Commit: patch 9.1.1732: filetype: .inc file detection can be improved

[Christian Brabandt]

patch 9.1.1732: filetype: .inc file detection can be improved

Commit: https://github.com/vim/vim/commit/9fd1a657d2efae5cff278eb5acaa380623a50cf6
Author: Martin Schwan <m.sc...@phytec.de>
Date: Thu Sep 4 22:09:26 2025 +0200

patch 9.1.1732: filetype: .inc file detection can be improved

Problem: filetype: .inc file detection can be improved
Solution: Update filetype detection for Pascal and BitBake code
(Martin Schwan).

Fix the detection of .inc files containing Pascal and BitBake code:

- the concatenated string, merged from three lines, only contains one
beginning and the pattern "^" would not match as expected. Use a range()
loop to iterate each line string individually. This way, the pattern "^"
works for beginning of lines.

- improve BitBake include file detection by also matching forward-slashes
"/" in variable names and assignment operators with a dot ".=" and "=.".
Valid examples, which should match, are:

PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
MACHINEOVERRIDES =. "qemuall:"
BBPATH .= ":${LAYERDIR}"

- parse twenty instead of just three lines, to accommodate for potential
comments at the beginning of files

closes: #18202

Signed-off-by: Martin Schwan <m.sc...@phytec.de>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/autoload/dist/ft.vim b/runtime/autoload/dist/ft.vim
index bb2bc2c1c..4d39689cc 100644
--- a/runtime/autoload/dist/ft.vim
+++ b/runtime/autoload/dist/ft.vim
@@ -3,7 +3,7 @@ vim9script
# Vim functions for file type detection
#
# Maintainer: The Vim Project <https://github.com/vim/vim>
-# Last Change: 2025 Aug 26
+# Last Change: 2025 Sep 04
# Former Maintainer: Bram Moolenaar <Br...@vim.org>

# These functions are moved here from runtime/filetype.vim to make startup
@@ -828,26 +828,32 @@ export def FTinc()
if exists("g:filetype_inc")
exe "setf " .. g:filetype_inc
else
- var lines = getline(1) .. getline(2) .. getline(3)
- if lines =~? "perlscript"
- setf aspperl
- elseif lines =~ "<%"
- setf aspvbs
- elseif lines =~ "<?"
- setf php
- # Pascal supports // comments but they're vary rarely used for file
- # headers so assume POV-Ray
- elseif lines =~ '^\s*\%({\|(\*\)' || lines =~? ft_pascal_keywords
- setf pascal
- elseif lines =~# '\<\%(require\|inherit\)\>' || lines =~# '[A-Z][A-Za-z0-9_:${}]*\s\+\%(??\|[?:+]\)\?= '
- setf bitbake
- else
- FTasmsyntax()
- if exists("b:asmsyntax")
- exe "setf " .. fnameescape(b:asmsyntax)
- else
- setf pov
+ for lnum in range(1, min([line("$"), 20]))
+ var line = getline(lnum)
+ if line =~? "perlscript"
+ setf aspperl
+ return
+ elseif line =~ "<%"
+ setf aspvbs
+ return
+ elseif line =~ "<?"
+ setf php
+ return
+ # Pascal supports // comments but they're vary rarely used for file
+ # headers so assume POV-Ray
+ elseif line =~ '^\s*\%({\|(\*\)' || line =~? ft_pascal_keywords
+ setf pascal
+ return
+ elseif line =~# '\<\%(require\|inherit\)\>' || line =~# '[A-Z][A-Za-z0-9_:${}/]*\s\+\%(??\|[?:+.]\)\?=.\? '
+ setf bitbake
+ return
endif
+ endfor
+ FTasmsyntax()
+ if exists("b:asmsyntax")
+ exe "setf " .. fnameescape(b:asmsyntax)
+ else
+ setf pov
endif
endif
enddef
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index ee0eaa095..d91d1bafe 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -2694,6 +2694,21 @@ func Test_inc_file()
call assert_equal('bitbake', &filetype)
bwipe!

+ call writefile(['PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"'], 'Xfile.inc')
+ split Xfile.inc
+ call assert_equal('bitbake', &filetype)
+ bwipe!
+
+ call writefile(['MACHINEOVERRIDES =. "qemuall:"'], 'Xfile.inc')
+ split Xfile.inc
+ call assert_equal('bitbake', &filetype)
+ bwipe!
+
+ call writefile(['BBPATH .= ":${LAYERDIR}"'], 'Xfile.inc')
+ split Xfile.inc
+ call assert_equal('bitbake', &filetype)
+ bwipe!
+
" asm
call writefile(['asmsyntax=foo'], 'Xfile.inc')
split Xfile.inc
diff --git a/src/version.c b/src/version.c
index c2381542b..b28f72e8b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -724,6 +724,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 1732,
/**/
1731,
/**/