re-integrate runtime/ vim-patch:0 #938

Vim runtime files based on 7.4.384 / hg changeset 7090d7f160f7

Excluding:
  Amiga icons (*.info, icons/)
  doc/hangulin.txt
  tutor/
  spell/
  lang/ (only used for menu translations)
  macros/maze/, macros/hanoi/, macros/life/, macros/urm/
      These were used to test vi compatibility.
  termcap
      "Demonstration of a termcap file (for the Amiga and Archimedes)"

Helped-by: Rich Wareham <rjw57@cam.ac.uk>
Helped-by: John <john.schmidt.h@gmail.com>
Helped-by: Yann <yann@yann-salaun.com>
Helped-by: Christophe Badoit <c.badoit@lesiteimmo.com>
Helped-by: drasill <github@tof2k.com>
Helped-by: Tae Sandoval Murgan <taecilla@gmail.com>
Helped-by: Lowe Thiderman <lowe.thiderman@gmail.com>

runtime/syntax/synload.vim

@@ -0,0 +1,78 @@
+" Vim syntax support file
+" Maintainer:	Bram Moolenaar <Bram@vim.org>
+" Last Change:	2012 Sep 25
+
+" This file sets up for syntax highlighting.
+" It is loaded from "syntax.vim" and "manual.vim".
+" 1. Set the default highlight groups.
+" 2. Install Syntax autocommands for all the available syntax files.
+
+if !has("syntax")
+  finish
+endif
+
+" let others know that syntax has been switched on
+let syntax_on = 1
+
+" Set the default highlighting colors.  Use a color scheme if specified.
+if exists("colors_name")
+  exe "colors " . colors_name
+else
+  runtime! syntax/syncolor.vim
+endif
+
+" Line continuation is used here, remove 'C' from 'cpoptions'
+let s:cpo_save = &cpo
+set cpo&vim
+
+" First remove all old syntax autocommands.
+au! Syntax
+
+au Syntax *		call s:SynSet()
+
+fun! s:SynSet()
+  " clear syntax for :set syntax=OFF  and any syntax name that doesn't exist
+  syn clear
+  if exists("b:current_syntax")
+    unlet b:current_syntax
+  endif
+
+  let s = expand("<amatch>")
+  if s == "ON"
+    " :set syntax=ON
+    if &filetype == ""
+      echohl ErrorMsg
+      echo "filetype unknown"
+      echohl None
+    endif
+    let s = &filetype
+  elseif s == "OFF"
+    let s = ""
+  endif
+
+  if s != ""
+    " Load the syntax file(s).  When there are several, separated by dots,
+    " load each in sequence.
+    for name in split(s, '\.')
+      exe "runtime! syntax/" . name . ".vim syntax/" . name . "/*.vim"
+    endfor
+  endif
+endfun
+
+
+" Handle adding doxygen to other languages (C, C++, C#, IDL)
+au Syntax c,cpp,cs,idl,php
+	\ if (exists('b:load_doxygen_syntax') && b:load_doxygen_syntax)
+	\	|| (exists('g:load_doxygen_syntax') && g:load_doxygen_syntax)
+	\   | runtime! syntax/doxygen.vim
+	\ | endif
+
+
+" Source the user-specified syntax highlighting file
+if exists("mysyntaxfile") && filereadable(expand(mysyntaxfile))
+  execute "source " . mysyntaxfile
+endif
+
+" Restore 'cpoptions'
+let &cpo = s:cpo_save
+unlet s:cpo_save