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Diffstat (limited to 'lexlua/css.lua')
| -rw-r--r-- | lexlua/css.lua | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/lexlua/css.lua b/lexlua/css.lua new file mode 100644 index 000000000..7b3230287 --- /dev/null +++ b/lexlua/css.lua @@ -0,0 +1,165 @@ +-- Copyright 2006-2018 Mitchell mitchell.att.foicica.com. See License.txt. +-- CSS LPeg lexer. + +local lexer = require('lexer') +local token, word_match = lexer.token, lexer.word_match +local P, R, S, V = lpeg.P, lpeg.R, lpeg.S, lpeg.V + +local lex = lexer.new('css') + +-- Whitespace. +lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1)) + +-- Properties. +lex:add_rule('property', token('property', word_match[[ + -- CSS 1. + color background-color background-image background-repeat + background-attachment background-position background font-family font-style + font-variant font-weight font-size font word-spacing letter-spacing + text-decoration vertical-align text-transform text-align text-indent + line-height margin-top margin-right margin-bottom margin-left margin + padding-top padding-right padding-bottom padding-left padding border-top-width + border-right-width border-bottom-width border-left-width border-width + border-top border-right border-bottom border-left border border-color + border-style width height float clear display white-space list-style-type + list-style-image list-style-position list-style + -- CSS 2. + border-top-color border-right-color border-bottom-color border-left-color + border-color border-top-style border-right-style border-bottom-style + border-left-style border-style top right bottom left position z-index + direction unicode-bidi min-width max-width min-height max-height overflow clip + visibility content quotes counter-reset counter-increment marker-offset size + marks page-break-before page-break-after page-break-inside page orphans widows + font-stretch font-size-adjust unicode-range units-per-em src panose-1 stemv + stemh slope cap-height x-height ascent descent widths bbox definition-src + baseline centerline mathline topline text-shadow caption-side table-layout + border-collapse border-spacing empty-cells speak-header cursor outline + outline-width outline-style outline-color volume speak pause-before + pause-after pause cue-before cue-after cue play-during azimuth elevation + speech-rate voice-family pitch pitch-range stress richness speak-punctuation + speak-numeral +]])) +lex:add_style('property', lexer.STYLE_KEYWORD) + +-- Values. +lex:add_rule('value', token('value', word_match[[ + -- CSS 1. + auto none normal italic oblique small-caps bold bolder lighter xx-small + x-small small medium large x-large xx-large larger smaller transparent repeat + repeat-x repeat-y no-repeat scroll fixed top bottom left center right justify + both underline overline line-through blink baseline sub super text-top middle + text-bottom capitalize uppercase lowercase thin medium thick dotted dashed + solid double groove ridge inset outset block inline list-item pre no-wrap + inside outside disc circle square decimal lower-roman upper-roman lower-alpha + upper-alpha aqua black blue fuchsia gray green lime maroon navy olive purple + red silver teal white yellow + -- CSS 2. + inherit run-in compact marker table inline-table table-row-group + table-header-group table-footer-group table-row table-column-group + table-column table-cell table-caption static relative absolute fixed ltr rtl + embed bidi-override visible hidden scroll collapse open-quote close-quote + no-open-quote no-close-quote decimal-leading-zero lower-greek lower-latin + upper-latin hebrew armenian georgian cjk-ideographic hiragana katakana + hiragana-iroha katakana-iroha landscape portrait crop cross always avoid wider + narrower ultra-condensed extra-condensed condensed semi-condensed + semi-expanded expanded extra-expanded ultra-expanded caption icon menu + message-box small-caption status-bar separate show hide once crosshair default + pointer move text wait help e-resize ne-resize nw-resize n-resize se-resize + sw-resize s-resize w-resize ActiveBorder ActiveCaption AppWorkspace Background + ButtonFace ButtonHighlight ButtonShadow InactiveCaptionText ButtonText + CaptionText GrayText Highlight HighlightText InactiveBorder InactiveCaption + InfoBackground InfoText Menu MenuText Scrollbar ThreeDDarkShadow ThreeDFace + ThreeDHighlight ThreeDLightShadow ThreeDShadow Window WindowFrame WindowText + silent x-soft soft medium loud x-loud spell-out mix left-side far-left + center-left center-right far-right right-side behind leftwards rightwards + below level above higher lower x-slow slow medium fast x-fast faster slower + male female child x-low low high x-high code digits continous +]])) +lex:add_style('value', lexer.STYLE_CONSTANT) + +-- Functions. +lex:add_rule('function', token(lexer.FUNCTION, word_match[[ + attr blackness blend blenda blur brightness calc circle color-mod contrast + counter cubic-bezier device-cmyk drop-shadow ellipse gray grayscale hsl hsla + hue hue-rotate hwb image inset invert lightness linear-gradient matrix + matrix3d opacity perspective polygon radial-gradient rect + repeating-linear-gradient repeating-radial-gradient rgb rgba rotate rotate3d + rotateX rotateY rotateZ saturate saturation scale scale3d scaleX scaleY scaleZ + sepia shade skewX skewY steps tint toggle translate translate3d translateX + translateY translateZ url whiteness +]])) + +-- Colors. +local xdigit = lexer.xdigit +lex:add_rule('color', token('color', word_match[[ + aliceblue antiquewhite aqua aquamarine azure beige bisque black + blanchedalmond blue blueviolet brown burlywood cadetblue chartreuse chocolate + coral cornflowerblue cornsilk crimson cyan darkblue darkcyan darkgoldenrod + darkgray darkgreen darkgrey darkkhaki darkmagenta darkolivegreen darkorange + darkorchid darkred darksalmon darkseagreen darkslateblue darkslategray + darkslategrey darkturquoise darkviolet deeppink deepskyblue dimgray dimgrey + dodgerblue firebrick floralwhite forestgreen fuchsia gainsboro ghostwhite gold + goldenrod gray green greenyellow grey honeydew hotpink indianred indigo ivory + khaki lavender lavenderblush lawngreen lemonchiffon lightblue lightcoral + lightcyan lightgoldenrodyellow lightgray lightgreen lightgrey lightpink + lightsalmon lightseagreen lightskyblue lightslategray lightslategrey + lightsteelblue lightyellow lime limegreen linen magenta maroon + mediumaquamarine mediumblue mediumorchid mediumpurple mediumseagreen + mediumslateblue mediumspringgreen mediumturquoise mediumvioletred + midnightblue mintcream mistyrose moccasin navajowhite navy oldlace olive + olivedrab orange orangered orchid palegoldenrod palegreen paleturquoise + palevioletred papayawhip peachpuff peru pink plum powderblue purple + rebeccapurple red rosybrown royalblue saddlebrown salmon sandybrown seagreen + seashell sienna silver skyblue slateblue slategray slategrey snow springgreen + steelblue tan teal thistle tomato transparent turquoise violet wheat white + whitesmoke yellow yellowgreen +]] + '#' * xdigit * xdigit * xdigit * (xdigit * xdigit * xdigit)^-1)) +lex:add_style('color', lexer.STYLE_NUMBER) + +-- Identifiers. +lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.alpha * + (lexer.alnum + S('_-'))^0)) + +-- Pseudo classes and pseudo elements. +lex:add_rule('pseudoclass', ':' * token('pseudoclass', word_match[[ + active checked disabled empty enabled first-child first-of-type focus hover + in-range invalid lang last-child last-of-type link not nth-child + nth-last-child nth-last-of-type nth-of-type only-of-type only-child optional + out-of-range read-only read-write required root target valid visited +]])) +lex:add_style('pseudoclass', lexer.STYLE_CONSTANT) +lex:add_rule('pseudoelement', '::' * token('pseudoelement', word_match[[ + after before first-letter first-line selection +]])) +lex:add_style('pseudoelement', lexer.STYLE_CONSTANT) + +-- Strings. +lex:add_rule('string', token(lexer.STRING, lexer.delimited_range("'") + + lexer.delimited_range('"'))) + +-- Comments. +lex:add_rule('comment', token(lexer.COMMENT, '/*' * (lexer.any - '*/')^0 * + P('*/')^-1)) + +-- Numbers. +local unit = token('unit', word_match[[ + ch cm deg dpcm dpi dppx em ex grad Hz in kHz mm ms pc pt px q rad rem s turn + vh vmax vmin vw +]]) +lex:add_style('unit', lexer.STYLE_NUMBER) +lex:add_rule('number', token(lexer.NUMBER, lexer.digit^1) * unit^-1) + +-- Operators. +lex:add_rule('operator', token(lexer.OPERATOR, S('~!#*>+=|.,:;()[]{}'))) + +-- At rule. +lex:add_rule('at_rule', token('at_rule', P('@') * word_match[[ + charset font-face media page import namespace +]])) +lex:add_style('at_rule', lexer.STYLE_PREPROCESSOR) + +-- Fold points. +lex:add_fold_point(lexer.OPERATOR, '{', '}') +lex:add_fold_point(lexer.COMMENT, '/*', '*/') + +return lex |