a cached ledger now includes the full ledger text, also.

This reads the file twice, since I couldn't figure out how to do it just
once with the new error monad.. fixes welcome.

Ledger/Ledger.hs

@@ -2,7 +2,8 @@
 
 A 'Ledger' stores, for efficiency, a 'RawLedger' plus its tree of account
 names, and a map from account names to 'Account's. It may also have had
-uninteresting 'Entry's and 'Transaction's filtered out.
+uninteresting 'Entry's and 'Transaction's filtered out. It also stores
+the complete ledger file text for the ui command.
 
 -}
 
@@ -30,7 +31,7 @@ instance Show Ledger where
 
 -- | Convert a raw ledger to a more efficient cached type, described above.  
 cacheLedger :: [String] -> RawLedger -> Ledger
-cacheLedger apats l = Ledger l ant acctmap
+cacheLedger apats l = Ledger{rawledgertext="",rawledger=l,accountnametree=ant,accountmap=acctmap}
     where
       ts = filtertxns apats $ rawLedgerTransactions l
       ant = rawLedgerAccountNameTree l

Ledger/Types.hs

@@ -106,6 +106,7 @@ data Account = Account {
     }
 
 data Ledger = Ledger {
+      rawledgertext :: String,
       rawledger :: RawLedger,
       accountnametree :: Tree AccountName,
       accountmap :: Map.Map AccountName Account

Utils.hs

@@ -16,10 +16,10 @@ import Ledger
 
 -- | Convert a RawLedger to a canonicalised, cached and filtered Ledger
 -- based on the command-line options/arguments and today's date.
-prepareLedger ::  [Opt] -> [String] -> Day -> RawLedger -> Ledger
-prepareLedger opts args refdate rl =
-    cacheLedger apats $ filterRawLedger span dpats c r $ canonicaliseAmounts cb rl
+prepareLedger ::  [Opt] -> [String] -> Day -> String -> RawLedger -> Ledger
+prepareLedger opts args refdate rawtext rl = l{rawledgertext=rawtext}
     where
+      l = cacheLedger apats $ filterRawLedger span dpats c r $ canonicaliseAmounts cb rl
       (apats,dpats) = parseAccountDescriptionArgs [] args
       span = dateSpanFromOpts refdate opts
       c = Cleared `elem` opts
@@ -33,14 +33,15 @@ rawledgerfromstring = liftM (either error id) . runErrorT . parseLedger "(string
 -- | Get a Ledger from the given string and options, or raise an error.
 ledgerfromstringwithopts :: [Opt] -> [String] -> Day -> String -> IO Ledger
 ledgerfromstringwithopts opts args refdate s =
-    liftM (prepareLedger opts args refdate) $ rawledgerfromstring s
+    liftM (prepareLedger opts args refdate s) $ rawledgerfromstring s
 
 -- | Get a Ledger from the given file path and options, or raise an error.
 ledgerfromfilewithopts :: [Opt] -> [String] -> FilePath -> IO Ledger
 ledgerfromfilewithopts opts args f = do
-    rl <- readFile f >>= rawledgerfromstring
-    refdate <- today
-    return $ prepareLedger opts args refdate rl
+  refdate <- today
+  s <- readFile f 
+  rl <- rawledgerfromstring s
+  return $ prepareLedger opts args refdate s rl
            
 -- | Get a Ledger from your default ledger file, or raise an error.
 -- Assumes no options.

hledger.hs

@@ -76,5 +76,8 @@ main = do
 parseLedgerAndDo :: [Opt] -> [String] -> ([Opt] -> [String] -> Ledger -> IO ()) -> IO ()
 parseLedgerAndDo opts args cmd = do
   refdate <- today
-  let runcmd = cmd opts args . prepareLedger opts args refdate
-  ledgerFilePathFromOpts opts >>= runErrorT . parseLedgerFile >>= either (hPutStrLn stderr) runcmd
+  -- ack, we're reading the file twice in order to save the text
+  f <- ledgerFilePathFromOpts opts
+  rawtext <- readFile f
+  let runcmd = cmd opts args . prepareLedger opts args refdate rawtext
+  return f >>= runErrorT . parseLedgerFile >>= either (hPutStrLn stderr) runcmd