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https://issues.apache.org/jira/browse/FLINK-9792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16543209#comment-16543209
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ASF GitHub Bot commented on FLINK-9792:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/6312#discussion_r202355843
--- Diff:
flink-core/src/main/java/org/apache/flink/configuration/description/LineBreakElement.java
---
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.configuration.description;
+
+/**
+ * Represents a line break in the {@link Description}.
+ */
+public class LineBreakElement implements BlockElement {
+
+ /**
+ * Creates a line break in the description.
+ */
+ public static LineBreakElement linebreak() {
+ return new LineBreakElement();
+ }
+
+ private LineBreakElement() {
+ }
+
+ @Override
+ public String format(Formatter formatter) {
+ return formatter.format(this);
--- End diff --
yes, nesting is an orthogonal issue.
For the nesting I suggest to change `Text` to implement `BlockElement`
instead; it then effectively behaves like `Sequence`. At the moment i don't see
a use-case for inserting Text into the format String since it could just be
part of the format string.
I mean, when would this make sense?
```
text("hello %s", text("world"))
``
> Cannot add html tags in options description
> -------------------------------------------
>
> Key: FLINK-9792
> URL: https://issues.apache.org/jira/browse/FLINK-9792
> Project: Flink
> Issue Type: Bug
> Components: Documentation
> Affects Versions: 1.5.1, 1.6.0
> Reporter: Dawid Wysakowicz
> Assignee: Dawid Wysakowicz
> Priority: Major
> Labels: pull-request-available
>
> Right now it is impossible to add any html tags in options description,
> because all "<" and ">" are escaped. Therefore some links there do not work.
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