Bootstrap Carousel Short-code with support for language

carousel.html

{{/* carousel "en" "My Caption" "photo1" "photo2" "photoN" */}}
{{ $captionId := replace (replace (.Get 1) " " "") "," "" }}
{{ $caption := .Get 1 }}
{{ $numOfParams := len .Params }}
<div>
  <div id="{{ $captionId }}" class="carousel slide carousel-fade" data-ride="carousel">
    <ol class="carousel-indicators">
      {{ range $idx, $item := (seq $numOfParams) }}
        {{ if ge $idx 2 }}
        {{ $target := sub $idx 2 }}
        <li data-target="#{{ $captionId }}" data-slide-to="{{ $target }}" class="{{ if gt $target 0 }}{{else}}active{{ end }}"></li>
        {{ end }}
      {{ end }}
    </ol>
    <div class="carousel-inner">
      {{ range $idx, $item := (seq $numOfParams) }}
        {{ if and (ge $idx 1) (lt $idx (sub $numOfParams 1)) }}
        {{- $src := $.Get . }}
        {{ $target := sub $idx 1 }}
        <div class="carousel-item {{ if gt $target 0 }}{{else}}active{{ end }}">
          <img src="{{ $src }}" class="d-block w-100" alt="{{ $caption }}">
        </div>
        {{ end }}
      {{ end }}
    </div>
    <a class="carousel-control-prev" href="#{{ $captionId }}" role="button" data-slide="prev">
      <span class="carousel-control-prev-icon" aria-hidden="true"></span>
      <span class="sr-only">{{if .Get 0 | eq "en" }}Previous{{ else }}Anterior{{ end }}</span>
    </a>
    <a class="carousel-control-next" href="#{{ $captionId }}" role="button" data-slide="next">
      <span class="carousel-control-next-icon" aria-hidden="true"></span>
      <span class="sr-only">{{if .Get 0 | eq "en" }}Next{{ else }}Siguiente{{ end }}</span>
    </a>
  </div>
  <p style="text-align: center; font-style: italic;">{{.Get 1}}</p>
</div>
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