Editing Augmented Backus–Naur form (section)

===White space===
White space is used to separate elements of a definition; for space to be recognized as a delimiter, it must be explicitly included. The explicit reference for a single [[whitespace character]] is <code>WSP</code> (linear white space), and <code>LWSP</code> is for zero or more whitespace characters with newlines permitted. The <code>LWSP</code> definition in RFC5234 is controversial<ref name="RFC5234 Errata">[http://www.rfc-editor.org/errata_search.php?rfc=5234&eid=3096 RFC Errata 3096].</ref> because at least one whitespace character is needed to form a delimiter between two fields.

Definitions are left-aligned. When multiple lines are required (for readability), continuation lines are indented by whitespace.