1 files changed, 5 insertions, 3 deletions
diff --git a/develop/print.html b/develop/print.html
index 656233fa17..3be1c4c723 100644
--- a/develop/print.html
+++ b/develop/print.html
@@ -5827,7 +5827,7 @@ unless <a href="usage/configuration/config_documentation.html#enable_registratio
</code></pre>
<hr />
<h3 id="registrations_require_3pid"><a class="header" href="#registrations_require_3pid"><code>registrations_require_3pid</code></a></h3>
-<p>If this is set, users must provide all of the specified types of 3PID when registering an account.</p>
+<p>If this is set, users must provide all of the specified types of <a href="https://spec.matrix.org/latest/appendices/#3pid-types">3PID</a> when registering an account.</p>
<p>Note that <a href="usage/configuration/config_documentation.html#enable_registration"><code>enable_registration</code></a> must also be set to allow account registration.</p>
<p>Example configuration:</p>
<pre><code class="language-yaml">registrations_require_3pid:
@@ -5844,7 +5844,9 @@ flow (overrides <code>registrations_require_3pid</code> if MSISDNs are set as re
<hr />
<h3 id="allowed_local_3pids"><a class="header" href="#allowed_local_3pids"><code>allowed_local_3pids</code></a></h3>
<p>Mandate that users are only allowed to associate certain formats of
-3PIDs with accounts on this server, as specified by the <code>medium</code> and <code>pattern</code> sub-options.</p>
+3PIDs with accounts on this server, as specified by the <code>medium</code> and <code>pattern</code> sub-options.
+<code>pattern</code> is a <a href="https://docs.python.org/3/library/re.html#module-re">Perl-like regular expression</a>.</p>
+<p>More information about 3PIDs, allowed <code>medium</code> types and their <code>address</code> syntax can be found <a href="https://spec.matrix.org/latest/appendices/#3pid-types">in the Matrix spec</a>.</p>
<p>Example configuration:</p>
<pre><code class="language-yaml">allowed_local_3pids:
- medium: email
@@ -5852,7 +5854,7 @@ flow (overrides <code>registrations_require_3pid</code> if MSISDNs are set as re
- medium: email
pattern: '^[^@]+@vector\.im$'
- medium: msisdn
- pattern: '\+44'
+ pattern: '^44\d{10}$'
</code></pre>
<hr />
<h3 id="enable_3pid_lookup"><a class="header" href="#enable_3pid_lookup"><code>enable_3pid_lookup</code></a></h3>
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