site/node_modules/css-tree/cjs/syntax/atrule/supports.cjs

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2024-10-14 06:09:33 +00:00
'use strict';
const types = require('../../tokenizer/types.cjs');
function consumeRaw() {
return this.createSingleNodeList(
this.Raw(this.tokenIndex, null, false)
);
}
function parentheses() {
this.skipSC();
if (this.tokenType === types.Ident &&
this.lookupNonWSType(1) === types.Colon) {
return this.createSingleNodeList(
this.Declaration()
);
}
return readSequence.call(this);
}
function readSequence() {
const children = this.createList();
let child;
this.skipSC();
scan:
while (!this.eof) {
switch (this.tokenType) {
case types.Comment:
case types.WhiteSpace:
this.next();
continue;
case types.Function:
child = this.Function(consumeRaw, this.scope.AtrulePrelude);
break;
case types.Ident:
child = this.Identifier();
break;
case types.LeftParenthesis:
child = this.Parentheses(parentheses, this.scope.AtrulePrelude);
break;
default:
break scan;
}
children.push(child);
}
return children;
}
const supports = {
parse: {
prelude() {
const children = readSequence.call(this);
if (this.getFirstListNode(children) === null) {
this.error('Condition is expected');
}
return children;
},
block(isStyleBlock = false) {
return this.Block(isStyleBlock);
}
}
};
module.exports = supports;