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var OptimizationLevel = require('../../../options/optimization-level').OptimizationLevel;
function isNegative(value) {
return value && value[1][0] == '-' && parseFloat(value[1]) < 0;
}
var plugin = {
level1: {
property: function padding(_rule, property, options) {
var values = property.value;
// remove multiple zeros
if (values.length == 4 && values[0][1] === '0' && values[1][1] === '0' && values[2][1] === '0' && values[3][1] === '0') {
property.value.splice(1);
property.dirty = true;
}
// remove negative paddings
if (options.level[OptimizationLevel.One].removeNegativePaddings
&& (
isNegative(property.value[0])
|| isNegative(property.value[1])
|| isNegative(property.value[2])
|| isNegative(property.value[3])
)) {
property.unused = true;
}
}
}
};
module.exports = plugin;