- syn match _rubyFunction /\(\.\|\s\|^\)\@<=\w\+\((\)\@=/
- hi link _rubyFunction Function
- hi link rubyRoute Type
- hi link rubyValidation Type
- syn region rubyBlockParameterList matchgroup=Operator start="\%(\%(\<do\>\|{\)\_s*\)\@32<=|" end="|" oneline display contains=rubyBlockParameter
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