# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1649514603 -7200
# Node ID cc4d3ded40046c79fa76db4eadab64a4ddb4cff2
# Parent  24fc9545bf2a082df1e6d3661bd759c84eb90cb0
patch 8.2.0003: Build file dependencies are incomplete

Commit: https://github.com/vim/vim/commit/0bbf09ca41382302493e5db51b01d2fbdc778586
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sat Apr 9 15:16:53 2022 +0100

    patch 8.2.0003: Build file dependencies are incomplete

    Problem:    Build file dependencies are incomplete.
    Solution:   Fix the dependencies. (Ken Takata, closes https://github.com/vim/vim/issues/5356)

diff --git a/runtime/autoload/dist/ft.vim b/runtime/autoload/dist/ft.vim
--- a/runtime/autoload/dist/ft.vim
+++ b/runtime/autoload/dist/ft.vim
@@ -107,6 +107,25 @@ export def BindzoneCheck(default = '')
   endif
 enddef
 
+# Returns true if file content looks like RAPID
+def IsRapid(sChkExt: string = ""): bool
+  if sChkExt == "cfg"
+    return getline(1) =~? '\v^%(EIO|MMC|MOC|PROC|SIO|SYS):CFG'
+  endif
+  # called from FTmod, FTprg or FTsys
+  return getline(nextnonblank(1)) =~? '\v^\s*%(\%{3}|module\s+\k+\s*%(\(|$))'
+enddef
+
+export def FTcfg()
+  if exists("g:filetype_cfg")
+    exe "setf " .. g:filetype_cfg
+  elseif IsRapid("cfg")
+    setf rapid
+  else
+    setf cfg
+  endif
+enddef
+
 export def FTlpc()
   if exists("g:lpc_syntax_for_c")
     var lnum = 1
@@ -168,7 +187,7 @@ enddef
 
 export def FTent()
   # This function checks for valid cl syntax in the first five lines.
-  # Look for either an opening comment, '#', or a block start, '{".
+  # Look for either an opening comment, '#', or a block start, '{'.
   # If not found, assume SGML.
   var lnum = 1
   while lnum < 6
@@ -410,6 +429,36 @@ export def FTmm()
   setf nroff
 enddef
 
+# Returns true if file content looks like LambdaProlog
+def IsLProlog(): bool
+  # skip apparent comments and blank lines, what looks like 
+  # LambdaProlog comment may be RAPID header
+  var l: number = nextnonblank(1)
+  while l > 0 && l < line('$') && getline(l) =~ '^\s*%' # LambdaProlog comment
+    l = nextnonblank(l + 1)
+  endwhile
+  # this pattern must not catch a go.mod file
+  return getline(l) =~ '\<module\s\+\w\+\s*\.\s*\(%\|$\)'
+enddef
+
+# Determine if *.mod is ABB RAPID, LambdaProlog, Modula-2, Modsim III or go.mod
+export def FTmod()
+  if exists("g:filetype_mod")
+    exe "setf " .. g:filetype_mod
+  elseif IsLProlog()
+    setf lprolog
+  elseif getline(nextnonblank(1)) =~ '\%(\<MODULE\s\+\w\+\s*;\|^\s*(\*\)'
+    setf modula2
+  elseif IsRapid()
+    setf rapid
+  elseif expand("<afile>") =~ '\<go.mod$'
+    setf gomod
+  else
+    # Nothing recognized, assume modsim3
+    setf modsim3
+  endif
+enddef
+
 export def FTpl()
   if exists("g:filetype_pl")
     exe "setf " .. g:filetype_pl
@@ -526,6 +575,18 @@ export def FTpp()
   endif
 enddef
 
+# Determine if *.prg is ABB RAPID. Can also be Clipper, FoxPro or eviews
+export def FTprg()
+  if exists("g:filetype_prg")
+    exe "setf " .. g:filetype_prg
+  elseif IsRapid()
+    setf rapid
+  else
+    # Nothing recognized, assume Clipper
+    setf clipper
+  endif
+enddef
+
 export def FTr()
   var max = line("$") > 50 ? 50 : line("$")
 
@@ -572,7 +633,7 @@ export def McSetf()
       return
     endif
   endfor
-  setf m4  " Default: Sendmail .mc file
+  setf m4  # Default: Sendmail .mc file
 enddef
 
 # Called from filetype.vim and scripts.vim.
@@ -735,6 +796,14 @@ export def FTperl(): number
   return 0
 enddef
 
+export def FTsys()
+  if IsRapid()
+    setf rapid
+  else
+    setf bat
+  endif
+enddef
+
 # Choose context, plaintex, or tex (LaTeX) based on these rules:
 # 1. Check the first line of the file for "%&<format>".
 # 2. Check the first 1000 non-comment lines for LaTeX or ConTeXt keywords.
diff --git a/runtime/doc/filetype.txt b/runtime/doc/filetype.txt
--- a/runtime/doc/filetype.txt
+++ b/runtime/doc/filetype.txt
@@ -148,6 +148,7 @@ variables can be used to overrule the fi
 	*.i		g:filetype_i	|ft-progress-syntax|
 	*.inc		g:filetype_inc
 	*.m		g:filetype_m	|ft-mathematica-syntax|
+	*.mod		g:filetype_mod
 	*.p		g:filetype_p	|ft-pascal-syntax|
 	*.pl		g:filetype_pl
 	*.pp		g:filetype_pp	|ft-pascal-syntax|
diff --git a/runtime/filetype.vim b/runtime/filetype.vim
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -205,11 +205,13 @@ au BufNewFile,BufRead *.iba,*.ibi		setf 
 " FreeBasic file (similar to QBasic)
 au BufNewFile,BufRead *.fb			setf freebasic
 
-" Batch file for MSDOS.
-au BufNewFile,BufRead *.bat,*.sys		setf dosbatch
+" Batch file for MSDOS. See dist#ft#FTsys for *.sys
+au BufNewFile,BufRead *.bat 			setf dosbatch
 " *.cmd is close to a Batch file, but on OS/2 Rexx files also use *.cmd.
 au BufNewFile,BufRead *.cmd
 	\ if getline(1) =~ '^/\*' | setf rexx | else | setf dosbatch | endif
+" ABB RAPID or Batch file for MSDOS.
+au BufNewFile,BufRead *.sys\c 			call dist#ft#FTsys()
 
 " Batch file for 4DOS
 au BufNewFile,BufRead *.btm			call dist#ft#FTbtm()
@@ -360,13 +362,8 @@ au BufNewFile,BufRead *.eni			setf cl
 " Clever or dtd
 au BufNewFile,BufRead *.ent			call dist#ft#FTent()
 
-" Clipper (or FoxPro; could also be eviews)
-au BufNewFile,BufRead *.prg
-	\ if exists("g:filetype_prg") |
-	\   exe "setf " . g:filetype_prg |
-	\ else |
-	\   setf clipper |
-	\ endif
+" Clipper, FoxPro, ABB RAPID or eviews
+au BufNewFile,BufRead *.prg\c			call dist#ft#FTprg()
 
 " Clojure
 au BufNewFile,BufRead *.clj,*.cljs,*.cljx,*.cljc		setf clojure
@@ -444,7 +441,7 @@ au BufNewFile,BufRead *quake[1-3]/*.cfg	
 au BufNewFile,BufRead *.qc			setf c
 
 " Configure files
-au BufNewFile,BufRead *.cfg			setf cfg
+au BufNewFile,BufRead *.cfg\c			call dist#ft#FTcfg()
 
 " Cucumber
 au BufNewFile,BufRead *.feature			setf cucumber
@@ -980,7 +977,7 @@ au BufNewFile,BufRead *.latte,*.lte		set
 " Limits
 au BufNewFile,BufRead */etc/limits,*/etc/*limits.conf,*/etc/*limits.d/*.conf	setf limits
 
-" LambdaProlog (*.mod too, see Modsim)
+" LambdaProlog (see dist#ft#FTmod for *.mod)
 au BufNewFile,BufRead *.sig			setf lprolog
 
 " LDAP LDIF
@@ -1143,18 +1140,11 @@ au BufNewFile,BufRead *.mms			call dist#
 " Symbian meta-makefile definition (MMP)
 au BufNewFile,BufRead *.mmp			setf mmp
 
-" Modsim III (or LambdaProlog)
-au BufNewFile,BufRead *.mod
-	\ if expand("<afile>") =~ '\<go.mod$' |
-	\   setf gomod |
-	\ elseif getline(1) =~ '\<module\>' |
-	\   setf lprolog |
-	\ else |
-	\   setf modsim3 |
-	\ endif
-
-" Modula-2  (.md removed in favor of Markdown)
-au BufNewFile,BufRead *.m2,*.DEF,*.MOD,*.mi	setf modula2
+" ABB Rapid, Modula-2, Modsim III or LambdaProlog
+au BufNewFile,BufRead *.mod\c 			call dist#ft#FTmod()
+
+" Modula-2  (.md removed in favor of Markdown, see dist#ft#FTmod for *.MOD)
+au BufNewFile,BufRead *.m2,*.DEF,*.mi		setf modula2
 
 " Modula-3 (.m3, .i3, .mg, .ig)
 au BufNewFile,BufRead *.[mi][3g]		setf modula3
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -99,7 +99,7 @@ let s:filename_checks = {
     \ 'cdrtoc': ['file.toc'],
     \ 'cf': ['file.cfm', 'file.cfi', 'file.cfc'],
     \ 'cfengine': ['cfengine.conf'],
-    \ 'cfg': ['file.cfg', 'file.hgrc', 'filehgrc', 'hgrc', 'some-hgrc'],
+    \ 'cfg': ['file.hgrc', 'filehgrc', 'hgrc', 'some-hgrc'],
     \ 'ch': ['file.chf'],
     \ 'chaiscript': ['file.chai'],
     \ 'chaskell': ['file.chs'],
@@ -150,7 +150,7 @@ let s:filename_checks = {
     \ 'dircolors': ['.dir_colors', '.dircolors', '/etc/DIR_COLORS', 'any/etc/DIR_COLORS'],
     \ 'dnsmasq': ['/etc/dnsmasq.conf', '/etc/dnsmasq.d/file', 'any/etc/dnsmasq.conf', 'any/etc/dnsmasq.d/file'],
     \ 'dockerfile': ['Containerfile', 'Dockerfile', 'file.Dockerfile', 'Dockerfile.debian', 'Containerfile.something'],
-    \ 'dosbatch': ['file.bat', 'file.sys'],
+    \ 'dosbatch': ['file.bat'],
     \ 'dosini': ['.editorconfig', '/etc/pacman.conf', '/etc/yum.conf', 'file.ini', 'npmrc', '.npmrc', 'php.ini', 'php.ini-5', 'php.ini-file', '/etc/yum.repos.d/file', 'any/etc/pacman.conf', 'any/etc/yum.conf', 'any/etc/yum.repos.d/file', 'file.wrap'],
     \ 'dot': ['file.dot', 'file.gv'],
     \ 'dracula': ['file.drac', 'file.drc', 'filelvs', 'filelpe', 'drac.file', 'lpe', 'lvs', 'some-lpe', 'some-lvs'],
@@ -616,7 +616,7 @@ let s:filename_checks = {
     \ }
 
 let s:filename_case_checks = {
-    \ 'modula2': ['file.DEF', 'file.MOD'],
+    \ 'modula2': ['file.DEF'],
     \ 'bzl': ['file.BUILD', 'BUILD'],
     \ }
 
@@ -832,6 +832,36 @@ func Test_bas_file()
   filetype off
 endfunc
 
+" Test dist#ft#FTcfg()
+func Test_cfg_file()
+  filetype on
+
+  " *.cfg defaults to cfg
+  call writefile(['looks like cfg'], 'cfgfile.cfg')
+  split cfgfile.cfg
+  call assert_equal('cfg', &filetype)
+
+  let g:filetype_cfg = 'other'
+  edit
+  call assert_equal('other', &filetype)
+  bwipe!
+  unlet g:filetype_cfg
+
+  " RAPID cfg
+  let ext = 'cfg'
+  for i in ['EIO', 'MMC', 'MOC', 'PROC', 'SIO', 'SYS']
+    call writefile([i .. ':CFG'], 'cfgfile.' .. ext)
+    execute "split cfgfile." .. ext
+    call assert_equal('rapid', &filetype)
+    bwipe!
+    call delete('cfgfile.' .. ext)
+    " check different case of file extension
+    let ext = substitute(ext, '\(\l\)', '\u\1', '')
+  endfor
+
+  filetype off
+endfunc
+
 func Test_d_file()
   filetype on
 
@@ -1278,6 +1308,81 @@ func Test_m_file()
   filetype off
 endfunc
 
+func Test_mod_file()
+  filetype on
+
+  " *.mod defaults to Modsim III
+  call writefile(['locks like Modsim III'], 'modfile.mod')
+  split modfile.mod
+  call assert_equal('modsim3', &filetype)
+  bwipe!
+
+  " Users preference set by g:filetype_mod
+  let g:filetype_mod = 'lprolog'
+  split modfile.mod
+  call assert_equal('lprolog', &filetype)
+  unlet g:filetype_mod
+  bwipe!
+
+  " RAPID header start with a line containing only "%%%", 
+  " but is not always present.
+  call writefile(['%%%'], 'modfile.mod')
+  split modfile.mod
+  call assert_equal('rapid', &filetype)
+  bwipe!
+  call delete('modfile.mod')
+
+  " RAPID supports umlauts in module names, leading spaces,
+  " the .mod extension is not case sensitive.
+  call writefile(['  module ÜmlautModule'], 'modfile.Mod')
+  split modfile.Mod
+  call assert_equal('rapid', &filetype)
+  bwipe!
+  call delete('modfile.Mod')
+
+  " RAPID is not case sensitive, embedded spaces, sysmodule, 
+  " file starts with empty line(s).
+  call writefile(['', 'MODULE  rapidmödüle  (SYSMODULE,NOSTEPIN)'], 'modfile.MOD')
+  split modfile.MOD
+  call assert_equal('rapid', &filetype)
+  bwipe!
+
+  " Modula-2 MODULE not start of line
+  call writefile(['IMPLEMENTATION MODULE Module2Mod;'], 'modfile.MOD')
+  split modfile.MOD
+  call assert_equal('modula2', &filetype)
+  bwipe!
+
+  " Modula-2 with comment and empty lines prior MODULE
+  call writefile(['', '(* with',  ' comment *)', '', 'MODULE Module2Mod;'], 'modfile.MOD')
+  split modfile.MOD
+  call assert_equal('modula2', &filetype)
+  bwipe!
+  call delete('modfile.MOD')
+
+  " LambdaProlog module
+  call writefile(['module lpromod.'], 'modfile.mod')
+  split modfile.mod
+  call assert_equal('lprolog', &filetype)
+  bwipe!
+
+  " LambdaProlog with comment and empty lines prior module
+  call writefile(['', '% with',  '% comment', '', 'module lpromod.'], 'modfile.mod')
+  split modfile.mod
+  call assert_equal('lprolog', &filetype)
+  bwipe!
+  call delete('modfile.mod')
+
+  " go.mod
+  call writefile(['module example.com/M'], 'go.mod')
+  split go.mod
+  call assert_equal('gomod', &filetype)
+  bwipe!
+  call delete('go.mod')
+
+  filetype off
+endfunc
+
 func Test_patch_file()
   filetype on
 
@@ -1346,6 +1451,50 @@ func Test_pp_file()
   filetype off
 endfunc
 
+" Test dist#ft#FTprg()
+func Test_prg_file()
+  filetype on
+
+  " *.prg defaults to clipper
+  call writefile(['looks like clipper'], 'prgfile.prg')
+  split prgfile.prg
+  call assert_equal('clipper', &filetype)
+  bwipe!
+
+  " Users preference set by g:filetype_prg
+  let g:filetype_prg = 'eviews'
+  split prgfile.prg
+  call assert_equal('eviews', &filetype)
+  unlet g:filetype_prg
+  bwipe!
+
+  " RAPID header start with a line containing only "%%%", 
+  " but is not always present.
+  call writefile(['%%%'], 'prgfile.prg')
+  split prgfile.prg
+  call assert_equal('rapid', &filetype)
+  bwipe!
+  call delete('prgfile.prg')
+
+  " RAPID supports umlauts in module names, leading spaces,
+  " the .prg extension is not case sensitive.
+  call writefile(['  module ÜmlautModule'], 'prgfile.Prg')
+  split prgfile.Prg
+  call assert_equal('rapid', &filetype)
+  bwipe!
+  call delete('prgfile.Prg')
+
+  " RAPID is not case sensitive, embedded spaces, sysmodule, 
+  " file starts with empty line(s).
+  call writefile(['', 'MODULE  rapidmödüle  (SYSMODULE,NOSTEPIN)'], 'prgfile.PRG')
+  split prgfile.PRG
+  call assert_equal('rapid', &filetype)
+  bwipe!
+  call delete('prgfile.PRG')
+
+  filetype off
+endfunc
+
 func Test_src_file()
   filetype on
 
@@ -1379,6 +1528,42 @@ func Test_src_file()
   filetype off
 endfunc
 
+func Test_sys_file()
+  filetype on
+
+  " *.sys defaults to Batch file for MSDOS
+  call writefile(['looks like dos batch'], 'sysfile.sys')
+  split sysfile.sys
+  call assert_equal('bat', &filetype)
+  bwipe!
+
+  " RAPID header start with a line containing only "%%%", 
+  " but is not always present.
+  call writefile(['%%%'], 'sysfile.sys')
+  split sysfile.sys
+  call assert_equal('rapid', &filetype)
+  bwipe!
+  call delete('sysfile.sys')
+
+  " RAPID supports umlauts in module names, leading spaces,
+  " the .sys extension is not case sensitive.
+  call writefile(['  module ÜmlautModule'], 'sysfile.Sys')
+  split sysfile.Sys
+  call assert_equal('rapid', &filetype)
+  bwipe!
+  call delete('sysfile.Sys')
+
+  " RAPID is not case sensitive, embedded spaces, sysmodule, 
+  " file starts with empty line(s).
+  call writefile(['', 'MODULE  rapidmödüle  (SYSMODULE,NOSTEPIN)'], 'sysfile.SYS')
+  split sysfile.SYS
+  call assert_equal('rapid', &filetype)
+  bwipe!
+  call delete('sysfile.SYS')
+
+  filetype off
+endfunc
+
 func Test_tex_file()
   filetype on
 
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4720,
+/**/
     4719,
 /**/
     4718,