vim-patch:8.2.4746: supercollider filetype not recognized (#18102)

Problem:    Supercollider filetype not recognized.
Solution:   Match file extentions and check file contents to detect
            supercollider. (closes vim/vim#10142)
https://github.com/vim/vim/commit/8cac20ed42b7b7fc9c6b54e3055ca1047f50b8ca

1 files changed, 22 insertions, 0 deletions

diff --git a/runtime/autoload/dist/ft.vim b/runtime/autoload/dist/ft.vim
index 0063e9da0b..866196a7df 100644
--- a/runtime/autoload/dist/ft.vim
+++ b/runtime/autoload/dist/ft.vim
@@ -773,6 +773,28 @@ func dist#ft#SQL()
   endif
 endfunc
 
+" This function checks the first 25 lines of file extension "sc" to resolve
+" detection between scala and SuperCollider
+func dist#ft#FTsc()
+  for lnum in range(1, min([line("$"), 25]))
+    if getline(lnum) =~# '[A-Za-z0-9]*\s:\s[A-Za-z0-9]\|var\s<\|classvar\s<\|\^this.*\||\w*|\|+\s\w*\s{\|\*ar\s'
+      setf supercollider
+      return
+    endif
+  endfor
+  setf scala
+endfunc
+
+" This function checks the first line of file extension "scd" to resolve
+" detection between scdoc and SuperCollider
+func dist#ft#FTscd()
+  if getline(1) =~# '\%^\S\+(\d[0-9A-Za-z]*)\%(\s\+\"[^"]*\"\%(\s\+\"[^"]*\"\)\=\)\=$'
+    setf scdoc
+  else
+    setf supercollider
+  endif
+endfunc
+
 " If the file has an extension of 't' and is in a directory 't' or 'xt' then
 " it is almost certainly a Perl test file.
 " If the first line starts with '#' and contains 'perl' it's probably a Perl