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Hi, For those who like playing around you can use lua pettern matching in a match loop: \starttext \doloopovermatch {(\letterpercent w+) *(\letterpercent w*)} {aa bb cc dd} { [ \doloopovermatch {(\letterpercent w)(\letterpercent w)} {#1} {(##1 ##2)} \doloopovermatch {(\letterpercent w)(\letterpercent w)} {#2} {(##1 ##2)} ] } \blank \doloopovermatch {(\letterpercent d+)} {this 1 is 22 a 333 test} { [#1] } \blank \doloopovermatch {(.-)\letterpercent{\bf (.-)\letterpercent}(.*)} {this is {\bf a} test} {#1{\it not #2}#3} \blank \doloopovermatch {([\letterpercent w]+)} {\cldloadfile{tufte.tex}} { [#1] } \stoptext Probably not that useful (I never needed it but that doesn't say much) but it fits in the repertoire of loops. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------