This is an example of a presentation using Hugo’s compile-time syntax highlighter.
Reveal.js uses Javascript for syntax highlighting (via Highlight.js). This might slow the presentation down if many slides contain code.
Hugo has a built-in compile-time highlighter, and it’s lightning fast too!
You can enable it using the highlight shortcode.
{{< highlight go >}}
package main
import "fmt"
func main() {
fmt.Println("Hello world!")
}
{{< /highlight >}}Several options are supported, check Hugo’s documentation.
1{{< highlight go "style=github,linenos=inline,hl_lines=6" >}}
2
3package main
4
5import "fmt"
6
7func main() {
8 fmt.Println("Hello world!")
9}
10
11{{< /highlight >}}You can also use Hugo’s highlighter in markdown code fences,
by putting this in config.toml:
# use Hugo's hl in markdown (with or without a language tag)
[markup.highlight]
codeFences = true
style = "github"(This can only be enabled globally for all presentations.)
package main
import "fmt"
func main() {
fmt.Println("Hello world!")
}package main
import "fmt"
func main() {
fmt.Println("Hello world!")
}
If you don’t need highlight.js at all, you can prevent it from loading.
# This works both in config.toml and a presentation's front
# matter. Default plugins include highlight.js, so disable them
# and load those that we want manually.
[params.reveal_hugo]
load_default_plugins = false
[[params.reveal_hugo.plugins]]
name = "RevealZoom"
source = "reveal-js/plugin/zoom-js/zoom.js"
[[params.reveal_hugo.plugins]]
name = "RevealNotes"
source = "reveal-js/plugin/notes/notes.js"