Template:COinS safe/doc

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Usage

This template is a notice for templates that may be used in citation templates. By default, it indicates the template is safe for use as shown above.

To indicate a template that should not be used in a citation template:

{{COinS safe|n}}

  • |addtext= — additional text shown after the main message

When the template is set to not safe, the page is placed into Category:Templates not safe for use in citation templates.

Issue

Citation templates such as Citation Style 1 and Citation Style 2 generate COinS metadata. If a template is used in a citation template field, then it may inject HTML into the metadata.

Compare the rendered HTML for {{cite book}} with |author= using no template and using {{smallcaps}}.

Markup Renders as
{{cite book |author=Sam Drucker |title=Title}}

Sam Drucker. Title. 

<cite class="citation book">Sam Drucker. ''Title''.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fwiki.mattrude.com%3ATemplate%3ACOinS+safe%2Fdoc&rft.au=Sam+Drucker&rft.btitle=Title&rft.genre=book&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;">&nbsp;</span></span>

{{cite book |author={{smallcaps|Sam Drucker}} |title=Title}}

Sam Drucker. Title. 

<cite class="citation book"><span class="smallcaps" style="font-variant:small-caps;">Sam Drucker</span>. ''Title''.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fwiki.mattrude.com%3ATemplate%3ACOinS+safe%2Fdoc&rft.au=%3Cspan+class%3D%22smallcaps%22+style%3D%22font-variant%3Asmall-caps%3B%22%3ESam+Drucker%3C%2Fspan%3E&rft.btitle=Title&rft.genre=book&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;">&nbsp;</span></span>

The author metadata is in the rft.aulast field. In this case, it is percent-encoded and is rendered as <span class="smallcaps" style="font-variant:small-caps;">Sam Drucker</span>

Reference management software will interpret the entire span as the author name.

See also