diff --git a/Ledger/RawLedger.hs b/Ledger/RawLedger.hs
index 25dcb98e7..930383cc6 100644
--- a/Ledger/RawLedger.hs
+++ b/Ledger/RawLedger.hs
@@ -29,6 +29,26 @@ instance Show RawLedger where
              -- ++ (show $ rawLedgerTransactions l)
              where accounts = flatten $ rawLedgerAccountNameTree l
 
+rawLedgerEmpty :: RawLedger
+rawLedgerEmpty = RawLedger { modifier_entries = []
+                           , periodic_entries = []
+                           , entries = []
+                           , open_timelog_entries = []
+                           , final_comment_lines = []
+                           }
+
+addEntry :: Entry -> RawLedger -> RawLedger
+addEntry e l0 = l0 { entries = e : (entries l0) }
+
+addModifierEntry :: ModifierEntry -> RawLedger -> RawLedger
+addModifierEntry me l0 = l0 { modifier_entries = me : (modifier_entries l0) }
+
+addPeriodicEntry :: PeriodicEntry -> RawLedger -> RawLedger
+addPeriodicEntry pe l0 = l0 { periodic_entries = pe : (periodic_entries l0) }
+
+addTimeLogEntry :: TimeLogEntry -> RawLedger -> RawLedger
+addTimeLogEntry tle l0 = l0 { open_timelog_entries = tle : (open_timelog_entries l0) }
+
 rawLedgerTransactions :: RawLedger -> [Transaction]
 rawLedgerTransactions = txnsof . entries
     where txnsof es = concat $ map flattenEntry $ zip es [1..]
@@ -54,16 +74,16 @@ filterRawLedger span pats clearedonly realonly =
 
 -- | Keep only entries whose description matches the description patterns.
 filterRawLedgerEntriesByDescription :: [String] -> RawLedger -> RawLedger
-filterRawLedgerEntriesByDescription pats (RawLedger ms ps es f) = 
-    RawLedger ms ps (filter matchdesc es) f
+filterRawLedgerEntriesByDescription pats (RawLedger ms ps es tls f) = 
+    RawLedger ms ps (filter matchdesc es) tls f
     where matchdesc = matchpats pats . edescription
 
 -- | Keep only entries which fall between begin and end dates. 
 -- We include entries on the begin date and exclude entries on the end
 -- date, like ledger.  An empty date string means no restriction.
 filterRawLedgerEntriesByDate :: DateSpan -> RawLedger -> RawLedger
-filterRawLedgerEntriesByDate (DateSpan begin end) (RawLedger ms ps es f) = 
-    RawLedger ms ps (filter matchdate es) f
+filterRawLedgerEntriesByDate (DateSpan begin end) (RawLedger ms ps es tls f) = 
+    RawLedger ms ps (filter matchdate es) tls f
     where 
       matchdate e = (maybe True (edate e>=) begin) && (maybe True (edate e<) end)
 
@@ -71,21 +91,21 @@ filterRawLedgerEntriesByDate (DateSpan begin end) (RawLedger ms ps es f) =
 -- do no filtering.
 filterRawLedgerEntriesByClearedStatus :: Bool -> RawLedger -> RawLedger
 filterRawLedgerEntriesByClearedStatus False l = l
-filterRawLedgerEntriesByClearedStatus True  (RawLedger ms ps es f) =
-    RawLedger ms ps (filter estatus es) f
+filterRawLedgerEntriesByClearedStatus True  (RawLedger ms ps es tls f) =
+    RawLedger ms ps (filter estatus es) tls f
 
 -- | Strip out any virtual transactions, if the flag is true, otherwise do
 -- no filtering.
 filterRawLedgerTransactionsByRealness :: Bool -> RawLedger -> RawLedger
 filterRawLedgerTransactionsByRealness False l = l
-filterRawLedgerTransactionsByRealness True (RawLedger ms ps es f) =
-    RawLedger ms ps (map filtertxns es) f
+filterRawLedgerTransactionsByRealness True (RawLedger ms ps es tls f) =
+    RawLedger ms ps (map filtertxns es) tls f
     where filtertxns e@Entry{etransactions=ts} = e{etransactions=filter isReal ts}
 
 -- | Keep only entries which affect accounts matched by the account patterns.
 filterRawLedgerEntriesByAccount :: [String] -> RawLedger -> RawLedger
-filterRawLedgerEntriesByAccount apats (RawLedger ms ps es f) =
-    RawLedger ms ps (filter (any (matchpats apats . taccount) . etransactions) es) f
+filterRawLedgerEntriesByAccount apats (RawLedger ms ps es tls f) =
+    RawLedger ms ps (filter (any (matchpats apats . taccount) . etransactions) es) tls f
 
 -- | Give all a ledger's amounts their canonical display settings.  That
 -- is, in each commodity, amounts will use the display settings of the
@@ -93,7 +113,7 @@ filterRawLedgerEntriesByAccount apats (RawLedger ms ps es f) =
 -- detected. Also, amounts are converted to cost basis if that flag is
 -- active.
 canonicaliseAmounts :: Bool -> RawLedger -> RawLedger
-canonicaliseAmounts costbasis l@(RawLedger ms ps es f) = RawLedger ms ps (map fixentry es) f
+canonicaliseAmounts costbasis l@(RawLedger ms ps es tls f) = RawLedger ms ps (map fixentry es) tls f
     where 
       fixentry (Entry d s c de co ts pr) = Entry d s c de co (map fixrawtransaction ts) pr
       fixrawtransaction (RawTransaction ac a c t) = RawTransaction ac (fixmixedamount a) c t
diff --git a/Ledger/Types.hs b/Ledger/Types.hs
index 4abb099d3..845c47f8e 100644
--- a/Ledger/Types.hs
+++ b/Ledger/Types.hs
@@ -77,6 +77,7 @@ data RawLedger = RawLedger {
       modifier_entries :: [ModifierEntry],
       periodic_entries :: [PeriodicEntry],
       entries :: [Entry],
+      open_timelog_entries :: [TimeLogEntry],
       final_comment_lines :: String
     } deriving (Eq)