On Sat, Oct 1, 2011 at 4:12 AM, Aditya Mahajan <[email protected]> wrote: >>> In principle a cleaner implementation is possible in luatex (without >>> using >>> active characters), but I am not completely sure about this. It will be >>> better to handle this as part of \mnum macro. >>> >> Hm, can you explain this a bit ? > > Currently ConTeXt already checks if '.' is part of a complete number or not > as part of the export macros. For example: > > \m{x + 1.25y = 3.5} > > exports as > > <m:math > display="inline"><m:mrow><m:mi>𝑥</m:mi><m:mo>+</m:mo><m:mn>1.25</m:mn><m:mi>𝑦</m:mi><m:mo>=</m:mo><m:mn>3.5</m:mn></m:mrow></m:math> > > Notice that 1.25 is part of a single <m:mn> tag. > > In contrast, if you use comma as a math delimiter, then the export function > does not recognize the number correctly. > > \m{x + 1,25y = 3.5} > > exports as > > <m:math > display="inline"><m:mrow><m:mi>𝑥</m:mi><m:mo>+</m:mo><m:mn>1</m:mn><m:mo>,</m:mo><m:mn>25</m:mn><m:mi>𝑦</m:mi><m:mo>=</m:mo><m:mn>3</m:mn><m:mo>,</m:mo><m:mn>5</m:mn></m:mrow></m:math> > > However, we do have a \mn macro (math number) to tag numbers. So you can > type > > \m{x + \mn{1,25}y = \mn{3,5}} > > which exports as > > <m:math > display="inline"><m:mrow><m:mi>𝑥</m:mi><m:mo>+</m:mo><m:mn>1,25</m:mn><m:mi>𝑦</m:mi><m:mo>=</m:mo><m:mn>3,5</m:mn></m:mrow></m:math> > > > So, if we want to recognize ',' as a decimal separator, two solutions are > possible in MkIV. The first is to build upon the existing export code that > recognizes '.' as a decimal separator (to figure out the contents of the > <mn> tag) to also recognize ',' as a decimal separator; > > The drawback of such an approach is that if you are in the habit of not > adding a space after a comma, for example writing "Let $\naturalnumbers$ > denote the set $\{1,2,3,\dots\}$ of natural numbers..." then you will get > wrong output. > > So, an alternative option is to ask the user to tag all numbers with \mn. > Then, the \mn{...} macro can redefine the comma so that the spaces around it > match its use as a decimal separator. > > Aditya
ok -- luigi ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : [email protected] / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________
