generic menu printing functions

input/projects/3d-printing.md

 Here are all the articles that are part of my 3D printing series:
 
 <!--%
-print3DPrintingMenu()
+printMenuPositional()
 %-->
 
 If you're interested in my 3D print designs, take a look [at my Thingiverse account](https://www.thingiverse.com/xythobuz/designs) or my [Git Repository](https://git.xythobuz.de/thomas/3d-print-designs).

input/projects/input_devices.md

 Here you can find all pages in this category.
 
 <!--%
-printInputDevicesMenu()
+printMenuDate()
 %-->
 
 The following pages are also related to this topic.
 
 <!--%
-printInputDevicesRelatedMenu()
+mpages = [p for p in pages if p.get("show_in_input_devices", "false") == "true"]
+printMenuDate(mpages)
 %-->

input/projects/quadcopters.md

 Of course I'm not flying illegally, I have a model flight insurance and I am a registered UAV pilot in the European Union! 👮
 
 <!--%
-printQuadcopterMenu()
+printMenuPositional()
 %-->
 
 The following projects and blog posts are also related to my Quadcopter endeavours.
 
 <!--%
-printQuadcopterRelatedMenu()
+mpages = [p for p in pages if p.get("show_in_quadcopters", "false") == "true"]
+printMenuDate(mpages)
 %-->
 
 You can find all my Betaflight configuration dumps and related files [here](https://git.xythobuz.de/thomas/copter-configs).

input/projects/smarthome.md

 The pages in this category document different parts of my setup at home.
 
 <!--%
-printSmarthomeMenu()
+printMenuPositional()
 %-->

macros.py

 
     print("</ul>")
 
-def print3DPrintingMenu():
-    mpages = [p for p in pages if p.get("parent", "") == "3d-printing" and p.lang == "en"]
-    mpages.sort(key=lambda p: int(p["position"]))
-
-    print("<ul id='menulist'>")
-    for p in mpages:
-        printMenuItem(p, False, True, True)
-    print("</ul>")
-
-def printInputDevicesMenu():
-    mpages = [p for p in pages if p.get("parent", "") == "input_devices" and p.lang == "en"]
-    mpages.sort(key=lambda p: [p.get("date", "9999-01-01")], reverse = True)
-
-    print("<ul id='menulist'>")
-    for p in mpages:
-        printMenuItem(p, False, True, True)
-    print("</ul>")
-
-def printInputDevicesRelatedMenu():
-    mpages = [p for p in pages if p.get("show_in_input_devices", "false") == "true"]
-    mpages.sort(key=lambda p: [p.get("date", "9999-01-01")], reverse = True)
-
-    print("<ul id='menulist'>")
-    for p in mpages:
-        printMenuItem(p, False, True, True)
-    print("</ul>")
-
-def printSmarthomeMenu():
-    mpages = [p for p in pages if p.get("parent", "") == "smarthome" and p.lang == "en"]
-    mpages.sort(key=lambda p: int(p["position"]))
-
-    print("<ul id='menulist'>")
-    for p in mpages:
-        printMenuItem(p, False, True, True)
-    print("</ul>")
-
-def printQuadcopterMenu():
-    mpages = [p for p in pages if p.get("parent", "") == "quadcopters" and p.lang == "en"]
-    mpages.sort(key=lambda p: int(p["position"]))
-
-    print("<ul id='menulist'>")
-    for p in mpages:
-        printMenuItem(p, False, True, True)
-    print("</ul>")
-
-def printQuadcopterRelatedMenu():
-    mpages = [p for p in pages if p.get("show_in_quadcopters", "false") == "true"]
-    mpages.sort(key=lambda p: [p.get("date", "9999-01-01")], reverse = True)
-
-    print("<ul id='menulist'>")
-    for p in mpages:
-        printMenuItem(p, False, True, True)
-    print("</ul>")
+def printMenu(mpages = None, sortKey = None, sortReverse = True):
+    if mpages == None:
+        mpages = [p for p in pages if p.get("parent", "__none__") == page["child-id"] and p.lang == "en"]
+    if sortKey != None:
+        mpages.sort(key = sortKey, reverse = sortReverse)
+
+    if len(mpages) > 0:
+        print("<ul id='menulist'>")
+        for p in mpages:
+            printMenuItem(p, False, True, True)
+        print("</ul>")
+
+def printMenuDate(mpages = None, sortReverse = True):
+    sortKey = lambda p: p["date"]
+    printMenu(mpages, sortKey, sortReverse)
+
+def printMenuPositional(mpages = None):
+    printMenu(mpages, lambda p: int(p["position"]), False)
 
 def printRobotMenuEnglish():
     mpages = [p for p in pages if p.get("parent", "") == "xyrobot" and p.lang == "en"]