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" Vim syntax file
" Language: BibTeX (bibliographic database format for (La)TeX)
" Maintainer: Bernd Feige <Bernd.Feige@gmx.net>
" Filenames: *.bib
" Last Change: 2017 Sep 29
" Thanks to those who pointed out problems with this file or supplied fixes!
" Initialization
" ==============
" quit when a syntax file was already loaded
if exists("b:current_syntax")
finish
endif
let s:cpo_save = &cpo
set cpo&vim
" Ignore case
syn case ignore
" Keywords
" ========
syn keyword bibType contained article book booklet conference inbook
syn keyword bibType contained incollection inproceedings manual
syn keyword bibType contained mastersthesis misc phdthesis
syn keyword bibType contained proceedings techreport unpublished
syn keyword bibType contained string preamble
syn keyword bibEntryKw contained address annote author booktitle chapter
syn keyword bibEntryKw contained crossref edition editor howpublished
syn keyword bibEntryKw contained institution journal key month note
syn keyword bibEntryKw contained number organization pages publisher
syn keyword bibEntryKw contained school series title type volume year
" biblatex keywords, cf. http://mirrors.ctan.org/macros/latex/contrib/biblatex/doc/biblatex.pdf
syn keyword bibType contained mvbook bookinbook suppbook collection mvcollection suppcollection
syn keyword bibType contained online patent periodical suppperiodical mvproceedings reference
syn keyword bibType contained mvreference inreference report set thesis xdata customa customb
syn keyword bibType contained customc customd custome customf electronic www artwork audio bibnote
syn keyword bibType contained commentary image jurisdiction legislation legal letter movie music
syn keyword bibType contained performance review software standard video
syn keyword bibEntryKw contained abstract isbn issn keywords url
syn keyword bibEntryKw contained addendum afterwordannotation annotation annotator authortype
syn keyword bibEntryKw contained bookauthor bookpagination booksubtitle booktitleaddon
syn keyword bibEntryKw contained commentator date doi editora editorb editorc editortype
syn keyword bibEntryKw contained editoratype editorbtype editorctype eid entrysubtype
syn keyword bibEntryKw contained eprint eprintclass eprinttype eventdate eventtitle
syn keyword bibEntryKw contained eventtitleaddon file foreword holder indextitle
syn keyword bibEntryKw contained introduction isan ismn isrn issue issuesubtitle
syn keyword bibEntryKw contained issuetitle iswc journalsubtitle journaltitle label
syn keyword bibEntryKw contained language library location mainsubtitle maintitle
syn keyword bibEntryKw contained maintitleaddon nameaddon origdate origlanguage
syn keyword bibEntryKw contained origlocation origpublisher origtitle pagetotal
syn keyword bibEntryKw contained pagination part pubstate reprinttitle shortauthor
syn keyword bibEntryKw contained shorteditor shorthand shorthandintro shortjournal
syn keyword bibEntryKw contained shortseries shorttitle subtitle titleaddon translator
syn keyword bibEntryKw contained urldate venue version volumes entryset execute gender
syn keyword bibEntryKw contained langid langidopts ids indexsorttitle options presort
syn keyword bibEntryKw contained related relatedoptions relatedtype relatedstring
syn keyword bibEntryKw contained sortkey sortname sortshorthand sorttitle sortyear xdata
syn keyword bibEntryKw contained xref namea nameb namec nameatype namebtype namectype
syn keyword bibEntryKw contained lista listb listc listd liste listf usera userb userc
syn keyword bibEntryKw contained userd usere userf verba verbb verbc archiveprefix pdf
syn keyword bibEntryKw contained primaryclass
" Non-standard:
" AMS mref http://www.ams.org/mref
syn keyword bibNSEntryKw contained mrclass mrnumber mrreviewer fjournal coden
" Clusters
" ========
syn cluster bibVarContents contains=bibUnescapedSpecial,bibBrace,bibParen,bibMath
" This cluster is empty but things can be added externally:
"syn cluster bibCommentContents
" Matches
" =======
syn match bibUnescapedSpecial contained /[^\\][%&]/hs=s+1
syn match bibKey contained /\s*[^ \t}="]\+,/hs=s,he=e-1 nextgroup=bibField
syn match bibVariable contained /[^{}," \t=]/
syn region bibComment start=/./ end=/^\s*@/me=e-1 contains=@bibCommentContents nextgroup=bibEntry
syn region bibMath contained start=/\(\\\)\@<!\$/ end=/\$/ skip=/\(\\\$\)/
syn region bibQuote contained start=/"/ end=/"/ skip=/\(\\"\)/ contains=@bibVarContents
syn region bibBrace contained start=/{/ end=/}/ skip=/\(\\[{}]\)/ contains=@bibVarContents
syn region bibParen contained start=/(/ end=/)/ skip=/\(\\[()]\)/ contains=@bibVarContents
syn region bibField contained start="\S\+\s*=\s*" end=/[}),]/me=e-1 contains=bibEntryKw,bibNSEntryKw,bibBrace,bibParen,bibQuote,bibVariable
syn region bibEntryData contained start=/[{(]/ms=e+1 end=/[})]/me=e-1 contains=bibKey,bibField,bibComment3
" Actually, 5.8 <= Vim < 6.0 would ignore the `fold' keyword anyway, but Vim<5.8 would produce
" an error, so we explicitly distinguish versions with and without folding functionality:
syn region bibEntry start=/@\S\+\s*[{(]/ end=/^\s*[})]/ transparent fold contains=bibType,bibEntryData nextgroup=bibComment
syn region bibComment2 start=/@Comment\s*[{(]/ end=/^\s*[})]/me=e-1 contains=@bibCommentContents nextgroup=bibEntry
" biblatex style comments inside a bibEntry
syn match bibComment3 "%.*"
" Synchronization
" ===============
syn sync match All grouphere bibEntry /^\s*@/
syn sync maxlines=200
syn sync minlines=50
" Highlighting defaults
" =====================
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
hi def link bibType Identifier
hi def link bibEntryKw Statement
hi def link bibNSEntryKw PreProc
hi def link bibKey Special
hi def link bibVariable Constant
hi def link bibUnescapedSpecial Error
hi def link bibComment Comment
hi def link bibComment2 Comment
hi def link bibComment3 Comment
let b:current_syntax = "bib"
let &cpo = s:cpo_save
unlet s:cpo_save