Ulrike Fischer wrote:
And please don't repeat that you "was not in any
way trying to suggest that this is a general or universal
solution.". You _did_ sent the first example without any code which
restricted the effect of the catcodes changes and without any
warnings about side-effects. This was the posting I commented as
this is not my idea of an helpful answer.
As is so often the case, a suggestion (intended to be
helpful) becomes a protracted argument from which
the original questioner is effectively excluded. But
as I dislike being accused of something on a fallacious
basis, let me re-cite the original correspondence :
François (1) :
I would like to know why the numbers are different if typed with or
without the $ sign:
Using \setmainfont{Linux Libertine O} 7 is smaller than $7$
Is it possible to correct this? I want the same size (ie. $7$)
Of course I can always write $7$, but is there another way.
François (2) :
Thanks for this answer. It is not too nice if you have to write:
Multiply 5 by 7: $7\times 5 = 35$
Self (1) :
Bonjour, François : is this perhaps the sort of
thing you had in mind ?
\documentclass {minimal}
\usepackage {fontspec}
\setmainfont {Linux Libertine O}
\begin {document}
Multiply 5 by 7: $7\times 5 = 35$
\catcode `\5 = \active
\catcode `\7 = \active
\def 5{\ifmmode \string 5 \else $5$\fi}
\def 7{\ifmmode \string 7 \else $7$\fi}
Multiply 5 by 7: $7\times 5 = 35$
\end {document}
Obviously you can \catcode and \def all digits
from zero to nine in a simple loop to cope with
the general case.
My answer thus addressed François' problem /as stated/ :
it did not suggest that it was a solution to such
problems in general (although I can see that it /might/
be possible to misinterpret the last paragraph : when
I spoke of "the general case", I was referring to the
case of all the digits from zero to nine, not to the
entire class of problems of which François' was one
example).
Yes, I completely agree that "[I] sent the first
example without any code which restricted the
effect of the catcodes changes and without any
warnings about side-effects.", but I also assumed
that my answer would be interpreted within the context
of the question being asked, and not within the context
of such questions in general.
** Phil.
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