FixIt/layouts/_markup/render-codeblock.html

{{- $config := .Attributes | merge (.Page.Param "codeblock") -}}
{{- $result := transform.HighlightCodeBlock . -}}
{{- $wrapper := $result.Wrapped -}}

{{- if $config.wrapper -}}
  {{- $mode := $config.mode | default "classic" -}}
  {{- $class := "highlight" -}}
  {{- with $config.class -}}{{ $class = add $class " " . }}{{- end -}}
  {{- $targetClass := add "code-block " $class -}}
  {{- with $config.wrapperclass -}}{{ $targetClass = add $targetClass " " . }}{{- end -}}

  {{- /* add code wrapper */ -}}
  {{- $REin := cond (strings.Contains $wrapper `<table class="lntable">`)
    `(<table class="lntable">[\s\S]*?<\/table>)`
    `(<pre tabindex="0" class="chroma">[\s\S]*?<\/pre>)` -}}
  {{- $REout := printf `<div class="code-wrapper">$1</div>` -}}
  {{- $wrapper = replaceRE $REin $REout $wrapper -}}

  {{- /* hide line numbers if linenos=false */ -}}
  {{- if not (strings.Contains $wrapper `class="lnt"`) | and (not (strings.Contains $wrapper `class="ln"`)) -}}
    {{- $targetClass = add $targetClass " line-nos-hidden" -}}
  {{- end -}}

  {{- /* add code expand button */ -}}
  {{- $lines := cond .Inner (len (split .Inner "\n")) 0 -}}
  {{- $maxShownLines := $config.maxshownlines -}}
  {{- if (gt $lines $maxShownLines) | and (gt $lines 0) | and (gt $maxShownLines 0) -}}
    {{- $wrapper = dict "Wrapper" $wrapper | partial "function/code-expand-btn.html" -}}
  {{- end -}}

  {{- /* render for different modes */ -}}
  {{- if eq $mode "classic" -}}
    {{- $wrapper = dict "Wrapper" $wrapper "Config" $config "Type" .Type | partial "function/code-header.html" -}}
  {{- else -}}
    {{- $wrapper = dict "Wrapper" $wrapper "Config" $config | partial "function/code-copy-btn.html" -}}
  {{- end -}}

  {{- /* add data attributes and class */ -}}
  {{- if $config.editable -}}
    {{- $wrapper =
      replace $wrapper
      (printf `class="%s"` $class)
      (printf `class="%s" data-editable="%v"` $class $config.editable)
    -}}
  {{- end -}}
  {{- if $config.copyable -}}
    {{- $wrapper =
      replace $wrapper
      (printf `class="%s"` $class)
      (printf `class="%s" data-copyable="%v"` $class $config.copyable)
    -}}
  {{- end -}}
  {{- if ne .Options.linenostart nil -}}
    {{- $wrapper =
      replace $wrapper
      (printf `class="%s"` $class)
      (printf `class="%s" data-linenostart="%v"` $class .Options.linenostart)
    -}}
  {{- end -}}
  {{- $wrapper =
    replace $wrapper
    (printf `class="%s"` $class)
    (printf `class="%s" data-mode="%s" data-max="%v" data-lines="%d"` $targetClass $mode $maxShownLines $lines)
  -}}

  {{- /* remove redundant attributes */ -}}
  {{- $configKeys := slice -}}
  {{- range $key, $_ := .Page.Param "codeblock" -}}
    {{- $configKeys = $configKeys | append $key -}}
  {{- end -}}
  {{- $wrapper = replaceRE (printf `\s+(?:%s|name)="[^"]*"` (delimit $configKeys "|")) "" $wrapper -}}
{{- end -}}

{{- $wrapper | safeHTML -}}