import CmdLine
import Text.Printf
-import Text.Html hiding ((!))
+import Text.Html hiding (cols, rows, (!))
import qualified Text.Html as Html ((!))
import qualified Data.Map as Map
import Data.Map (Map)
-import System.Console.GetOpt
import System.Exit ( exitWith, ExitCode(..) )
-import Numeric ( showFloat, showFFloat, showSigned )
+import Control.Monad
import Data.Maybe ( isNothing )
import Data.Char
import System.IO
import Data.List
+(<!) :: Text.Html.ADDATTRS a => a -> [HtmlAttr] -> a
(<!) = (Html.!)
-----------------------------------------------------------------------------
die :: String -> IO a
die s = hPutStr stderr s >> exitWith (ExitFailure 1)
-usageHeader = "usage: nofib-analyse [OPTION...] <logfile1> <logfile2> ..."
-
+main :: IO ()
main = do
- if not (null cmdline_errors) || OptHelp `elem` flags
- then die (concat cmdline_errors ++ usageInfo usageHeader argInfo)
- else do
+ when (not (null cmdline_errors) || OptHelp `elem` flags) $
+ die (concat cmdline_errors ++ usage)
- let { html = OptHTMLOutput `elem` flags;
+ let { html = OptHTMLOutput `elem` flags;
latex = OptLaTeXOutput `elem` flags;
ascii = OptASCIIOutput `elem` flags
}
- if ascii && html
- then die "Can't produce both ASCII and HTML"
- else do
-
- if devs && nodevs
- then die "Can't both display and hide deviations"
- else do
+ when (ascii && html) $ die "Can't produce both ASCII and HTML"
+ when (devs && nodevs) $ die "Can't both display and hide deviations"
results <- parse_logs other_args
let column_headings = map (reverse . takeWhile (/= '/') . reverse) other_args
-- sanity check
- sequence_ [ checkTimes prog res | table <- results,
- (prog,res) <- Map.toList table ]
+ sequence_ [ checkTimes prog res | result_table <- results,
+ (prog,res) <- Map.toList result_table ]
case () of
- _ | html ->
+ _ | html ->
putStr (renderHtml (htmlPage results column_headings))
- _ | latex ->
+ _ | latex ->
putStr (latexOutput results column_headings summary_spec summary_rows)
- _ | otherwise ->
+ _ | otherwise ->
putStr (asciiPage results column_headings summary_spec summary_rows)
data PerProgTableSpec =
forall a . Result a =>
- SpecP
+ SpecP
String -- Name of the table
String -- Short name (for column heading)
String -- HTML tag for the table
data PerModuleTableSpec =
forall a . Result a =>
- SpecM
+ SpecM
String -- Name of the table
String -- HTML tag for the table
(Results -> Map String a) -- get the module map
(a -> Bool) -- Result within reasonable limits?
-- The various per-program aspects of execution that we can generate results for.
+size_spec, alloc_spec, runtime_spec, muttime_spec, gctime_spec,
+ gcwork_spec, instrs_spec, mreads_spec, mwrite_spec, cmiss_spec
+ :: PerProgTableSpec
size_spec = SpecP "Binary Sizes" "Size" "binary-sizes" binary_size compile_status always_ok
alloc_spec = SpecP "Allocations" "Allocs" "allocations" allocs run_status always_ok
runtime_spec = SpecP "Run Time" "Runtime" "run-times" (mean run_time) run_status time_ok
mwrite_spec = SpecP "Memory Writes" "Writes" "mem-writes" mem_writes run_status always_ok
cmiss_spec = SpecP "Cache Misses" "Misses" "cache-misses" cache_misses run_status always_ok
+all_specs :: [PerProgTableSpec]
all_specs = [
size_spec,
alloc_spec,
namedColumns :: [String] -> IO [PerProgTableSpec]
namedColumns ss = mapM findSpec ss
- where findSpec s =
+ where findSpec s =
case [ spec | spec@(SpecP _ short_name _ _ _ _) <- all_specs,
short_name == s ] of
[] -> die ("unknown column: " ++ s)
check "GC time" (gc_time results)
where
check kind ts
- | any strange ts =
+ | any strange ts =
hPutStrLn stderr ("warning: dubious " ++ kind
++ " results for " ++ prog
++ ": " ++ show ts)
-- These are the per-prog tables we want to generate
+per_prog_result_tab :: [PerProgTableSpec]
per_prog_result_tab =
[ size_spec, alloc_spec, runtime_spec, muttime_spec, gctime_spec,
gcwork_spec, instrs_spec, mreads_spec, mwrite_spec, cmiss_spec ]
-- A single summary table, giving comparison figures for a number of
-- aspects, each in its own column. Only works when comparing two runs.
+normal_summary_specs :: [PerProgTableSpec]
normal_summary_specs =
[ size_spec, alloc_spec, runtime_spec ]
-
+
+cachegrind_summary_specs :: [PerProgTableSpec]
cachegrind_summary_specs =
[ size_spec, alloc_spec, instrs_spec, mreads_spec, mwrite_spec ]
-
+
-- Pick an appropriate summary table: if we're cachegrinding, then
-- we're probably not interested in the runtime, but we are interested
-- in instructions, mem reads and mem writes (and vice-versa).
pickSummary :: [ResultTable] -> [PerProgTableSpec]
-pickSummary rs
+pickSummary rs
| isNothing (instrs (head (Map.elems (head rs)))) = normal_summary_specs
| otherwise = cachegrind_summary_specs
+per_module_result_tab :: [PerModuleTableSpec]
per_module_result_tab =
[ SpecM "Module Sizes" "mod-sizes" module_size always_ok
, SpecM "Compile Times" "compile-time" compile_time time_ok
-----------------------------------------------------------------------------
-- HTML page generation
---htmlPage :: Results -> [String] -> Html
+htmlPage :: [ResultTable] -> [String] -> Html
htmlPage results args
= header << thetitle << reportTitle
+++ hr
+++ hr
+++ body (gen_tables results args)
+gen_menu :: Html
gen_menu = unordList (map (prog_menu_item) per_prog_result_tab
- ++ map (module_menu_item) per_module_result_tab)
+ ++ map (module_menu_item) per_module_result_tab)
-prog_menu_item (SpecP name _ anc _ _ _) = anchor <! [href ('#':anc)] << name
-module_menu_item (SpecM name anc _ _) = anchor <! [href ('#':anc)] << name
+prog_menu_item :: PerProgTableSpec -> Html
+prog_menu_item (SpecP long_name _ anc _ _ _)
+ = anchor <! [href ('#':anc)] << long_name
+module_menu_item :: PerModuleTableSpec -> Html
+module_menu_item (SpecM long_name anc _ _)
+ = anchor <! [href ('#':anc)] << long_name
+gen_tables :: [ResultTable] -> [String] -> Html
gen_tables results args =
- foldr1 (+++) (map (htmlGenProgTable results args) per_prog_result_tab)
- +++ foldr1 (+++) (map (htmlGenModTable results args) per_module_result_tab)
+ foldr1 (+++) (map (htmlGenProgTable results args) per_prog_result_tab)
+ +++ foldr1 (+++) (map (htmlGenModTable results args) per_module_result_tab)
-htmlGenProgTable results args (SpecP title _ anc get_result get_status result_ok)
- = sectHeading title anc
+htmlGenProgTable :: [ResultTable] -> [String] -> PerProgTableSpec -> Html
+htmlGenProgTable results args (SpecP long_name _ anc get_result get_status result_ok)
+ = sectHeading long_name anc
+++ font <! [size "1"]
<< mkTable (htmlShowResults results args get_result get_status result_ok)
+++ hr
-htmlGenModTable results args (SpecM title anc get_result result_ok)
- = sectHeading title anc
- +++ font <![size "1"]
+htmlGenModTable :: [ResultTable] -> [String] -> PerModuleTableSpec -> Html
+htmlGenModTable results args (SpecM long_name anc get_result result_ok)
+ = sectHeading long_name anc
+ +++ font <![size "1"]
<< mkTable (htmlShowMultiResults results args get_result result_ok)
+++ hr
sectHeading :: String -> String -> Html
sectHeading s nm = h2 << anchor <! [name nm] << s
-htmlShowResults
+htmlShowResults
:: Result a
=> [ResultTable]
-> [String]
-> (a -> Bool)
-> HtmlTable
+htmlShowResults [] _ _ _ _
+ = error "htmlShowResults: Can't happen?"
htmlShowResults (r:rs) ss f stat result_ok
= tabHeader ss
</> aboves (zipWith tableRow [1..] results_per_prog)
where
-- results_per_prog :: [ (String,[BoxValue a]) ]
results_per_prog = map (calc_result rs f stat result_ok) (Map.toList r)
-
+
results_per_run = transpose (map snd results_per_prog)
(lows,gms,highs) = unzip3 (map calc_gmsd results_per_run)
-> (a -> Bool)
-> HtmlTable
+htmlShowMultiResults [] _ _ _
+ = error "htmlShowMultiResults: Can't happen?"
htmlShowMultiResults (r:rs) ss f result_ok =
- multiTabHeader ss
+ multiTabHeader ss
</> aboves (map show_results_for_prog results_per_prog_mod_run)
</> aboves ((if nodevs then []
else [td << bold << "-1 s.d."
<-> tableRow (-1) ("", highs)])
++ [td << bold << "Average"
<-> tableRow (-1) ("", gms)])
-
where
base_results = Map.toList r :: [(String,Results)]
results_per_prog_mod_run = map get_results_for_prog base_results
-- get_results_for_prog :: (String,Results) -> (String,[BoxValue a])
- get_results_for_prog (prog,r) = (prog, map get_results_for_mod (Map.toList (f r)))
+ get_results_for_prog (prog, results)
+ = (prog, map get_results_for_mod (Map.toList (f results)))
where fms = map get_run_results rs
Nothing -> Map.empty
Just res -> f res
- get_results_for_mod (id,attr) = calc_result fms Just (const Success)
- result_ok (id,attr)
+ get_results_for_mod id_attr
+ = calc_result fms Just (const Success) result_ok id_attr
show_results_for_prog (prog,mrs) =
td <! [valign "top"] << bold << prog
tableRow :: Int -> (String, [BoxValue]) -> HtmlTable
tableRow row_no (prog, results)
= td <! [bgcolor left_column_color] << prog
- <-> besides (map (\s -> td <! [align "right", clr] << showBox s)
+ <-> besides (map (\s -> td <! [align "right", clr] << showBox s)
results)
where clr | row_no < 0 = bgcolor average_row_color
| even row_no = bgcolor even_row_color
| otherwise = bgcolor odd_row_color
+left_column_color, odd_row_color, even_row_color, average_row_color :: String
left_column_color = "#d0d0ff" -- light blue
odd_row_color = "#d0d0ff" -- light blue
even_row_color = "#f0f0ff" -- v. light blue
unPcnt (_ : rest) = unPcnt rest
-}
+logHeaders :: [String] -> HtmlTable
logHeaders ss
= besides (map (\s -> (td <! [align "right", width "100"] << bold << s)) ss)
+mkTable :: HtmlTable -> Html
mkTable t = table <! [cellspacing 0, cellpadding 0, border 0] << t
+tabHeader :: [String] -> HtmlTable
tabHeader ss
- = (td <! [align "left", width "100"] << bold << "Program")
+ = (td <! [align "left", width "100"] << bold << "Program")
<-> logHeaders ss
+multiTabHeader :: [String] -> HtmlTable
multiTabHeader ss
= (td <! [align "left", width "100"] << bold << "Program")
<-> (td <! [align "left", width "100"] << bold << "Module")
<-> logHeaders ss
-- Calculate a color ranging from bright blue for -100% to bright red for +100%.
-
calcColor :: Int -> String
-calcColor p | p >= 0 = "#" ++ (showHex red 2 "0000")
- | otherwise = "#0000" ++ (showHex blue 2 "")
- where red = p * 255 `div` 100
- blue = (-p) * 255 `div` 100
-
-showHex 0 f s = if f > 0 then take f (repeat '0') ++ s else s
-showHex i f s = showHex (i `div` 16) (f-1) (hexDig (i `mod` 16) : s)
-
-hexDig i | i > 10 = chr (i-10 + ord 'a')
- | otherwise = chr (i + ord '0')
+calcColor percentage | percentage >= 0 = printf "#%02x0000" val
+ | otherwise = printf "#0000%02x" val
+ where val = abs percentage * 255 `div` 100
-----------------------------------------------------------------------------
-- LaTeX table generation (just the summary for now)
-latexOutput results args summary_spec summary_rows =
+latexOutput :: [ResultTable] -> [String] -> [PerProgTableSpec]
+ -> Maybe [String] -> String
+latexOutput results _ summary_spec summary_rows =
(if (length results == 2)
then ascii_summary_table True results summary_spec summary_rows
. str "\n\n"
-----------------------------------------------------------------------------
-- ASCII page generation
+asciiPage :: [ResultTable] -> [String] -> [PerProgTableSpec] -> Maybe [String]
+ -> String
asciiPage results args summary_spec summary_rows =
( str reportTitle
. str "\n\n"
. interleave "\n\n" (map (asciiGenModTable results args) per_module_result_tab)
) "\n"
-asciiGenProgTable results args (SpecP title _ anc get_result get_status result_ok)
- = str title
+asciiGenProgTable :: [ResultTable] -> [String] -> PerProgTableSpec -> ShowS
+asciiGenProgTable results args (SpecP long_name _ _ get_result get_status result_ok)
+ = str long_name
. str "\n"
. ascii_show_results results args get_result get_status result_ok
-asciiGenModTable results args (SpecM title anc get_result result_ok)
- = str title
+asciiGenModTable :: [ResultTable] -> [String] -> PerModuleTableSpec -> ShowS
+asciiGenModTable results args (SpecM long_name _ get_result result_ok)
+ = str long_name
. str "\n"
. ascii_show_multi_results results args get_result result_ok
-ascii_header width ss
+ascii_header :: Int -> [String] -> ShowS
+ascii_header w ss
= str "\n-------------------------------------------------------------------------------\n"
. str (rjustify 15 "Program")
. str (space 5)
- . foldr (.) id (map (str . rjustify width) ss)
+ . foldr (.) id (map (str . rjustify w) ss)
. str "\n-------------------------------------------------------------------------------\n"
ascii_show_results
-> (a -> Bool)
-> ShowS
+ascii_show_results [] _ _ _ _
+ = error "ascii_show_results: Can't happen?"
ascii_show_results (r:rs) ss f stat result_ok
= ascii_header fIELD_WIDTH ss
. interleave "\n" (map show_per_prog_results results_per_prog)
where
-- results_per_prog :: [ (String,[BoxValue a]) ]
results_per_prog = map (calc_result rs f stat result_ok) (Map.toList r)
-
+
results_per_run = transpose (map snd results_per_prog)
(lows,gms,highs) = unzip3 (map calc_gmsd results_per_run)
-- A summary table, useful only when we are comparing two runs. This table
-- shows a number of different result categories, one per column.
-ascii_summary_table
+ascii_summary_table
:: Bool -- generate a LaTeX table?
-> [ResultTable]
-> [PerProgTableSpec]
-> Maybe [String]
-> ShowS
+ascii_summary_table _ [] _ _
+ = error "ascii_summary_table: Can't happen?"
+ascii_summary_table _ [_] _ _
+ = error "ascii_summary_table: Can't happen?"
ascii_summary_table latex (r1:r2:_) specs mb_restrict
| latex = makeLatexTable (rows ++ TableLine : av_rows)
- | otherwise =
- makeTable (table_layout (length specs) width)
- (TableLine : TableRow header : TableLine : rows ++ TableLine : av_rows)
+ | otherwise =
+ makeTable (table_layout (length specs) w)
+ (TableLine : TableRow header_row :
+ TableLine : rows ++
+ TableLine : av_rows)
where
- header = BoxString "Program" : map BoxString headings
+ header_row = BoxString "Program" : map BoxString headings
(headings, columns, av_cols) = unzip3 (map calc_col specs)
av_heads = [BoxString "Min", BoxString "Max", BoxString "Geometric Mean"]
| otherwise = rows1
av_rows = map TableRow (zipWith (:) av_heads (transpose av_cols))
- width = 10
+ w = 10
calc_col (SpecP _ heading _ getr gets ok)
- = (heading, column, [min,max,mean]) -- throw away the baseline result
+ -- throw away the baseline result
+ = (heading, column, [column_min, column_max, column_mean])
where (_, boxes) = unzip (map calc_one_result baseline)
calc_one_result = calc_result [r2] getr gets ok
column = map (\(_:b:_) -> b) boxes
- (_,mean,_) = calc_gmsd column
- (min,max) = calc_minmax column
+ (_, column_mean, _) = calc_gmsd column
+ (column_min, column_max) = calc_minmax column
restrictRows :: Maybe [String] -> [TableRow] -> [TableRow]
restrictRows Nothing rows = rows
transchar '_' s = '\\':'_':s
transchar c s = c:s
-table_layout n width =
- (str . rjustify 15) :
- (\s -> str (space 5) . str (rjustify width s)) :
- replicate (n-1) (str . rjustify width)
+table_layout :: Int -> Int -> Layout
+table_layout n w =
+ (str . rjustify 15) :
+ (\s -> str (space 5) . str (rjustify w s)) :
+ replicate (n-1) (str . rjustify w)
ascii_show_multi_results
:: Result a
-> (a -> Bool)
-> ShowS
+ascii_show_multi_results [] _ _ _
+ = error "ascii_show_multi_results: Can't happen?"
ascii_show_multi_results (r:rs) ss f result_ok
- = ascii_header fIELD_WIDTH ss
+ = ascii_header fIELD_WIDTH ss
. interleave "\n" (map show_results_for_prog results_per_prog_mod_run)
. str "\n"
. if nodevs then id
results_per_prog_mod_run = map get_results_for_prog base_results
-- get_results_for_prog :: (String,Results) -> (String,[BoxValue a])
- get_results_for_prog (prog,r) = (prog, map get_results_for_mod (Map.toList (f r)))
+ get_results_for_prog (prog, results)
+ = (prog, map get_results_for_mod (Map.toList (f results)))
where fms = map get_run_results rs
Nothing -> Map.empty
Just res -> f res
- get_results_for_mod (id,attr) = calc_result fms Just (const Success)
- result_ok (id,attr)
+ get_results_for_mod id_attr
+ = calc_result fms Just (const Success) result_ok id_attr
show_results_for_prog (prog,mrs) =
str ("\n"++prog++"\n")
show_per_prog_results :: (String, [BoxValue]) -> ShowS
show_per_prog_results = show_per_prog_results_width fIELD_WIDTH
-show_per_prog_results_width width (prog,results)
+show_per_prog_results_width :: Int -> (String, [BoxValue]) -> ShowS
+show_per_prog_results_width w (prog,results)
= str (rjustify 15 prog)
. str (space 5)
- . foldr (.) id (map (str . rjustify width . showBox) results)
+ . foldr (.) id (map (str . rjustify w . showBox) results)
-- ---------------------------------------------------------------------------
-- Generic stuff for results generation
-- calc_result is a nice exercise in higher-order programming...
-calc_result
+calc_result
:: Result a
=> [Map String b] -- accumulated results
-> (b -> Maybe a) -- get a result from the b
-> (String,[BoxValue])
calc_result rts get_maybe_a get_stat result_ok (prog,base_r) =
- (prog, (just_result baseline base_stat :
+ (prog, (just_result m_baseline base_stat :
let
rts' = map (\rt -> get_stuff (Map.lookup prog rt)) rts
get_stuff (Just r) = (get_maybe_a r, get_stat r)
in
(
- case baseline of
- Just base | result_ok base
- -> map (\(r,s) -> percentage r s base) rts'
- _other
- -> map (\(r,s) -> just_result r s) rts'
+ case m_baseline of
+ Just baseline
+ | result_ok baseline
+ -> map (\(r,s) -> percentage r s baseline) rts'
+ _ -> map (\(r,s) -> just_result r s) rts'
)))
where
- baseline = get_maybe_a base_r
+ m_baseline = get_maybe_a base_r
base_stat = get_stat base_r
just_result Nothing s = RunFailed s
- just_result (Just a) s = toBox a
+ just_result (Just a) _ = toBox a
- percentage Nothing s base = RunFailed s
- percentage (Just a) s base = Percentage
- (convert_to_percentage base a)
+ percentage Nothing s _ = RunFailed s
+ percentage (Just a) _ baseline
+ = Percentage (convert_to_percentage baseline a)
-----------------------------------------------------------------------------
-- Calculating geometric means and standard deviations
{-
This is done using the log method, to avoid needing really large
-intermediate results. The formula for a geometric mean is
+intermediate results. The formula for a geometric mean is
(a1 * .... * an) ^ 1/n
-}
calc_gmsd :: [BoxValue] -> (BoxValue, BoxValue, BoxValue)
-calc_gmsd xs
+calc_gmsd xs
| null percentages = (RunFailed NotDone, RunFailed NotDone, RunFailed NotDone)
- | otherwise = let sqr x = x * x
- len = fromIntegral (length percentages)
- logs = map log percentages
- lbar = sum logs / len
- devs = map (sqr . (lbar-)) logs
- dbar = sum devs / len
- gm = exp lbar
- sdf = exp (sqrt dbar)
+ | otherwise = let sqr x = x * x
+ len = fromIntegral (length percentages)
+ logs = map log percentages
+ lbar = sum logs / len
+ st_devs = map (sqr . (lbar-)) logs
+ dbar = sum st_devs / len
+ gm = exp lbar
+ sdf = exp (sqrt dbar)
in
(Percentage (gm/sdf),
Percentage gm,
calc_minmax :: [BoxValue] -> (BoxValue, BoxValue)
calc_minmax xs
| null percentages = (RunFailed NotDone, RunFailed NotDone)
- | otherwise = (Percentage (minimum percentages),
+ | otherwise = (Percentage (minimum percentages),
Percentage (maximum percentages))
where
percentages = [ if f < 5 then 5 else f | Percentage f <- xs ]
-- We assume an Int is a size, and print it in kilobytes.
instance Result Int where
- convert_to_percentage 0 size = 100
- convert_to_percentage base size = (fromIntegral size / fromIntegral base) * 100
+ convert_to_percentage 0 _ = 100
+ convert_to_percentage baseline val
+ = (fromIntegral val / fromIntegral baseline) * 100
- toBox = BoxInt
+ toBox = BoxInt
instance Result Integer where
- convert_to_percentage 0 size = 100
- convert_to_percentage base size = (fromInteger size / fromInteger base) * 100
- toBox = BoxInteger
-
+ convert_to_percentage 0 _ = 100
+ convert_to_percentage baseline val
+ = (fromInteger val / fromInteger baseline) * 100
+ toBox = BoxInteger
instance Result Float where
- convert_to_percentage 0.0 size = 100.0
- convert_to_percentage base size = size / base * 100
+ convert_to_percentage 0.0 _ = 100.0
+ convert_to_percentage baseline val = val / baseline * 100
- toBox = BoxFloat
+ toBox = BoxFloat
-- -----------------------------------------------------------------------------
-- BoxValues
showBox :: BoxValue -> String
showBox (RunFailed stat) = show_stat stat
-showBox (Percentage f) = show_pcntage f
+showBox (Percentage f) = case printf "%.1f%%" (f-100) of
+ xs@('-':_) -> xs
+ xs -> '+':xs
showBox (BoxFloat f) = printf "%.2f" f
showBox (BoxInt n) = show (n `div` 1024) ++ "k"
showBox (BoxInteger n) = show (n `div` 1024) ++ "k"
showBox (BoxString s) = s
-instance Show BoxValue where { show = showBox }
-
-show_pcntage n = show_float_signed (n-100) ++ "%"
-
-show_float_signed n
- | n >= 0 = printf "+%.1f" n
- | otherwise = printf "%.1f" n
+instance Show BoxValue where
+ show = showBox
+show_stat :: Status -> String
show_stat Success = "(no result)"
show_stat WrongStdout = "(stdout)"
show_stat WrongStderr = "(stderr)"
type Layout = [String -> ShowS]
makeTable :: Layout -> [TableRow] -> ShowS
-makeTable p = interleave "\n" . map do_row
- where do_row (TableRow boxes) = applyLayout p boxes
+makeTable layout = interleave "\n" . map do_row
+ where do_row (TableRow boxes) = applyLayout layout boxes
do_row TableLine = str (take 80 (repeat '-'))
makeLatexTable :: [TableRow] -> ShowS
transchar c s = c : s
applyLayout :: Layout -> [BoxValue] -> ShowS
-applyLayout layout values =
+applyLayout layout values =
foldr (.) id [ f (show val) | (val,f) <- zip values layout ]
-- -----------------------------------------------------------------------------
-- General Utils
split :: Char -> String -> [String]
-split c s = case rest of
- [] -> [chunk]
- _:rest -> chunk : split c rest
- where (chunk, rest) = break (==c) s
+split c s = case break (==c) s of
+ (chunk, rest) ->
+ case rest of
+ [] -> [chunk]
+ _:rest' -> chunk : split c rest'
+str :: String -> ShowS
str = showString
-interleave s = foldr1 (\a b -> a . str s . b)
+interleave :: String -> [ShowS] -> ShowS
+interleave s = foldr1 (\a b -> a . str s . b)
-fIELD_WIDTH = 16 :: Int
+fIELD_WIDTH :: Int
+fIELD_WIDTH = 16
-----------------------------------------------------------------------------
projects / ghc-hetmet.git / blobdiff