This is probably from Rdpack (actually, 'rbibutils', see below). Several
references in your REFERENCES.bib contain \emph In 'title' fields. The
backslash in \emph is converted to \backslash, resulting in \backslashemph.
This looks like a bug, please open an issue on github (for Rdpack or rbibutils).
Georgi Boshnakov
===
diwan <- "@article{diwan_methods_1995,
title = {Methods of developing a core collection of annual \\emph{{Medicago}}
species}, volume = {90}, language = {en}, number = {6}, journal = {Theoretical
and Applied Genetics}, author = {Diwan, N. and McIntosh, M. S. and Bauchan, G.
R.}, month = may, year = {1995}, keywords = {Annual Medicago species, Core
collection, Germplasm collection, Relative Diversity method}, pages =
{755--761} }"
rbibutils::charToBib(diwan) # devel version on github, otherwise use readBib(()
to read from file.
## Diwan N, McIntosh MS, Bauchan GR (1995). "Methods of developing a core ##
collection of annual \backslashemph{{Medicago}} species." _Theoretical ## and
Applied Genetics_, *90*(6), 755-761.
-----Original Message-----
From: R-package-devel <r-package-devel-boun...@r-project.org> On Behalf Of
Aravind J.
Sent: 23 May 2021 20:21
To: r-package-devel@r-project.org
Subject: [R-pkg-devel] Troubleshoot unknown macro '\backslashemph' warning
Hi,
While checking two of my packages
(https://github.com/aravind-j/EvaluateCore and
https://github.com/aravind-j/augmentedRCBD)with winbuilder while preparing for
submitting an updated version, I am getting the following warning.
* checking Rd files ... [4s] WARNING
prepare_Rd: <connection>:2: unknown macro '\backslashemph'
prepare_Rd: <connection>:6: unknown macro '\backslashemph'
prepare_Rd: <connection>:2: unknown macro '\backslashemph'
prepare_Rd: <connection>:4: unknown macro '\backslashemph
I am not able to find the offending macros anywhere in the Rd files being
generated. I am using two RdMacros, mathjaxr and Rdpack.
How to troubleshoot?
--
J.Aravind
Scientist,
Division of Germplasm Conservation,
ICAR-National Bureau of Plant Genetic Resources, New Delhi - 110 012
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