diff --git a/.gitignore b/.gitignore
index ad2923224b946003054ce5b557f7e4f89ee5746c..6842926829cc7a47b3412e82d102d0f6a49eb958 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@
 !.vscode/tasks.json
 bin/
 obj/
+__pycache__
 
 *.vcxproj.user
 *.spv
diff --git a/doc/common/build.py b/doc/common/build.py
index 1ce0c0830d7883a3cf56b3501de9e21a0723836c..bf53b619044ad24b8808b7b01e0e86040f1374c3 100644
--- a/doc/common/build.py
+++ b/doc/common/build.py
@@ -1,69 +1,8 @@
+import commonFunctions
+
 import os
 import sys
 import shutil
-from shutil import get_terminal_size
-
-ColorBlack = "\u001b[30m"
-ColorRed = "\u001b[31m"
-ColorGreen = "\u001b[32m"
-ColorYellow = "\u001b[33m"
-ColorBlue = "\u001b[34m"
-ColorMagenta = "\u001b[35m"
-ColorCyan = "\u001b[36m"
-ColorWhite = "\u001b[37m"
-ColorReset = "\u001b[0m"
-
-
-def printInfo(message):
-    print(ColorBlue, message, ColorReset)
-    pass
-
-
-def printWarning(message):
-    print(ColorYellow, message, ColorReset)
-    pass
-
-
-def printError(message):
-    print(ColorRed, message, ColorReset)
-    pass
-
-
-def printStatus(message):
-    print(ColorCyan, message, ColorReset)
-    pass
-
-
-def printSuccess(message):
-    print(ColorGreen, message, ColorReset)
-    pass
-
-
-def beginPart(name):
-    w = int(get_terminal_size([50, 1]).columns * 0.75)
-    namePadding = int((w - len(name)) / 2)
-
-    printInfo("-" * w)
-    printInfo((" " * namePadding) + name + (" " * namePadding))
-    printInfo("-" * w)
-    pass
-
-
-def command(cmd) -> int:
-    printStatus(cmd)
-
-    res = os.system(cmd)
-
-    str = f"Done, action result: {res}"
-
-    if(res == 0):
-        printSuccess(str)
-    else:
-        printWarning(str)
-
-    return res
-    pass
-
 
 argc = len(sys.argv)
 
@@ -91,18 +30,16 @@ if good == 0:
     exit()
 
 cmdLatex = "texfot -tee=\".\\tex.fot\" pdflatex -output-format=pdf -interaction=nonstopmode -file-line-error document.tex"
-cmdGlossaries = "makeglossaries document"
-cmdBib = "bibtex document"
 
 beginPart("Latex first run")
 success = command(cmdLatex)
 
 if success == 0:
     beginPart("Bibtex")
-    command(cmdBib)
+    command("bibtex document")
 
     beginPart("Makeglossaries")
-    command(cmdGlossaries)
+    command("makeglossaries document")
 
     beginPart("Latex second run")
     success = command(cmdLatex)
diff --git a/doc/common/commonFunctions.py b/doc/common/commonFunctions.py
new file mode 100644
index 0000000000000000000000000000000000000000..e8cc77d36eae6671016d4a0c984315aee4b934cc
--- /dev/null
+++ b/doc/common/commonFunctions.py
@@ -0,0 +1,65 @@
+import os
+import subprocess
+import sys
+from shutil import get_terminal_size
+
+ColorBlack = "\u001b[30m"
+ColorRed = "\u001b[31m"
+ColorGreen = "\u001b[32m"
+ColorYellow = "\u001b[33m"
+ColorBlue = "\u001b[34m"
+ColorMagenta = "\u001b[35m"
+ColorCyan = "\u001b[36m"
+ColorWhite = "\u001b[37m"
+ColorReset = "\u001b[0m"
+
+
+def printInfo(message):
+    print(ColorBlue, message, ColorReset)
+    pass
+
+
+def printWarning(message):
+    print(ColorYellow, message, ColorReset)
+    pass
+
+
+def printError(message):
+    print(ColorRed, message, ColorReset)
+    pass
+
+
+def printStatus(message):
+    print(ColorCyan, message, ColorReset)
+    pass
+
+
+def printSuccess(message):
+    print(ColorGreen, message, ColorReset)
+    pass
+
+
+def beginPart(name):
+    w = int(get_terminal_size([50, 1]).columns * 0.75)
+    namePadding = int((w - len(name)) / 2)
+
+    printInfo("-" * w)
+    printInfo((" " * namePadding) + name + (" " * namePadding))
+    printInfo("-" * w)
+    pass
+
+
+def command(cmd, input=sys.stdin) -> int:
+    printStatus(cmd)
+
+    res = subprocess.run(cmd, stdin=input)
+
+    str = f"Done, action result: {res.returncode}"
+
+    if(res.returncode == 0):
+        printSuccess(str)
+    else:
+        printWarning(str)
+
+    return res.returncode
+    pass
diff --git a/doc/common/spell-check.py b/doc/common/spell-check.py
new file mode 100644
index 0000000000000000000000000000000000000000..68a0b05faebad60a639b024a4431b50d281350f4
--- /dev/null
+++ b/doc/common/spell-check.py
@@ -0,0 +1,25 @@
+from commonFunctions import *
+
+import os
+import io
+import sys
+import subprocess
+
+beginPart("Spell Checking")
+
+dryRun = "-dry" in sys.argv
+
+for root, subdirs, files in os.walk("."):
+    res = []
+
+    for file in files:
+        if os.path.splitext(file)[1] == ".tex":
+            filePath = os.path.join(root, file)
+
+            if file in sys.argv or filePath in sys.argv:
+                printWarning("Ignoring file " + filePath)
+            else:
+                printInfo("Checking " + filePath)
+                if not dryRun:
+                    res.append(subprocess.run("aspell --lang=De-de --mode=tex -a",
+                                              stdin=io.open(filePath), stdout=io.open("res", "w")))