On 25-1-2012 18:04, Philipp A. wrote:

while we are at it: how to do do strikethrough text? there is a changelog on contextgarden which says it was added, but \strike or \strikethrough are not defined.

i have (a diagonal) one here, but it doesn’t really work in math mode (the text inside is normal). that being said, is there something like \ifthiswascalledinmathmode{then}{else}?

\ifmmode

\def\strike#1{\tikz[baseline=(c.base)]{ \node[inner sep=0pt] (c) {#1}; \draw (c.south west) -- (c.north east); }}

probably more efficient: \startuniqueMPgraphic{strikeme} path p ; p := OverlayBox topenlarged -ExHeight bottomenlarged -ExHeight ; draw llcorner p -- urcorner p withcolor OverlayColor ; \stopuniqueMPgraphic \defineoverlay[strikeme][\uniqueMPgraphic{strikeme}] \defineframed[StrikeMe][background=strikeme,frame=off,offset=0pt,location=low,backgroundcolor=blue] \starttext \dorecurse{100}{test \StrikeMe{now \recurselevel} test $\StrikeMe{x}$ test \StrikeMe{$x$} test } \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

Am 25.01.2012 um 20:20 schrieb Philipp A.:

2012/1/25 Hans Hagen \ifmmode

thanks. that was obvious…

$\StrikeMe{x}$

unfortunately this does the same as my tikz version: it exits math mode:

$\StrikeMe{\ifmmode math mode! \else no math mode :( \fi} \ifmmode math mode. \else wat \fi$

returns

no math mode :( math mode.

\framed puts the content in a \hbox and when you put a \hbox in a math environment the text in the box is typeset in text mode, this feature is used for the \text command. To get now the content of the \StrikeMe command in math mode a different definition. \defineframed[StrikeMeFrame][background=strikeme,frame=off,offset=0pt,location=low,backgroundcolor=blue] \define[1]\StrikeMe {\ifmmode \StrikeMeFrame{$#1$}% \else \StrikeMeFrame{#1}% \fi} Wolfgang

2012/1/25 Aditya Mahajan

Better is to use: \StrikeMeFrame{\mathsurround\zeropoint$#1$}. But for this to work in subscripts and superscripts, you must use math palette. IIRC, \mframed does that. In principle:

\mframed[background=strikeme]{**...}

should work (untested).

@Hans: Can we have \definemframed etc as well?

Aditya

so this should work? ‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒ \startuniqueMPgraphic{strikeme} path p ; p := OverlayBox topenlarged -ExHeight bottomenlarged -ExHeight ; draw llcorner p -- urcorner p withcolor OverlayColor ; \stopuniqueMPgraphic \defineoverlay[strikeme][\uniqueMPgraphic{strikeme}] \def\strike#1{% \ifmmode% \mframed[background=strikeme,frame=off]{#1}% \else% \inframed[background=strikeme,frame=off]{#1}% \fi} \starttext \startformula {\strike2a + \strike ab \over \strike a} = a \stopformula Works in text, \strike{two}too! \stoptext

On 25-1-2012 21:17, Aditya Mahajan wrote:

@Hans: Can we have \definemframed etc as well?

sure, the next beta will have ... \starttext \dontleavehmode test \mframed{x} test $x^{\mframed{x}}$ test \inmframed{x} test $x^{\inmframed{x}}$ test \definemathframed[whatever][location=low] \dontleavehmode test \whatever{x} test $x^{\whatever[framecolor=red]{x}}$ test \definemathframed[another][whatever][background=color,backgroundcolor=blue,foregroundcolor=white] \dontleavehmode test \another{x} test $x^{\another[framecolor=red]{x}}$ test \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------