67 lines
1.7 KiB
JavaScript
Executable File
67 lines
1.7 KiB
JavaScript
Executable File
'use strict';
|
|
|
|
exports.__esModule = true;
|
|
|
|
var _postcss = require('postcss');
|
|
|
|
var _postcss2 = _interopRequireDefault(_postcss);
|
|
|
|
var _postcssValueParser = require('postcss-value-parser');
|
|
|
|
var _postcssValueParser2 = _interopRequireDefault(_postcssValueParser);
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
|
function unicode(range) {
|
|
var values = range.slice(2).split('-');
|
|
if (values.length < 2) {
|
|
return range;
|
|
}
|
|
var left = values[0].split('');
|
|
var right = values[1].split('');
|
|
|
|
if (left.length !== right.length) {
|
|
return range;
|
|
}
|
|
|
|
var questionCounter = 0;
|
|
|
|
var merged = left.reduce(function (group, value, index) {
|
|
if (group === false) {
|
|
return false;
|
|
}
|
|
if (value === right[index] && !questionCounter) {
|
|
return group + value;
|
|
}
|
|
if (value === '0' && right[index] === 'f') {
|
|
questionCounter++;
|
|
return group + '?';
|
|
}
|
|
return false;
|
|
}, 'u+');
|
|
|
|
/*
|
|
* The maximum number of wildcard characters (?) for ranges is 5.
|
|
*/
|
|
|
|
if (merged && questionCounter < 6) {
|
|
return merged;
|
|
}
|
|
|
|
return range;
|
|
}
|
|
|
|
exports.default = _postcss2.default.plugin('cssnano-normalize-unicode', function () {
|
|
return function (css) {
|
|
css.walkDecls(/^unicode-range$/i, function (node) {
|
|
node.prop = 'unicode-range';
|
|
node.value = (0, _postcssValueParser2.default)(node.value).walk(function (child) {
|
|
if (child.type === 'word') {
|
|
child.value = unicode(child.value.toLowerCase());
|
|
}
|
|
return false;
|
|
}).toString();
|
|
});
|
|
};
|
|
});
|
|
module.exports = exports['default']; |