tab.html

<!-- Make sure that we are enclosed within a tabpane shortcode block -->
{{ with $.Parent }}
  {{- if ne $.Parent.Name "tabpane" -}}
    {{- errorf "shortcode 'tab' must be used within a 'tabpane' block" -}}
  {{- end -}}
{{- end -}}

{{ $header := "Tab" }}
{{ if and (not .IsNamedParams) (.Get 0) }}
  {{ $header = (.Get 0) }}
{{ else }}
  <!-- Prefill header if not given as named or unnamed parameter -->
  {{ $header = default (printf "Tab %v" ( add $.Ordinal 1)) (.Get "header") }}
{{ end }}

<!-- store all tab info in dict tab -->
{{ $tab := dict "header" $header }}
{{ with $.Get "lang" }}
  {{ $tab = merge $tab (dict "language" ($.Get "lang")) }}
{{ end }}
{{ with $.Get "highlight" }}
  {{ $tab = merge $tab (dict "highlight" ($.Get "highlight")) }}
{{ end }}
{{ with $.Get "text" }}
  {{ if ne ( printf "%T" . ) "bool" }}
  {{- errorf "shortcode tab: parameter 'text' must be either true or false" -}}
  {{ end }}
  {{ $tab = merge $tab (dict "text" ($.Get "text")) }}
{{ end }}
{{ with $.Get "right" }}
  {{ if ne ( printf "%T" . ) "bool" }}
  {{- errorf "shortcode tab: parameter 'right' must be either true or false" -}}
  {{ end }}
  {{ $tab = merge $tab (dict "rightpush" ($.Get "right")) }}
{{ end }}
{{ with $.Get "disabled" }}
  {{ if ne ( printf "%T" . ) "bool" }}
  {{- errorf "shortcode tab: parameter 'disabled' must be either true or false" -}}
  {{ end }}
  {{ $tab = merge $tab (dict "disabled" ($.Get "disabled")) }}
{{ end }}

{{ with $.Inner }}
  <!-- Trim any leading and trailing newlines from .Inner, this avoids
       spurious lines during syntax highlighting -->
  {{ $tab = merge $tab (dict "content" $.Inner ) }}
{{ end }}

<!-- add dict tab to parent's scratchpad -->
{{ with .Parent }}
  {{- $.Parent.Scratch.SetInMap "tabs" (printf "%02v" $.Ordinal) $tab -}}
{{ end }}