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Because of the new beta I tried it again with a current Mk IV version (2011.01.18 19:34). The examples I provided (from the wiki, now abbreviated, with numbering) have correct line breaks but the second line does not get a number. \setuptyping[TEX][escape=yes, numbering=line] \startTEX /BTEX\em sometex/ETEX /BTEX\em sometex/ETEX \after \stopTEX \setuptyping[TEX][escape={[[,]]}] \startTEX [[\em sometex]] [[\em sometex]] \after \stopTEX The example from Peter Münster works worse: now there is one line break more instead of one less. In addition the escaped line does not get a number as above. It works if the line starts with (non-escaped) text, space or tab. \definetyping[Test][escape={/,/}, numbering=line] \starttext Two line breaks between the first two blas \\ The second bla does not get a number \startTest bla /bla/ bla \stopTest \stoptext In the examples above there's a difference when using start/stopTEX with setuptyping[TEX] and when using start/stopTest with definetyping[Test]. I don't know why. Thank you so far, Hans. Best regards, Stefan.