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<!-- Get the current buildcondition from the config and lowercase it -->
{{- $condition := lower $.Site.Params.buildCondition -}}
{{- if ne $condition "" -}}
<!-- Get the parameters from the shortcode invocation and lowercase them.
TODO: to enable multiple conditions, we could accept comma-separated lists and split them -->
{{- $include_if := lower (.Get "include-if") -}}
{{- $exclude_if := lower (.Get "exclude-if") -}}
{{- if and (in $include_if $condition) (in $exclude_if $condition) -}}
<!-- condition appears in both parameters -->
{{- errorf "Build condition %q appears in both include-if and exclude-if parameters of conditional-txt shortcode on page %s" $condition .Position -}}
{{- end -}}
{{- if isset $.Params "include-if" -}}
<!-- WARNING substring matches are matches as well! That means, if include-if="foobar", and buildcondition is "foo", you have a match!-->
{{- if in $include_if $condition -}}
<!-- Do not indent the next Inner line, because the inner becomes a blockquote if the conditional-text is nested in another shortcode -->
{{- .Inner -}}
{{- else -}}
{{- end -}}
{{- else -}}
{{- if isset $.Params "exclude-if" -}}
<!-- WARNING substring matches are matches as well! That means, if exclude-if="foobar", and buildcondition is "foo", you have a match!-->
{{- if in $exclude_if $condition -}}
{{- else -}}
<!-- Do not indent the next Inner line, because the inner becomes a blockquote if the conditional-text is nested in another shortcode -->
{{- .Inner -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- end -}}
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