Vorlage:MELi

{{#vardefineecho:link|{{{link}}}}}{{#vardefine:text|{{{text}}}}}{{#ifexpr: {{#len:{{{tooltip}}}}} < 1 | {{#vardefine:tooltip|{{{link}}}}} | {{#vardefine:tooltip|{{{tooltip}}}}} }}[{{{link}}} {{{text}}}]

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{{#if: | Parameter tooltip is defined and non-null/non-empty. {{#vardefineecho:tooltip|{{{tooltip}}}}} | Parameter tooltip is not defined, or is defined but null. It contains only empty string(s) or breaking space(s) etc. now? {{#ifexpr: {{#len: {{{tooltip}}} }} > 0 | {{#vardefineecho:tooltip|{{{link}}}}} | {{#vardefineecho:tooltip|... }} }} }}

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[{{#var:link}} {{#var:text}}]

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