" For version 6.x and 7.x: Quit when a syntax file was already loaded
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
syn case match
" Extension of Tex clusters {{{1
runtime syntax/tex.vim
unlet b:current_syntax
syn cluster texMatchGroup add=@rnoweb
syn cluster texMathMatchGroup add=rnowebSexpr
syn cluster texEnvGroup add=@rnoweb
syn cluster texFoldGroup add=@rnoweb
syn cluster texDocGroup add=@rnoweb
syn cluster texPartGroup add=@rnoweb
syn cluster texChapterGroup add=@rnoweb
syn cluster texSectionGroup add=@rnoweb
syn cluster texSubSectionGroup add=@rnoweb
syn cluster texSubSubSectionGroup add=@rnoweb
syn cluster texParaGroup add=@rnoweb
" Highlighting of R code using an existing r.vim syntax file if available {{{1
syn include @rnowebR syntax/r.vim
syn region rnowebChunk matchgroup=rnowebDelimiter start="^<<.*>>=" matchgroup=rnowebDelimiter end="^@" contains=@rnowebR,rnowebChunkReference,rnowebChunk fold keepend
syn match rnowebChunkReference "^<<.*>>$" contained
syn region rnowebSexpr matchgroup=Delimiter start="\\Sexpr{" matchgroup=Delimiter end="}" contains=@rnowebR
" Sweave options command {{{1
syn region rnowebSweaveopts matchgroup=Delimiter start="\\SweaveOpts{" matchgroup=Delimiter end="}"
" rnoweb Cluster {{{1
syn cluster rnoweb contains=rnowebChunk,rnowebChunkReference,rnowebDelimiter,rnowebSexpr,rnowebSweaveopts