match full account name when (any) account pattern contains :, as ledger seems to

BalanceCommand.hs

@@ -138,7 +138,7 @@ showBalanceReport opts args l = acctsstr ++ totalstr
       -- select accounts for which we should show balances, based on the options
       balancereportaccts :: Bool -> [String] -> Ledger -> [Account]
       balancereportaccts False [] l = topAccounts l
-      balancereportaccts False pats l = accountsMatching (regexFor pats) l
+      balancereportaccts False pats l = accountsMatching pats l
       balancereportaccts True pats l = addsubaccts l $ balancereportaccts False pats l
 
       -- add (in tree order) any missing subacccounts to a list of accounts

Ledger/Ledger.hs

@@ -68,9 +68,14 @@ accounts l = drop 1 $ flatten $ ledgerAccountTree 9999 l
 topAccounts :: Ledger -> [Account]
 topAccounts l = map root $ branches $ ledgerAccountTree 9999 l
 
--- | Accounts in ledger whose leafname matches the pattern, in tree order
-accountsMatching :: Regex -> Ledger -> [Account]
-accountsMatching pat l = filter (containsRegex pat . accountLeafName . aname) $ accounts l
+-- | Accounts in ledger whose name matches the pattern, in tree order.
+-- Like ledger (I think), if the pattern contains : we match the full
+-- name, otherwise just the leaf name.
+accountsMatching :: [String] -> Ledger -> [Account]
+accountsMatching pats l = filter (containsRegex (regexFor pats) . name) $ accounts l
+    where name = if any (elem ':') pats 
+                 then aname
+                 else accountLeafName . aname
 
 -- | List a ledger account's immediate subaccounts
 subAccounts :: Ledger -> Account -> [Account]

Tests.hs

@@ -181,6 +181,16 @@ balancecommandtests =
      \                 $-1\n\
      \" --"
      (showBalanceReport [] ["cash","saving"] l)
+ ,
+  "balance report with multi-part account name" ~: 
+  do 
+    l <- ledgerfromfile "sample.ledger"
+    assertequal
+     "                  $1  expenses:food\n\
+     \--------------------\n\
+     \                  $1\n\
+     \" --"
+     $ showBalanceReport [] ["expenses:food"] l
  ]
 
 -- | Assert a parsed thing equals some expected thing, or print a parse error.