move parseLedgerAndDo back to hledger main

Ledger/Ledger.hs

@@ -136,8 +136,8 @@ printregister l = putStr $ showTransactionsWithBalances
                   nullamt{precision=lprecision l}
 
 {-| 
-This and the functions below help generate ledger-compatible balance
+This and the functions below generate ledger-compatible balance report
-reports. Here's how it should work:
+output. Here's how it should work:
 
 a sample account tree:
 

Options.hs

@@ -1,4 +1,4 @@
-module Options (parseOptions, parsePatternArgs, wildcard, Flag(..), usage, ledgerFilePath, parseLedgerAndDo)
+module Options (parseOptions, parsePatternArgs, wildcard, Flag(..), usage, ledgerFilePath)
 where
 import System.Console.GetOpt
 import System.Directory
@@ -92,12 +92,3 @@ regexFor ss = mkRegex $ "(" ++ (unwords $ intersperse "|" ss) ++ ")"
 wildcard :: Regex
 wildcard = mkRegex ".*"
 
--- | parse the user's specified ledger file and do some action with it
--- (or report a parse error). This function makes the whole thing go.
-parseLedgerAndDo :: [Flag] -> (Regex,Regex) -> (Ledger -> IO ()) -> IO ()
-parseLedgerAndDo opts pats cmd = do
-    path <- ledgerFilePath opts
-    parsed <- parseLedgerFile path
-    case parsed of Left err -> parseError err
-                   Right l -> cmd $ cacheLedger l pats
-

hledger.hs

@@ -7,11 +7,11 @@ Released under GPL version 3 or later.
 
 This is a minimal haskell clone of John Wiegley's ledger
 <http://newartisans.com/software/ledger.html>.  hledger generates
-simple ledger-compatible register & balance reports from a standard
+simple ledger-compatible register & balance reports from a plain text
 ledger file, and demonstrates a (naive) purely functional
 implementation of ledger.
 
-This module includes some helpers for querying your ledger in ghci. Examples:
+This module includes some helpers for working with your ledger in ghci. Examples:
 
 > $ rm -f hledger.o
 > $ ghci hledger.hs
@@ -38,7 +38,7 @@ import qualified Data.Map as Map (lookup)
 import Options
 import Tests (hunit, quickcheck)
 import Ledger
-import Ledger.Parse (parseLedgerFile)
+import Ledger.Parse (parseLedgerFile, parseError)
 import Ledger.Utils hiding (test)
 
 
@@ -70,11 +70,10 @@ register :: Command
 register opts pats = parseLedgerAndDo opts pats printregister
 
 balance :: Command
-balance opts pats = do
+balance opts pats = parseLedgerAndDo opts pats printbalance
-  parseLedgerAndDo opts pats printbalance
     where
-      printbalance l =
+      printbalance :: Ledger -> IO ()
-          putStr $ showLedgerAccounts l depth
+      printbalance l = putStr $ showLedgerAccounts l depth
           where 
             showsubs = (ShowSubs `elem` opts)
             depth = case (pats, showsubs) of
@@ -83,6 +82,15 @@ balance opts pats = do
                       ((wildcard,_), False) -> 1
                       otherwise  -> 9999
 
+-- | parse the user's specified ledger file and do some action with it
+-- (or report a parse error). This function makes the whole thing go.
+parseLedgerAndDo :: [Flag] -> (Regex,Regex) -> (Ledger -> IO ()) -> IO ()
+parseLedgerAndDo opts pats cmd = do
+    path <- ledgerFilePath opts
+    parsed <- parseLedgerFile path
+    case parsed of Left err -> parseError err
+                   Right l -> cmd $ cacheLedger l pats
+
 -- ghci helpers
 
 -- | get a Ledger from the file your LEDGER environment variable points to