nixpkgs.lib: Add escapeNixString

2017-12-02 13:03:40 -05:00 · 2017-12-02 13:03:40 -05:00 · 6281eb123b
commit 6281eb123b
parent 7d27f25582
1 changed files with 8 additions and 0 deletions
--- a/lib/strings.nix
+++ b/lib/strings.nix
@ -219,6 +219,14 @@ rec {
  */
  escapeShellArgs = concatMapStringsSep " " escapeShellArg;

+  /* Turn a string into a Nix expression representing that string
+
+     Example:
+       escapeNixString "hello\${}\n"
+       => "\"hello\\\${}\\n\""
+  */
+  escapeNixString = s: escape ["$"] (builtins.toJSON s);
+
  /* Obsolete - use replaceStrings instead. */
  replaceChars = builtins.replaceStrings or (
    del: new: s: