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Taco Hoekwater wrote:
Aditya Mahajan wrote:
Inspired by Alexander Perlis' macros in http://www.tug.org/TUGboat/Articles/tb22-4/tb72perlS.pdf can we have the math equivalent of llap etc. in ConTeXt.
Ideally, \llap etc. should be modified so that they work in math mode also (just like \smash and \phantom). If not, we can have the following simple definitions:
Some extra \do 's fix up the textmode comands (supp-box.tex):
\def\dorlap{\begingroup\dowithnextbox{\normalhbox to \zeropoint {\flushnextbox\normalhss}\endgroup}\normalhbox}
\def\dollap{\begingroup\dowithnextbox{\normalhbox to \zeropoint {\normalhss\flushnextbox}\endgroup}\normalhbox}
\def\doclap{\begingroup\dowithnextbox{\normalhbox to \zeropoint {\normalhss\flushnextbox\normalhss}\endgroup}\normalhbox}
\def\domathclap{\mathpalette\dodomathclap} \def\dodomathclap#1#2{\doclap{$\m@th#1#2$}}
\def\domathllap{\mathpalette\dodomathllap} \def\dodomathllap#1#2{\dollap{$\m@th#1#2$}}
\def\domathrlap{\mathpalette\dodomathrlap} \def\dodomathrlap#1#2{\dorlap{$\m@th#1#2$}}
\unexpanded\def\rlap{\ifmmode \@EA\domathrlap \else \@EA\dorlap \fi} \unexpanded\def\llap{\ifmmode \@EA\domathllap \else \@EA\dollap \fi} \unexpanded\def\clap{\ifmmode \@EA\domathclap \else \@EA\doclap \fi}
or \unexpanded\def\rlap{\mathortext\domathrlap\dorlap} \unexpanded\def\llap{\mathortext\domathllap\dollap} \unexpanded\def\clap{\mathortext\domathclap\doclap} before i add this, we need to be sure that llap/rlap are not used in math constructs which expect it to behave like an hbox -- ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------