Crate quarb_xml 

XML adapter for Quarb.

Maps a well-formed XML document onto the arbor model, parsing with quick-xml. Unlike the HTML adapter, parsing is strict: mismatched or unclosed tags, duplicate attributes, and unknown entity references are errors.

• Elements are the nodes; text, CDATA, comments, processing instructions, and the doctype are not navigated (text is exposed as a projection instead).
• A node’s name is its tag exactly as written, including any namespace prefix (dc:title). Prefixes are not resolved to URIs. Since : is not a bare-name character in Quarb, a prefixed name is navigated with a quoted segment (//'dc:title'); ;;;local-name and ;;;ns-prefix metadata allow prefix-agnostic filtering (//*[;;;local-name = "title"]). The document root is unnamed; the document element is its single child.
• Nodes have no traits: XML has no universal structural vocabulary, and leaf/container distinctions are already available as core metadata (:::is-leaf, :::n-children).
• Attributes are properties: ::pages, ::href. The default projection (::) and ::text are the element’s text content; ;;;tag, ;;;id, ;;;local-name, ;;;ns-prefix, ;;;n-attrs, and any ;;;attr expose metadata.
• An attribute holding an ID reference resolves: ::ref~> follows a bare IDREF value (book="b1") or a fragment (href="#b1") to the element with that id or xml:id.
• Input is UTF-8 text; an encoding declaration in the XML prologue is ignored. Only the five predefined entities and numeric character references are resolved.

Structs

XmlAdapter

A Quarb adapter over a parsed XML document.

Enums

XmlError

An error building an XmlAdapter from document text.