xref: /vim-8.2.3635/runtime/syntax/bib.vim (revision 17fb0e89)
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:	Mar 23, 2011
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27syn keyword bibType contained	proceedings techreport unpublished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" AMS mref http://www.ams.org/mref
38syn keyword bibNSEntryKw contained	mrclass mrnumber mrreviewer fjournal coden
39
40" Clusters
41" ========
42syn cluster bibVarContents	contains=bibUnescapedSpecial,bibBrace,bibParen
43" This cluster is empty but things can be added externally:
44"syn cluster bibCommentContents
45
46" Matches
47" =======
48syn match bibUnescapedSpecial contained /[^\\][%&]/hs=s+1
49syn match bibKey contained /\s*[^ \t}="]\+,/hs=s,he=e-1 nextgroup=bibField
50syn match bibVariable contained /[^{}," \t=]/
51syn region bibComment start=/./ end=/^\s*@/me=e-1 contains=@bibCommentContents nextgroup=bibEntry
52syn region bibQuote contained start=/"/ end=/"/ skip=/\(\\"\)/ contains=@bibVarContents
53syn region bibBrace contained start=/{/ end=/}/ skip=/\(\\[{}]\)/ contains=@bibVarContents
54syn region bibParen contained start=/(/ end=/)/ skip=/\(\\[()]\)/ contains=@bibVarContents
55syn region bibField contained start="\S\+\s*=\s*" end=/[}),]/me=e-1 contains=bibEntryKw,bibNSEntryKw,bibBrace,bibParen,bibQuote,bibVariable
56syn region bibEntryData contained start=/[{(]/ms=e+1 end=/[})]/me=e-1 contains=bibKey,bibField
57" Actually, 5.8 <= Vim < 6.0 would ignore the `fold' keyword anyway, but Vim<5.8 would produce
58" an error, so we explicitly distinguish versions with and without folding functionality:
59if version < 600
60  syn region bibEntry start=/@\S\+\s*[{(]/ end=/^\s*[})]/ transparent contains=bibType,bibEntryData nextgroup=bibComment
61else
62  syn region bibEntry start=/@\S\+\s*[{(]/ end=/^\s*[})]/ transparent fold contains=bibType,bibEntryData nextgroup=bibComment
63endif
64syn region bibComment2 start=/@Comment\s*[{(]/ end=/^\s*[})]/me=e-1 contains=@bibCommentContents nextgroup=bibEntry
65
66" Synchronization
67" ===============
68syn sync match All grouphere bibEntry /^\s*@/
69syn sync maxlines=200
70syn sync minlines=50
71
72" Highlighting defaults
73" =====================
74" Define the default highlighting.
75" For version 5.7 and earlier: only when not done already
76" For version 5.8 and later: only when an item doesn't have highlighting yet
77if version >= 508 || !exists("did_bib_syn_inits")
78  if version < 508
79    let did_bib_syn_inits = 1
80    command -nargs=+ HiLink hi link <args>
81  else
82    command -nargs=+ HiLink hi def link <args>
83  endif
84  HiLink bibType	Identifier
85  HiLink bibEntryKw	Statement
86  HiLink bibNSEntryKw	PreProc
87  HiLink bibKey		Special
88  HiLink bibVariable	Constant
89  HiLink bibUnescapedSpecial	Error
90  HiLink bibComment	Comment
91  HiLink bibComment2	Comment
92  delcommand HiLink
93endif
94
95let b:current_syntax = "bib"
96