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path: root/third_party/lisp/uax-15.nix
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{ depot, pkgs, ... }:

let
  inherit (pkgs) runCommand;
  inherit (depot.nix.buildLisp) bundled;
  src = with pkgs; srcOnly lispPackages.uax-15;
in depot.nix.buildLisp.library {
  name = "uax-15";

  deps = with depot.third_party.lisp; [
    split-sequence
    cl-ppcre
    (bundled "asdf")
  ];

  srcs = [
    "${src}/src/package.lisp"
    "${src}/src/utilities.lisp"
    "${src}/src/trivial-utf-16.lisp"

    # uax-15 has runtime data files that need to have their references
    # replaced with store paths.
    #
    # additionally there are some wonky variable usages of variables
    # that are never defined, for which we patch in defvar statements.
    (runCommand "precomputed-tables.lisp" {} ''
      substitute ${src}/src/precomputed-tables.lisp precomputed-tables.lisp \
        --replace "(asdf:system-source-directory (asdf:find-system 'uax-15 nil))" \
                  '"${src}/"'

      sed -i precomputed-tables.lisp \
        -e '10i(defvar *canonical-decomp-map*)' \
        -e '10i(defvar *compatible-decomp-map*)' \
        -e '10i(defvar *canonical-combining-class*)'

      cp precomputed-tables.lisp $out
    '')

    "${src}/src/normalize-backend.lisp"
    "${src}/src/uax-15.lisp"
  ];
}