lyx_mirror/lib/scripts/lyxsweave.R
Jean-Marc Lasgouttes 8c5e13335c Backport r38895, r38896 and r39068
This fixes bugs #7551 and #7552


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_2_0_X@39069 a592a061-630c-0410-9148-cb99ea01b6c8
2011-06-15 15:04:42 +00:00

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1.5 KiB
R

# file lyxsweave.R
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
# author Jean-Marc Lasgouttes
# Full author contact details are available in file CREDITS
# Wrapper around Sweave that sets up some things for LyX
# argument 1 is the absolute name of the input file
# argument 2 is the absolute name of the output file
# argument 3 is the iconv name for the encoding of the file
# argument 4 is the original document directory
ls.args <- commandArgs(trailingOnly=TRUE)
# check whether Sweave.sty is seen by LaTeX. if it is not, we will
# pass the option stylepath=TRUE to sweave so that a full path is given
# to \usepackage.
ls.sweavesty <- system("kpsewhich Sweave.sty", intern=TRUE, ignore.stderr=TRUE)
ls.sp <- (length(ls.sweavesty) == 0)
# set default encoding for input and output files; ls.enc is used in
# the sweave module preamble to reset the encoding to what it was.
ls.enc <- getOption("encoding")
options(encoding=ls.args[3])
# Change current directory to the document directory, so that R can find
# data files.
setwd(ls.args[4])
# this is passed as a prefix.string to tell where temporary files should go
# the output file without extension and without '.'
tmpout <- gsub(".", "-", sub("\\.tex$", "", basename(ls.args[2])), fixed = TRUE)
# replace
ls.pr <- paste(dirname(ls.args[2]), tmpout, sep="/")
# finally run sweave
Sweave(file=ls.args[1], output=ls.args[2], syntax="SweaveSyntaxNoweb", stylepath=ls.sp, prefix.string=ls.pr)