1 files changed, 148 insertions, 0 deletions
diff --git a/devtools/shared/natural-sort.js b/devtools/shared/natural-sort.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Based on the Natural Sort algorithm for Javascript - Version 0.8.1 - adapted
+ * for Firefox DevTools and released under the MIT license.
+ *
+ * Author: Jim Palmer (based on chunking idea from Dave Koelle)
+ *
+ * Repository:
+ *   https://github.com/overset/javascript-natural-sort/
+ */
+
+"use strict";
+
+const tokenizeNumbersRx =
+  /(^([+\-]?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?(?=\D|\s|$))|^0x[\da-fA-F]+$|\d+)/g;
+const hexRx = /^0x[0-9a-f]+$/i;
+const startsWithNullRx = /^\0/;
+const endsWithNullRx = /\0$/;
+const whitespaceRx = /\s+/g;
+const startsWithZeroRx = /^0/;
+
+/**
+ * Sort numbers, strings, IP Addresses, Dates, Filenames, version numbers etc.
+ * "the way humans do."
+ *
+ * @param  {Object} a
+ *         Passed in by Array.sort(a, b)
+ * @param  {Object} b
+ *         Passed in by Array.sort(a, b)
+ * @param  {String} sessionString
+ *         Client-side value of storage-expires-session l10n string.
+ *         Since this function can be called from both the client and the server,
+ *         and given that client and server might have different locale, we can't compute
+ *         the localized string directly from here.
+ * @param  {Boolean} insensitive
+ *         Should the search be case insensitive?
+ */
+// eslint-disable-next-line complexity
+function naturalSort(a = "", b = "", sessionString, insensitive = false) {
+  // Ensure we are working with trimmed strings
+  a = (a + "").trim();
+  b = (b + "").trim();
+
+  if (insensitive) {
+    a = a.toLowerCase();
+    b = b.toLowerCase();
+    sessionString = sessionString.toLowerCase();
+  }
+
+  // Chunk/tokenize - Here we split the strings into arrays or strings and
+  // numbers.
+  const aChunks = a
+    .replace(tokenizeNumbersRx, "\0$1\0")
+    .replace(startsWithNullRx, "")
+    .replace(endsWithNullRx, "")
+    .split("\0");
+  const bChunks = b
+    .replace(tokenizeNumbersRx, "\0$1\0")
+    .replace(startsWithNullRx, "")
+    .replace(endsWithNullRx, "")
+    .split("\0");
+
+  // Hex or date detection.
+  const aHexOrDate =
+    parseInt(a.match(hexRx), 16) || (aChunks.length !== 1 && Date.parse(a));
+  const bHexOrDate =
+    parseInt(b.match(hexRx), 16) || (bChunks.length !== 1 && Date.parse(b));
+
+  if (
+    (aHexOrDate || bHexOrDate) &&
+    (a === sessionString || b === sessionString)
+  ) {
+    // We have a date and a session string. Move "Session" above the date
+    // (for session cookies)
+    if (a === sessionString) {
+      return -1;
+    } else if (b === sessionString) {
+      return 1;
+    }
+  }
+
+  // Try and sort Hex codes or Dates.
+  if (aHexOrDate && bHexOrDate) {
+    if (aHexOrDate < bHexOrDate) {
+      return -1;
+    } else if (aHexOrDate > bHexOrDate) {
+      return 1;
+    }
+    return 0;
+  }
+
+  // Natural sorting through split numeric strings and default strings
+  const aChunksLength = aChunks.length;
+  const bChunksLength = bChunks.length;
+  const maxLen = Math.max(aChunksLength, bChunksLength);
+
+  for (let i = 0; i < maxLen; i++) {
+    const aChunk = normalizeChunk(aChunks[i] || "", aChunksLength);
+    const bChunk = normalizeChunk(bChunks[i] || "", bChunksLength);
+
+    // Handle numeric vs string comparison - number < string
+    if (isNaN(aChunk) !== isNaN(bChunk)) {
+      return isNaN(aChunk) ? 1 : -1;
+    }
+
+    // If unicode use locale comparison
+    // eslint-disable-next-line no-control-regex
+    if (/[^\x00-\x80]/.test(aChunk + bChunk) && aChunk.localeCompare) {
+      const comp = aChunk.localeCompare(bChunk);
+      return comp / Math.abs(comp);
+    }
+    if (aChunk < bChunk) {
+      return -1;
+    } else if (aChunk > bChunk) {
+      return 1;
+    }
+  }
+  return null;
+}
+
+// Normalize spaces; find floats not starting with '0', string or 0 if not
+// defined
+const normalizeChunk = function (str, length) {
+  return (
+    ((!str.match(startsWithZeroRx) || length == 1) && parseFloat(str)) ||
+    str.replace(whitespaceRx, " ").trim() ||
+    0
+  );
+};
+
+exports.naturalSortCaseSensitive = function naturalSortCaseSensitive(
+  a,
+  b,
+  sessionString
+) {
+  return naturalSort(a, b, sessionString, false);
+};
+
+exports.naturalSortCaseInsensitive = function naturalSortCaseInsensitive(
+  a,
+  b,
+  sessionString
+) {
+  return naturalSort(a, b, sessionString, true);
+};