added tool to generate a wiki table from the variable household XML file

tools/variableHousoldToWikiTable.py

+#!/usr/bin/python3
+
+import xml.etree.ElementTree as ET
+
+
+def findCommonPrefix(string1, string2):
+    length = min( len(string1), len(string2) )
+    for i in range(length):
+      if string1[i] != string2[i] :
+        return string1[0:i-1]
+    if len(string1) < len(string2) :
+      return string1
+    else :
+      return string2
+
+def parseDirectory(directory, cwd, stripDescriptionPrefix) :
+      
+  for elem in directory.findall("{https://github.com/ChimeraTK/ApplicationCore}variable") :
+    varname = elem.attrib["name"]
+    vartype = elem.find("{https://github.com/ChimeraTK/ApplicationCore}value_type").text
+    vardirection = elem.find("{https://github.com/ChimeraTK/ApplicationCore}direction").text
+    varunit = elem.find("{https://github.com/ChimeraTK/ApplicationCore}unit").text
+    vardescription = elem.find("{https://github.com/ChimeraTK/ApplicationCore}description").text
+    if not vardescription :
+      vardescription = ""
+    varlength = int(elem.find("{https://github.com/ChimeraTK/ApplicationCore}numberOfElements").text)
+    
+    if vardirection == "control_system_to_application" :
+      thetype=vartype+" (ro)"
+    else :
+      thetype=vartype
+    if varlength > 1 :
+      thetype=thetype+" ("+str(varlength)+" elements)"
+
+    print("| "+varname+" | "+vartype+" | "+thetype+" | "+vardescription[stripDescriptionPrefix:]+" |")
+
+  for elem in directory.findall("{https://github.com/ChimeraTK/ApplicationCore}directory") :
+    dirdescription = ""
+    for subelem in elem.findall("{https://github.com/ChimeraTK/ApplicationCore}variable") :
+      vardescription = subelem.find("{https://github.com/ChimeraTK/ApplicationCore}description").text
+      if not vardescription :
+        vardescription = ""
+      if dirdescription == "" :
+        dirdescription = vardescription
+      else :
+        dirdescription = findCommonPrefix(dirdescription, vardescription)
+
+    print("^ "+cwd+"/"+elem.attrib["name"]+" - "+dirdescription[:-2]+" ||||")
+
+    parseDirectory(elem, cwd+"/"+elem.attrib["name"], len(dirdescription)+1)
+      
+
+print("^ PV name           ^ Type          ^ Unit    ^ Description   ^")
+    
+tree = ET.parse("llrfctrl.xml")
+root = tree.getroot()
+parseDirectory(root,"",0)