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function! sonictemplate#lang#html#guess() abort
let [m1, m2] = ['<\([^ >]\+\)[^>]*>', '</[^>]\+>\zs']
let area = [searchpairpos(m1, '\%#', m2, 'bnW'), searchpos(m2, 'nW')]
if area[0][0] == 0 || area[1][0] == 0
return []
endif
let lines = getline(area[0][0], area[1][0])
if area[0][0] == area[1][0]
let lines[0] = lines[0][area[0][1]-1:area[1][1]-1]
else
let lines[0] = lines[0][area[0][1]-1:]
let lines[-1] = lines[-1][:area[1][1]-1]
endif
let content = join(lines, "\n")
let tag = matchstr(content, '^<\zs[^> ]\+\ze.*')
let inner = substitute(matchstr(content, '^<[^>]\+>\zs.*\ze</[^>]\+>$'), '[ \t\r\n]', '', 'g')
if tag == 'script'
return {
\ 'filetype': 'javascript',
\ 'prefix': len(inner) > 0 ? 'snip' : 'base',
\}
endif
if tag == 'style'
return {
\ 'filetype': 'css',
\ 'prefix': len(inner) > 0 ? 'snip' : 'base',
\}
endif
if tag == 'head'
return {
\ 'filter': 'link\|meta'
\}
endif
return []
endfunction
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