Special Characters
Tags
The Apache Freemarker uses the HTML output format by default. In some cases, special characters placed within the MessageML must be HTML-escaped, otherwise, the request sending the MessageML will receive a 400 error response. The following are examples of valid HTML-escaping:
Character
HTML escaping
Required escaping
messageML example
<
<
Yes
<messageML><</messageML>
&
&
Yes
<messageML>& </messageML>
$
$
Yes The $ character only needs to be escaped if it comes before the { character.
<messageML>${}</messageML>
#
#
Yes The # character only needs to be escaped if it comes before the { character.
<messageML>#{}</messageML>
>
>
No
<messageML>></messageML>
"
"
No
<messageML>"</messageML>
'
'
No
<messageML>'</messageML>
*
*
No
<messageML>*</messageML>
%
%
No
<messageML>%</messageML>
Examples
Here after you can find an example of a message sent by a bot and containing these special characters as well as the structure of the messageML sent:
<messageML>
These are special characters:
<ul>
<li><;</li>
<li>&;</li>
<li>$ or $;</li>
<li># or #;</li>
<li>> or >;</li>
<li>" or ";</li>
<li>' or ';</li>
<li>* or *;</li>
<li>% or %.</li>
</ul>
</messageML>Last updated
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