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 spherical-tripping away from a keen admissible file for the a dialect, D, try an effective semantics-preserving mapping so you’re able to a file in any words L followed by an effective semantics-sustaining mapping in the L-file back again to a keen admissible D-file. When you are semantically comparable, the original plus the round-set-off D-files need not be similar.
4.step one XML towards the RIF-FLD Code
RIF-FLD spends [XML1.0] because of its XML syntax. The new XML serialization having RIF-FLD is changing otherwise totally striped [ANF01]. A fully striped serialization feedback XML documents given that things and you can splits all of the XML tags to your category descriptors, called types of tags, and you can possessions descriptors, titled character tags [TRT03]. I stick to the society of utilizing capitalized names to own particular tags and you will lowercase names having part labels.
The all-uppercase classes in the EBNF of the presentation syntax, such as Algorithm, 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 available or =) become XML elements with optional attributes, as shown below.
Getting capability of source, the first algorithms are included above
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 Transfer directive and an attribute for the Dialect directive, there are none for the Foot https://datingranking.net/tr/swingstown-inceleme/ and Prefix directives: they are handled as discussed in Section Mapping from the RIF-FLD Presentation Syntax to the XML Syntax.
The name out-of a prefix isn’t of this an enthusiastic XML feature, since it is addressed via preprocessing because chatted about in the Area Mapping of the Non-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 case suggests a keen XML serialization towards formulas during the Analogy 3. For most useful readability, i again use the shortcut sentence structure discussed 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.