Nothing
txt <- "
abline acf approx arrows axis
box browseURL
capture.output col2rgb colorRamp colors contour contourLines cor
demo density dev.cur dev.new dev.off
extendrange
fix frame
grey
hist
legend lines
make.packages.html median mtext
nlm nlminb
optim
pairs par plot plot.new points polygon
qnorm
rect rgb rnorm runif
segments str strwidth symbols
text
update
vignette
"
txt = gsub("\\n"," ",txt)
imports_for_undefined_globals <-
function(txt, lst, selective = TRUE)
{
if(!missing(txt))
lst <- scan(what = character(), text = txt, quiet = TRUE)
nms <- lapply(lst, find)
ind <- sapply(nms, length) > 0L
imp <- split(lst[ind], substring(unlist(nms[ind]), 9L))
if(selective) {
sprintf("importFrom(%s)",
vapply(Map(c, names(imp), imp),
function(e)
paste0("\"", e, "\"", collapse = ", "),
""))
} else {
sprintf("import(\"%s\")", names(imp))
}
}
# writeLines(imports_for_undefined_globals(txt))
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