Add md4c bug 107

References: https://github.com/mity/md4c/issues/107

6 files changed, 100 insertions, 4 deletions

diff --git a/.reuse/dep5 b/.reuse/dep5
index ea56b84..866bedc 100644
--- a/.reuse/dep5
+++ b/.reuse/dep5
@@ -1,7 +1,11 @@
 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Source: https://trong.loang.org/~cnx/bux
 Upstream-Name: bux
-Upstream-Contact: Nguyễn Gia Phong <mcsinyx@disroot.org>
+Upstream-Contact: Nguyễn Gia Phong <cnx@loang.net>
+
+Files: md4c/fix-pkgconfig.patch
+Copyright: 2023 Nguyễn Gia Phong
+License: AGPL-3.0-or-later
 
 Files: README.md
 Copyright: N/A
diff --git a/cppcheck.nix b/cppcheck/default.nix
index 60991a7..60991a7 100644
--- a/cppcheck.nix
+++ b/cppcheck/default.nix
diff --git a/grep.nix b/grep/default.nix
index b430b50..ae1e9d3 100644
--- a/grep.nix
+++ b/grep/default.nix
@@ -40,6 +40,5 @@ stdenv.mkDerivation rec {
     '';
     license = licenses.gpl3Plus;
     platforms = platforms.all;
-    mainProgram = "grep";
   };
 }
diff --git a/md4c/default.nix b/md4c/default.nix
new file mode 100644
index 0000000..d5fb39e
--- /dev/null
+++ b/md4c/default.nix
@@ -0,0 +1,67 @@
+# Recipe for building md4c at specific snapshot
+#
+# SPDX-FileCopyrightText: 2021 Anderson Torres
+# SPDX-FileCopyrightText: 2021 Thomas Gerbet
+# SPDX-FileCopyrightText: 2021 Leif Middelschulte
+# SPDX-License-Identifier: MIT
+#
+# SPDX-FileCopyrightText: 2023 Nguyễn Gia Phong
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+{ lib, stdenv, version, fetchFromGitHub, commit, hash
+, binRenameHook, cmake, pkg-config }:
+
+stdenv.mkDerivation rec {
+  pname = "md4c";
+  inherit version;
+
+  src = fetchFromGitHub {
+    owner = "mity";
+    repo = pname;
+    rev = commit;
+    inherit hash;
+  };
+
+  patches = [
+    # We set CMAKE_INSTALL_LIBDIR to the absolute path in $out, so
+    # prefix and exec_prefix cannot be $out, too
+    # Use CMake's _FULL_ variables instead of `prefix` concatenation.
+    ./fix-pkgconfig.patch
+  ];
+
+  nativeBuildInputs = [ binRenameHook cmake pkg-config ];
+
+  meta = with lib; {
+    description = "Markdown parser made in C";
+    longDescription = ''
+      MD4C is Markdown parser implementation in C, with the following features:
+
+      - Compliance: Generally, MD4C aims to be compliant to the latest version
+        of CommonMark specification. Currently, we are fully compliant to
+        CommonMark 0.29.
+      - Extensions: MD4C supports some commonly requested and accepted
+        extensions. See below.
+      - Performance: MD4C is very fast.
+      - Compactness: MD4C parser is implemented in one source file and one
+        header file. There are no dependencies other than standard C library.
+      - Embedding: MD4C parser is easy to reuse in other projects, its API is
+        very straightforward: There is actually just one function, md_parse().
+      - Push model: MD4C parses the complete document and calls few callback
+        functions provided by the application to inform it about a start/end of
+        every block, a start/end of every span, and with any textual contents.
+      - Portability: MD4C builds and works on Windows and POSIX-compliant
+        OSes. (It should be simple to make it run also on most other platforms,
+        at least as long as the platform provides C standard library, including
+        a heap memory management.)
+      - Encoding: MD4C by default expects UTF-8 encoding of the input
+        document. But it can be compiled to recognize ASCII-only control
+        characters (i.e. to disable all Unicode-specific code), or (on Windows)
+        to expect UTF-16 (i.e. what is on Windows commonly called just
+        "Unicode"). See more details below.
+      - Permissive license: MD4C is available under the MIT license.
+    '';
+    homepage = "https://github.com/mity/md4c";
+    license = licenses.mit;
+    platforms = platforms.all;
+  };
+}
diff --git a/md4c/fix-pkgconfig.patch b/md4c/fix-pkgconfig.patch
new file mode 100644
index 0000000..cf3c264
--- /dev/null
+++ b/md4c/fix-pkgconfig.patch
@@ -0,0 +1,14 @@
+diff --git a/md4c/md4c.pc.in b/md4c/md4c.pc.in
+index 61c78d890249..72943b52d050 100644
+--- a/md4c/md4c.pc.in
++++ b/md4c/md4c.pc.in
+@@ -1,7 +1,7 @@
+ prefix=@CMAKE_INSTALL_PREFIX@
+ exec_prefix=@CMAKE_INSTALL_PREFIX@
+-libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
+-includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
++libdir=@CMAKE_INSTALL_LIBDIR@
++includedir=@CMAKE_INSTALL_INCLUDEDIR@
+ 
+ Name: @PROJECT_NAME@
+ Description: @PROJECT_DESCRIPTION@
diff --git a/shell.nix b/shell.nix
index 52541b8..8ec7eb8 100644
--- a/shell.nix
+++ b/shell.nix
@@ -19,7 +19,7 @@ let
     executable = true;
     destination = "/nix-support/setup-hook";
   };
-  cppcheck = version: commit: hash: callPackage ./cppcheck.nix {
+  cppcheck = version: commit: hash: callPackage ./cppcheck {
     inherit version;
     inherit commit;
     inherit hash;
@@ -33,7 +33,7 @@ let
     url = "mirror://gnu/grep/grep-2.12.tar.xz";
     hash = "sha256-Tc4KT7g93QEg31HgC1L6dg8u2GddTUwLCuZCumkurWQ=";
   };
-  grep = version: base: commit: hash: callPackage ./grep.nix {
+  grep = version: base: commit: hash: callPackage ./grep {
     inherit version;
     inherit base;
     snapshot = fetchurl {
@@ -42,6 +42,12 @@ let
     };
     binRenameHook = binRenameHook version;
   };
+  md4c = version: commit: hash: callPackage ./md4c {
+    inherit version;
+    inherit commit;
+    inherit hash;
+    binRenameHook = binRenameHook version;
+  };
 in mkShell {
   packages = [
     (cppcheck "9261.buggy"
@@ -62,5 +68,11 @@ in mkShell {
     (grep "55cf7b6a" grep-2_12
       "55cf7b6a1905320c36702a476b09ebb29a2934d3"
       "sha256-uUHEG4bDDNFiVgj/1mIkttp1B7tlZ1HOWJGPEfbCErU=")
+    (md4c "107.buggy"
+      "e278609ee06ad7f9efcb06da48188a4b837ed11b"
+      "sha256-UoqBSOnlfDsTHz/uLGIUEgmTSiU408iUcwAJTLdbEPM=")
+    (md4c "107.fixed"
+      "5d7c35973e5d06b46ca21b5b6e292c56dba7ca23"
+      "sha256-N/vIRhXuU948z0O4NXKMSKOZGAEE6UjGDT5oqrGpUy8=")
   ];
 }