# `•xml` — XML text

`•xml text` reads XML into an element tree with the same meaning.
Attribute values become text. Names keep their prefixes, and namespace
declarations become `xmlns` attributes. Comments, processing
instructions and text that is only whitespace are dropped. [XML and
SVG](../xml.ipynb) covers element trees.

`•xml⁻¹ tree` writes the XML text of an element tree. It escapes `&`,
`<`, `>` and `"` in text and attribute values. A numeric vector
attribute becomes space-separated numbers. Children are text, elements
or vectors of children. An element with no children closes itself.

Errors: `DOMAIN` for malformed XML, and for invalid names or attribute
values given to `•xml⁻¹`.