1" Vim syntax file
2" Language:    R noweb Files
3" Maintainer:  Johannes Ranke <jranke@uni-bremen.de>
4" Last Change: 2009 May 05
5" Version:     0.9
6" SVN:	       $Id: rnoweb.vim 84 2009-05-03 19:52:47Z ranke $
7" Remarks:     - This file is inspired by the proposal of 
8"				 Fernando Henrique Ferraz Pereira da Rosa <feferraz@ime.usp.br>
9"			     http://www.ime.usp.br/~feferraz/en/sweavevim.html
10"
11
12" Version Clears: {{{1
13" For version 5.x: Clear all syntax items
14" For version 6.x and 7.x: Quit when a syntax file was already loaded
15if version < 600 
16  syntax clear
17elseif exists("b:current_syntax")
18  finish
19endif 
20
21syn case match
22
23" Extension of Tex clusters {{{1
24runtime syntax/tex.vim
25unlet b:current_syntax
26
27syn cluster texMatchGroup add=@rnoweb
28syn cluster texMathMatchGroup add=rnowebSexpr
29syn cluster texEnvGroup add=@rnoweb
30syn cluster texFoldGroup add=@rnoweb
31syn cluster texDocGroup		add=@rnoweb
32syn cluster texPartGroup		add=@rnoweb
33syn cluster texChapterGroup		add=@rnoweb
34syn cluster texSectionGroup		add=@rnoweb
35syn cluster texSubSectionGroup		add=@rnoweb
36syn cluster texSubSubSectionGroup	add=@rnoweb
37syn cluster texParaGroup		add=@rnoweb
38
39" Highlighting of R code using an existing r.vim syntax file if available {{{1
40syn include @rnowebR syntax/r.vim
41syn region rnowebChunk matchgroup=rnowebDelimiter start="^<<.*>>=" matchgroup=rnowebDelimiter end="^@" contains=@rnowebR,rnowebChunkReference,rnowebChunk fold keepend
42syn match rnowebChunkReference "^<<.*>>$" contained
43syn region rnowebSexpr matchgroup=Delimiter start="\\Sexpr{" matchgroup=Delimiter end="}" contains=@rnowebR
44
45" Sweave options command {{{1
46syn region rnowebSweaveopts matchgroup=Delimiter start="\\SweaveOpts{" matchgroup=Delimiter end="}"
47
48" rnoweb Cluster {{{1
49syn cluster rnoweb contains=rnowebChunk,rnowebChunkReference,rnowebDelimiter,rnowebSexpr,rnowebSweaveopts
50
51" Highlighting {{{1
52hi def link rnowebDelimiter	Delimiter
53hi def link rnowebSweaveOpts Statement
54hi def link rnowebChunkReference Delimiter
55
56let   b:current_syntax = "rnoweb"
57" vim: foldmethod=marker:
58