xref: /vim-8.2.3635/runtime/syntax/bib.vim (revision 044b68f4)
1" Vim syntax file
2" Language:	BibTeX (bibliographic database format for (La)TeX)
3" Maintainer:	Bernd Feige <[email protected]>
4" Filenames:	*.bib
5" Last Change:	Aug 02, 2005
6
7" Thanks to those who pointed out problems with this file or supplied fixes!
8
9" Initialization
10" ==============
11" For version 5.x: Clear all syntax items
12" For version 6.x: Quit when a syntax file was already loaded
13if version < 600
14  syntax clear
15elseif exists("b:current_syntax")
16  finish
17endif
18
19" Ignore case
20syn case ignore
21
22" Keywords
23" ========
24syn keyword bibType contained	article book booklet conference inbook
25syn keyword bibType contained	incollection inproceedings manual
26syn keyword bibType contained	mastersthesis misc phdthesis
27syn keyword bibType contained	proceedings techreport unpublished
28syn keyword bibType contained	string
29
30syn keyword bibEntryKw contained	address annote author booktitle chapter
31syn keyword bibEntryKw contained	crossref edition editor howpublished
32syn keyword bibEntryKw contained	institution journal key month note
33syn keyword bibEntryKw contained	number organization pages publisher
34syn keyword bibEntryKw contained	school series title type volume year
35" Non-standard:
36syn keyword bibNSEntryKw contained	abstract isbn issn keywords url
37
38" Clusters
39" ========
40syn cluster bibVarContents	contains=bibUnescapedSpecial,bibBrace,bibParen
41" This cluster is empty but things can be added externally:
42"syn cluster bibCommentContents
43
44" Matches
45" =======
46syn match bibUnescapedSpecial contained /[^\\][%&]/hs=s+1
47syn match bibKey contained /\s*[^ \t}="]\+,/hs=s,he=e-1 nextgroup=bibField
48syn match bibVariable contained /[^{}," \t=]/
49syn region bibComment start=/./ end=/^\s*@/me=e-1 contains=@bibCommentContents nextgroup=bibEntry
50syn region bibQuote contained start=/"/ end=/"/ skip=/\(\\"\)/ contains=@bibVarContents
51syn region bibBrace contained start=/{/ end=/}/ skip=/\(\\[{}]\)/ contains=@bibVarContents
52syn region bibParen contained start=/(/ end=/)/ skip=/\(\\[()]\)/ contains=@bibVarContents
53syn region bibField contained start="\S\+\s*=\s*" end=/[}),]/me=e-1 contains=bibEntryKw,bibNSEntryKw,bibBrace,bibParen,bibQuote,bibVariable
54syn region bibEntryData contained start=/[{(]/ms=e+1 end=/[})]/me=e-1 contains=bibKey,bibField
55" Actually, 5.8 <= Vim < 6.0 would ignore the `fold' keyword anyway, but Vim<5.8 would produce
56" an error, so we explicitly distinguish versions with and without folding functionality:
57if version < 600
58  syn region bibEntry start=/@\S\+[{(]/ end=/^\s*[})]/ transparent contains=bibType,bibEntryData nextgroup=bibComment
59else
60  syn region bibEntry start=/@\S\+[{(]/ end=/^\s*[})]/ transparent fold contains=bibType,bibEntryData nextgroup=bibComment
61endif
62syn region bibComment2 start=/@Comment[{(]/ end=/^\s*@/me=e-1 contains=@bibCommentContents nextgroup=bibEntry
63
64" Synchronization
65" ===============
66syn sync match All grouphere bibEntry /^\s*@/
67syn sync maxlines=200
68syn sync minlines=50
69
70" Highlighting defaults
71" =====================
72" Define the default highlighting.
73" For version 5.7 and earlier: only when not done already
74" For version 5.8 and later: only when an item doesn't have highlighting yet
75if version >= 508 || !exists("did_bib_syn_inits")
76  if version < 508
77    let did_bib_syn_inits = 1
78    command -nargs=+ HiLink hi link <args>
79  else
80    command -nargs=+ HiLink hi def link <args>
81  endif
82  HiLink bibType	Identifier
83  HiLink bibEntryKw	Statement
84  HiLink bibNSEntryKw	PreProc
85  HiLink bibKey		Special
86  HiLink bibVariable	Constant
87  HiLink bibUnescapedSpecial	Error
88  HiLink bibComment	Comment
89  HiLink bibComment2	Comment
90  delcommand HiLink
91endif
92
93let b:current_syntax = "bib"
94