check_bad_keys <- function(x,valid,where) {
invalid <- setdiff(names(x),valid)
if(length(invalid)==0) {
return(invisible(NULL))
}
bad <- paste0(" - ",invalid,"\n")
bad <- c("Unrecognized keys in ", where,"\n", bad)
warning(bad, immediate.=TRUE, call.=FALSE)
}
spec_validate_meta <- function(meta) {
check_bad_keys(meta, VALID_SETUP_NAMES, "SETUP__:")
assert_that(exists("name",meta))
assert_that(exists("spec_file", meta))
assert_that(exists("spec_path", meta))
assert_that(exists("data_stem", meta))
assert_that(exists("data_path", meta))
assert_that(!is.null(meta[["data_stem"]]))
assert_that(nchar(meta[["data_stem"]]) > 0)
if(exists("import", meta)) {
assert_that(file.exists(meta[["import"]]))
}
return(invisible(NULL))
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.