diff options
Diffstat (limited to 'lua/lexers/css.lua')
| -rw-r--r-- | lua/lexers/css.lua | 141 |
1 files changed, 87 insertions, 54 deletions
diff --git a/lua/lexers/css.lua b/lua/lexers/css.lua index de9fd96..c48d378 100644 --- a/lua/lexers/css.lua +++ b/lua/lexers/css.lua @@ -1,17 +1,78 @@ --- Copyright 2006-2022 Mitchell. See LICENSE. +-- Copyright 2006-2024 Mitchell. See LICENSE. -- CSS LPeg lexer. -local lexer = require('lexer') -local token, word_match = lexer.token, lexer.word_match -local P, S = lpeg.P, lpeg.S +local lexer = lexer +local P, S, B = lpeg.P, lpeg.S, lpeg.B -local lex = lexer.new('css') +local lex = lexer.new(..., {no_user_word_lists = true}) --- Whitespace. -lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1)) +-- Tags. +local sel_prefix = B(S('#.')) +local sel_suffix = lexer.space^0 * S('!>+.,:[{') +lex:add_rule('tag', -sel_prefix * lex:tag(lexer.TAG, lex:word_match(lexer.TAG) * #sel_suffix)) -- Properties. -lex:add_rule('property', token('property', word_match{ +lex:add_rule('property', lex:tag('property', lex:word_match('property')) * #P(':')) + +-- Values. +lex:add_rule('value', + -sel_prefix * lex:tag(lexer.CONSTANT_BUILTIN, lex:word_match('value')) * -sel_suffix) + +-- Functions. +lex:add_rule('function', lex:tag(lexer.FUNCTION_BUILTIN, lex:word_match(lexer.FUNCTION_BUILTIN))) + +-- Colors. +local color_name = lex:tag(lexer.CONSTANT_BUILTIN, lex:word_match('color')) +local xdigit = lexer.xdigit +local color_value = lex:tag(lexer.NUMBER, + '#' * xdigit * xdigit * xdigit * (xdigit * xdigit * xdigit)^-1) +lex:add_rule('color', color_name + color_value) + +-- Identifiers. +lex:add_rule('identifier', lex:tag(lexer.IDENTIFIER, lexer.alpha * (lexer.alnum + S('_-'))^0)) + +-- Pseudo classes and pseudo elements. +lex:add_rule('pseudoclass', ':' * lex:tag('pseudoclass', lex:word_match('pseudoclass'))) +lex:add_rule('pseudoelement', '::' * lex:tag('pseudoelement', lex:word_match('pseudoelement'))) + +-- Strings. +local sq_str = lexer.range("'") +local dq_str = lexer.range('"') +lex:add_rule('string', lex:tag(lexer.STRING, sq_str + dq_str)) + +-- Comments. +lex:add_rule('comment', lex:tag(lexer.COMMENT, lexer.range('/*', '*/'))) + +-- Numbers. +local unit = lex:word_match('unit') + '%' +lex:add_rule('number', lex:tag(lexer.NUMBER, lexer.number * unit^-1)) + +-- Operators. +lex:add_rule('operator', lex:tag(lexer.OPERATOR, S('~!#*>+=|.,:;()[]{}'))) + +-- At rule. +lex:add_rule('at_rule', lex:tag(lexer.PREPROCESSOR, '@' * lex:word_match('at_rule'))) + +-- Fold points. +lex:add_fold_point(lexer.OPERATOR, '{', '}') +lex:add_fold_point(lexer.COMMENT, '/*', '*/') + +-- Word lists. +lex:set_word_list(lexer.TAG, { + 'a', 'abbr', 'address', 'article', 'aside', 'audio', 'b', 'bdi', 'bdo', 'blockquote', 'body', + 'button', 'canvas', 'caption', 'cite', 'code', 'colgroup', 'content', 'data', 'datalist', 'dd', + 'decorator', 'del', 'details', 'dfn', 'div', 'dl', 'dt', 'element', 'em', 'fieldset', + 'figcaption', 'figure', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', + 'html', 'i', 'iframe', 'ins', 'kbd', 'label', 'legend', 'li', 'main', 'map', 'mark', 'menu', + 'menuitem', 'meter', 'nav', 'noscript', 'object', 'ol', 'optgroup', 'option', 'output', 'p', + 'pre', 'progress', 'q', 'rp', 'rt', 'ruby', 's', 'samp', 'script', 'section', 'select', 'shadow', + 'small', 'spacer', 'span', 'strong', 'style', 'sub', 'summary', 'sup', 'table', 'tbody', 'td', + 'template', 'textarea', 'tfoot', 'th', 'thead', 'time', 'title', 'tr', 'u', 'ul', 'var', 'video', -- + 'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'keygen', 'link', 'meta', + 'param', 'source', 'track', 'wbr' +}) + +lex:set_word_list('property', { -- CSS 1. 'color', 'background-color', 'background-image', 'background-repeat', 'background-attachment', 'background-position', 'background', 'font-family', 'font-style', 'font-variant', 'font-weight', @@ -42,11 +103,9 @@ lex:add_rule('property', token('property', word_match{ 'align-content', 'align-items', 'align-self', 'justify-content', 'order', 'border-radius', 'transition', 'transform', 'box-shadow', 'filter', 'opacity', 'resize', 'word-break', 'word-wrap', 'box-sizing', 'animation', 'text-overflow' -})) -lex:add_style('property', lexer.styles.keyword) +}) --- Values. -lex:add_rule('value', token('value', word_match{ +lex:set_word_list('value', { -- 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', @@ -82,11 +141,9 @@ lex:add_rule('value', token('value', word_match{ 'female', 'child', 'x-low', 'low', 'high', 'x-high', 'code', 'digits', 'continous', -- CSS 3. 'flex', 'row', 'column', 'ellipsis', 'inline-block' -})) -lex:add_style('value', lexer.styles.constant) +}) --- Functions. -lex:add_rule('function', token(lexer.FUNCTION, word_match{ +lex:set_word_list(lexer.FUNCTION_BUILTIN, { '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', @@ -95,11 +152,9 @@ lex:add_rule('function', token(lexer.FUNCTION, word_match{ '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', 'var' -})) +}) --- Colors. -local xdigit = lexer.xdigit -lex:add_rule('color', token('color', word_match{ +lex:set_word_list('color', { 'aliceblue', 'antiquewhite', 'aqua', 'aquamarine', 'azure', 'beige', 'bisque', 'black', 'blanchedalmond', 'blue', 'blueviolet', 'brown', 'burlywood', 'cadetblue', 'chartreuse', 'chocolate', 'coral', 'cornflowerblue', 'cornsilk', 'crimson', 'cyan', 'darkblue', 'darkcyan', @@ -121,48 +176,26 @@ lex:add_rule('color', token('color', word_match{ '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.styles.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{ +lex:set_word_list('pseudoclass', { '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.styles.constant) -lex:add_rule('pseudoelement', '::' * - token('pseudoelement', word_match('after before first-letter first-line selection'))) -lex:add_style('pseudoelement', lexer.styles.constant) +}) --- Strings. -local sq_str = lexer.range("'") -local dq_str = lexer.range('"') -lex:add_rule('string', token(lexer.STRING, sq_str + dq_str)) - --- Comments. -lex:add_rule('comment', token(lexer.COMMENT, lexer.range('/*', '*/'))) +lex:set_word_list('pseudoelement', 'after before first-letter first-line selection') --- 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.styles.number) -lex:add_rule('number', token(lexer.NUMBER, lexer.dec_num) * unit^-1) +lex:set_word_list('unit', { + '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' +}) --- Operators. -lex:add_rule('operator', token(lexer.OPERATOR, S('~!#*>+=|.,:;()[]{}'))) +lex:set_word_list('at_rule', 'charset font-face media page import namespace keyframes') --- At rule. -lex:add_rule('at_rule', token('at_rule', '@' * - word_match('charset font-face media page import namespace keyframes'))) -lex:add_style('at_rule', lexer.styles.preprocessor) - --- Fold points. -lex:add_fold_point(lexer.OPERATOR, '{', '}') -lex:add_fold_point(lexer.COMMENT, '/*', '*/') +lexer.property['scintillua.comment'] = '/*|*/' +lexer.property['scintillua.word.chars'] = + 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-' return lex |