also add vim/emacs edito configuration snippets

.dir-locals.el

@@ -0,0 +1,19 @@
+; Sets emacs variables based on mode.
+; A list of (major-mode . ((var1 . value1) (var2 . value2)))
+; Mode can be nil, which gives default values.
+
+; NOTE: If you update this file make sure to update .vimrc and .editorconfig,
+; too.
+
+((nil . ((indent-tabs-mode . nil)
+         (tab-width . 8)
+         (fill-column . 79)))
+ (c-mode . ((fill-column . 119)
+            (c-basic-offset . 8)
+            (eval . (c-set-offset 'substatement-open 0))
+            (eval . (c-set-offset 'statement-case-open 0))
+            (eval . (c-set-offset 'case-label 0))
+            (eval . (c-set-offset 'arglist-intro '++))
+            (eval . (c-set-offset 'arglist-close 0))))
+ (nxml-mode . ((nxml-child-indent . 2)
+               (fill-column . 119))))

.vimrc

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+" 'set exrc' in ~/.vimrc will read .vimrc from the current directory
+" Warning: Enabling exrc is dangerous! You can do nearly everything from a
+" vimrc configuration file, including write operations and shell execution.
+" You should consider setting 'set secure' as well, which is highly
+" recommended!
+
+" NOTE: If you update this file make sure to update .dir-locals.el and
+" .editorconfig, too.
+
+set tabstop=8
+set shiftwidth=8
+set expandtab
+set makeprg=GCC_COLORS=\ make
+set tw=79
+au BufRead,BufNewFile *.xml set tw=119 shiftwidth=2 smarttab
+au FileType c set tw=119