# argument 3 is the iconv name for the encoding of the file
# argument 4 is the original document directory
-ls.args <- commandArgs(trailingOnly=TRUE)
+.cmdargs <- commandArgs(trailingOnly=TRUE)
# check whether Sweave.sty is seen by LaTeX. if it is not, we will
# copy it alongside the .tex file (in general in the temporary
# but this is a problem of installation of R on the user's machine.
# The advantage compared to the use of stylepath, is that the exported
# .tex file will be portable to another machine. (JMarc)
-ls.sweavesty <- system("kpsewhich Sweave.sty", intern=TRUE, ignore.stderr=TRUE)
-if (!length(ls.sweavesty)) {
- stypath <- file.path(R.home("share"), "texmf", "tex", "latex", "Sweave.sty")
- file.copy(stypath, dirname(ls.args[2]), overwrite=TRUE)
+if (!length(system("kpsewhich Sweave.sty", intern=TRUE, ignore.stderr=TRUE))) {
+ file.copy(file.path(R.home("share"), "texmf", "tex", "latex", "Sweave.sty"),
+ dirname(.cmdargs[2]), overwrite=TRUE)
}
-# set default encoding for input and output files; ls.enc is used in
+# set default encoding for input and output files; .orig.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])
+.orig.enc <- getOption("encoding")
+options(encoding=.cmdargs[3])
# Change current directory to the document directory, so that R can find
# data files.
-setwd(ls.args[4])
+setwd(.cmdargs[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$", "", basename(ls.args[2])), fixed = TRUE)
-# replace
-ls.pr <- paste(dirname(ls.args[2]), tmpout, sep="/")
+tmpout <- gsub(".", "-", sub("\\.tex$", "", basename(.cmdargs[2])), fixed = TRUE)
+# replace
+.prefix.str <- paste(dirname(.cmdargs[2]), tmpout, sep="/")
+rm(tmpout)
# finally run sweave
-Sweave(file=ls.args[1], output=ls.args[2], syntax="SweaveSyntaxNoweb", prefix.string=ls.pr)
+Sweave(file=.cmdargs[1], output=.cmdargs[2], syntax="SweaveSyntaxNoweb", prefix.string=.prefix.str)
# remove absolute path from \includegraphics
-ls.doc = readLines(ls.args[2])
-ls.cmd = paste('\\includegraphics{', dirname(ls.args[2]), "/", sep = "")
+options(encoding=.cmdargs[3]) # encoding has been changed in the preamble chunk
+ls.doc = readLines(.cmdargs[2])
+ls.cmd = paste('\\includegraphics{', dirname(.cmdargs[2]), "/", sep = "")
ls.idx = grep(ls.cmd, ls.doc, fixed = TRUE)
if (length(ls.idx)) {
ls.doc[ls.idx] = sub(ls.cmd, "\\includegraphics{", ls.doc[ls.idx], fixed = TRUE)
- writeLines(ls.doc, ls.args[2])
+ writeLines(ls.doc, .cmdargs[2])
}