moebius#342: Columns are not sorted correctly (Natural Sort algorithm)

Issue #31
https://github.com/MoonchildProductions/moebius/pull/342

1 files changed, 106 insertions, 0 deletions

diff --git a/devtools/client/shared/natural-sort.js b/devtools/client/shared/natural-sort.js
new file mode 100644
index 000000000..904d76431
--- /dev/null
+++ b/devtools/client/shared/natural-sort.js
@@ -0,0 +1,106 @@
+/*
+ * Natural Sort algorithm for Javascript - Version 0.8.1 - Released under MIT license
+ * Author: Jim Palmer (based on chunking idea from Dave Koelle)
+ *
+ * Includes pull request to move regexes out of main function for performance
+ * increases.
+ *
+ * Repository:
+ *   https://github.com/overset/javascript-natural-sort/
+ */
+
+"use strict";
+
+var re = /(^([+\-]?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?(?=\D|\s|$))|^0x[\da-fA-F]+$|\d+)/g;
+var sre = /^\s+|\s+$/g;   // trim pre-post whitespace
+var snre = /\s+/g;        // normalize all whitespace to single ' ' character
+
+// eslint-disable-next-line
+var dre = /(^([\w ]+,?[\w ]+)?[\w ]+,?[\w ]+\d+:\d+(:\d+)?[\w ]?|^\d{1,4}[\/\-]\d{1,4}[\/\-]\d{1,4}|^\w+, \w+ \d+, \d{4})/;
+var hre = /^0x[0-9a-f]+$/i;
+var ore = /^0/;
+var b0re = /^\0/;
+var e0re = /\0$/;
+
+exports.naturalSortCaseSensitive =
+function naturalSortCaseSensitive(a, b) {
+  return naturalSort(a, b, false);
+};
+
+exports.naturalSortCaseInsensitive =
+function naturalSortCaseInsensitive(a, b) {
+  return naturalSort(a, b, true);
+};
+
+/**
+ * Sort numbers, strings, IP Addresses, Dates, Filenames, version numbers etc.
+ * "the way humans do."
+ *
+ * This function should only be called via naturalSortCaseSensitive and
+ * naturalSortCaseInsensitive.
+ *
+ * e.g. [3, 2, 1, 10].sort(naturalSort)
+ *
+ * @param  {Object} a
+ *         Passed in by Array.sort(a, b)
+ * @param  {Object} b
+ *         Passed in by Array.sort(a, b)
+ * @param  {Boolean} insensitive
+ *         Should the search be case insensitive?
+ */
+function naturalSort(a, b, insensitive) {
+  // convert all to strings strip whitespace
+  let i = function (s) {
+    return (insensitive && ("" + s).toLowerCase() || "" + s)
+                                   .replace(sre, "");
+  };
+  let x = i(a) || "";
+  let y = i(b) || "";
+  // chunk/tokenize
+  let xN = x.replace(re, "\0$1\0").replace(e0re, "").replace(b0re, "").split("\0");
+  let yN = y.replace(re, "\0$1\0").replace(e0re, "").replace(b0re, "").split("\0");
+  // numeric, hex or date detection
+  let xD = parseInt(x.match(hre), 16) || (xN.length !== 1 && Date.parse(x));
+  let yD = parseInt(y.match(hre), 16) || xD && y.match(dre) && Date.parse(y) || null;
+  let normChunk = function (s, l) {
+    // normalize spaces; find floats not starting with '0', string or 0 if
+    // not defined (Clint Priest)
+    return (!s.match(ore) || l == 1) &&
+           parseFloat(s) || s.replace(snre, " ").replace(sre, "") || 0;
+  };
+  let oFxNcL;
+  let oFyNcL;
+
+  // first try and sort Hex codes or Dates
+  if (yD) {
+    if (xD < yD) {
+      return -1;
+    } else if (xD > yD) {
+      return 1;
+    }
+  }
+
+  // natural sorting through split numeric strings and default strings
+  // eslint-disable-next-line
+  for (let cLoc = 0, xNl = xN.length, yNl = yN.length, numS = Math.max(xNl, yNl); cLoc < numS; cLoc++) {
+    oFxNcL = normChunk(xN[cLoc] || "", xNl);
+    oFyNcL = normChunk(yN[cLoc] || "", yNl);
+
+    // handle numeric vs string comparison - number < string - (Kyle Adams)
+    if (isNaN(oFxNcL) !== isNaN(oFyNcL)) {
+      return isNaN(oFxNcL) ? 1 : -1;
+    }
+    // if unicode use locale comparison
+    // eslint-disable-next-line
+    if (/[^\x00-\x80]/.test(oFxNcL + oFyNcL) && oFxNcL.localeCompare) {
+      let comp = oFxNcL.localeCompare(oFyNcL);
+      return comp / Math.abs(comp);
+    }
+    if (oFxNcL < oFyNcL) {
+      return -1;
+    } else if (oFxNcL > oFyNcL) {
+      return 1;
+    }
+  }
+  return null;
+}