hxtools.cabal

@@ -33,10 +33,7 @@ executable hxbrief
                       async >=2.2.3 && <2.3,
                       transformers >=0.5.6.2 &&<0.6,
                       clock >=0.8 &&<0.9,
-                      pretty >=1.1.3.6 && <1.2,
-                      text >=1.2.4,
-                      regex-base >=0.94 && <0.95,
-                      regex-pcre-builtin >=0.95 && < 0.96
+                      pretty >=1.1.3.6 && <1.2
   hs-source-dirs:     src-hxbrief
   default-language:   Haskell2010
   ghc-options:        -rtsopts -threaded -Wall

seaaye.nix

@@ -4,24 +4,23 @@
   {
     hackage-8-10 = {
       resolver = "hackage";
-      index-state = "2022-07-01T00:00:00Z";
+      index-state = "2021-07-01T00:00:00Z";
       ghc-ver = "ghc8107";
     };
-    hackage-9-00 = {
+    hackage-9-01 = {
       resolver = "hackage";
-      index-state = "2022-07-01T00:00:00Z";
-      ghc-ver = "ghc902";
+      index-state = "2021-07-01T00:00:00Z";
+      ghc-ver = "ghc901";
       enabled = false;
     };
     hackage-9-02 = {
       resolver = "hackage";
-      index-state = "2022-07-01T00:00:00Z";
-      ghc-ver = "ghc925";
+      index-state = "2021-11-01T00:00:00Z";
+      ghc-ver = "ghc921";
       enabled = false;
     };
   };
   module-flags = [
-    # { enableLibraryProfiling = true; }
     # N.B.: There are haskell-nix module options. See the haskell-nix docs
     #       for details. Also, be careful about typos: In many cases you
     #       will not get errors but the typo'd flag will just not have any

src-hxbrief/Util.hs

@@ -3,9 +3,6 @@
 module Util where
 
 
-import qualified Data.Char                     as Char
-import           Data.Text                      ( Text )
-import qualified Data.Text                     as Text
 import qualified System.Console.ANSI           as Ansi
 import           System.Exit                    ( ExitCode
                                                   ( ExitFailure
@@ -14,60 +11,27 @@ import           System.Exit                    ( ExitCode
                                                 )
 
 
-t :: String -> Text
-t = Text.pack
 
-fGrey :: Text
-fGrey =
-  t $ Ansi.setSGRCode [Ansi.SetColor Ansi.Foreground Ansi.Dull Ansi.White]
-fWhite :: Text
-fWhite =
-  t $ Ansi.setSGRCode [Ansi.SetColor Ansi.Foreground Ansi.Vivid Ansi.White]
-fWhiteDis :: Text
-fWhiteDis = t ""
-fRedDis :: Text
-fRedDis = t "" -- TODO disabled until the bug is fixed.
+fGrey :: String
+fGrey = Ansi.setSGRCode [Ansi.SetColor Ansi.Foreground Ansi.Dull Ansi.White]
+fWhite :: String
+fWhite = Ansi.setSGRCode [Ansi.SetColor Ansi.Foreground Ansi.Vivid Ansi.White]
+fWhiteDis :: String
+fWhiteDis = ""
+fRedDis :: String
+fRedDis = "" -- TODO disabled until the bug is fixed.
  -- setFGColorDull Ansi.Red
 
-fReset :: Text
-fReset = t $ Ansi.setSGRCode [Ansi.Reset]
+fReset :: String
+fReset = Ansi.setSGRCode [Ansi.Reset]
 
-setFGColorVivid :: Ansi.Color -> Text
+setFGColorVivid :: Ansi.Color -> String
 setFGColorVivid c =
-  t $ Ansi.setSGRCode [Ansi.SetColor Ansi.Foreground Ansi.Vivid c]
-setFGColorDull :: Ansi.Color -> Text
-setFGColorDull c =
-  t $ Ansi.setSGRCode [Ansi.SetColor Ansi.Foreground Ansi.Dull c]
+  Ansi.setSGRCode [Ansi.SetColor Ansi.Foreground Ansi.Vivid c]
+setFGColorDull :: Ansi.Color -> String
+setFGColorDull c = Ansi.setSGRCode [Ansi.SetColor Ansi.Foreground Ansi.Dull c]
 
-showEC :: ExitCode -> Text
+showEC :: ExitCode -> String
 showEC = \case
-  ExitSuccess   -> setFGColorVivid Ansi.Green <> t "0" <> fReset
-  ExitFailure i -> setFGColorVivid Ansi.Red <> t (show i) <> fReset
-
-filterEscapeFunc :: Text -> Text
-filterEscapeFunc input = go Text.empty input
- where
-  isSpecial c = Char.isControl c
-  go clean open = case Text.break isSpecial open of
-    (a, b) -> case Text.uncons b of
-      Nothing             -> clean <> a
-      Just ('\x07', rest) -> go (clean <> a) rest -- bell
-      Just ('\x08', rest) -> if Text.null a -- backspace
-        then if Text.null clean
-          then go clean rest
-          else go (Text.init clean) rest
-        else go (clean <> Text.init a) rest
-      Just ('\x09', rest) -> -- tab
-        go (clean <> a <> Text.pack "  ") rest
-      Just ('\x1b', rest) ->  -- esc
-                             clean <> a <> case Text.uncons rest of
-        Nothing             -> Text.empty
-        Just ('\x5b', more) -> finishEscape more
-        Just ('\x9b', more) -> finishEscape more
-        Just (_     , more) -> filterEscapeFunc more
-      Just (_, rest) -> go (clean <> a) rest
-  finishEscape remain = case Text.uncons remain of
-    Nothing        -> remain
-    Just (c, rest) -> if c >= '\x40' && c <= '\x7e'
-      then filterEscapeFunc rest
-      else finishEscape rest
+  ExitSuccess   -> setFGColorVivid Ansi.Green ++ "0" ++ fReset
+  ExitFailure i -> setFGColorVivid Ansi.Red ++ show i ++ fReset