lepu-test-platform-web/node_modules/css-tree/lib/syntax/node/Nth.js

52 lines
1.3 KiB
JavaScript

module.exports = {
name: 'Nth',
structure: {
nth: ['AnPlusB', 'Identifier'],
selector: ['SelectorList', null]
},
parse: function(allowOfClause) {
this.scanner.skipSC();
var start = this.scanner.tokenStart;
var end = start;
var selector = null;
var query;
if (this.scanner.lookupValue(0, 'odd') || this.scanner.lookupValue(0, 'even')) {
query = this.Identifier();
} else {
query = this.AnPlusB();
}
this.scanner.skipSC();
if (allowOfClause && this.scanner.lookupValue(0, 'of')) {
this.scanner.next();
selector = this.SelectorList();
if (this.needPositions) {
end = this.getLastListNode(selector.children).loc.end.offset;
}
} else {
if (this.needPositions) {
end = query.loc.end.offset;
}
}
return {
type: 'Nth',
loc: this.getLocation(start, end),
nth: query,
selector: selector
};
},
generate: function(node) {
this.node(node.nth);
if (node.selector !== null) {
this.chunk(' of ');
this.node(node.selector);
}
}
};