Re: [Gretl-devel] @-based string substitution and 'foreign'

Dear Sve, I subscribe! Do you know other uses but for slots in S4-classes? :-( Oleh 10 лютого 2017, 09:28:41, від "Sven Schreiber" <svetosch(a)gmx.net&gt;: > Am 10.02.2017 um 02:16 schrieb Allin Cottrell: > > On Thu, 9 Feb 2017, oleg_komashko(a)ukr.net wrote: > > > >> Gretl have a finite number of foreign interfaces May be, a decent > >> solution is in making the use of '@' foreign language-specific (or, > >> python-specific) With R it is a luxurous feature: it makes transfer of > >> non-series data very convinient I'd prefer for changes to be specific > >> and not to remove this possibility from foreign R. > > > > OK, we won't make any precipitate changes, and it may make sense to > > treat different "foreign" languages differently. (We already handle > > python specially on account of its idiosyncratic treatment of white > > space as syntactically significant.) > > > > But could you elaborate on how string substitution is convenient in > > relation to R? (Maybe we could recommend an alternative approach, or > > maybe not.) > > I'm leaning more and more towards the position that unconditional > substitution would either have to be banned in 'foreign' or should be > user configurable (as in "foreign language=R --strsubst=on"). > > Because I have verified that the "@" character also has its own meaning > in R: > > https://stat.ethz.ch/R-manual/R-devel/library/methods/html/slot.html > > So if a script author requests string substitution for a foreign block, > it would be her/his responsibility to avoid such ambiguities. It could > also be useful to have this choice on a block-per-block basis and not > for the entire script (as the above suggestion would ensure). > > > thanks, > sven > _______________________________________________ > Gretl-devel mailing list > Gretl-devel(a)lists.wfu.edu > http://lists.wfu.edu/mailman/listinfo/gretl-devel