aaac7fed
 liuqimichale
add
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'use strict';
exports.type = 'perItem';
exports.active = false;
exports.description = 'removes viewBox attribute when possible (disabled by default)';
var regViewBox = /^0\s0\s([\-+]?\d*\.?\d+([eE][\-+]?\d+)?)\s([\-+]?\d*\.?\d+([eE][\-+]?\d+)?)$/,
viewBoxElems = ['svg', 'pattern'];
/**
* Remove viewBox attr which coincides with a width/height box.
*
* @see http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute
*
* @example
* <svg width="100" height="50" viewBox="0 0 100 50">
* ⬇
* <svg width="100" height="50">
*
* @param {Object} item current iteration item
* @return {Boolean} if false, item will be filtered out
*
* @author Kir Belevich
*/
exports.fn = function(item) {
if (
item.isElem(viewBoxElems) &&
item.hasAttr('viewBox') &&
item.hasAttr('width') &&
item.hasAttr('height')
) {
var match = item.attr('viewBox').value.match(regViewBox);
if (match) {
if (
item.attr('width').value === match[1] &&
item.attr('height').value === match[3]
) {
item.removeAttr('viewBox');
}
}
}
};
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