View source for Template:Exists

<includeonly>{{#vardefine:alternativtext|'''This element does not exist in version {{{version}}} within the {{{subschema}}} subschema. It only exists in Version(s) {{versioLink|{{{subschema}}}:{{#if:{{{parent|}}}|{{{parent}}}:}}{{{element}}}}}.'''}}
{{#vardefine:alternativtext|'''This element does not appear in {{rml|{{{version}}}}} within the ''{{{subschema}}}'' subschema. It is available only in {{rml}} {{versioLink|{{{subschema}}}:{{#if:{{{parent|}}}|{{{parent}}}:}}{{{element}}}}}. {{#ifeq:{{{subschema}}}|CO|{{#ifexist:generic:{{#if:{{{parent|}}}|{{{parent}}}:}}{{{element}}}|<br />There exists an element {{tag|generic|{{#if:{{{parent|}}}|{{{parent}}}:}}{{{element}}}|ex=1}} that might have replaced or preceded it.&#32;}}}}{{#ifeq:{{{subschema}}}|generic|{{#ifexist:CO:{{#if:{{{parent|}}}|{{{parent}}}:}}{{{element}}}|<br />There exists an element {{tag|CO|{{#if:{{{parent|}}}|{{{parent}}}:}}{{{element}}}|ex=1}} that might have preceded or replaced it.&#32;}}}}Do not hesitate to contact {{site|https://www.railml.org/en/contact.html|railML.org|inlang=silent}} for further questions.}}'''
{{#ifexist:{{duplicate|subschema={{{subschema}}}|element={{{element}}}|parent={{{parent|}}}}}/{{{version}}}|{{:{{duplicate|subschema={{{subschema}}}|element={{{element}}}|parent={{{parent|}}}}}/{{{version}}}}}|{{#var:alternativtext}}}}[[category:TabberTest/{{{version}}}]]</includeonly><noinclude>
Template to check if an element exists in a certain version. If yes, the Syntax will be displayed. Otherwise a notice will appear.

The template employs [[Template:Duplicate]] to return the location of automatically generated content for the respective element in the respective version and transcludes it. If there is no such content, an alternative text will appear.

This template is designed to serve [[template:robot]].
==Example==
<pre>{{exists|subschema=RS|element=owner|version=3.1}}</pre>delivers:

{{exists|subschema=RS|element=owner|version=3.1}}

''(Which is an alternative text, as [[RS:owner/3.1]] is empty)''

<pre>{{exists|subschema=RS|element=owner|version=3.2}}</pre>delivers:

{{exists|subschema=RS|element=owner|version=3.2}}

''(Which is the transclusion of [[RS:owner/3.2]])''

[[Category:Template]]</noinclude>