Add support for docker

Author: nikoskoukis-slamcore

README.md

@@ -58,6 +58,7 @@ C#           | :x:                | :x:
 C++          | :heavy_check_mark: | :heavy_check_mark:
 CMake        | :heavy_check_mark: | :heavy_check_mark:
 D            | :x:                | :x:
+Dockerfile   | :heavy_check_mark: | :heavy_check_mark:
 Fish-Shell   | :heavy_check_mark: | :heavy_check_mark:
 Fortran      | :heavy_check_mark: | :heavy_check_mark:
 Go           | :x:                | :x:

ftplugin/Dockerfile.vim

@@ -0,0 +1,18 @@
+let g:path = fnamemodify(resolve(expand('<sfile>:p')), ':h')
+
+function! s:DebugStringFun(desc, ...)
+    execute 'source ' . g:path . '/common/sh_like.vim'
+    let b:res = ""
+    if len(a:000) ==# 0
+        let b:res = DebugStringFunShellBase(a:desc)
+    else
+        let b:res = DebugStringFunShellBase(a:desc, a:1)
+    endif
+    return "RUN " . b:res
+endfunc
+
+command! -buffer -nargs=0 AddDebugString
+            \ put=s:DebugStringFun(g:DebugstringPrefixStr() . g:debugStringCounter)
+command! -buffer -nargs=1 AddDebugStringExpr
+            \ put=s:DebugStringFun(<args> . ': ', <args>)
+

test/basic.vader

@@ -66,5 +66,7 @@ Execute (Arduino):
   :set filetype=arduino
 Execute (Makefile):
   :set filetype=make
+Execute (Dockerfile):
+  :set filetype=Dockerfile
 
 ================================================================================

test/ft/a.Dockerfile

@@ -0,0 +1,3 @@
+RUN echo "[[Vader-workbench]:$1$] DEBUGGING STRING ==> $2$"
+RUN echo "a**2 + b**2:  ${a**2 + b**2}"
+