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function! GetMainLatexFile()
let p = expand('%:p:h')
while simplify(p) != "/"
let main = globpath(p, '*.latexmain')
if main != ''
return fnamemodify(main, ":p:r")
endif
let p = globpath(p, '..')
endwhile
" no root document found, use current one
return expand('%:p')
endfunction
function! BuildLatex()
let oldcwd = getcwd()
let file = GetMainLatexFile()
let newcwd = fnamemodify(file, ":p:h")
exec "lcd" . newcwd
exe "! rubber -d" file
exec "lcd" . oldcwd
endfunction
function! ShowPDF()
let texfile = GetMainLatexFile()
let pdffile = fnamemodify(texfile, ":p:r") . ".pdf"
exe "! evince" pdffile ">/dev/null 2>&1 &"
endfunction
" compile latex via <F6>
nnoremap \rubber :call BuildLatex()<CR>
nmap <buffer> <F6> \rubber
imap <buffer> <F6> <C-O>\rubber
" open pdf via <F10>
nnoremap \evince :call ShowPDF()<CR><CR>
nmap <buffer> <F10> \evince
imap <buffer> <F10> <C-O>\evince
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