[SOLVED] Split {{ .Inner }} into lines in the shortcode

support
1

I am new to Hugo as well as to Go lang. I am trying to create a paired shortcode which would split {{ .Inner }} into lines and add a prefix to each line. To make it simple, I’d like this:

{{< prompt role="user" symbol="$" >}}
line 1
line 2
{{< /prompt >}}

to be converted to this:

<pre>
user $ line 1
user $ line 2
</pre>

I created theme/layouts/shortcodes/prompt.html. Leaving aside all fancy stuff, it contains:

<pre>
{{- .Get "role" }} {{ .Get "symbol" -}} 
{{- .Inner -}}
</pre>

The result is pretty close to what I want but I need to split {{ .Inner }} into lines. I learned that I can use {{ .Inner }} in Hugo and there is a Split() function in strings package in Go. As far as I understand, I can’t import this package directly in Hugo. How can I then achieve my goal?

2

Use a shortcode with markdown…which can be called as {{%%}} instead of {{<>}}. The percent sign tells Hugo to put .Inner through BkackFriday.

3

Thanks for the suggestion, but it won’t help in my case. First, the shortcode is supposed to work with code blocks which I don’t want to be processed as markdown. Second, it still gives me no possibility to access to {{ .Inner }} line by line and to add a prefix to each line.

4

Can you use split?

{{ range := split .Inner "\n" }}
prefix {{ printf "%s\n" . }}
{{ end }}
1 Like
5

Gotcha. I’m still not 100% exactly how you want the desired output, but if the first and second arguments are always paired (i.e., user always equals $, or any other combination), you can do this with multiple combinations on the client (namely, pseudo selectors but maybe a bit of JS). I’ve been fiddling with code block shortcodes a lot lately. LMK if I can help.

6

Exactly what I needed! Thanks! Actually I was trying to do that but apparently my syntax was wrong. Though yours example also contains odd := after range. That worked for me:

{{ range split .Inner "\n" }}
prefix {{ printf "%s\n" . }}
{{ end }}
7

Sorry that I wasn’t very clear. Finally it came out that my question was about the syntax. Thanks for interesting pointers anyways!

1 Like