diff options
Diffstat (limited to 'vanilla/node_modules/css-tree/cjs/generator/token-before.cjs')
| -rw-r--r-- | vanilla/node_modules/css-tree/cjs/generator/token-before.cjs | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/vanilla/node_modules/css-tree/cjs/generator/token-before.cjs b/vanilla/node_modules/css-tree/cjs/generator/token-before.cjs deleted file mode 100644 index 87bf4a3..0000000 --- a/vanilla/node_modules/css-tree/cjs/generator/token-before.cjs +++ /dev/null @@ -1,170 +0,0 @@ -'use strict'; - -const types = require('../tokenizer/types.cjs'); - -const PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+) -const HYPHENMINUS = 0x002D; // U+002D HYPHEN-MINUS (-) - -const code = (type, value) => { - if (type === types.Delim) { - type = value; - } - - if (typeof type === 'string') { - const charCode = type.charCodeAt(0); - return charCode > 0x7F ? 0x8000 : charCode << 8; - } - - return type; -}; - -// https://www.w3.org/TR/css-syntax-3/#serialization -// The only requirement for serialization is that it must "round-trip" with parsing, -// that is, parsing the stylesheet must produce the same data structures as parsing, -// serializing, and parsing again, except for consecutive <whitespace-token>s, -// which may be collapsed into a single token. - -const specPairs = [ - [types.Ident, types.Ident], - [types.Ident, types.Function], - [types.Ident, types.Url], - [types.Ident, types.BadUrl], - [types.Ident, '-'], - [types.Ident, types.Number], - [types.Ident, types.Percentage], - [types.Ident, types.Dimension], - [types.Ident, types.CDC], - [types.Ident, types.LeftParenthesis], - - [types.AtKeyword, types.Ident], - [types.AtKeyword, types.Function], - [types.AtKeyword, types.Url], - [types.AtKeyword, types.BadUrl], - [types.AtKeyword, '-'], - [types.AtKeyword, types.Number], - [types.AtKeyword, types.Percentage], - [types.AtKeyword, types.Dimension], - [types.AtKeyword, types.CDC], - - [types.Hash, types.Ident], - [types.Hash, types.Function], - [types.Hash, types.Url], - [types.Hash, types.BadUrl], - [types.Hash, '-'], - [types.Hash, types.Number], - [types.Hash, types.Percentage], - [types.Hash, types.Dimension], - [types.Hash, types.CDC], - - [types.Dimension, types.Ident], - [types.Dimension, types.Function], - [types.Dimension, types.Url], - [types.Dimension, types.BadUrl], - [types.Dimension, '-'], - [types.Dimension, types.Number], - [types.Dimension, types.Percentage], - [types.Dimension, types.Dimension], - [types.Dimension, types.CDC], - - ['#', types.Ident], - ['#', types.Function], - ['#', types.Url], - ['#', types.BadUrl], - ['#', '-'], - ['#', types.Number], - ['#', types.Percentage], - ['#', types.Dimension], - ['#', types.CDC], // https://github.com/w3c/csswg-drafts/pull/6874 - - ['-', types.Ident], - ['-', types.Function], - ['-', types.Url], - ['-', types.BadUrl], - ['-', '-'], - ['-', types.Number], - ['-', types.Percentage], - ['-', types.Dimension], - ['-', types.CDC], // https://github.com/w3c/csswg-drafts/pull/6874 - - [types.Number, types.Ident], - [types.Number, types.Function], - [types.Number, types.Url], - [types.Number, types.BadUrl], - [types.Number, types.Number], - [types.Number, types.Percentage], - [types.Number, types.Dimension], - [types.Number, '%'], - [types.Number, types.CDC], // https://github.com/w3c/csswg-drafts/pull/6874 - - ['@', types.Ident], - ['@', types.Function], - ['@', types.Url], - ['@', types.BadUrl], - ['@', '-'], - ['@', types.CDC], // https://github.com/w3c/csswg-drafts/pull/6874 - - ['.', types.Number], - ['.', types.Percentage], - ['.', types.Dimension], - - ['+', types.Number], - ['+', types.Percentage], - ['+', types.Dimension], - - ['/', '*'] -]; -// validate with scripts/generate-safe -const safePairs = specPairs.concat([ - [types.Ident, types.Hash], - - [types.Dimension, types.Hash], - - [types.Hash, types.Hash], - - [types.AtKeyword, types.LeftParenthesis], - [types.AtKeyword, types.String], - [types.AtKeyword, types.Colon], - - [types.Percentage, types.Percentage], - [types.Percentage, types.Dimension], - [types.Percentage, types.Function], - [types.Percentage, '-'], - - [types.RightParenthesis, types.Ident], - [types.RightParenthesis, types.Function], - [types.RightParenthesis, types.Percentage], - [types.RightParenthesis, types.Dimension], - [types.RightParenthesis, types.Hash], - [types.RightParenthesis, '-'] -]); - -function createMap(pairs) { - const isWhiteSpaceRequired = new Set( - pairs.map(([prev, next]) => (code(prev) << 16 | code(next))) - ); - - return function(prevCode, type, value) { - const nextCode = code(type, value); - const nextCharCode = value.charCodeAt(0); - const emitWs = - (nextCharCode === HYPHENMINUS && - type !== types.Ident && - type !== types.Function && - type !== types.CDC) || - (nextCharCode === PLUSSIGN) - ? isWhiteSpaceRequired.has(prevCode << 16 | nextCharCode << 8) - : isWhiteSpaceRequired.has(prevCode << 16 | nextCode); - - if (emitWs) { - this.emit(' ', types.WhiteSpace, true); - } - - return nextCode; - }; -} - -const spec = createMap(specPairs); -const safe = createMap(safePairs); - -exports.safe = safe; -exports.spec = spec; |
