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wip: add nesting support to syntax highlighting #1389

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ca4c371
Add nesting support to CSS syntax
thecrypticace May 28, 2025
a8567c6
wip
thecrypticace May 28, 2025
8e6911e
wip
thecrypticace May 28, 2025
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57 changes: 53 additions & 4 deletions packages/tailwindcss-language-syntax/syntaxes/css.json
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,9 @@
},
{
"include": "#rule-list"
},
{
"include": "#nesting-selector"
}
],
"repository": {
Expand Down Expand Up @@ -224,6 +227,9 @@
},
"name": "meta.at-rule.media.body.css",
"patterns": [
{
"include": "#nesting-at-rules"
},
{
"include": "$self"
}
Expand Down Expand Up @@ -506,6 +512,9 @@
},
"name": "meta.at-rule.supports.body.css",
"patterns": [
{
"include": "#nesting-at-rules"
},
{
"include": "$self"
}
Expand Down Expand Up @@ -1379,6 +1388,37 @@
},
"match": "(?xi)\n(?<=^|\\s|,|\\*/)\n(?:\n # Valid media types\n (all|print|screen|speech)\n |\n # Deprecated in Media Queries 4: http://dev.w3.org/csswg/mediaqueries/#media-types\n (aural|braille|embossed|handheld|projection|tty|tv)\n)\n(?=$|[{,\\s;]|/\\*)"
},
"nesting-at-rules": {
"patterns": [
{
"include": "#commas"
},
{
"include": "#nesting-rules"
},
{
"include": "#rule-list-innards"
}
]
},
"nesting-rules": {
"patterns": [
{
"match": "(?xi) (?<![\\w:-])\n(?:\n header|label|mark|nav|ruby|span\n)\n(?=[+~>\\s,.\\#|&){:\\[]|/\\*|$)",
"name": "entity.name.tag.css"
},
{
"include": "#property-names"
},
{
"include": "#selector-innards"
}
]
},
"nesting-selector": {
"match": "&",
"name": "entity.name.tag.nesting.selector.css"
},
"numeric-values": {
"patterns": [
{
Expand Down Expand Up @@ -1510,8 +1550,14 @@
},
"name": "meta.property-list.css",
"patterns": [
{
"include": "#nesting-rules"
},
{
"include": "#rule-list-innards"
},
{
"include": "$self"
}
]
},
Expand Down Expand Up @@ -1581,6 +1627,9 @@
},
"selector-innards": {
"patterns": [
{
"include": "#nesting-selector"
},
{
"include": "#comment-block"
},
Expand Down Expand Up @@ -1624,7 +1673,7 @@
]
}
},
"match": "(?x) (?<![@\\w-])\n([.\\#])\n# Invalid identifier\n(\n (?:\n # Starts with ASCII digits, with possible hyphen preceding it\n -?[0-9]\n |\n # Consists of a hyphen only\n - # Terminated by either:\n (?= $ # - End-of-line\n | [\\s,.\\#)\\[:{>+~|] # - Followed by another selector\n | /\\* # - Followed by a block comment\n )\n |\n # Name contains unescaped ASCII symbol\n (?: # Check for acceptable preceding characters\n [-a-zA-Z_0-9]|[^\\x00-\\x7F] # - Valid selector character\n | \\\\(?:[0-9a-fA-F]{1,6}|.) # - Escape sequence\n )*\n (?: # Invalid punctuation\n [!\"'%&(*;<?@^`|\\]}] # - NOTE: We exempt `)` from the list of checked\n | # symbols to avoid matching `:not(.invalid)`\n / (?!\\*) # - Avoid invalidating the start of a comment\n )+\n )\n # Mark remainder of selector invalid\n (?: [-a-zA-Z_0-9]|[^\\x00-\\x7F] # - Otherwise valid identifier characters\n | \\\\(?:[0-9a-fA-F]{1,6}|.) # - Escape sequence\n )*\n)",
"match": "(?x) (?<![@\\w-])\n([.\\#])\n# Invalid identifier\n(\n (?:\n # Starts with ASCII digits, with possible hyphen preceding it\n -?[0-9]\n |\n # Consists of a hyphen only\n - # Terminated by either:\n (?= $ # - End-of-line\n | [\\s,.\\#)\\[:{>+~|&] # - Followed by another selector\n | /\\* # - Followed by a block comment\n )\n |\n # Name contains unescaped ASCII symbol\n (?: # Check for acceptable preceding characters\n [-a-zA-Z_0-9]|[^\\x00-\\x7F] # - Valid selector character\n | \\\\(?:[0-9a-fA-F]{1,6}|.) # - Escape sequence\n )*\n (?: # Invalid punctuation\n [!\"'%(*;<?@^`|\\]}] # - NOTE: We exempt `)` from the list of checked\n | # symbols to avoid matching `:not(.invalid)`\n / (?!\\*) # - Avoid invalidating the start of a comment\n )+\n )\n # Mark remainder of selector invalid\n (?: [-a-zA-Z_0-9]|[^\\x00-\\x7F] # - Otherwise valid identifier characters\n | \\\\(?:[0-9a-fA-F]{1,6}|.) # - Escape sequence\n )*\n)",
"name": "invalid.illegal.bad-identifier.css"
},
{
Expand All @@ -1640,7 +1689,7 @@
]
}
},
"match": "(?x)\n(\\.) # Valid class-name\n(\n (?: [-a-zA-Z_0-9]|[^\\x00-\\x7F] # Valid identifier characters\n | \\\\(?:[0-9a-fA-F]{1,6}|.) # Escape sequence\n )+\n) # Followed by either:\n(?= $ # - End of the line\n | [\\s,.\\#)\\[:{>+~|] # - Another selector\n | /\\* # - A block comment\n)",
"match": "(?x)\n(\\.) # Valid class-name\n(\n (?: [-a-zA-Z_0-9]|[^\\x00-\\x7F] # Valid identifier characters\n | \\\\(?:[0-9a-fA-F]{1,6}|.) # Escape sequence\n )+\n) # Followed by either:\n(?= $ # - End of the line\n | [\\s,.\\#)\\[:{>+~|&] # - Another selector\n | /\\* # - A block comment\n)",
"name": "entity.other.attribute-name.class.css"
},
{
Expand All @@ -1656,7 +1705,7 @@
]
}
},
"match": "(?x)\n(\\#)\n(\n -?\n (?![0-9])\n (?:[-a-zA-Z0-9_]|[^\\x00-\\x7F]|\\\\(?:[0-9a-fA-F]{1,6}|.))+\n)\n(?=$|[\\s,.\\#)\\[:{>+~|]|/\\*)",
"match": "(?x)\n(\\#)\n(\n -?\n (?![0-9])\n (?:[-a-zA-Z0-9_]|[^\\x00-\\x7F]|\\\\(?:[0-9a-fA-F]{1,6}|.))+\n)\n(?=$|[\\s,.\\#)\\[:{>+~|&]|/\\*)",
"name": "entity.other.attribute-name.id.css"
},
{
Expand Down Expand Up @@ -1820,7 +1869,7 @@
]
},
"tag-names": {
"match": "(?xi) (?<![\\w:-])\n(?:\n # HTML\n a|abbr|acronym|address|applet|area|article|aside|audio|b|base|basefont|bdi|bdo|bgsound\n | big|blink|blockquote|body|br|button|canvas|caption|center|cite|code|col|colgroup|command\n | content|data|datalist|dd|del|details|dfn|dialog|dir|div|dl|dt|element|em|embed|fieldset\n | figcaption|figure|font|footer|form|frame|frameset|h[1-6]|head|header|hgroup|hr|html|i\n | iframe|image|img|input|ins|isindex|kbd|keygen|label|legend|li|link|listing|main|map|mark\n | marquee|math|menu|menuitem|meta|meter|multicol|nav|nextid|nobr|noembed|noframes|noscript\n | object|ol|optgroup|option|output|p|param|picture|plaintext|pre|progress|q|rb|rp|rt|rtc\n | ruby|s|samp|script|section|select|shadow|slot|small|source|spacer|span|strike|strong\n | style|sub|summary|sup|table|tbody|td|template|textarea|tfoot|th|thead|time|title|tr\n | track|tt|u|ul|var|video|wbr|xmp\n\n # SVG\n | altGlyph|altGlyphDef|altGlyphItem|animate|animateColor|animateMotion|animateTransform\n | circle|clipPath|color-profile|cursor|defs|desc|discard|ellipse|feBlend|feColorMatrix\n | feComponentTransfer|feComposite|feConvolveMatrix|feDiffuseLighting|feDisplacementMap\n | feDistantLight|feDropShadow|feFlood|feFuncA|feFuncB|feFuncG|feFuncR|feGaussianBlur\n | feImage|feMerge|feMergeNode|feMorphology|feOffset|fePointLight|feSpecularLighting\n | feSpotLight|feTile|feTurbulence|filter|font-face|font-face-format|font-face-name\n | font-face-src|font-face-uri|foreignObject|g|glyph|glyphRef|hatch|hatchpath|hkern\n | line|linearGradient|marker|mask|mesh|meshgradient|meshpatch|meshrow|metadata\n | missing-glyph|mpath|path|pattern|polygon|polyline|radialGradient|rect|set|solidcolor\n | stop|svg|switch|symbol|text|textPath|tref|tspan|use|view|vkern\n\n # MathML\n | annotation|annotation-xml|maction|maligngroup|malignmark|math|menclose|merror|mfenced\n | mfrac|mglyph|mi|mlabeledtr|mlongdiv|mmultiscripts|mn|mo|mover|mpadded|mphantom|mroot\n | mrow|ms|mscarries|mscarry|msgroup|msline|mspace|msqrt|msrow|mstack|mstyle|msub|msubsup\n | msup|mtable|mtd|mtext|mtr|munder|munderover|semantics\n)\n(?=[+~>\\s,.\\#|){:\\[]|/\\*|$)",
"match": "(?xi) (?<![\\w:-])\n(?:\n # HTML\n a|abbr|acronym|address|applet|area|article|aside|audio|b|base|basefont|bdi|bdo|bgsound\n | big|blink|blockquote|body|br|button|canvas|caption|center|cite|code|col|colgroup|command\n | content|data|datalist|dd|del|details|dfn|dialog|dir|div|dl|dt|element|em|embed|fieldset\n | figcaption|figure|font|footer|form|frame|frameset|h[1-6]|head|header|hgroup|hr|html|i\n | iframe|image|img|input|ins|isindex|kbd|keygen|label|legend|li|link|listing|main|map|mark\n | marquee|math|menu|menuitem|meta|meter|multicol|nav|nextid|nobr|noembed|noframes|noscript\n | object|ol|optgroup|option|output|p|param|picture|plaintext|pre|progress|q|rb|rp|rt|rtc\n | ruby|s|samp|script|section|select|shadow|slot|small|source|spacer|span|strike|strong\n | style|sub|summary|sup|table|tbody|td|template|textarea|tfoot|th|thead|time|title|tr\n | track|tt|u|ul|var|video|wbr|xmp\n\n # SVG\n | altGlyph|altGlyphDef|altGlyphItem|animate|animateColor|animateMotion|animateTransform\n | circle|clipPath|color-profile|cursor|defs|desc|discard|ellipse|feBlend|feColorMatrix\n | feComponentTransfer|feComposite|feConvolveMatrix|feDiffuseLighting|feDisplacementMap\n | feDistantLight|feDropShadow|feFlood|feFuncA|feFuncB|feFuncG|feFuncR|feGaussianBlur\n | feImage|feMerge|feMergeNode|feMorphology|feOffset|fePointLight|feSpecularLighting\n | feSpotLight|feTile|feTurbulence|filter|font-face|font-face-format|font-face-name\n | font-face-src|font-face-uri|foreignObject|g|glyph|glyphRef|hatch|hatchpath|hkern\n | line|linearGradient|marker|mask|mesh|meshgradient|meshpatch|meshrow|metadata\n | missing-glyph|mpath|path|pattern|polygon|polyline|radialGradient|rect|set|solidcolor\n | stop|svg|switch|symbol|text|textPath|tref|tspan|use|view|vkern\n\n # MathML\n | annotation|annotation-xml|maction|maligngroup|malignmark|math|menclose|merror|mfenced\n | mfrac|mglyph|mi|mlabeledtr|mlongdiv|mmultiscripts|mn|mo|mover|mpadded|mphantom|mroot\n | mrow|ms|mscarries|mscarry|msgroup|msline|mspace|msqrt|msrow|mstack|mstyle|msub|msubsup\n | msup|mtable|mtd|mtext|mtr|munder|munderover|semantics\n)\n(?=[+~>\\s,.\\#|&){:\\[]|/\\*|$)",
"name": "entity.name.tag.css"
},
"unicode-range": {
Expand Down
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