only worry about spaces in google font family

R/style_xaringan.R

       text_font_weight <- substr(text_font_weight, 1, regexpr(",", text_font_weight)[1] - 1)
       text_font_url <- gf$url
     } else {
-      for (thing in c("family", "url")) {
-        eval(parse(text = paste0(group, "_font_", thing, " <- quote_elements_w_spaces(gf$", thing, ")")))
-      }
+      eval(parse(text = paste0(group, "_font_family <- quote_elements_w_spaces(gf$family)")))
+      eval(parse(text = paste0(group, "_font_url <- gf$url")))
     }
     eval(parse(text = paste0(group, "_font_is_google <- 1")))
   }

inst/scripts/style_xaringan_body.R

     text_font_weight <- substr(text_font_weight, 1, regexpr(",", text_font_weight)[1] - 1)
     text_font_url <- gf$url
   } else {
-    for (thing in c("family", "url")) {
-      eval(parse(text = paste0(group, "_font_", thing, " <- quote_elements_w_spaces(gf$", thing, ")")))
-    }
+    eval(parse(text = paste0(group, "_font_family <- quote_elements_w_spaces(gf$family)")))
+    eval(parse(text = paste0(group, "_font_url <- gf$url")))
   }
   eval(parse(text = paste0(group, "_font_is_google <- 1")))
 }

tests/testthat/css/duo-header_bg.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/duo.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/duo_accent.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/duo_accent_inverse.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/mono_accent.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/mono_accent_inverse.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/mono_dark.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/mono_light-header_bg.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/mono_light.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/solarized_dark-header_bg.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/solarized_dark.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/solarized_light.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {

tests/testthat/css/xaringan.css

  *
  * ------------------------------------------------------- */
 @import url(https://fonts.googleapis.com/css?family=Noto+Serif&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Cabin:600, 600i&display=swap);
-@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400, 700&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Cabin:600,600i&display=swap);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&display=swap);
 
 
 :root {