From 0cefdc304e81b24b9e321240fb4ada11c5346846 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karl=20Yngve=20Lerv=C3=A5g?= <karl.yngve+git@gmail.com>
Date: Thu, 20 Oct 2016 21:01:33 +0200
Subject: [PATCH] Fixed #541: Add b:vimtex.sources

This allows the desired type of customization.
---
 autoload/vimtex.vim | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/autoload/vimtex.vim b/autoload/vimtex.vim
index bf7ff4e..435a866 100644
--- a/autoload/vimtex.vim
+++ b/autoload/vimtex.vim
@@ -66,6 +66,11 @@ function! vimtex#init() " {{{1
   "
   call s:init_local_blob()
 
+  "
+  " Parse the document to set local options
+  "
+  call s:init_local_options()
+
   "
   " Finally we create the mappings
   "
@@ -468,6 +473,20 @@ function! s:init_local_blob() " {{{1
   endif
 endfunction
 
+" }}}1
+function! s:init_local_options() " {{{1
+  let b:vimtex.sources = []
+
+  for [l:file, l:lnum, l:line] in vimtex#parser#tex(b:vimtex.tex)
+    let l:cand = substitute(l:file, '\M' . b:vimtex.root, '', '')
+    if l:cand[0] ==# '/' | let l:cand = l:cand[1:] | endif
+
+    if index(b:vimtex.sources, l:cand) < 0
+      call add(b:vimtex.sources, l:cand)
+    endif
+  endfor
+endfunction
+
 " }}}1
 
 function! s:get_id(main) " {{{1