{{ $math := "" -}}

{{ with .Get "inline" -}}
  {{/* Error checking */ -}}
  {{ if $.Inner -}}
    {{ errorf "%s: shortcode math with parameter 'inline' must not have inner content declared" $.Page.File.Path -}}
  {{ end -}}
  {{ if ne ( printf "%T" . ) "string" -}}
    {{ errorf "%s: shortcode math: parameter 'inline' must be a string" $.Page.File.Path -}}
  {{ end -}}
  {{ $math = . -}}
{{ else -}}
  {{ with $.Get 0 -}}
    {{ if $.Inner -}}
      {{ errorf "%s: shortcode math for inline content must not have inner content declared" $.Page.File.Path -}}
    {{ end -}}
    {{ $math = $.Get 0 -}}
  {{ else }}
  {{ if .IsNamedParams}}  
      {{ errorf "%s: shortcode math: Invalid named parameter(s) (%v) detected. Only named parameter 'inline' is allowed." $.Page.File.Path .Params -}}
    {{ end }}
  {{ end -}}
{{ end -}}

{{ if eq $math "" -}}
<p>$${{- .Inner | safeHTML }}$$</p>
{{ else -}}
${{- $math | safeHTML }}$
{{ end -}}

{{ .Page.Store.Set "hasMath" true }}