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authortv <tv@shackspace.de>2015-08-28 20:09:54 +0200
committertv <tv@shackspace.de>2015-08-28 20:15:57 +0200
commit015720ef89b81d3d17b3aa7dcaa1e1489c0f87a8 (patch)
tree6e9fc6eef15bcff823885181b10579b555379fc1 /krebs
parent0714ed3ea6c889c0576edd8075dc7c2b50d3e8b5 (diff)
{tv/4lib shell-escape,krebs/4lib/shell.nix escape}
Diffstat (limited to 'krebs')
-rw-r--r--krebs/4lib/default.nix1
-rw-r--r--krebs/4lib/shell.nix15
2 files changed, 16 insertions, 0 deletions
diff --git a/krebs/4lib/default.nix b/krebs/4lib/default.nix
index b67585335..8b587dfb2 100644
--- a/krebs/4lib/default.nix
+++ b/krebs/4lib/default.nix
@@ -14,5 +14,6 @@ builtins // lib // rec {
dns = import ./dns.nix { inherit lib; };
listset = import ./listset.nix { inherit lib; };
+ shell = import ./shell.nix { inherit lib; };
tree = import ./tree.nix { inherit lib; };
}
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}");
+}