From be1f2b3b7d2fd10d8581af2c3ac4173bfea8f4f0 Mon Sep 17 00:00:00 2001
From: Nick Cao <nickcao@nichi.co>
Date: Thu, 30 Apr 2026 19:16:24 -0400
Subject: [PATCH] docbook_sgml_dtd_45: init at 4.5

---
 .../sgml+xml/schemas/sgml-dtd/docbook/3.1.nix | 42 --------------
 .../schemas/sgml-dtd/docbook/default.nix      | 17 ++++++
 .../schemas/sgml-dtd/docbook/generic.nix      | 57 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  7 ++-
 4 files changed, 79 insertions(+), 44 deletions(-)
 delete mode 100644 pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix
 create mode 100644 pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/default.nix
 create mode 100644 pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/generic.nix

diff --git a/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix b/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix
deleted file mode 100644
index b90123017bde..000000000000
--- a/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix
+++ /dev/null
@@ -1,42 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  unzip,
-}:
-
-let
-
-  src = fetchurl {
-    url = "http://www.oasis-open.org/docbook/sgml/3.1/docbk31.zip";
-    sha256 = "0f25ch7bywwhdxb1qa0hl28mgq1blqdap3rxzamm585rf4kis9i0";
-  };
-
-  isoents = fetchurl {
-    url = "http://www.oasis-open.org/cover/ISOEnts.zip";
-    sha256 = "1clrkaqnvc1ja4lj8blr0rdlphngkcda3snm7b9jzvcn76d3br6w";
-  };
-
-in
-
-stdenv.mkDerivation {
-  pname = "docbook-sgml";
-  version = "3.1";
-
-  dontUnpack = true;
-
-  nativeBuildInputs = [ unzip ];
-
-  installPhase = ''
-    o=$out/sgml/dtd/docbook-3.1
-    mkdir -p $o
-    cd $o
-    unzip ${src}
-    unzip ${isoents}
-    sed -e "s/iso-/ISO/" -e "s/.gml//" -i docbook.cat
-  '';
-
-  meta = {
-    platforms = lib.platforms.unix;
-  };
-}
diff --git a/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/default.nix b/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/default.nix
new file mode 100644
index 000000000000..f2cc962adc74
--- /dev/null
+++ b/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/default.nix
@@ -0,0 +1,17 @@
+{
+  callPackage,
+}:
+{
+  docbook_sgml_dtd_31 = callPackage (import ./generic.nix {
+    version = "3.1";
+    hash = "sha256-ICYdJ3G5oFKr+j2PqxqmK+BXkaAQKBxWb5Bzvw5kRTg=";
+  }) { };
+  docbook_sgml_dtd_41 = callPackage (import ./generic.nix {
+    version = "4.1";
+    hash = "sha256-3qr88KNndpLnrUQSwOQcHbPp2mzc2z3TKyzB+cl9YxE=";
+  }) { };
+  docbook_sgml_dtd_45 = callPackage (import ./generic.nix {
+    version = "4.5";
+    hash = "sha256-gEPlFOgMbBnLFGtdN5N9EwW/Or+bAJfDbff3D2Ec30M=";
+  }) { };
+}
diff --git a/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/generic.nix b/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/generic.nix
new file mode 100644
index 000000000000..9027dbc141f9
--- /dev/null
+++ b/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/generic.nix
@@ -0,0 +1,57 @@
+{ version, hash }:
+{
+  lib,
+  stdenv,
+  fetchurl,
+  unzip,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "docbook-sgml";
+  inherit version;
+
+  src = fetchurl {
+    url = "https://archive.docbook.org/sgml/${finalAttrs.version}/${
+      if lib.versionAtLeast finalAttrs.version "4.2" then
+        "docbook-${finalAttrs.version}"
+      else
+        "docbk${lib.replaceStrings [ "." ] [ "" ] finalAttrs.version}"
+    }.zip";
+    inherit hash;
+  };
+
+  isoents = fetchurl {
+    url = "https://web.archive.org/web/20250220122223/http://xml.coverpages.org/ISOEnts.zip";
+    hash = "sha256-3OQ1mjmW7S/TOtXqoRqbz8JLWwaZLiQpUTKwbbGambI=";
+  };
+
+  nativeBuildInputs = [
+    unzip
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p "$out/sgml/dtd/docbook-${finalAttrs.version}"
+    unzip -d "$out/sgml/dtd/docbook-${finalAttrs.version}" "$src"
+    unzip -d "$out/sgml/dtd/docbook-${finalAttrs.version}" "$isoents"
+
+    substituteInPlace "$out/sgml/dtd/docbook-${finalAttrs.version}/docbook.cat" \
+      --replace-fail "iso-" "ISO" \
+      --replace-fail ".gml" ""
+
+    runHook postInstall
+  '';
+
+  dontUnpack = true;
+  strictDeps = true;
+  __structuredAttrs = true;
+
+  meta = {
+    description = "DocBook ${finalAttrs.version} SGML Schemas";
+    homepage = "https://docbook.org/";
+    license = lib.licenses.docBookDtd;
+    maintainers = with lib.maintainers; [ nickcao ];
+    platforms = lib.platforms.all;
+  };
+})
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ee06ca3ffbb6..77cf06a69cac 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8811,10 +8811,13 @@ with pkgs;
 
   dejavu_fonts = lowPrio (callPackage ../data/fonts/dejavu-fonts { });
 
-  docbook_sgml_dtd_31 = callPackage ../data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix { };
-
   docbook_sgml_dtd_41 = callPackage ../data/sgml+xml/schemas/sgml-dtd/docbook/4.1.nix { };
 
+  inherit (callPackage ../data/sgml+xml/schemas/sgml-dtd/docbook { })
+    docbook_sgml_dtd_31
+    docbook_sgml_dtd_45
+    ;
+
   docbook_xml_dtd_412 = callPackage ../data/sgml+xml/schemas/xml-dtd/docbook/4.1.2.nix { };
 
   docbook_xml_dtd_42 = callPackage ../data/sgml+xml/schemas/xml-dtd/docbook/4.2.nix { };