Nothing
# forked from https://github.com/yihui/knitr/blob/master/R/defaults.R
new_defaults = function(value = list()) {
defaults = value
get = function(name, default = FALSE, drop = TRUE) {
if (default) defaults = value # this is only a local version
if (missing(name)) defaults else {
if (drop && length(name) == 1) defaults[[name]] else {
stats::setNames(defaults[name], name)
}
}
}
resolve = function(...) {
dots = list(...)
if (length(dots) == 0) return()
if (is.null(names(dots)) && length(dots) == 1 && is.list(dots[[1]]))
if (length(dots <- dots[[1]]) == 0) return()
dots
}
set = function(...) {
dots = resolve(...)
if (length(dots)) defaults <<- merge(dots)
invisible(NULL)
}
merge = function(values) merge_list(defaults, values)
restore = function(target = value) defaults <<- target
append = function(...) {
dots = resolve(...)
for (i in names(dots)) dots[[i]] <- c(defaults[[i]], dots[[i]])
if (length(dots)) defaults <<- merge(dots)
invisible(NULL)
}
list(get = get, set = set, append = append, merge = merge, restore = restore)
}
#' @title Default and current remedy options
#'
#' @description Options for functions in the remedy package. When running R code, the object \code{remedy_opts}
#' (default options) is not modified by chunk headers (local chunk options are
#' merged with default options), whereas \code{remedy_opts_current} (current options)
#' changes with different chunk headers and it always reflects the options for
#' the current chunk.
#'
#' Normally we set up the global options once in the first code chunk in a
#' document using \code{remedy_opts$set()}, so that all \emph{latter} chunks will
#' use these options. Note the global options set in one chunk will not affect
#' the options in this chunk itself, and that is why we often need to set global
#' options in a separate chunk.
#'
#' Below is a list of default chunk options, retrieved via
#' \code{remedy_opts$get()}:
#'
# @references Usage: \url{https://yihui.name/knitr/objects/}
#'
# A list of available options:
# \url{https://yihui.name/knitr/options/#chunk_options}
#' @note \code{remedy_opts_current} is read-only in the sense that it does nothing if
#' you call \code{remedy_opts_current$set()}; you can only query the options via
#' \code{remedy_opts_current$get()}.
#' @export
#' @rdname remedyOpts
#' @examples remedy_opts$get()
remedy_opts <- new_defaults(list(
basic=FALSE,
name='remedy',
counter=TRUE,
chunk_opts=NULL,
kable_opts=NULL,
full_doc=FALSE,
token_purl='^#{2} -{4}(.*?)-{4,}$',
token_url = "^(?:(?:https?|ftp|file)://|www\\.|ftp\\.)[A-z0-9+&@#/%=~_|$?!:,.-]*[A-z0-9+&@#/%=~_|$]$", # URL regex
token_rel_link = "^.*[/|\\.][^\\.]+$", # Relative link regex
token_img_link = c('jpeg','jpg','png','gif'), # Image link
youtube_output = 'html',
youtube_width = '100%',
youtube_height = '400',
hotkeys = c(
backtick = "Ctrl+Cmd+`",
bold = "Ctrl+Cmd+B",
chunk = "Ctrl+Alt+Cmd+C",
chunksplit = "Ctrl+Shift+Alt+C",
chunkname = "Ctrl+Shift+Alt+N",
footnote = "Ctrl+Cmd+Shift+6",
h1 = "Ctrl+Cmd+1",
h2 = "Ctrl+Cmd+2",
h3 = "Ctrl+Cmd+3",
h4 = "Ctrl+Cmd+4",
h5 = "Ctrl+Cmd+5",
h6 = "Ctrl+Cmd+6",
htmlcomment = "Ctrl+Alt+C",
image = "Ctrl+Cmd+P",
italics = "Ctrl+Cmd+I",
latex = "Ctrl+Cmd+L",
list = "Ctrl+Shift+Cmd+=",
right = "Alt+Cmd+Right",
strike = "Ctrl+Cmd+S",
table = "Ctrl+Cmd+T",
url = "Ctrl+Cmd+U",
xaringan = "Ctrl+Cmd+X",
youtube = "Ctrl+Cmd+Y"
)
))
#' @rdname remedyOpts
#' @export
remedy_opts_current <- new_defaults()
# merge elements of y into x with the same names
merge_list <- function(x, y) {
x[names(y)] <- y
x
}
#from stats
setNames <- function (object = nm, nm)
{
names(object) <- nm
object
}
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