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###########################################################################/**
# @RdocDefault rclean
# @alias rclean.RspString
# @alias rclean.RspDocument
#
# @title "Compiles an RSP document into a preprocessed and validated RSP document"
#
# \description{
# @get "title".
# }
#
# @synopsis
#
# \arguments{
# \item{...}{@character strings with RSP markup.}
# \item{file, path}{Alternatively, a file, a URL or a @connection from
# with the strings are read.
# If a file, the \code{path} is prepended to the file, iff given.}
# \item{envir}{The @environment in which the RSP string is preprocessed.}
# \item{args}{A named @list of arguments assigned to the environment
# in which the RSP document is parsed.
# See @see "R.utils::cmdArgs".}
# \item{verbose}{See @see "R.utils::Verbose".}
# }
#
# \value{
# Returns an @see "RspString".
# }
#
# @examples "../incl/rclean.Rex"
#
# @author
#
# \seealso{
# @see "rcat" and @see "rfile".
# }
#
# @keyword file
# @keyword IO
# @keyword internal
#*/###########################################################################
setMethodS3("rclean", "default", function(..., file=NULL, path=NULL, envir=parent.frame(), args="*", verbose=FALSE) {
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Validate arguments
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Argument 'file' & 'path':
if (inherits(file, "connection")) {
} else if (is.character(file)) {
if (!is.null(path)) {
file <- file.path(path, file)
}
if (!isUrl(file)) {
file <- Arguments$getReadablePathname(file, absolute=TRUE)
}
}
# Argument 'verbose':
verbose <- Arguments$getVerbose(verbose)
if (verbose) {
pushState(verbose)
on.exit(popState(verbose))
}
verbose && enter(verbose, "rclean() for default")
if (is.null(file)) {
s <- RspString(...)
} else {
verbose && cat(verbose, "Input file: ", file)
s <- .readText(file)
s <- RspString(s, source=file, ...)
s <- setMetadata(s, name="source", value=file)
}
verbose && cat(verbose, "Length of RSP string: ", nchar(s))
res <- rclean(s, envir=envir, args=args, verbose=verbose)
verbose && exit(verbose)
res
}) # rclean()
setMethodS3("rclean", "RspString", function(object, envir=parent.frame(), args="*", ..., verbose=FALSE) {
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Validate arguments
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Argument 'args':
args <- cmdArgs(args=args)
# Argument 'verbose':
verbose <- Arguments$getVerbose(verbose)
if (verbose) {
pushState(verbose)
on.exit(popState(verbose))
}
verbose && enter(verbose, "rclean() for ", class(object)[1L])
if (length(args) > 0L) {
verbose && enter(verbose, "Assigning RSP arguments to processing environment")
verbose && cat(verbose, "Environment: ", getName(envir))
verbose && cat(verbose, "RSP arguments:")
verbose && str(verbose, args)
# Assign arguments to the parse/evaluation environment
names <- attachLocally(args, envir=envir)
if (verbose) {
if (length(names) > 0L) {
printf(verbose, "Variables assigned: [%d] %s\n", length(names), hpaste(names))
member <- NULL; rm(list="member"); # To please R CMD check
ll <- subset(ll(envir=envir), member %in% names)
print(verbose, ll)
}
}
verbose && exit(verbose)
} else {
names <- NULL
}
if (verbose) {
enter(verbose, "Parse RSP string to RSP document")
cat(verbose, "Parse environment: ", getName(envir))
if (length(names) > 0L) {
ll <- subset(ll(envir=envir), member %in% names)
print(verbose, ll)
}
}
doc <- parseDocument(object, envir=envir, ..., verbose=verbose)
verbose && print(verbose, doc)
verbose && exit(verbose)
res <- rclean(doc, envir=envir, args=NULL, ..., verbose=verbose)
verbose && exit(verbose)
res
}) # rclean()
setMethodS3("rclean", "RspDocument", function(object, envir=parent.frame(), ..., verbose=FALSE) {
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Validate arguments
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Argument 'verbose':
verbose <- Arguments$getVerbose(verbose)
if (verbose) {
pushState(verbose)
on.exit(popState(verbose))
}
verbose && enter(verbose, "rclean() for ", class(object)[1L])
verbose && enter(verbose, "Coerce RSP document to RSP string")
s <- asRspString(object)
verbose && exit(verbose)
verbose && exit(verbose)
s
}) # rclean()
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