Added basic syntax file for editing sls files (yaml + jinja)

README

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+Vim files for working on Salt files.
+
+syntax/sls.vim
+    A syntax file for editing yaml + jinja sls files.

syntax/sls.vim

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+" Vim syntax file
+" Language: Salt States template
+" Maintainer: Seth House <[email protected]>
+" Last Change: 2011 Dec 05
+"
+" You probably want this in your .vimrc for now:
+" au BufNewFile,BufRead *.sls set ft=sls
+
+if exists("b:current_syntax")
+  finish
+endif
+
+if !exists("main_syntax")
+  let main_syntax = 'yaml'
+endif
+
+let b:current_syntax = ''
+unlet b:current_syntax
+runtime! syntax/yaml.vim
+
+let b:current_syntax = ''
+unlet b:current_syntax
+syntax include @Yaml syntax/yaml.vim
+
+let b:current_syntax = ''
+unlet b:current_syntax
+syntax include @Jinja syntax/django.vim
+
+syn cluster djangoBlocks add=djangoTagBlock,djangoVarBlock,djangoComment,djangoComBlock
+syn region djangoTagBlock start="{%" end="%}" contains=djangoStatement,djangoFilter,djangoArgument,djangoTagError display containedin=ALLBUT,@djangoBlocks
+syn region djangoVarBlock start="{{" end="}}" contains=djangoFilter,djangoArgument,djangoVarError display containedin=ALLBUT,@djangoBlocks
+syn region djangoComBlock start="{#" end="#}" contains=djangoTodo containedin=ALLBUT,@djangoBlocks
+
+let b:current_syntax = "sls"