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backend/node_modules/svgo/plugins/cleanupAttrs.js

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+'use strict';
+
+exports.name = 'cleanupAttrs';
+exports.description =
+  'cleanups attributes from newlines, trailing and repeating spaces';
+
+const regNewlinesNeedSpace = /(\S)\r?\n(\S)/g;
+const regNewlines = /\r?\n/g;
+const regSpaces = /\s{2,}/g;
+
+/**
+ * Cleanup attributes values from newlines, trailing and repeating spaces.
+ *
+ * @author Kir Belevich
+ *
+ * @type {import('./plugins-types').Plugin<'cleanupAttrs'>}
+ */
+exports.fn = (root, params) => {
+  const { newlines = true, trim = true, spaces = true } = params;
+  return {
+    element: {
+      enter: (node) => {
+        for (const name of Object.keys(node.attributes)) {
+          if (newlines) {
+            // new line which requires a space instead of themself
+            node.attributes[name] = node.attributes[name].replace(
+              regNewlinesNeedSpace,
+              (match, p1, p2) => p1 + ' ' + p2,
+            );
+            // simple new line
+            node.attributes[name] = node.attributes[name].replace(
+              regNewlines,
+              '',
+            );
+          }
+          if (trim) {
+            node.attributes[name] = node.attributes[name].trim();
+          }
+          if (spaces) {
+            node.attributes[name] = node.attributes[name].replace(
+              regSpaces,
+              ' ',
+            );
+          }
+        }
+      },
+    },
+  };
+};