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Regular Language description for XML
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<p>REgular LAnguage description for XML (RELAX) is a specification for describing <a href="/facts/XML/clNgUfWk">XML</a>-based languages. A description written in RELAX is called a RELAX grammar. </p><p><i>RELAX Core</i> has been approved as an <a href="/facts/International_Organization_for_Standardization/IacYR7Yg">ISO</a>/<a href="/facts/International_Electrotechnical_Commission/hSK0kjwI">IEC</a> Technical Report 22250–1 in 2002 (ISO/IEC TR 22250-1:2002). It was developed by <a href="/facts/ISO/IEC_JTC_1/SC_34/vmSoAxln">ISO/IEC JTC 1/SC 34</a> (ISO/IEC Joint Technical Committee 1, Subcommittee 34 - Document description and processing languages). </p><p>RELAX was designed by <a href="/facts/Murata_Makoto/NwPp1pr8">Murata Makoto</a>. </p><p>In 2001, an XML schema language <a href="/facts/RELAX_NG/16dj0TGq">RELAX NG</a> was created by unifying of RELAX Core and <a href="/facts/James_Clark_(programmer)/SXyEkoMz">James Clark</a>'s TREX. It was published as ISO/IEC 19757–2 in 2003. </p>