fix issue #2894: sort alphabetical will now parse float values starting at all titles and compare these.

browser/main/NoteList/index.js

@@ -26,11 +26,30 @@ const { remote } = require('electron')
 const { dialog } = remote
 const WP_POST_PATH = '/wp/v2/posts'
 
+const matchStartingTitleNumber = new RegExp('^([0-9]*\.?[0-9]+).*$')
+
 function sortByCreatedAt (a, b) {
   return new Date(b.createdAt) - new Date(a.createdAt)
 }
 
 function sortByAlphabetical (a, b) {
+  const matchA = matchStartingTitleNumber.exec(a.title)
+  const matchB = matchStartingTitleNumber.exec(b.title)
+
+  if (matchA && matchA.length === 2 && matchB && matchB.length === 2) {
+    // Both note titles are starting with a float. We will compare it now.
+    const floatA = parseFloat(matchA[1])
+    const floatB = parseFloat(matchB[1])
+
+    if (floatA < floatB) {
+      return -1
+    } else if (floatA > floatB) {
+      return 1
+    }
+
+    // The float values are equal. We will compare the full title.
+  }
+
   return a.title.localeCompare(b.title)
 }