new netdisco-util.js for js utility functions, move capitalizeFirstLetter to new file

Netdisco/share/public/javascripts/netdisco-util.js

@@ -0,0 +1,62 @@
+/**
+ * Netdisco utility functions
+ * @version 0.0.1
+ * @license bsd
+ * @copyright 2014 Netdisco developers
+ */
+
+/** Capitalize first letter of a string. */
+
+function capitalizeFirstLetter(string) {
+  return string.charAt(0).toUpperCase() + string.slice(1);
+}
+
+/**
+ * Formats a MAC address string.
+ * @function
+ * @param {string} macaddr - MAC address provided in IEEE, Microsoft, or Sun format.
+ * @param {string} format - Format to return must be either 'IEEE', 'Cisco', 'Microsoft', or 'Sun'.
+ */
+
+function formatMacAddress(macaddr, format) {
+  var mac = /^([0-9A-F]{2}[:-]){5}([0-9A-F]{2})$/i;
+  var fmt = /^(IEEE|Cisco|Microsoft|Sun)$/i;
+  var fmac = '';
+
+  if (!mac.test(macaddr) || !fmt.test(format)) {
+    return '';
+  } else {
+    macaddr = macaddr.replace(/[:-]/g, "").toLowerCase();
+    format = format.toLowerCase();
+    switch (format) {
+      case 'ieee':
+        fmac = convertMacAddress(macaddr, ":", 2).toUpperCase();
+        break;
+
+      case 'cisco':
+        fmac = convertMacAddress(macaddr, ".", 4);
+        break;
+
+      case 'microsoft':
+        fmac = convertMacAddress(macaddr, "-", 2).toUpperCase();
+        break;
+
+      default:
+        fmac = convertMacAddress(macaddr, ":", 2);
+        break;
+    }
+  }
+
+  function convertMacAddress(string, chr, nth) {
+    var retval = '';
+    for (var i = 0; i < string.length; i++) {
+      if (i > 0 && i % nth == 0)
+        retval += chr;
+      retval += string.charAt(i);
+    }
+
+    return retval;
+  }
+
+  return fmac;
+}