How to force MediaWiki to observe separate line breaks?

Question

By default, MediaWiki ignores single line breaks, treating them as one space. To insert a new row on the page, you must insert in it two consecutive line breaks in the source, leading to a new paragraph: </p><p>. It is also possible to paste <br />directly into the source code.

How can I change the parsing mechanism of MediaWiki so that line breaks in the source are automatically replaced <br />in the resulting HTML?

(Source: http://www.mediawiki.org/wiki/Help:Formatting )

Answer 1

https://www.mediawiki.org/wiki/Extension:Poem

<poem>
Roses are red
Violets are blue
</poem>

Answer 2

, br- wikicode. , - , wikicode br, ?

: , br, wikicode . , :

{|
|+ The table caption
|-
|Cell 1
|Cell 2
|-
|Cell A
|Cell B
|}

, br .

Answer 3

<pre></pre>

This html tag seems to do the job for me.