It is now possible to remove syndromes by SYN_CLASS.

NEWS

@@ -13,6 +13,11 @@ DFHack Future
                 allows the user to add thoughts to creatures.
             devel/
                 all-bob.lua: renames everyone Bob to help test interaction-trigger
+    Misc improvements:
+        lua/syndrome-util.lua
+            now you can remove syndromes by SYN_CLASS
+        scripts/modtools/add-syndrome.lua
+            now you can remove syndromes by SYN_CLASS
 
 DFHack 0.40.15-r1
     Fixes:

library/lua/syndrome-util.lua

@@ -45,6 +45,27 @@ function eraseSyndrome(unit,syndromeId,oldestFirst)
  return false
 end
 
+local function eraseSyndromeClassHelper(unit,synclass)
+ for i,unitSyndrome in ipairs(unit.syndromes.active) do
+  local syndrome = df.syndrome.find(unitSyndrome.type)
+  for _,class in ipairs(syndrome.syn_class) do
+   if class.value == synclass then
+    unit.syndromes.active:erase(i)
+    return true
+   end
+  end
+ end
+ return false
+end
+
+function eraseSyndromeClass(unit,synclass)
+ local count=0
+ while eraseSyndromeClassHelper(unit,synclass) do
+  count = count+1
+ end
+ return count
+end
+
 function eraseSyndromes(unit,syndromeId)
  local count=0
  while eraseSyndrome(unit,syndromeId,true) do

scripts/modtools/add-syndrome.lua

@@ -13,7 +13,8 @@ validArgs = validArgs or utils.invert({
  'eraseOldest',
  'eraseAll',
  'target',
- 'skipImmunities'
+ 'skipImmunities',
+ 'eraseClass'
 })
 
 local args = utils.processArgs({...}, validArgs)
@@ -39,6 +40,8 @@ arguments:
         instead of adding an instance of the syndrome, erase one
     -eraseAll
         erase every instance of the syndrome
+    -eraseClass SYN_CLASS
+        erase every instance of every syndrome with the given SYN_CLASS
     -target id
         the unit id of the target unit
         examples:
@@ -50,6 +53,21 @@ arguments:
  return
 end
 
+if not args.target then
+ error 'Specify a target.'
+end
+local targ = df.unit.find(tonumber(args.target))
+if not targ then
+ error ('Could not find target: ' .. args.target)
+end
+args.target = targ
+
+if args.eraseClass then
+ local count = syndromeUtil.eraseSyndromeClass(args.target, args.eraseClass)
+ --print('deleted ' .. tostring(count) .. ' syndromes')
+ return
+end
+
 if args.resetPolicy then
  args.resetPolicy = syndromeUtil.ResetPolicy[args.resetPolicy]
  if not args.resetPolicy then
@@ -73,15 +91,6 @@ if not syndrome then
 end
 args.syndrome = syndrome
 
-if not args.target then
- error 'Specify a target.'
-end
-local targ = df.unit.find(tonumber(args.target))
-if not targ then
- error ('Could not find target: ' .. args.target)
-end
-args.target = targ
-
 if args.erase then
  syndromeUtil.eraseSyndrome(args.target,args.syndrome.id,args.eraseOldest)
  return