Geneva Document Specification

This is a draft standard, this notice will disappear once the specification is final.

A Geneva document is an ordered collection of elements. Geneva defines the following element types:

Rich Text

A central component of all element types is rich text. Rich text is defined as a sequence of text tokens, each made up of a variable number of character strings and an attribute to signify its appearance. There are five different types of text tokens:

plain sRender s in regular font.
bold sRecommends to render s in bold font.
italic sRecommends to render s in italic font.
fixed-width sRecommends to render s in fixed-width font.
url sInterpret s as a Uniform Resource Locator.
url s, uInterpret u as a Uniform Resource Locator and s as its label.
Table 1. Text token types.

The occurrence of whitespace characters in text token strings is restricted by the following rules:

At least the following conceptual characters have to be recognized as whitespace:

Element Types

A paragraph consists of exactly one rich text sequence. It signifies a self-contained piece of text.

A listing consists of a finite sequence of rich text sequences. It signifies an ordered group of self-contained text pieces.

A table consists of a two-dimensional matrix of rich text sequences and a single rich text sequence being its description. It signifies a tabular relation of the matrix of rich text pieces.

A plaintext element consists of a verbatim character string and a single rich text sequence being its description. It signifies a sequence of characters which has to be preserved as is except for whitespace prefixes and suffixes (including newlines).

A media element consists of an Unique Resource Locator string and a single rich text sequence being its description. It signifies the embedment of an external resource.

A description as mentioned above, is a piece of text elaborating the contents of a given element.

A section consists of a Geneva document and a single rich text sequence being its heading. It signifies a continuous subsequence of the document, introduced by a headline (the heading).

Formal Definition

The table below defines a Geneva document formally using the modifed BNF syntax described in ANSI Common Lisp's Notational Conventions

document-elementpargraph | listing | table | plaintext | media | section
tablerich-text table-row+
plaintextrich-text string
mediarich-text string
sectionrich-text document-element*
text-tokenA text token, see “Rich Text”
stringA character string
Table 2. Formal definition of a Geneva document.