" syntax file for Protocol Buffers - Google's data interchange format
"
" Copyright 2008 Google Inc.  All rights reserved.
"
" Permission is hereby granted, free of charge, to any person obtaining a copy
" of this software and associated documentation files (the "Software"), to deal
" in the Software without restriction, including without limitation the rights
" to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
" copies of the Software, and to permit persons to whom the Software is
" furnished to do so, subject to the following conditions:
"
" The above copyright notice and this permission notice shall be included in
" all copies or substantial portions of the Software.
"
" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
" AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
" LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
" OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
" THE SOFTWARE.
"
" http://code.google.com/p/protobuf/

if version < 600
  syntax clear
elseif exists("b:current_syntax")
  finish
endif

syn case match

syn keyword protoTodo       contained TODO FIXME XXX
syn cluster protoCommentGrp contains=protoTodo

syn keyword protoSyntax     syntax import option
syn keyword protoStructure  package message group
syn keyword protoRepeat     optional required repeated
syn keyword protoDefault    default
syn keyword protoExtend     extend extensions to max
syn keyword protoRPC        service rpc returns

syn keyword protoType      int32 int64 uint32 uint64 sint32 sint64
syn keyword protoType      fixed32 fixed64 sfixed32 sfixed64
syn keyword protoType      float double bool string bytes
syn keyword protoTypedef   enum
syn keyword protoBool      true false

syn match   protoInt     /-\?\<\d\+\>/
syn match   protoInt     /\<0[xX]\x+\>/
syn match   protoFloat   /\<-\?\d*\(\.\d*\)\?/
syn region  protoComment start="\/\*" end="\*\/" contains=@protoCommentGrp
syn region  protoComment start="//" skip="\\$" end="$" keepend contains=@protoCommentGrp
syn region  protoString  start=/"/ skip=/\\./ end=/"/
syn region  protoString  start=/'/ skip=/\\./ end=/'/

hi def link protoTodo         Todo

hi def link protoSyntax       Include
hi def link protoStructure    Structure
hi def link protoRepeat       Repeat
hi def link protoDefault      Keyword
hi def link protoExtend       Keyword
hi def link protoRPC          Keyword
hi def link protoType         Type
hi def link protoTypedef      Typedef
hi def link protoBool         Boolean

hi def link protoInt          Number
hi def link protoFloat        Float
hi def link protoComment      Comment
hi def link protoString       String

let b:current_syntax = "proto"