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" Vim syntax file
" Language: R noweb Files
" Maintainer: Johannes Ranke <jranke@uni-bremen.de>
" Last Change: 2006 Apr 25
" Version: 0.6
" SVN: $Id$
" Remarks: - This file is inspired by the proposal of
" Fernando Henrique Ferraz Pereira da Rosa <feferraz@ime.usp.br>
" http://www.ime.usp.br/~feferraz/en/sweavevim.html
" - It extends some clusters from syntax/tex.vim (version 33,
" March 06 2006) and therefore depends on some contents
" of this file
"
" Version Clears: {{{1
" For version 5.x: Clear all syntax items
" 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 regions {{{1
runtime syntax/tex.vim
unlet b:current_syntax
syn cluster texDocGroup contains=texPartZone,@texPartGroup,@rnoweb
syn cluster texPartGroup contains=texChapterZone,texSectionZone,texParaZone,@rnoweb
syn cluster texChapterGroup contains=texSectionZone,texParaZone,@rnoweb
syn cluster texSectionGroup contains=texSubSectionZone,texParaZone,@rnoweb
syn cluster texSubSectionGroup contains=texSubSubSectionZone,texParaZone,@rnoweb
syn cluster texSubSubSectionGroup contains=texParaZone,@rnoweb
syn cluster texParaGroup contains=texSubParaZone,@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 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
" Highlighting {{{1
hi def link rnowebDelimiter Delimiter
hi def link rnowebSweaveOpts Statement
hi def link rnowebChunkReference Delimiter
let b:current_syntax = "rnoweb"
" vim: foldmethod=marker:
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