3 " Maintainer: Jean Privat <jean@pryen.org>
5 " This file is part of NIT ( http://www.nitlanguage.org ).
7 " Copyright 2009 Jean Privat <jean@pryen.org>
9 " Licensed under the Apache License, Version 2.0 (the "License");
10 " you may not use this file except in compliance with the License.
11 " You may obtain a copy of the License at
13 " http://www.apache.org/licenses/LICENSE-2.0
15 " Unless required by applicable law or agreed to in writing, software
16 " distributed under the License is distributed on an "AS IS" BASIS,
17 " WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 " See the License for the specific language governing permissions and
19 " limitations under the License.
21 if exists("b:current_syntax")
25 " Expression Substitution and Backslash Notation
26 syn match NITExprSubstError "{\|}" contained
27 syn match NITExprSubst "\\." contained
28 syn match NITExprSubst "{[^}]*}" contained
30 " Numbers and ASCII Codes
31 syn match NITNumber "\<\(\d\+\.\d\+\|\d\+\)\>"
34 syn match NITClass "\<\u\w*"
35 syn match NITAttribute "\<_\h\w*"
38 syn region NITString matchgroup=NITStringDelimit start="\"" end="\"" skip="\\\\\|\\\"" contains=NITExprSubst,NITExprSubstError
39 syn region NITString matchgroup=NITStringDelimit start="'" end="'" skip="\\\\\|\\'"
42 syn match NITLabel "\<label \h\w*"
45 syn match NITClosure "!\h\w*"
47 " Fallback highlight keywords
48 syn match NITNull "\<\(null\)\>"
49 syn match NITControl "\<\(init\|end\|not null\|not\|var\|do\|then\|else\|loop\)\>"
50 syn match NITKeyword "\<\(super\)\>"
52 syn match Error "\<end\>"
54 " Declarations, definitions and blocks
55 syn region NITModuleDecl matchgroup=NITDefine start="\<\(import\|module\|package\)\>\s*" matchgroup=NONE end="\ze\(\s\|:\|(\|$\)" oneline
56 syn region NITClassBlock matchgroup=NITDefine start="\<\(class\|enum\|universal\|interface\)\>" matchgroup=NITDefine end="\<end\>" contains=ALL fold
57 syn region NITFunctionDecl matchgroup=NITDefine start="\<fun\>\s*" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)" oneline
58 syn region NITTypeDecl matchgroup=NITDefine start="\<type\>\s*" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)" oneline contained containedin=NITClassBlock
59 syn region NITAttrDecl matchgroup=NITDefine start="\<var\>\s*\ze_" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)" oneline contained containedin=NITClassBlock
60 syn region NITInitDecl matchgroup=NITDefine start="\<init\>\s*" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)" oneline contained containedin=NITClassBlock
61 syn match NITDefine "\<\(super\)\ze\s\+[A-Z]" contained containedin=NITClassBlock
63 syn region NITStmtBlock matchgroup=NITControl start="\<\(do\|then\|else\|loop\)\>\ze\s*\(#\|$\)" matchgroup=NITControl end="^\s*\<\(end\|\zeelse\|\ze!\)\>" contains=ALLBUT,NITTypeDecl,NITAttrDecl,NITInitDecl
64 syn region NITStmtBlock matchgroup=NITControl start="\<\(do\|then\|else\|loop\)\>" matchgroup=NITControl end="\<end\>" oneline
66 if !exists("NIT_minlines")
69 exec "syn sync minlines=" . NIT_minlines
71 " Comments and Documentation
72 syn match NITSharpBang "\%^#!.*"
73 syn match NITComment "#.*" contains=NITTodo
76 syn keyword NITKeyword is abstract intern extern new
77 syn keyword NITDefine private public protected intrude readable writable redef
78 syn keyword NITControl if while for assert and or in as isa once break continue return abort
79 syn keyword NITClass nullable
80 syn keyword NITInclude special
81 syn keyword NITTodo FIXME NOTE TODO XXX contained
82 syn keyword NITBoolean true false
83 syn keyword NITSelf self
85 " Define the default highlighting.
86 hi def link NITDefine Define
87 hi def link NITModuleDecl Identifier
88 hi def link NITFunctionDecl Function
89 hi def link NITTypeDecl Function
90 hi def link NITAttrDecl Function
91 hi def link NITInitDecl Function
92 hi def link NITControl Statement
93 hi def link NITLabel PreProc
94 hi def link NITInclude Include
95 hi def link NITNumber Number
96 hi def link NITBoolean Boolean
97 hi def link NITNull Constant
98 hi def link NITSelf Constant
99 hi def link NITClass Type
100 hi def link NITAttribute Identifier
101 hi def link NITClosure Function
102 hi def link NITSharpBang PreProc
103 hi def link NITKeyword Keyword
105 hi def link NITString String
106 hi def link NITStringDelimit Delimiter
107 hi def link NITExprSubst Special
108 hi def link NITExprSubstError Error
110 hi def link NITComment Comment
111 hi def link NITTodo Todo
113 let b:current_syntax = "Nit"