functionOptimiser.js
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'use strict';
exports.__esModule = true;
var _postcss = require('postcss');
var _postcssValueParser = require('postcss-value-parser');
var _postcssValueParser2 = _interopRequireDefault(_postcssValueParser);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function reduceCalcWhitespaces(node) {
if (node.type === 'space') {
node.value = ' ';
} else if (node.type === 'function') {
node.before = node.after = '';
}
}
function reduceWhitespaces(node) {
if (node.type === 'space') {
node.value = ' ';
} else if (node.type === 'div') {
node.before = node.after = '';
} else if (node.type === 'function') {
node.before = node.after = '';
if (node.value === 'calc') {
_postcssValueParser2.default.walk(node.nodes, reduceCalcWhitespaces);
return false;
}
}
}
function transformDecls(decl) {
if (!/filter/.test(decl.prop)) {
decl.value = (0, _postcssValueParser2.default)(decl.value).walk(reduceWhitespaces).toString();
}
}
exports.default = (0, _postcss.plugin)('cssnano-function-optimiser', function () {
return function (css) {
return css.walkDecls(transformDecls);
};
});
module.exports = exports['default'];