Regular Language description for XML
Encyclopedia
REgular LAnguage description for XML (RELAX) is a specification for describing XML
-based languages.
A description written in RELAX is called a RELAX grammar.
RELAX Core has been approved as an ISO
/IEC
Technical Report 22250-1 in 2002 (ISO/IEC TR 22250-1:2002). It was developed by ISO/IEC JTC1/SC34
(ISO/IEC Joint Technical Committee 1, Subcommittee 34 - Document description and processing languages).
RELAX was designed by Murata Makoto
.
In 2001, an XML schema language RELAX NG
was created by unifying of RELAX Core and James Clark
's TREX
. It was published as ISO/IEC 19757-2 in 2003.
XML
Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....
-based languages.
A description written in RELAX is called a RELAX grammar.
RELAX Core has been approved as an ISO
International Organization for Standardization
The International Organization for Standardization , widely known as ISO, is an international standard-setting body composed of representatives from various national standards organizations. Founded on February 23, 1947, the organization promulgates worldwide proprietary, industrial and commercial...
/IEC
International Electrotechnical Commission
The International Electrotechnical Commission is a non-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies – collectively known as "electrotechnology"...
Technical Report 22250-1 in 2002 (ISO/IEC TR 22250-1:2002). It was developed by ISO/IEC JTC1/SC34
ISO/IEC JTC1/SC34
ISO/IEC JTC 1/SC 34 titled as Document description and processing languages is a subcommittee of the ISO/IEC JTC1 joint technical committee, which is a collaborative effort of both the International Organization for Standardization and the International Electrotechnical Commission.-Scope and Terms...
(ISO/IEC Joint Technical Committee 1, Subcommittee 34 - Document description and processing languages).
RELAX was designed by Murata Makoto
Murata Makoto
is a Japanese computer scientist.He participated in the W3C XML Working Group.The Working Group designed XML1.0, a markup language specification.Murata and James Clark designed RELAX NG, an XML schema language....
.
In 2001, an XML schema language RELAX NG
RELAX NG
In computing, RELAX NG is a schema language for XML, based on Murata Makoto's RELAX and James Clark's TREX. A RELAX NG schema specifies a pattern for the structure and content of an XML document...
was created by unifying of RELAX Core and James Clark
James Clark (XML expert)
James Clark, is the author of groff and expat and has done much work with open-source software and XML. Born in London, and educated at Charterhouse and Merton College, Oxford, Clark has lived in Bangkok, Thailand since 1995, and is now a permanent resident...
's TREX
TREX
Tree Regular Expressions for XML is a simple schema language for XML.TREX's author, James Clark, says: : A TREX pattern specifies a pattern for the structure and content of an XML document. A TREX pattern thus identifies a class of XML documents consisting of those documents that match the pattern...
. It was published as ISO/IEC 19757-2 in 2003.