Output a big red error when giving numbers that will encounter a floating point error?
Perhaps also provide a # of use limited #expr equivalent that will use a bignum library rather than normal numbers which can be used in cases where that big red error shows up. ~Daniel Friesen (Dantman, Nadir-Seen-Fire) [http://nadir-seen-fire.com] -Nadir-Point (http://nadir-point.com) -Wiki-Tools (http://wiki-tools.com) -MonkeyScript (http://monkeyscript.nadir-point.com) -Animepedia (http://anime.wikia.com) -Narutopedia (http://naruto.wikia.com) -Soul Eater Wiki (http://souleater.wikia.com) Robert Rohde wrote: > On Sat, Jan 31, 2009 at 9:39 PM, Tim Starling <[email protected]> wrote: > >> greg_l_at_wikipedia wrote: >> >>> As I understand it, there is rightfully little interest in the >>> developer community to write a new parser function for every single >>> template need to come along. >>> >>> Therefore, when it comes to a template like {{val}}, which now >>> generates rounding errors about 5–10% of the time because of the math- >>> based parser functions it must use, it would be nice if the template- >>> authoring community could have a character-counting parser function >>> that is not only suitable for {{val}}, but which could be a general - >>> purpose parser function that could be used for a great variety of >>> purposes. >>> >> I would rather have an application-specific number formatting function, >> rather than a character-counting function. It could be similar to PHP's >> number_format(). Wikitext is a terrible programming language, slow to >> execute and hard to understand. It's much better to write in PHP. >> > > We already have {{formatnum:}} with a very limited functionality that > presumably could be extended. > > Though I would like to re-emphasize that Greg's complaint principally > arrises because of floating point round-off errors in #expr that are > difficult for normal editors to predict or plan for, and that should > be addressed irrespective of other work to improve number formatting. > > -Robert Rohde > _______________________________________________ Wikitech-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikitech-l
