Atom is an integer code for a string. The zero value maps to "".

An Attribute is an attribute namespace-key-value triple. Namespace is non-empty for foreign attributes like xlink, Key is alphabetic (and hence does n

A Node consists of a NodeType and some Data (tag name for element nodes, content for text) and are part of a tree of Nodes. Element nodes may also hav

A NodeType is the type of a Node.

A Token consists of a TokenType and some Data (tag name for start and end tags, content for text, comments and doctypes). A tag Token may also contain

A TokenType is the type of a Token.

A Tokenizer returns a stream of HTML Tokens.

eofStringsReader is like a strings.Reader but can return an (n, err) where n > 0 && err != nil.

An insertion mode (section 12.2.3.1) is the state transition function from a particular state in the HTML5 parser's state machine. It updates the pars

nodeStack is a stack of nodes.

A parser implements the HTML5 parsing algorithm: https://html.spec.whatwg.org/multipage/syntax.html#tree-construction

span is a range of bytes in a Tokenizer's buffer. The start is inclusive, the end is exclusive.

stuckReader is an io.Reader that always returns no data and no error.

A table represents an attempt at constructing the lookup table. The lookup table uses cuckoo hashing, meaning that each string can be found in one of

zeroOneByteReader is like a strings.Reader that alternates between returning 0 bytes and 1 byte at a time.