Pre-save transforms

From mediawiki.org
Jump to navigation Jump to search
Other languages:

Pre-save transforms (PST) are transformations which are applied to the content before it is even saved. They are implemented in the function preSaveTransform() of the appropriate Content subclass.

Wikitext[edit]

For Wikitext content , the parser ’s preSaveTransform() applies the following transformations, in order:

Null characters
Null characters are removed.
Trailing whitespace
Whitespace (according to PHP's rtrim()) at the end of the text is removed.
Line endings
Line endings \r\n as well as \r are normalized to \n.
Substitutions
{{subst:template name|template parameters}}
Signatures
~~~, ~~~~ and ~~~~~ − Note that this order has the nontrivial effect of not allowing template substitutions within a signature.
Pipe trick
[[phabricator:T1|]] becomes [[phabricator:T1|T1]]
[[title (topic)|]] becomes [[title (topic)|title]]

JSON[edit]

JsonContent::preSaveTransform() applies the following transformations, in order:

Beautify JSON
standardizes the formatting (“pretty”, i. e. split across lines and indented)
Line endings
Line endings \r\n as well as \r are normalized to \n.