diff --git a/ChangeLog.md b/ChangeLog.md
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+++ b/ChangeLog.md
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+# Revision history for simple-prompt
+
+## 0.1.0 (2023-04-02)
+- initial release with prompt, prompt_, yesno functions
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
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+Copyright (c) 2023, Jens Petersen
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Jens Petersen nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
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+++ b/README.md
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+# simple-prompt
+
+A little library for commandline text prompts for user input.
+
+- `prompt`: return a String
+- `prompt_` ignore input
+- `yesno` expects y/n answer
+
+Currently assumes unix since it reads from /dev/tty for fresh stdin,
+but it could probably easily be extended to work on Windows.
diff --git a/simple-prompt.cabal b/simple-prompt.cabal
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+++ b/simple-prompt.cabal
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+name:                simple-prompt
+version:             0.1.0
+synopsis:            Simple commandline text prompt functions
+description:
+        The library provides prompt functions for reading user input:
+        prompt returns the input given, prompt_ ignores the input,
+        and yesno asks for confirmation.
+license:             BSD3
+license-file:        LICENSE
+author:              Jens Petersen <juhpetersen@gmail.com>
+maintainer:          Jens Petersen <juhpetersen@gmail.com>
+copyright:           2023  Jens Petersen <juhpetersen@gmail.com>
+category:            System
+homepage:            https://github.com/juhp/simple-prompt
+bug-reports:         https://github.com/juhp/simple-prompt/issues
+build-type:          Simple
+extra-doc-files:     README.md
+                     ChangeLog.md
+cabal-version:       2.0
+tested-with:         GHC == 8.6.5
+                     || == 8.8.4
+                     || == 8.10.7
+                     || == 9.0.2
+                     || == 9.2.7
+                     || == 9.4.4
+
+source-repository head
+  type:                git
+  location:            https://github.com/juhp/simple-prompt.git
+
+library
+  build-depends:       base < 5,
+                       extra
+
+  default-language:    Haskell2010
+  exposed-modules:     SimplePrompt
+  hs-source-dirs:      src
+
+  ghc-options:         -Wall
+  if impl(ghc >= 8.0)
+    ghc-options:       -Wcompat
+                       -Widentities
+                       -Wincomplete-uni-patterns
+                       -Wincomplete-record-updates
+                       -Wredundant-constraints
+  if impl(ghc >= 8.2)
+    ghc-options:       -fhide-source-paths
+  if impl(ghc >= 8.4)
+    ghc-options:       -Wmissing-export-lists
+                       -Wpartial-fields
+  if impl(ghc >= 8.10)
+    ghc-options:       -Wunused-packages
diff --git a/src/SimplePrompt.hs b/src/SimplePrompt.hs
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--- /dev/null
+++ b/src/SimplePrompt.hs
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+module SimplePrompt (
+  prompt,
+  prompt_,
+  yesno
+  ) where
+
+import Control.Monad (void)
+import Data.Bool (bool)
+import Data.Char (isPrint)
+import Data.List.Extra (lower, trim)
+
+import System.IO
+
+prompt :: String -> IO String
+prompt s = do
+  putStr $ s ++ ": "
+  tty <- openFile "/dev/tty" ReadMode
+  inp <- hGetLine tty
+  if all isPrint inp
+    then return inp
+    else do
+    putStrLn $
+      "input rejected because of unprintable character(s): '" ++
+      show inp ++ "'"
+    prompt s
+
+prompt_ :: String -> IO ()
+prompt_ = void <$> prompt
+
+yesno :: Maybe Bool -> String -> IO Bool
+yesno mdefault desc = do
+  inp <- prompt $ desc ++ "? " ++ maybe "[y/n]" (bool "[y/N]" "[Y/n]") mdefault
+  case trim (lower inp) of
+    "y" -> return True
+    "yes" -> return True
+    "n" -> return False
+    "no" -> return False
+    "" -> maybe (yesno Nothing desc) return mdefault
+    _ ->  yesno mdefault desc