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#### This is a dump of the S library used by S-mode with Version 4 of S.
#### (from John Chambers ??)
#### S-mode session functions.
#### assign(..., where=0) makes them last only for the current session.
### Martin Maechler: see also ./ess-sp3.S
### which uses assign(.., wh=0) which seems better
".SmodeDump" <- function(x, name)
{
## dump function for S-mode
assign(".SmodeTmp", options(error = dump.calls), where = 0, i = T)
on.exit( {
options(.SmodeTmp)
remove(".SmodeTmp", where = 0)
} )
dump(x, file = name)
}
".SmodeLoad" <- function(x)
{
## skeleton of a dump.calls interface, enough to keep s-mode
## informed that an error took place.
pseudo <- function()
cat(get.message(), "Dumped\n", sep = "", file = "|stderr")
## source function for S-mode
assign(".SmodeTmp", options(error = pseudo), where = 0, i = T)
on.exit( {
options(.SmodeTmp)
remove(".SmodeTmp", where = 0)
} )
invisible(source(x))
}
".SmodeObs" <- function(where, pattern)
{
if(pattern == "") objects(where) else objects(where, pattern)
}
".SmodePaths" <- function()
{
## the paths for the directories in the search list
temp <- search()
value <- character(length(temp))
for(i in seq(along.with = temp)) {
obj <- database.object(i)
if(is.character(obj) && length(obj) == 1)
value[[i]] <- obj
}
value
}
"smode.lvsave" <-
c(".Last.value",
".SmodeDump", ".SmodeLoad", ".SmodeObs", ".SmodePaths",
"smode.lvsave")
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