Note that if D requires the directive Dialect(D) as part of its syntax then this implies that any D-admissible document must have this directive. ?
A round-falling of a keen admissible document for the a dialect, D, was an excellent semantics-retaining mapping so you can a document in virtually any language L with good semantics-sustaining mapping in the L-file back again to an enthusiastic admissible D-file. While semantically comparable, the original while the round-set-off D-documents doesn’t have to be the same.
cuatro.step one XML towards the RIF-FLD Language
RIF-FLD uses [XML1.0] for its XML sentence structure. The newest XML serialization getting RIF-FLD was alternating otherwise completely striped [ANF01]. A fully striped serialization viewpoints XML files given that things and you will splits all of the XML labels on the group descriptors, named form of tags, and assets descriptors, named part tags [TRT03]. I follow the community of using capitalized labels to have variety of tags and lowercase labels to possess role tags.
The all-uppercase classes in the EBNF of the presentation syntax, such as Formula, become XML Schema groups in Appendix XML Schema for FLD. They are not visible in instance markup. The other classes as well as non-terminals and symbols (such as Is present or =) become XML elements with optional attributes, as shown below.
Getting convenience of reference, the first algorithms are included on the top
The RIF serialization framework for the syntax of Section EBNF Grammar for the Presentation Syntax of RIF-FLD uses the following XML tags. While there is a RIF-FLD element tag for the Import directive and an attribute for the Dialect directive, there are none for the Base and Prefix directives: they are handled as discussed in Section Mapping from the RIF-FLD Presentation Syntax to the XML Syntax.
The name from an excellent prefix isn’t on the an enthusiastic XML ability, because it’s treated thru preprocessing since the chatted about inside Area Mapping of one’s Low-annotated RIF-FLD Code.
The id and meta elements, which are expansions of the IRIMETA element, can occur optionally as the initial children of any Class element.
The XML syntax for symbol spaces uses the type attribute associated with the XML element Const. For instance, a literal in the xs:dateTime datatype is represented as
The xml:lang attribute, as defined by 2.12 Language Identification of XML 1.0 or its successor specifications in the W3C recommendation track, is optionally used to identify the language for the presentation of the Const to the user. It is allowed only in association with constants of the type rdf:plainLiteral. A compliant implementation MUST ignore the xml:lang attribute if the type of the Const is not rdf:plainLiteral.
This example reveals an enthusiastic XML serialization into the algorithms inside Analogy step three. To own best readability, we again make use of the shortcut sentence https://datingranking.net/tr/trueview-inceleme/ structure outlined when you look at the [RIF-DTB].
This section defines a normative mapping, ?fld, from the presentation syntax of Section EBNF Grammar for the Presentation Syntax of RIF-FLD to the XML syntax of RIF-FLD. The mapping is given via tables where each row specifies the mapping of a particular syntactic pattern in the presentation syntax. These patterns appear in the first column of the tables and the bold-italic symbols represent metavariables. The second column represents the corresponding XML patterns, which may contain applications of the mapping ?fld to these metavariables. When an expression ?fld(metavar) occurs in an XML pattern in the right column of a translation table, it should be understood as a recursive application of ?fld to the presentation syntax represented by the metavariable. The XML syntax result of such an application is substituted for the expression ?fld(metavar). A sequence of terms containing metavariables with subscripts is indicated by an ellipsis. A metavariable or a well-formed XML subelement is marked as optional by appending a bold-italic question mark, ?, to its right.