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node_modules/less/lib/less-browser/utils.js

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+
+/** @param {string} href */
+export function extractId(href) {
+    return href.replace(/^[a-z-]+:\/+?[^/]+/, '')  // Remove protocol & domain
+        .replace(/[?&]livereload=\w+/, '')        // Remove LiveReload cachebuster
+        .replace(/^\//, '')                         // Remove root /
+        .replace(/\.[a-zA-Z]+$/, '')                // Remove simple extension
+        .replace(/[^.\w-]+/g, '-')                 // Replace illegal characters
+        .replace(/\./g, ':');                       // Replace dots with colons(for valid id)
+}
+
+/**
+ * @param {Record<string, *>} options
+ * @param {HTMLElement | null} tag
+ */
+export function addDataAttr(options, tag) {
+    if (!tag) {return;} // in case of tag is null or undefined
+    for (const opt in tag.dataset) {
+        if (Object.prototype.hasOwnProperty.call(tag.dataset, opt)) {
+            if (opt === 'env' || opt === 'dumpLineNumbers' || opt === 'rootpath' || opt === 'errorReporting') {
+                options[opt] = tag.dataset[opt];
+            } else {
+                try {
+                    options[opt] = JSON.parse(tag.dataset[opt]);
+                }
+                catch (_) {}
+            }
+        }
+    }
+}