bs,cf,is,bal,print,reg: reject invalid output formats

hledger/Hledger/Cli/Commands/Balance.hs

@@ -309,26 +309,26 @@ balance opts@CliOpts{rawopts_=rawopts,reportopts_=ropts@ReportOpts{..}} j = do
     Right _ -> do
       let budget      = boolopt "budget" rawopts
           multiperiod = interval_ /= NoInterval
-          format      = outputFormatFromOpts opts
+          fmt         = outputFormatFromOpts opts
 
       if budget then do  -- single or multi period budget report
         reportspan <- reportSpan j ropts
         let budgetreport     = dbg1 "budgetreport"     $ budgetReport ropts assrt reportspan d j
               where
                 assrt          = not $ ignore_assertions_ $ inputopts_ opts
-            render = case format of
-              "csv"  -> const $ error' "Sorry, CSV output is not yet implemented for this kind of report."  -- TODO
-              "html" -> const $ error' "Sorry, HTML output is not yet implemented for this kind of report."  -- TODO
-              _      -> budgetReportAsText ropts
+            render = case fmt of
+              "txt"  -> budgetReportAsText ropts
+              _      -> const $ error' $ unsupportedOutputFormatError fmt
         writeOutput opts $ render budgetreport
 
       else
         if multiperiod then do  -- multi period balance report
           let report = multiBalanceReport ropts (queryFromOpts d ropts) j
-              render = case format of
+              render = case fmt of
+                "txt"  -> multiBalanceReportAsText ropts
                 "csv"  -> (++ "\n") . printCSV . multiBalanceReportAsCsv ropts
-                "html" ->  (++ "\n") . TL.unpack . L.renderText . multiBalanceReportAsHtml ropts
-                _      -> multiBalanceReportAsText ropts
+                "html" -> (++ "\n") . TL.unpack . L.renderText . multiBalanceReportAsHtml ropts
+                _      -> const $ error' $ unsupportedOutputFormatError fmt
           writeOutput opts $ render report
 
         else do  -- single period simple balance report
@@ -339,10 +339,10 @@ balance opts@CliOpts{rawopts_=rawopts,reportopts_=ropts@ReportOpts{..}} j = do
                     in balanceReportFromMultiBalanceReport ropts' (queryFromOpts d ropts) j
                           -- for historical balances we must use balanceReportFromMultiBalanceReport (also forces --no-elide)
                 | otherwise = balanceReport ropts (queryFromOpts d ropts) j -- simple Ledger-style balance report
-              render = case format of
+              render = case fmt of
+                "txt"  -> balanceReportAsText
                 "csv"  -> \ropts r -> (++ "\n") $ printCSV $ balanceReportAsCsv ropts r
-                "html" -> \_ _ -> error' "Sorry, HTML output is not yet implemented for this kind of report."  -- TODO
-                _      -> balanceReportAsText
+                _      -> const $ error' $ unsupportedOutputFormatError fmt
           writeOutput opts $ render ropts report
 
 -- rendering single-column balance reports

hledger/Hledger/Cli/Commands/Print.hs

@@ -54,9 +54,9 @@ printEntries opts@CliOpts{reportopts_=ropts} j = do
   let q = queryFromOpts d ropts
       fmt = outputFormatFromOpts opts
       (render, ropts') = case fmt of
+        "txt"  -> (entriesReportAsText opts,                 ropts)
         "csv"  -> ((++"\n") . printCSV . entriesReportAsCsv, ropts{accountlistmode_=ALFlat})
-        "html" -> (const $ error' "Sorry, HTML output is not yet implemented for this kind of report.", ropts{accountlistmode_=ALFlat})  -- TODO
-        _      -> (entriesReportAsText opts,                 ropts)
+        _      -> (const $ error' $ unsupportedOutputFormatError fmt, ropts)
   writeOutput opts $ render $ entriesReport ropts' q j
 
 entriesReportAsText :: CliOpts -> EntriesReport -> String

hledger/Hledger/Cli/Commands/Register.hs

@@ -58,9 +58,9 @@ register :: CliOpts -> Journal -> IO ()
 register opts@CliOpts{reportopts_=ropts} j = do
   d <- getCurrentDay
   let fmt = outputFormatFromOpts opts
-      render | fmt=="csv"  = const ((++"\n") . printCSV . postingsReportAsCsv)
-             | fmt=="html" = const $ error' "Sorry, HTML output is not yet implemented for this kind of report."  -- TODO
-             | otherwise   = postingsReportAsText
+      render | fmt=="txt"  = postingsReportAsText
+             | fmt=="csv"  = const ((++"\n") . printCSV . postingsReportAsCsv)
+             | otherwise   = const $ error' $ unsupportedOutputFormatError fmt
   writeOutput opts $ render opts $ postingsReport ropts (queryFromOpts d ropts) j
 
 postingsReportAsCsv :: PostingsReport -> CSV

hledger/Hledger/Cli/CompoundBalanceCommand.hs

@@ -26,7 +26,7 @@ import Text.Tabular as T
 import Hledger
 import Hledger.Cli.Commands.Balance
 import Hledger.Cli.CliOptions
-import Hledger.Cli.Utils (writeOutput)
+import Hledger.Cli.Utils (unsupportedOutputFormatError, writeOutput)
 
 -- | Description of a compound balance report command,
 -- from which we generate the command's cmdargs mode and IO action.
@@ -142,7 +142,7 @@ compoundBalanceCommand CompoundBalanceCommandSpec{..} opts@CliOpts{reportopts_=r
         no_total_=if percent_ && length cbcqueries > 1 then True else no_total_
       }
       userq = queryFromOpts d ropts'
-      format = outputFormatFromOpts opts
+      fmt = outputFormatFromOpts opts
 
       -- make a CompoundBalanceReport.
       -- For efficiency, generate a price oracle here and reuse it with each subreport.
@@ -235,10 +235,11 @@ compoundBalanceCommand CompoundBalanceCommandSpec{..} opts@CliOpts{reportopts_=r
 
     -- render appropriately
     writeOutput opts $
-      case format of
+      case fmt of
+        "txt"  -> compoundBalanceReportAsText ropts' cbr
         "csv"  -> printCSV (compoundBalanceReportAsCsv ropts cbr) ++ "\n"
         "html" -> (++ "\n") $ TL.unpack $ L.renderText $ compoundBalanceReportAsHtml ropts cbr
-        _      -> compoundBalanceReportAsText ropts' cbr
+        _      -> error' $ unsupportedOutputFormatError fmt
 
 -- | Summarise one or more (inclusive) end dates, in a way that's
 -- visually different from showDateSpan, suggesting discrete end dates

hledger/Hledger/Cli/Utils.hs

@@ -10,6 +10,7 @@ Hledger.Utils.
 
 module Hledger.Cli.Utils
     (
+     unsupportedOutputFormatError,
      withJournalDo,
      writeOutput,
      journalTransform,
@@ -57,6 +58,10 @@ import Hledger.Read
 import Hledger.Reports
 import Hledger.Utils
 
+-- | Standard error message for a bad output format specified with -O/-o.
+unsupportedOutputFormatError :: String -> String
+unsupportedOutputFormatError fmt = "Sorry, output format \""++fmt++"\" is unrecognised or not yet implemented for this report."
+
 -- | Parse the user's specified journal file(s) as a Journal, maybe apply some
 -- transformations according to options, and run a hledger command with it.
 -- Or, throw an error.