From f57d795e4a8ccc1d24bab0e0a1f2c985e9e04992 Mon Sep 17 00:00:00 2001
From: raimon <raimon49@hotmail.com>
Date: Tue, 24 Nov 2015 23:43:28 +0900
Subject: [PATCH] Use regular expression at filetype detection

---
 ftdetect/requirements.vim | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/ftdetect/requirements.vim b/ftdetect/requirements.vim
index 431b642..e9e95ae 100644
--- a/ftdetect/requirements.vim
+++ b/ftdetect/requirements.vim
@@ -1,4 +1,17 @@
-au BufNewFile,BufRead *requirements.{txt,in} set ft=requirements
-au BufNewFile,BufRead *requirements/*.{txt,in} set ft=requirements
+function! s:isRequirementsFile()
+    let l:filename = expand("%:p")
+
+    if l:filename =~# '\v.*requirements\.(txt|in)'
+        return 1
+    endif
+
+    if l:filename =~# '\v.requirements/.*\.(txt|in)'
+        return 1
+    endif
+
+    return 0
+endfunction
+
+au BufNewFile,BufRead *.{txt,in} if s:isRequirementsFile() | set ft=requirements
 
 " vim: et sw=4 ts=4 sts=4: