Add Go syntax

vim/syntax/go.vim

@@ -0,0 +1,112 @@
+" Vim syntax file
+" Language:     Go
+" Maintainer:   David Daub <david.daub@googlemail.com>
+" Last Change:  2009 Nov 15
+" Version:      0.1
+"
+" Early version. Took some (ok, most) stuff from existing syntax files like
+" c.vim or d.vim.
+"
+"
+" Todo:
+" - very much
+
+" Quit when a (custom) syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+
+" A bunch of useful Go keywords
+syn keyword  goStatement select
+syn keyword  goStatement defer
+syn keyword  goStatement fallthrough range type
+syn keyword  goStatement return
+
+syn keyword     goClause         import package
+syn keyword     goConditional    if else switch
+syn keyword     goBranch         goto break continue
+syn keyword     goLabel          case default
+syn keyword     goRepeat         for
+syn keyword     goType           struct const interface func
+syn keyword     goType           var map
+syn keyword     goType           uint8 uint16 uint32 uint64
+syn keyword     goType           int8 int16 int32 int64
+syn keyword     goType           float32 float64
+syn keyword     goType           float32 float64
+syn keyword     goType           byte
+syn keyword     goType           uint int float uintptr string
+
+syn keyword     goConcurrent     chan go
+
+syn keyword     goValue          nil
+syn keyword     goBoolean        true false
+
+syn keyword     goConstant       iota
+
+" Builtin functions
+syn keyword     goBif            len make new close closed cap map
+
+" According to the language specification it is not garanteed to stay in the
+" language. See http://golang.org/doc/go_spec.html#Bootstrapping
+syn keyword     goBif            print println panic panicln
+
+" Commants
+syn keyword     goTodo           contained TODO FIXME XXX
+syn match       goLineComment    "\/\/.*" contains=@Spell,goTodo
+syn match       goCommentSkip    "^[ \t]*\*\($\|[ \t]\+\)"
+syn region      goComment        start="/\*"  end="\*/" contains=@Spell,goTodo
+
+" Numerals
+syn case ignore
+"integer number, or floating point number without a dot and with "f".
+syn match       goNumbers        display transparent "\<\d\|\.\d" contains=goNumber,goFloat,goOctError,goOct
+syn match       goNumbersCom     display contained transparent "\<\d\|\.\d" contains=goNumber,goFloat,goOct
+syn match       goNumber         display contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
+
+" hex number
+syn match       goNumber         display contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
+
+" oct number
+syn match       goOct            display contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=goOctZero
+syn match       goOctZero        display contained "\<0"
+
+syn match       goFloat          display contained "\d\+\.\d*\(e[-+]\=\d\+\)\="
+syn match       goFloat          display contained "\d\+e[-+]\=\d\=\>"
+syn match       goFloat          display "\(\.[0-9_]\+\)\(e[-+]\=[0-9_]\+\)\=[fl]\=i\=\>"
+
+" Literals
+syn region      goString         start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell
+
+syn match       goSpecial        display contained "\\\(x\x\+\|\o\{1,3}\|.\|$\)"
+syn match       goCharacter      "L\='[^\\]'"
+syn match       goCharacter      "L'[^']*'" contains=goSpecial
+
+
+hi def link goStatement     Statement
+hi def link goClause        Preproc
+hi def link goConditional   Conditional
+hi def link goBranch        Conditional
+hi def link goLabel         Label
+hi def link goRepeat        Repeat
+hi def link goType          Type
+hi def link goConcurrent    Statement
+hi def link goValue         Constant
+hi def link goBoolean       Boolean
+hi def link goConstant      Constant
+hi def link goBif           Function
+hi def link goTodo          Todo
+hi def link goLineComment   goComment
+hi def link goComment       Comment
+hi def link goNumbers       Number
+hi def link goNumbersCom    Number
+hi def link goNumber        Number
+hi def link goFloat         Float
+hi def link goOct           Number
+hi def link goOctZero       Number
+hi def link goString        String
+hi def link goSpecial       Special
+hi def link goCharacter     Character
+
+
+let b:current_syntax = "go"