/
ast-to-tokens.js
57 lines (53 loc) · 1.8 KB
/
ast-to-tokens.js
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module.exports = {
decorator: function(handlers) {
var curNode = null;
var prev = null;
var tokens = [];
return {
children: handlers.children,
node: function(node) {
var tmp = curNode;
curNode = node;
handlers.node.call(this, node);
curNode = tmp;
},
chunk: function(chunk) {
if (tokens.length > 0) {
switch (curNode.type) {
case 'Dimension':
case 'HexColor':
case 'IdSelector':
case 'Percentage':
if (prev.node === curNode) {
prev.value += chunk;
return;
}
break;
case 'Function':
case 'PseudoClassSelector':
case 'PseudoElementSelector':
case 'Url':
if (chunk === '(') {
prev.value += chunk;
return;
}
break;
case 'Atrule':
if (prev.node === curNode && prev.value === '@') {
prev.value += chunk;
return;
}
break;
}
}
tokens.push(prev = {
value: chunk,
node: curNode
});
},
result: function() {
return tokens;
}
};
}
};