commit aee34ef23e08a944f87d6bb4f972c56ba88dc6dd
author Hampus Avekvist <hampus.avekvist@hey.com> Fri Apr 18 18:18:06 2025 +0200
committer Christian Brabandt <cb@256bit.org> Fri Apr 18 18:21:34 2025 +0200
tree 3bac5871d46a2d0a86ade47cb9951b143060480a
parent 1d96caaa4b195043f84a0c83277b2038af4a7b50

patch 9.1.1321: filetype: MS ixx and mpp files are not recognized

Problem:  filetype: MS ixx and mpp files are not recognized
Solution: detect *.mpp and *.ixx files as c++ filetype
          (Hampus Avekvist)

closes: #17155

Signed-off-by: Hampus Avekvist <hampus.avekvist@hey.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/filetype.vim

diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index c2c639c..e850074 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1,7 +1,7 @@
 " Vim support file to detect file types
 "
 " Maintainer:	The Vim Project <https://github.com/vim/vim>
-" Last Change:	2025 Apr 15
+" Last Change:	2025 Apr 18
 " Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 " Listen very carefully, I will say this only once
@@ -429,6 +429,9 @@
 	au BufNewFile,BufRead *.C,*.H if !&fileignorecase | setf cpp | endif
 endif
 
+" MS files (ixx: C++ module interface file, Microsoft Project file)
+au BufNewFile,BufRead *.ixx,*.mpp setf cpp
+
 " C++ 20 modules (clang)
 " https://clang.llvm.org/docs/StandardCPlusPlusModules.html#file-name-requirement
 au BufNewFile,BufRead *.cppm,*.ccm,*.cxxm,*.c++m setf cpp

src/testdir/test_filetype.vim

diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 91460ce..6ec55ae 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -188,7 +188,7 @@
     cook: ['file.cook'],
     corn: ['file.corn'],
     cpon: ['file.cpon'],
-    cpp: ['file.cxx', 'file.c++', 'file.hh', 'file.hxx', 'file.hpp', 'file.ipp', 'file.moc', 'file.tcc', 'file.inl', 'file.tlh', 'file.cppm', 'file.ccm', 'file.cxxm', 'file.c++m'],
+    cpp: ['file.cxx', 'file.c++', 'file.hh', 'file.hxx', 'file.hpp', 'file.ipp', 'file.ixx', 'file.moc', 'file.tcc', 'file.inl', 'file.tlh', 'file.cppm', 'file.ccm', 'file.cxxm', 'file.c++m', 'file.mpp'],
     cqlang: ['file.cql'],
     crm: ['file.crm'],
     crontab: ['crontab', 'crontab.file', '/etc/cron.d/file', 'any/etc/cron.d/file'],

src/version.c

diff --git a/src/version.c b/src/version.c
index c255361..4c9f4ce 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1321,
+/**/
     1320,
 /**/
     1319,