Hello, thanks Hans, this works perfectly... Lukas
\startbuffer[demo] <a> <aa number="--">--</aa> <aa number="a1">A1</aa> <ax number="x1">X1</ab> <ab number="b1">B1</ab> <aa number="--">--</aa> <aa number="a2">A2</aa> <ax number="x2">X2</ab> <ab number="b2">B2</ab> <aa number="--">--</aa> <aa number="a3">A3</aa> <ax number="x3">X3</ab> <ab number="b3">B3</ab> </a> \stopbuffer
\startxmlsetups xml:initialize \xmlsetsetup{#1}{*}{xml:*} \stopxmlsetups
\startxmlsetups xml:a \xmlflush{#1} \stopxmlsetups
\startxmlsetups xml:aa \par <aa>\xmlflush{#1}</aa> \par \stopxmlsetups
\startxmlsetups xml:ax \par <ax>\xmlflush{#1}</ax> \par \stopxmlsetups
\startxmlsetups xml:ab \par <ab> \xmlflush{#1}:\space aa: \xmlfilter{#1}{reverse-sibling::[tag() == 'aa']/attribute('number')}\space ax: \xmlfilter{#1}{reverse-sibling::[tag() == 'ax']/attribute('number')}\space </ab> \par \stopxmlsetups
\xmlregistersetup{xml:initialize}
\starttext \xmlprocessbuffer{main}{demo}{} \stoptext
-- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 Fax: +420 244 461 038