Adding syntax highlighting for protobuf files

janus/protobuf/syntax/proto.vim

@@ -0,0 +1,91 @@
+" Protocol Buffers - Google's data interchange format
+" Copyright 2008 Google Inc.
+"
+" Licensed under the Apache License, Version 2.0 (the "License");
+" you may not use this file except in compliance with the License.
+" You may obtain a copy of the License at
+"
+"      http:"www.apache.org/licenses/LICENSE-2.0
+"
+" Unless required by applicable law or agreed to in writing, software
+" distributed under the License is distributed on an "AS IS" BASIS,
+" WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+" See the License for the specific language governing permissions and
+" limitations under the License.
+
+" This is the Vim syntax file for Google Protocol Buffers.
+"
+" Usage:
+"
+" 1. cp proto.vim ~/.vim/syntax/
+" 2. Add the following to ~/.vimrc:
+"
+" augroup filetype
+"   au! BufRead,BufNewFile *.proto setfiletype proto
+" augroup end
+"
+" Or just create a new file called ~/.vim/ftdetect/proto.vim with the
+" previous lines on it.
+
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+syn case match
+
+syn keyword pbTodo       contained TODO FIXME XXX
+syn cluster pbCommentGrp contains=pbTodo
+
+syn keyword pbSyntax     syntax import option
+syn keyword pbStructure  package message group
+syn keyword pbRepeat     optional required repeated
+syn keyword pbDefault    default
+syn keyword pbExtend     extend extensions to max
+syn keyword pbRPC        service rpc returns
+
+syn keyword pbType      int32 int64 uint32 uint64 sint32 sint64
+syn keyword pbType      fixed32 fixed64 sfixed32 sfixed64
+syn keyword pbType      float double bool string bytes
+syn keyword pbTypedef   enum
+syn keyword pbBool      true false
+
+syn match   pbInt     /-\?\<\d\+\>/
+syn match   pbInt     /\<0[xX]\x+\>/
+syn match   pbFloat   /\<-\?\d*\(\.\d*\)\?/
+" TODO: .proto also supports C-style block comments;
+" see /usr/share/vim/vim70/syntax/c.vim for how it's done.
+syn region  pbComment start="//" skip="\\$" end="$" keepend contains=@pbCommentGrp
+syn region  pbString  start=/"/ skip=/\\"/ end=/"/
+syn region  pbString  start=/'/ skip=/\\'/ end=/'/
+
+if version >= 508 || !exists("did_proto_syn_inits")
+  if version < 508
+    let did_proto_syn_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink pbTodo         Todo
+
+  HiLink pbSyntax       Include
+  HiLink pbStructure    Structure
+  HiLink pbRepeat       Repeat
+  HiLink pbDefault      Keyword
+  HiLink pbExtend       Keyword
+  HiLink pbRPC          Keyword
+  HiLink pbType         Type
+  HiLink pbTypedef      Typedef
+  HiLink pbBool         Boolean
+
+  HiLink pbInt          Number
+  HiLink pbFloat        Float
+  HiLink pbComment      Comment
+  HiLink pbString       String
+
+  delcommand HiLink
+endif
+
+let b:current_syntax = "proto"

vimrc.after

@@ -4,6 +4,8 @@ set tabstop=4
 set shiftwidth=4
 set softtabstop=4
 
+autocmd BufNewFile,BufRead *.proto setf proto
+
 " Set the indent to 2 when working with ruby and markup stuff
 autocmd BufNewFile,BufRead *.feature,*.rb,*.ru,*.xml,*.html,*.htm,Gemfile,Rakefile,Procfile set shiftwidth=2
     \| set tabstop=2