Remove stringr dependency

DESCRIPTION

     colorspace,
     glue,
     purrr,
-    stringr,
     tibble,
     utils,
     whisker

R/coolors.R

 xaringan_coolors_accent <- function(coolors_url, order = "12345", ...) {
   stopifnot(length(coolors_url) == 1)
   colors <- coolors2colors(coolors_url)
-  order <- stringr::str_split(order, "")[1]
+  order <- strplit(order, "")[1]
   order <- unlist(purrr::map(order, as.integer))
   colors <- colors[order]
 
 }
 
 coolors2colors <- function(url) {
-  colors <- stringr::str_extract(url, "([a-f0-9]{6}-?){5}")
-  colors <- stringr::str_split(colors, "-")
+  colors <- sub(".*(([a-f0-9]{6}-?){5}).*", "\\1", url)
+  colors <- strsplit(colors, "-")
   colors <- purrr::map(colors, ~ paste0("#", .))
   if (length(colors) == 1) colors[[1]]
   else colors

R/style_xaringan.R

     if (!inherits(gf, "google_font")) stop(
       "`", var, "` must be set using `google_font()`."
     )
-    group <- stringr::str_split(var, "_")[[1]][1]
+    group <- strsplit(var, "_")[[1]][1]
     if (group == "text") {
       text_font_family <- gf$family
       text_font_weight <- gf$weights %||% "normal"

R/utils.R

     weights = weights,
     languages = languages,
     url = paste0(
-      base, stringr::str_replace_all(family, " ", "+"),
+      base, gsub(" ", "+", family),
       if (!is.null(weights)) paste0(":", weights),
       if (!is.null(languages)) paste0("&subset=", languages)
     )
 }
 
 quote_elements_w_spaces <- function(x) {
-  x <- stringr::str_split(x, ", ?")[[1]]
-  has_space <- stringr::str_detect(x, "\\w \\w")
-  not_quoted <- stringr::str_detect(x, "^\\w.+\\w$")
+  x <- strsplit(x, ", ?")[[1]]
+  has_space <- grepl("\\w \\w", x)
+  not_quoted <- grepl("^\\w.+\\w$", x)
   x[has_space & not_quoted] <- paste0("'", x[has_space & not_quoted], "'")
   paste(x, collapse = ", ")
 }

inst/scripts/generate_theme_functions.R

       glue::glue_data(
         tv,
         "#' @param {variable} {description}. ",
-        "Defaults to {stringr::str_replace_all(default, '[{{}}]', '`')}. ",
+        "Defaults to {gsub('[{{}}]', '`', default)}. ",
         "{element_description(element)}")
     ),
     "#' @template extra_css",
     as.character(
       glue::glue_data(
         tv,
-        "  {variable} = {ifelse(!stringr::str_detect(default, '^[{].+[}]$'), paste0('\"', default, '\"'), stringr::str_replace_all(default, '[{}]', ''))},")
+        "  {variable} = {ifelse(!grepl('^[{].+[}]$', default), paste0('\"', default, '\"'), gsub('[{}]', '', default))},")
     ),
     "  extra_css = NULL,",
     "  extra_fonts = NULL,",

inst/scripts/style_xaringan_body.R

   if (!inherits(gf, "google_font")) stop(
     "`", var, "` must be set using `google_font()`."
   )
-  group <- stringr::str_split(var, "_")[[1]][1]
+  group <- strsplit(var, "_")[[1]][1]
   if (group == "text") {
     text_font_family <- gf$family
     text_font_weight <- gf$weights %||% "normal"