Add escapix

escape.nix

@@ -0,0 +1,57 @@
+# Taken from https://github.com/nrabulinski/cursed-nix. Huge thanks!
+
+let
+  lib = (import <nixpkgs> {}).lib;
+
+  startMarker = "__START__";
+  endMarker   = "__END__";
+
+  dropFirst = lib.drop 1;
+  dropLast  = list: lib.sublist 0 (lib.length list - 1) list;
+
+  yeet = string: builtins.unsafeDiscardStringContext (builtins.unsafeDiscardOutputDependency string);
+
+  getContent = drvPath: let
+    drv     = builtins.readFile drvPath;
+    isValid = builtins.match ".*${lib.escapeRegex startMarker}.*${lib.escapeRegex endMarker}.*" drv != null;
+    content = lib.pipe drv [
+      (lib.splitString startMarker)
+      dropFirst
+      (lib.concatStringsSep startMarker)
+      (lib.splitString endMarker)
+      dropLast
+      (lib.concatStringsSep endMarker)
+    ];
+  in if isValid then content else toString (import drvPath);
+
+  escape = string: let
+    ctx      = builtins.getContext string;
+    ctxNames = lib.attrNames ctx;
+
+    recurseSubDrv = restNames: strings: let
+      head        = lib.head restNames;
+      headDrv     = import head;
+      last        = (lib.length restNames) == 1;
+      headContent = getContent head;
+    in map (string: let
+      m = lib.splitString (yeet headDrv.outPath) string;
+      __m = if last then map lib.strings.escapeXML else recurseSubDrv (lib.tail restNames);
+      out = __m m;
+    in lib.concatStringsSep headContent out) strings;
+
+    final = recurseSubDrv ctxNames [ string ];
+    final' = assert (lib.length final == 1); lib.head final;
+  in if builtins.hasContext string then
+    yeet final'
+  else
+    lib.strings.escapeXML string;
+
+  raw = string: derivation {
+    name       = "_";
+    system     = "_";
+    builder    = "_";
+    rawContent = "${startMarker}${yeet string}${endMarker}";
+  };
+in {
+  inherit escape raw;
+}

flake.nix

@@ -8,7 +8,8 @@
     last     = n: string: builtins.substring (builtins.stringLength string - n) n string;
     dropLast = n: string: builtins.substring 0 (builtins.stringLength string - n) string;
 
-    escape = string: string; # TODO
+    escapix = import ./escape.nix;
+    inherit (escapix) escape;
 
     attrsetToHtmlAttrs = attrs:
       builtins.concatStringsSep " "
@@ -24,6 +25,8 @@
 
       else "<${name}>";
   in {
+    inherit (escapix) raw;
+
     __findFile = _: name: {
       outPath = dottedNameToTag name;