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Add a comment and FIXME that lualatex can make DVI

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The command 'lualatex' can produce a DVI with the option
--output-format=dvi
It is best to keep things as is because it is better to guess a PDF
than to guess a DVI (we do not use that feature of the 'lualatex'
command internally; we use 'dvilualatex' instead). However, we
should ideally get this information in a more robust way.

Thanks to Günter for pointing this out.
This commit is contained in:
Scott Kostyshak 2016-06-11 17:05:28 -04:00
parent 67e45aa36c
commit 2db62cf5d5
1 changed files with 6 additions and 0 deletions
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6
src/LaTeX.cpp
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@ -97,6 +97,12 @@ LaTeX::LaTeX(string const & latex, OutputParams const & rp,
: cmd(latex), file(f), path(p), lpath(lp), runparams(rp), biber(false)
{
num_errors = 0;
// lualatex can still produce a DVI with --output-format=dvi. However,
// we do not use that internally (we use the "dvilualatex" command) so
// it would only happen from a custom converter. Thus, it is better to
// guess that lualatex produces a PDF than to guess a DVI.
// FIXME we should base the extension on the output format, which we should
// get in a robust way, e.g. from the converter.
if (prefixIs(cmd, "pdf") || prefixIs(cmd, "lualatex") || prefixIs(cmd, "xelatex")) {
depfile = FileName(file.absFileName() + ".dep-pdf");
output_file =