30 lines
579 B
VimL
30 lines
579 B
VimL
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"
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" Change filetype to javascript.jsx if a js file imports `React`
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"
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function! s:ScanFile()
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let n = 1
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let nmax = line('$')
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if line('$') > 500
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let nmax = 500
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endif
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while n < nmax
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if getline(n) =~# "\\v<React>"
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return 1
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break
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endif
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let n = n + 1
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endwhile
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return 0
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endfunction
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function! s:DetectJSX()
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if match(&filetype, '\v<jsx>') != -1
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return
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endif
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if s:ScanFile()
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set filetype=javascript.jsx
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endif
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endfunction
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autocmd BufNewFile,BufRead *.js call s:DetectJSX()
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