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support code syntax highlighting #30

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support code syntax highlighting #30

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2 changes: 2 additions & 0 deletions R/decorate_chunk.R
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Original file line number Diff line number Diff line change
Expand Up @@ -165,6 +165,8 @@ decorate_chunk <- function(chunk_name,

attr(knitted, "orig_chunk_text") <- my_code

attr(knitted, "engine") <- my_engine

return(knitted)

}
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8 changes: 4 additions & 4 deletions R/with_flair.R
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Expand Up @@ -40,8 +40,8 @@ knit_print.with_flair <- function(x, ...) {
}

where_sources <- map(x, ~attr(.x, "class")) == "source"

x[where_sources] <- map(x[where_sources], function(src) prep_source(src, doc_type))
src_type = attr(x, "engine")
x[where_sources] <- map(x[where_sources], function(src) prep_source(src, doc_type, src_type))

x <- stringr::str_c(unlist(x), collapse = "\n")

Expand All @@ -56,7 +56,7 @@ knit_print.with_flair <- function(x, ...) {
#'
#' @return Properly wrapped text.
#'
prep_source <- function(x, doc_type = "unknown") {
prep_source <- function(x, doc_type = "unknown", src_type = "unknown") {

x <- stringr::str_trim(x) %>%
stringr::str_replace_all("(?<=\\s) ", "&nbsp;")
Expand Down Expand Up @@ -87,7 +87,7 @@ prep_source <- function(x, doc_type = "unknown") {

} else if (doc_type == "html_document") {

x <- paste0("<pre class='prettyprint'>", txt_tocode(x), "</pre>")
x <- paste0("<pre class='prettyprint ", src_type, "'>", txt_tocode(x), "</pre>")

} else if (doc_type == "ioslides_presentation") {

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