library(rvest)
> library
function (package, help, pos = 2, lib.loc = NULL, character.only = FALSE,
logical.return = FALSE, warn.conflicts, quietly = FALSE,
verbose = getOption("verbose"), mask.ok, exclude, include.only,
attach.required = missing(include.only))
{
conf.ctrl <- getOption("conflicts.policy")
if (is.character(conf.ctrl))
conf.ctrl <- switch(conf.ctrl, strict = list(error = TRUE,
warn = FALSE), depends.ok = list(error = TRUE, generics.ok = TRUE,
can.mask = c("base", "methods", "utils",
"grDevices", "graphics", "stats"),
depends.ok = TRUE), warning(gettextf("unknown conflict policy: %s",
sQuote(conf.ctrl)), call. = FALSE, domain = NA))
if (!is.list(conf.ctrl))
conf.ctrl <- NULL
stopOnConflict <- isTRUE(conf.ctrl$error)
if (missing(warn.conflicts))
warn.conflicts <- if (isFALSE(conf.ctrl$warn))
FALSE
else TRUE