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1
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dvips <- function(filename, path=NULL, opts=NULL, ..., force=FALSE, verbose=FALSE) {
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2
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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3
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|
# Validate arguments
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4
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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5
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|
# Argument 'filename' & 'path':
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6
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0
|
pathname <- Arguments$getReadablePathname(filename, path=path, mustExist=TRUE)
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|
7
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|
|
|
8
|
|
# Argument 'opts':
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|
9
|
0
|
opts <- Arguments$getCharacters(opts)
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|
10
|
0
|
opts <- paste(opts, collapse=" ")
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|
11
|
|
|
|
12
|
|
# Argument 'force':
|
|
13
|
0
|
force <- Arguments$getLogical(force)
|
|
14
|
|
|
|
15
|
|
# Argument 'verbose':
|
|
16
|
0
|
verbose <- Arguments$getVerbose(verbose)
|
|
17
|
0
|
if (verbose) {
|
|
18
|
0
|
pushState(verbose)
|
|
19
|
0
|
on.exit(popState(verbose))
|
|
20
|
|
}
|
|
21
|
|
|
|
22
|
|
|
|
23
|
0
|
verbose && enter(verbose, "dvips")
|
|
24
|
0
|
verbose && cat(verbose, "DVI pathname: ", pathname)
|
|
25
|
|
|
|
26
|
0
|
filename <- basename(pathname)
|
|
27
|
0
|
path <- dirname(pathname)
|
|
28
|
|
|
|
29
|
0
|
filename2 <- gsub("[.]dvi", ".ps", filename)
|
|
30
|
0
|
pathname2 <- Arguments$getWritablePathname(filename2, path=path)
|
|
31
|
0
|
verbose && cat(verbose, "PS pathname: ", pathname2)
|
|
32
|
|
|
|
33
|
|
# Is output file up to date?
|
|
34
|
0
|
isUpToDate <- FALSE
|
|
35
|
0
|
if (!force && isFile(pathname2)) {
|
|
36
|
0
|
date <- file.info(pathname)$mtime
|
|
37
|
0
|
verbose && cat(verbose, "Source file modified on: ", date)
|
|
38
|
0
|
outDate <- file.info(pathname2)$mtime
|
|
39
|
0
|
verbose && cat(verbose, "Output file modified on: ", outDate)
|
|
40
|
0
|
if (is.finite(date) && is.finite(outDate)) {
|
|
41
|
0
|
isUpToDate <- (outDate >= date)
|
|
42
|
|
}
|
|
43
|
0
|
verbose && printf(verbose, "Output file is %sup to date.\n", ifelse(isUpToDate, "", "not "))
|
|
44
|
|
}
|
|
45
|
|
|
|
46
|
|
|
|
47
|
0
|
if (!isUpToDate || !isFile(pathname2)) {
|
|
48
|
0
|
verbose && enter(verbose, "Calling dvips")
|
|
49
|
|
# Change working directory
|
|
50
|
0
|
opwd <- getwd()
|
|
51
|
0
|
on.exit(setwd(opwd))
|
|
52
|
0
|
setwd(path)
|
|
53
|
|
|
|
54
|
0
|
verbose && cat(verbose, "Working directory: ", getwd())
|
|
55
|
0
|
verbose && cat(verbose, "Filename: ", filename)
|
|
56
|
|
|
|
57
|
0
|
cmd <- sprintf("dvips %s %s", opts, filename)
|
|
58
|
0
|
system(cmd)
|
|
59
|
0
|
verbose && exit(verbose)
|
|
60
|
|
}
|
|
61
|
|
|
|
62
|
|
# Sanity check
|
|
63
|
0
|
pathname2 <- Arguments$getReadablePathname(pathname2, mustExist=TRUE)
|
|
64
|
|
|
|
65
|
0
|
verbose && exit(verbose)
|
|
66
|
|
|
|
67
|
0
|
invisible(pathname2)
|
|
68
|
|
} # dvips()
|
HenrikBengtsson