124 lines
4.3 KiB
VimL
124 lines
4.3 KiB
VimL
" markdown Text with R statements
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" Language: markdown with R code chunks
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" Homepage: https://github.com/jalvesaq/R-Vim-runtime
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" Last Change: Sat Jan 28, 2017 10:06PM
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"
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" CONFIGURATION:
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" To highlight chunk headers as R code, put in your vimrc (e.g. .config/nvim/init.vim):
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" let rmd_syn_hl_chunk = 1
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"
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" For highlighting pandoc extensions to markdown like citations and TeX and
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" many other advanced features like folding of markdown sections, it is
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" recommended to install the vim-pandoc filetype plugin as well as the
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" vim-pandoc-syntax filetype plugin from https://github.com/vim-pandoc.
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"
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" TODO:
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" - Provide highlighting for rmarkdown parameters in yaml header
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if exists("b:current_syntax")
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finish
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endif
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" load all of pandoc info, e.g. from
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" https://github.com/vim-pandoc/vim-pandoc-syntax
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runtime syntax/pandoc.vim
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if exists("b:current_syntax")
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let rmdIsPandoc = 1
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unlet b:current_syntax
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else
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let rmdIsPandoc = 0
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runtime syntax/markdown.vim
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if exists("b:current_syntax")
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unlet b:current_syntax
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endif
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" load all of the yaml syntax highlighting rules into @yaml
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syntax include @yaml syntax/yaml.vim
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if exists("b:current_syntax")
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unlet b:current_syntax
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endif
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" highlight yaml block commonly used for front matter
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syntax region rmdYamlBlock matchgroup=rmdYamlBlockDelim start="^---" matchgroup=rmdYamlBlockDelim end="^---" contains=@yaml keepend fold
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endif
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if !exists("g:rmd_syn_langs")
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let g:rmd_syn_langs = ["r"]
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else
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let s:hasr = 0
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for s:lng in g:rmd_syn_langs
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if s:lng == "r"
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let s:hasr = 1
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endif
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endfor
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if s:hasr == 0
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let g:rmd_syn_langs += ["r"]
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endif
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endif
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for s:lng in g:rmd_syn_langs
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exe 'syntax include @' . toupper(s:lng) . ' syntax/'. s:lng . '.vim'
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if exists("b:current_syntax")
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unlet b:current_syntax
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endif
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exe 'syntax region rmd' . toupper(s:lng) . 'Chunk start="^[ \t]*``` *{\(' . s:lng . '\|r.*engine\s*=\s*["' . "']" . s:lng . "['" . '"]\).*}$" end="^[ \t]*```$" contains=@' . toupper(s:lng) . ',rmd' . toupper(s:lng) . 'ChunkDelim keepend fold'
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if exists("g:rmd_syn_hl_chunk") && s:lng == "r"
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" highlight R code inside chunk header
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syntax match rmdRChunkDelim "^[ \t]*```{r" contained
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syntax match rmdRChunkDelim "}$" contained
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else
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exe 'syntax match rmd' . toupper(s:lng) . 'ChunkDelim "^[ \t]*```{\(' . s:lng . '\|r.*engine\s*=\s*["' . "']" . s:lng . "['" . '"]\).*}$" contained'
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endif
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exe 'syntax match rmd' . toupper(s:lng) . 'ChunkDelim "^[ \t]*```$" contained'
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endfor
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" also match and syntax highlight in-line R code
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syntax region rmdrInline matchgroup=rmdInlineDelim start="`r " end="`" contains=@R containedin=pandocLaTeXRegion,yamlFlowString keepend
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" I was not able to highlight rmdrInline inside a pandocLaTeXCommand, although
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" highlighting works within pandocLaTeXRegion and yamlFlowString.
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syntax cluster texMathZoneGroup add=rmdrInline
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" match slidify special marker
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syntax match rmdSlidifySpecial "\*\*\*"
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if rmdIsPandoc == 0
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syn match rmdBlockQuote /^\s*>.*\n\(.*\n\@<!\n\)*/ skipnl
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" LaTeX
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syntax include @LaTeX syntax/tex.vim
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if exists("b:current_syntax")
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unlet b:current_syntax
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endif
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" Inline
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syntax match rmdLaTeXInlDelim "\$"
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syntax match rmdLaTeXInlDelim "\\\$"
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syn region texMathZoneX matchgroup=Delimiter start="\$" skip="\\\\\|\\\$" matchgroup=Delimiter end="\$" end="%stopzone\>" contains=@texMathZoneGroup
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" Region
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syntax match rmdLaTeXRegDelim "\$\$" contained
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syntax match rmdLaTeXRegDelim "\$\$latex$" contained
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syntax match rmdLaTeXSt "\\[a-zA-Z]\+"
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syntax region rmdLaTeXRegion start="^\$\$" skip="\\\$" end="\$\$$" contains=@LaTeX,rmdLaTeXRegDelim keepend
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syntax region rmdLaTeXRegion2 start="^\\\[" end="\\\]" contains=@LaTeX,rmdLaTeXRegDelim keepend
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hi def link rmdBlockQuote Comment
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hi def link rmdLaTeXSt Statement
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hi def link rmdLaTeXInlDelim Special
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hi def link rmdLaTeXRegDelim Special
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endif
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for s:lng in g:rmd_syn_langs
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exe 'syn sync match rmd' . toupper(s:lng) . 'SyncChunk grouphere rmd' . toupper(s:lng) . 'Chunk /^[ \t]*``` *{\(' . s:lng . '\|r.*engine\s*=\s*["' . "']" . s:lng . "['" . '"]\)/'
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endfor
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hi def link rmdYamlBlockDelim Delim
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for s:lng in g:rmd_syn_langs
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exe 'hi def link rmd' . toupper(s:lng) . 'ChunkDelim Special'
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endfor
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hi def link rmdInlineDelim Special
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hi def link rmdSlidifySpecial Special
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let b:current_syntax = "rmd"
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" vim: ts=8 sw=2
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