{tv/4lib shell-escape,krebs/4lib/shell.nix escape}

1 files changed, 15 insertions, 0 deletions

diff --git a/krebs/4lib/shell.nix b/krebs/4lib/shell.nix
new file mode 100644
index 000000000..48b220f87
--- /dev/null
+++ b/krebs/4lib/shell.nix
@@ -0,0 +1,15 @@
+{ lib, ... }:
+
+with builtins;
+with lib;
+
+rec {
+  escape =
+    let
+      isSafeChar = c: match "[-./0-9_a-zA-Z]" c != null;
+    in
+    stringAsChars (c:
+      if isSafeChar c then c
+      else if c == "\n" then "'\n'"
+      else "\\${c}");
+}