ce4c83ff
 wxy
初始提交
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
var utils = require('../utils')
, nodes = require('../nodes');
/**
* Return the opposites of the given `positions`.
*
* Examples:
*
* opposite-position(top left)
* // => bottom right
*
* @param {Expression} positions
* @return {Expression}
* @api public
*/
(module.exports = function oppositePosition(positions){
var expr = [];
utils.unwrap(positions).nodes.forEach(function(pos, i){
utils.assertString(pos, 'position ' + i);
pos = (function(){ switch (pos.string) {
case 'top': return 'bottom';
case 'bottom': return 'top';
case 'left': return 'right';
case 'right': return 'left';
case 'center': return 'center';
default: throw new Error('invalid position ' + pos);
}})();
expr.push(new nodes.Literal(pos));
});
return expr;
}).raw = true;
|
