On 24/08/2016 8:09 AM, Patrick Brown wrote:
Currently Makefiles for vignettes are only supported for .tex files. Could
the tools package be modified to allow file extensions to be specified for
a vignette engine? Having the pandoc pdf conversion in a Makefile rather
than through R would be tidier in some cases.
If I specify my vignette engine as
```
tools::vignetteEngine(
'myengine',
pattern = '\\.[Rr](md|nw)$',
output = c('md', 'tex'),
...
)
```
the `tools:::find_vignette_product` function could have
`if (final) c("pdf", "html") else unique(c("pdf", "html", "tex",
engine$output))`
that's probably the only line that would need changing.
Sounds reasonable. Try it out in R-devel, and submit a patch.
Note that there is at least one other request for vignette improvements,
i.e.
https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=16333, with a
promise to submit a patch. It hasn't arrived in 16 months. So please
don't promise a patch unless you intend to deliver.
Duncan Murdoch
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