Bump version

.gitignore

@@ -1,4 +1,6 @@
 .stack-work/
+dist-newstyle
 .vscode/
 *.swp
 result
+bench.html

README.md

@@ -6,12 +6,6 @@
 $ nix build
 ```
 
-## Running
-
-```
-$ nix run
-```
-
 ## Building the Docker image
 
 ```
@@ -26,13 +20,7 @@ Includes Stack, GHC, `haskell-language-server`, `gen-hie` etc.
 $ nix develop
 ```
 
-## Running Stack and GHC
-
-```
-$ nix run .#stack
-$ nix run .#ghc
-```
-
 ## TODO
 
-- [ ] Benchmark, profile and optimize search
+- [x] Benchmark, profile and optimize search
+- [ ] Trim down the docker image

app/Main.hs

@@ -3,6 +3,7 @@
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE NumericUnderscores #-}
 {-# LANGUAGE OverloadedRecordDot #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RankNTypes #-}
@@ -15,8 +16,7 @@ module Main (main) where
 import Data.Char (chr)
 import Data.FileEmbed (embedFile)
 import Data.Foldable (for_)
-import Data.List (intercalate)
-import Data.Maybe (fromMaybe, maybeToList)
+import Data.Maybe (fromMaybe)
 import Data.Text (Text)
 import Data.Word (Word8)
 import Network.HTTP.Media ((//), (/:))
@@ -48,11 +48,10 @@ import qualified Data.Text.Encoding as Encoding
 import qualified Network.Wai.Handler.Warp as Warp
 import qualified Text.Blaze.Html5 as H
 import qualified Text.Blaze.Html5.Attributes as A
-import qualified Unicode.Char.General.Blocks as UnicodeBlocks
-import qualified Unicode.Char.General.Names as UnicodeNames
 
 import qualified UToy.Decode as Decode
 import qualified UToy.Table as Table
+import qualified UToy.Names as Names
 import qualified UToy.Parsers as Parsers
 
 main :: IO ()
@@ -100,6 +99,7 @@ examples =
   [ "/text/✅🤔"
   , "/codepoints/x2705+x1F914"
   , "/utf8/e2.9c.85.f0.9f.a4.94"
+  , "/search/asterisk"
   ]
 
 instance MimeRender PlainText RootModel where
@@ -143,8 +143,8 @@ instance MimeRender PlainText Utf8Model where
             Right c ->
               [ Text.pack [c]
               , Text.pack $ printf "U+%04X" c
-              , Text.pack $ intercalate ", " $ allNames c
-              , Text.pack $ fromMaybe "" $ blockName c
+              , Text.intercalate ", " $ Names.allNames c
+              , fromMaybe "" $ Names.blockName c
               ]
           )
         ]
@@ -162,8 +162,8 @@ instance MimeRender HTML Utf8Model where
           Right c -> do
             H.td $ H.input ! A.class_ "charbox" ! A.value (H.toValue [c])
             H.td $ H.code $ printfHtml "U+%04X" c
-            H.td $ H.code $ H.toHtml $ intercalate ", " $ allNames c
-            H.td $ H.code $ H.toHtml $ fromMaybe "" $ blockName c
+            H.td $ H.code $ H.toHtml $ Text.intercalate ", " $ Names.allNames c
+            H.td $ H.code $ H.toHtml $ fromMaybe "" $ Names.blockName c
 
 -- /codepoints/<codepoints>
 
@@ -177,14 +177,14 @@ mkCodepointsModel =
   -- Limit number of returned codepoints. Otherwise it's
   -- too easy to provoke massive response bodies with requests like
   -- /codepoints/0-99999999
-  . take 100000
+  . take 100_000
   . map go
   . concatMap (uncurry enumFromTo)
   where
     go codepoint = (codepoint, toChar codepoint)
 
     toChar codepoint
-      | codepoint > 0x10FFFF = Left "Would be too big (maximum: U+10FFFF)"
+      | codepoint > 0x10_FFFF = Left "Would be too big (maximum: U+10FFFF)"
       | isSurrogate codepoint = Left "Is a surrogate"
       | otherwise = Right $ chr $ fromIntegral codepoint
 
@@ -200,8 +200,8 @@ instance MimeRender PlainText CodepointsModel where
         Right c ->
           [ Text.pack [c]
           , Text.pack $ printf "U+%04X" c
-          , Text.pack $ intercalate ", " $ allNames c
-          , Text.pack $ fromMaybe "" $ blockName c
+          , Text.intercalate ", " $ Names.allNames c
+          , fromMaybe "" $ Names.blockName c
           ]
       )
     | (codepoint, eiC) <- model.codepoints
@@ -218,8 +218,8 @@ instance MimeRender HTML CodepointsModel where
           Right c -> do
             H.td $ H.input ! A.class_ "charbox" ! A.value (H.toValue [c])
             H.td $ H.code $ printfHtml "U+%04X" c
-            H.td $ H.code $ H.toHtml $ intercalate ", " $ allNames c
-            H.td $ H.code $ H.toHtml $ fromMaybe "" $ blockName c
+            H.td $ H.code $ H.toHtml $ Text.intercalate ", " $ Names.allNames c
+            H.td $ H.code $ H.toHtml $ fromMaybe "" $ Names.blockName c
 
 -- /text/<text>
 
@@ -239,10 +239,7 @@ newtype SearchModel = SearchModel
   }
 
 mkSearchModel :: Text -> SearchModel
-mkSearchModel search = SearchModel $ searchAllChars search
-
-searchAllChars :: Text -> [Char]
-searchAllChars search = [c | c <- [minBound..maxBound], any (\name -> Text.toLower search `Text.isInfixOf` Text.toLower (Text.pack name)) (allNames c)]
+mkSearchModel search = SearchModel $ take 100_000 $ Names.searchCaseInsensitive search
 
 instance MimeRender HTML SearchModel where
   mimeRender _ model = charTableHtml model.results
@@ -259,8 +256,8 @@ charTableHtml chars =
       H.tr $ do
         H.td $ H.input ! A.class_ "charbox" ! A.value (H.toValue [c])
         H.td $ H.code $ printfHtml "U+%04X" c
-        H.td $ H.code $ H.toHtml $ intercalate ", " $ allNames c
-        H.td $ H.code $ H.toHtml $ fromMaybe "" $ blockName c
+        H.td $ H.code $ H.toHtml $ Text.intercalate ", " $ Names.allNames c
+        H.td $ H.code $ H.toHtml $ fromMaybe "" $ Names.blockName c
 
 
 charTableText :: [Char] -> BL.ByteString
@@ -269,8 +266,8 @@ charTableText chars =
     [ map Table.cl
       [ Text.pack [c]
       , Text.pack $ printf "U+%04X" c
-      , Text.pack $ intercalate ", " $ allNames c
-      , Text.pack $ fromMaybe "" $ blockName c
+      , Text.intercalate ", " $ Names.allNames c
+      , fromMaybe "" $ Names.blockName c
       ]
     | c <- chars
     ]
@@ -284,15 +281,6 @@ showByteHex = printf "      %02X"
 showByteBin :: Word8 -> String
 showByteBin = printf "%08b"
 
--- | Retrieve name and aliases (suffixed with @*@) of a 'Char'.
-allNames :: Char -> [String]
-allNames c =
-  maybeToList (UnicodeNames.name c)
-  ++ map (++ "*") (UnicodeNames.nameAliases c)
-
-blockName :: Char -> Maybe String
-blockName c = UnicodeBlocks.blockName . UnicodeBlocks.blockDefinition <$> UnicodeBlocks.block c
-
 orThrow :: Either a b -> (a -> ServerError) -> Handler b
 orThrow (Left err) f = throwError $ f err
 orThrow (Right val) _ = pure val

bench/Main.hs

@@ -0,0 +1,69 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+module Main where
+
+import Criterion.Main (bench, bgroup, defaultMain, whnf)
+import Data.Char (ord)
+import Data.Maybe (maybeToList)
+import Data.Text (Text)
+
+import qualified Data.Text as Text
+import qualified Data.Vector as Vector
+import qualified Unicode.Char.General.Names as UnicodeNames
+
+main = defaultMain
+  [ bench "naiveSearchCI" $ whnf naiveSearchCI "latin"
+  , bench "naiveSearchCS" $ whnf naiveSearchCS "LATIN"
+  , bench "memoSearchCI" $ whnf memoSearchCI "latin"
+  , bench "memoSearchCS" $ whnf memoSearchCS "LATIN"
+  ]
+
+naiveSearchCI :: Text -> [Char]
+naiveSearchCI search =
+  filter go [minBound..maxBound]
+  where
+    go c = any matches $ allNames c
+    matches t = Text.toLower search `Text.isInfixOf` Text.toLower (Text.pack t)
+
+naiveSearchCS :: Text -> [Char]
+naiveSearchCS search =
+  filter go [minBound..maxBound]
+  where
+    go c = any matches $ allNames c
+    matches t = search `Text.isInfixOf` Text.pack t
+
+memoSearchCS :: Text -> [Char]
+memoSearchCS search =
+  filter go [minBound..maxBound]
+  where
+    go c = any matches $ allNamesText c
+    matches t = search `Text.isInfixOf` t
+
+memoSearchCI :: Text -> [Char]
+memoSearchCI search =
+  filter go [minBound..maxBound]
+  where
+    go c = any matches $ allNamesTextLower c
+    matches t = Text.toLower search `Text.isInfixOf` t
+
+-- | Retrieve name and aliases (suffixed with @*@) of a 'Char'.
+allNames :: Char -> [String]
+allNames c =
+  maybeToList (UnicodeNames.name c)
+  ++ map (++ "*") (UnicodeNames.nameAliases c)
+
+allNamesText :: Char -> [Text]
+allNamesText c = Vector.unsafeIndex textNames $ ord c
+
+textNames :: Vector.Vector [Text]
+textNames = Vector.fromList $ map go [minBound..maxBound]
+  where
+    go c = map Text.pack $ allNames c
+
+allNamesTextLower :: Char -> [Text]
+allNamesTextLower c = Vector.unsafeIndex textNamesLower $ ord c
+
+textNamesLower :: Vector.Vector [Text]
+textNamesLower = Vector.fromList $ map go [minBound..maxBound]
+  where
+    go c = map (Text.toLower . Text.pack) $ allNames c

flake.nix

@@ -31,6 +31,7 @@
               pkgs.haskellPackages.implicit-hie
               pkgs.haskell-language-server
             ];
+          cabal2nixOptions = "--benchmark";
         }).env;
   };
 }

hie.yaml

@@ -1,10 +1,10 @@
 cradle:
-  stack:
-    - path: "./src"
-      component: "utoy:lib"
+  cabal:
+    - path: "src"
+      component: "lib:utoy"
 
-    - path: "./app/Main.hs"
+    - path: "app/Main.hs"
       component: "utoy:exe:utoy"
 
-    - path: "./test"
-      component: "utoy:test:utoy-test"
+    - path: "bench/Main.hs"
+      component: "utoy:bench:utoy-bench"

src/UToy/Names.hs

@@ -0,0 +1,31 @@
+module UToy.Names (allNames, blockName, searchCaseInsensitive) where
+
+import Data.Char (ord)
+import Data.Maybe (maybeToList)
+import Data.Text (Text)
+import Data.Vector (Vector)
+
+import qualified Data.Text as Text
+import qualified Data.Vector as Vector
+import qualified Unicode.Char.General.Blocks as UnicodeBlocks
+import qualified Unicode.Char.General.Names as UnicodeNames
+
+-- | Retrieve name and aliases (suffixed with @*@) of a 'Char'.
+allNames :: Char -> [Text]
+allNames c = map Text.pack $
+  maybeToList (UnicodeNames.name c)
+  ++ map (++ "*") (UnicodeNames.nameAliases c)
+
+blockName :: Char -> Maybe Text
+blockName c = Text.pack . UnicodeBlocks.blockName . UnicodeBlocks.blockDefinition <$> UnicodeBlocks.block c
+
+searchCaseInsensitive :: Text -> [Char]
+searchCaseInsensitive search = filter go [minBound..maxBound]
+  where
+    go c = any matches $ Vector.unsafeIndex lowerNames (ord c - ord minBound)
+    matches t = Text.toLower search `Text.isInfixOf` t
+
+lowerNames :: Vector [Text]
+lowerNames = Vector.fromList $ map go [minBound..maxBound]
+  where
+    go = map Text.toLower . allNames

test/Spec.hs

@@ -1,2 +0,0 @@
-main :: IO ()
-main = putStrLn "Test suite not yet implemented"

utoy.cabal

@@ -1,11 +1,7 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.35.2.
---
--- see: https://github.com/sol/hpack
-
 name:           utoy
-version:        0.6.1
+version:        0.6.2
 author:         Paul Brinkmeier
 maintainer:     hallo@pbrinkmeier.de
 copyright:      2023 Paul Brinkmeier
@@ -24,6 +20,7 @@ library
   exposed-modules:
       UToy.Decode
       UToy.Parsers
+      UToy.Names
       UToy.Table
   other-modules:
       Paths_utoy
@@ -34,6 +31,9 @@ library
       attoparsec
     , base >=4.7 && <5
     , text
+    , unicode-data
+    , unicode-data-names
+    , vector
   default-language: Haskell2010
 
 executable utoy
@@ -50,24 +50,20 @@ executable utoy
     , http-media
     , servant-server
     , text
-    , unicode-data
-    , unicode-data-names
     , utoy
     , wai
     , warp
   default-language: Haskell2010
 
-test-suite utoy-test
+benchmark utoy-bench
   type: exitcode-stdio-1.0
-  main-is: Spec.hs
-  other-modules:
-      Paths_utoy
+  main-is: Main.hs
   hs-source-dirs:
-      test
-  ghc-options: -Wall -Wcompat -Widentities -Wincomplete-record-updates -Wincomplete-uni-patterns -Wmissing-export-lists -Wmissing-home-modules -Wpartial-fields -Wredundant-constraints -threaded -rtsopts -with-rtsopts=-N
+    bench
   build-depends:
-      attoparsec
-    , base >=4.7 && <5
+      base >=4.7 && <5
+    , criterion
     , text
-    , utoy
+    , unicode-data-names
+    , vector
   default-language: Haskell2010