Re: Taco's \molecule fails in mkiv

[luigi scarso <luigi.scarso@gmail.com>]

On Mon, Feb 23, 2009 at 5:52 PM, Wolfgang Schuster
<schuster.wolfgang@googlemail.com> wrote:
>
> Am 23.02.2009 um 17:21 schrieb Mojca Miklavec:
>
>> Hello,
>>
>> I did not try to analyze how the following macros work (they are too
>> complex), but they somehow fail in mkiv. (I don't need the "F"
>> kerning, so that portion of code may go away, but the macro itself is
>> very very handy.)
>>
>> All I want is to have a macro that "converts" _{...} into \low{...}
>> and ^{...} into \high{...} (or possibly enable using both at the same
>> time).
>
> \startluacode
>
> thirddata = thirddata or { }
>
> function thirddata.molecule(text)
>    text = string.gsub(text,"_","\\low")
>    text = string.gsub(text,"%^","\\high")
>    tex.sprint(text)
> end
>
> \stopluacode
>
> \def\molecule#1{\ctxlua{thirddata.molecule('#1')}}
hmm
Isn't better to remember original \molecule ?
I mean, something like
\let\ORIGINALmolecule\molecule
\def\molecule#1{\ctxlua{thirddata.molecule('#1')}}

Sometimes in some contexts ORGINAL works and modified no, and you
haven't time to
find why .
-- 
luigi
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