Nothing
# highligh_text() and highlight_examples() are only used for usage
# and examples, and are specifically excluded in tweak_reference_highlighting()
highlight_text <- function(text) {
out <- downlit::highlight(text, classes = downlit::classes_pandoc())
if (!is.na(out)) {
sourceCode(pre(out, r_code = TRUE))
} else {
sourceCode(pre(escape_html(text)))
}
}
highlight_examples <- function(code, topic, env = globalenv()) {
bg <- fig_settings()$bg %||% NA
# some options from testthat::local_reproducible_output()
# https://github.com/r-lib/testthat/blob/47935141d430e002070a95dd8af6dbf70def0994/R/local.R#L86
withr::local_options(list(
device = function(...) ragg::agg_png(..., bg = bg),
rlang_interactive = FALSE,
cli.num_colors = 256,
cli.dynamic = FALSE
))
withr::local_envvar(RSTUDIO = NA)
withr::local_collate("C")
fig_save_topic <- function(plot, id) {
name <- paste0(topic, "-", id)
do.call(fig_save, c(list(plot, name), fig_settings()))
}
out <- downlit::evaluate_and_highlight(
code,
fig_save = fig_save_topic,
env = child_env(env),
output_handler = evaluate::new_output_handler(value = pkgdown_print)
)
structure(
sourceCode(pre(out, r_code = TRUE)),
dependencies = attr(out, "dependencies")
)
}
pre <- function(x, r_code = FALSE) {
paste0(
"<pre", if (r_code) " class='sourceCode r'", ">", "<code>",
x,
"</code>","</pre>"
)
}
sourceCode <- function(x) {
paste0("<div class='sourceCode'>", x, "</div>")
}
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