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 NITExprSubst "\\." contained
27 syn match NITExprSubst "{[^}]*}" contained
29 " Numbers and ASCII Codes
30 syn match NITNumber "\<\(\d\+\.\d\+\|\d\+\)\>"
33 syn match NITClass "\u\w*"
34 syn match NITAttribute "\<_\h\w*"
37 syn region NITString matchgroup=NITStringDelimit start="\"" end="\"" skip="\\\\\|\\\"" contains=NITExprSubst
38 syn region NITString matchgroup=NITStringDelimit start="'" end="'" skip="\\\\\|\\'"
41 " Fallback highlight keywords
42 syn match NITBoolean "\<\(null\)\>"
43 syn match NITControl "\<\(init\|end\|not null\|not\|var\|do\|then\|else\|with\)\>"
45 syn match Error "\<end\>"
47 " Declarations, definitions and blocks
48 syn region NITPackageDecl matchgroup=NITDefine start="\<\(import\|package\)\>\s*" matchgroup=NONE end="\ze\(\s\|:\|(\|$\)" oneline
49 syn region NITClassBlock matchgroup=NITDefine start="\<\(class\|universal\|interface\)\>" matchgroup=NITDefine end="\<end\>" contains=ALL fold
50 syn region NITFunctionDecl matchgroup=NITDefine start="\<\(meth\|fun\)\>\s*" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)" oneline
51 syn region NITTypeDecl matchgroup=NITDefine start="\<type\>\s*" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)" oneline contained containedin=NITClassBlock
52 syn region NITAttrDecl matchgroup=NITDefine start="\<\(var\|attr\)\>\s*\ze_" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)" oneline contained containedin=NITClassBlock
53 syn region NITInitDecl matchgroup=NITDefine start="\<init\>\s*" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)" oneline contained containedin=NITClassBlock
55 syn region NITStmtBlock matchgroup=NITControl start="\<\(do\|then\|else\)\>\ze\s*\(#\|$\)" matchgroup=NITControl end="^\s*\<\(end\|\zeelse\|with\)\>" contains=ALLBUT,NITTypeDecl,NITAttrDecl,NITInitDecl
56 syn region NITStmtBlock matchgroup=NITControl start="\<\(do\|then\|else\)\>" matchgroup=NITControl end="\<end\>" oneline
58 if !exists("NIT_minlines")
61 exec "syn sync minlines=" . NIT_minlines
63 " Comments and Documentation
64 syn match NITSharpBang "\%^#!.*"
65 syn match NITComment "#.*" contains=NITTodo
68 syn keyword NITKeyword is abstract intern extern
69 syn keyword NITDefine private public protected intrude readable writable redef
70 syn keyword NITControl if while for assert
71 syn keyword NITControl and or in as isa
72 syn keyword NITControl break continue return label abort
73 syn keyword NITKeyword super new nullable
74 syn keyword NITInclude special
75 syn keyword NITTodo FIXME NOTE TODO XXX contained
76 syn keyword NITBoolean true false self
78 " Define the default highlighting.
79 hi def link NITDefine Define
80 hi def link NITPackageDecl Identifier
81 hi def link NITFunctionDecl Function
82 hi def link NITTypeDecl Function
83 hi def link NITAttrDecl Function
84 hi def link NITInitDecl Function
85 hi def link NITControl Statement
86 hi def link NITInclude Include
87 hi def link NITNumber Number
88 hi def link NITBoolean Boolean
89 hi def link NITClass Type
90 hi def link NITAttribute Identifier
91 hi def link NITSharpBang PreProc
92 hi def link NITKeyword Keyword
94 hi def link NITString String
95 hi def link NITStringDelimit Delimiter
96 hi def link NITExprSubst Special
98 hi def link NITComment Comment
99 hi def link NITTodo Todo
101 let b:current_syntax = "Nit"