line text-decoration-skip
text-decoration-style text-emphasis
text-emphasis-color text-emphasis-position
text-emphasis-style text-height text-indent
text-justify text-orientation text-outline
text-overflow text-rendering text-shadow
text-space-collapse text-transform
text-underline-position text-wrap top
transform transform-origin transform-style
transition transition-delay transition-duration
transition-property transition-timing-function
unicode-bidi vertical-align
visibility voice-balance voice-duration
voice-family voice-pitch voice-pitch-range
voice-range voice-rate voice-stress voice-volume
volume white-space widows width word-break
word-spacing word-wrap writing-mode z-index
)
end
def self.builtins
@builtins ||= Set.new %w(
above absolute always armenian aural auto avoid left bottom
baseline behind below bidi-override blink block bold bolder
both bottom capitalize center center-left center-right circle
cjk-ideographic close-quote collapse condensed continuous crop
cross crosshair cursive dashed decimal decimal-leading-zero
default digits disc dotted double e-resize embed expanded
extra-condensed extra-expanded fantasy far-left far-right fast
faster fixed georgian groove hebrew help hidden hide high higher
hiragana hiragana-iroha icon inherit inline inline-table inset
inside invert italic justify katakana katakana-iroha landscape
large larger left left-side leftwards level lighter line-through
list-item loud low lower lower-alpha lower-greek lower-roman
lowercase ltr medium message-box middle mix monospace n-resize
narrower ne-resize no-close-quote no-open-quote no-repeat none
normal nowrap nw-resize oblique once open-quote outset outside
overline pointer portrait px relative repeat repeat-x repeat-y
rgb ridge right right-side rightwards s-resize sans-serif scroll
se-resize semi-condensed semi-expanded separate serif show
silent slow slower small-caps small-caption smaller soft solid
spell-out square static status-bar super sw-resize table-caption
table-cell table-column table-column-group table-footer-group
table-header-group table-row table-row-group text text-bottom
text-top thick thin top transparent ultra-condensed
ultra-expanded underline upper-alpha upper-latin upper-roman
uppercase url visible w-resize wait wider x-fast x-high x-large
x-loud x-low x-small x-soft xx-large xx-small yes
)
end
def self.constants
@constants ||= Set.new %w(
indigo gold firebrick indianred yellow darkolivegreen
darkseagreen mediumvioletred mediumorchid chartreuse
mediumslateblue black springgreen crimson lightsalmon brown
turquoise olivedrab cyan silver skyblue gray darkturquoise
goldenrod darkgreen darkviolet darkgray lightpink teal
darkmagenta lightgoldenrodyellow lavender yellowgreen thistle
violet navy orchid blue ghostwhite honeydew cornflowerblue
darkblue darkkhaki mediumpurple cornsilk red bisque slategray
darkcyan khaki wheat deepskyblue darkred steelblue aliceblue
gainsboro mediumturquoise floralwhite coral purple lightgrey
lightcyan darksalmon beige azure lightsteelblue oldlace
greenyellow royalblue lightseagreen mistyrose sienna lightcoral
orangered navajowhite lime palegreen burlywood seashell
mediumspringgreen fuchsia papayawhip blanchedalmond peru
aquamarine white darkslategray ivory dodgerblue lemonchiffon
chocolate orange forestgreen slateblue olive mintcream
antiquewhite darkorange cadetblue moccasin limegreen saddlebrown
darkslateblue lightskyblue deeppink plum aqua darkgoldenrod
maroon sandybrown magenta tan rosybrown pink lightblue
palevioletred mediumseagreen dimgray powderblue seagreen snow
mediumblue midnightblue paleturquoise palegoldenrod whitesmoke
darkorchid salmon lightslategray lawngreen lightgreen tomato
hotpink lightyellow lavenderblush linen mediumaquamarine green
blueviolet peachpuff
)
end
# source: http://www.w3.org/TR/CSS21/syndata.html#vendor-keyword-history
def self.vendor_prefixes
@vendor_prefixes ||= Set.new %w(
-ah- -atsc- -hp- -khtml- -moz- -ms- -o- -rim- -ro- -tc- -wap-
-webkit- -xv- mso- prince-
)
end
state :root do
mixin :basics
rule %r/{/, Punctuation, :stanza
rule %r/:[:]?#{identifier}/, Name::Decorator
rule %r/\.#{identifier}/, Name::Class
rule %r/##{identifier}/, Name::Function
rule %r/@#{identifier}/, Keyword, :at_rule
rule identifier, Name::Tag
rule %r([~^*!%&\[\]()<>|+=@:;,./?-]), Operator
rule %r/"(\\\\|\\"|[^"])*"/, Str::Single
rule %r/'(\\\\|\\'|[^'])*'/, Str::Double
end
state :value do
mixin :basics
rule %r/url\(.*?\)/, Str::Other
rule %r/#[0-9a-f]{1,6}/i, Num # colors
rule %r/#{number}(?:%|(?:em|px|pt|pc|in|mm|cm|ex|rem|ch|vw|vh|vmin|vmax|dpi|dpcm|dppx|deg|grad|rad|turn|s|ms|Hz|kHz)\b)?/, Num
rule %r/[\[\]():\/.,]/, Punctuation
rule %r/"(\\\\|\\"|[^"])*"/, Str::Single
rule %r/'(\\\\|\\'|[^'])*'/, Str::Double
rule(identifier) do |m|
if self.class.constants.include? m[0]
token Name::Constant
elsif self.class.builtins.include? m[0]
token Name::Builtin
else
token Name
end
end
end
state :at_rule do
rule %r/{(?=\s*#{identifier}\s*:)/m, Punctuation, :at_stanza
rule %r/{/, Punctuation, :at_body
rule %r/;/, Punctuation, :pop!
mixin :value
end
state :at_body do
mixin :at_content
mixin :root
end
state :at_stanza do
mixin :at_content
mixin :stanza
end
state :at_content do
rule %r/}/ do
token Punctuation
pop! 2
end
end
state :basics do
rule %r/\s+/m, Text
rule %r(/\*(?:.*?)\*/)m, Comment
end
state :stanza do
mixin :basics
rule %r/}/, Punctuation, :pop!
rule %r/(#{identifier})(\s*)(:)/m do |m|
name_tok = if self.class.attributes.include? m[1]
Name::Label
elsif self.class.vendor_prefixes.any? { |p| m[1].start_with?(p) }
Name::Label
else
Name::Property
end
groups name_tok, Text, Punctuation
push :stanza_value
end
end
state :stanza_value do
rule %r/;/, Punctuation, :pop!
rule(/(?=})/) { pop! }
rule %r/!\s*important\b/, Comment::Preproc
rule %r/^@.*?$/, Comment::Preproc
mixin :value
end
end
end
end