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0a65e96ed3
- use a null device to avoid the extra Rplots.pdf file created by Sweave - use directly setwd() instead of in the preamble of the module - add lots of comments. This finally fixes ticket #6623. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@38359 a592a061-630c-0410-9148-cb99ea01b6c8
42 lines
1.5 KiB
R
42 lines
1.5 KiB
R
# file lyxsweave.R
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# This file is part of LyX, the document processor.
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# Licence details can be found in the file COPYING.
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# author Jean-Marc Lasgouttes
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# Full author contact details are available in file CREDITS
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# Wrapper around Sweave that sets up some things for LyX
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# argument 1 is the absolute name of the input file
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# argument 2 is the absolute name of the output file
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# argument 3 is the iconv name for the encoding of the file
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# argument 4 is the original document directory
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ls.args <- commandArgs(trailingOnly=TRUE)
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# check whether Sweave.sty is seen by LaTeX. if it is not, we will
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# pass the option stylepath=TRUE to sweave so that a full path is given
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# to \usepackage.
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ls.sweavesty <- system("kpsewhich Sweave.sty", intern=TRUE, ignore.stderr=TRUE)
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ls.sp <- (length(ls.sweavesty) == 0)
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# set default encoding for input and output files; ls.enc is used in
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# the sweave module preamble to reset the encoding to what it was.
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ls.enc <- getOption("encoding")
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options(encoding=ls.args[3])
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# Change current directory to the document directory, so that R can find
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# data files.
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setwd(ls.args[4])
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# this is passed as a prefix.string to tell where temporary files should go
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ls.pr <- sub("\\.tex$", "", ls.args[2])
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# Replace the default pdf device by the null device (tip from Yihui Xie)
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# See: http://yihui.name/en/2010/12/a-special-graphics-device-in-r-the-null-device/
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.Call("R_GD_nullDevice", PACKAGE = "grDevices")
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# finally run sweave
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Sweave(file=ls.args[1], output=ls.args[2], syntax="SweaveSyntaxNoweb", stylepath=ls.sp, prefix.string=ls.pr)
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