On Fri, 22 Jun 2018 01:43:56 -0700, Ethan Furman wrote: >> You say in a followup that you don't need to worry about digit grouping >> marks (like thousands separators) so I'm not sure what the problem is. >> Can't you just replace ',' with '.' a proceed as if you had only one >> representation? > > I could, and that would work right up until a third decimal separator > was found. I'd like to solve the problem just once if possible.
I don't know of any already existing solution, but there's only a limited number of decimal separators in common use around the world. There's probably nothing you can do ahead of time if somebody decides to start using (say) 5 as a decimal separator within Hindi numerals, except cry, but you can probably start by transforming all of the following into decimal points: - interpuct (middle dot) · U+00B7 - comma , - Arabic decimal separator ٫ U+066B https://en.wikipedia.org/wiki/Decimal_separator Those three cover pretty much the whole world, using Hindu-Arabic numerals (1234...) and Eastern Arabic numerals (what the Arabs and Persians use). Other numeral systems seem to have either adopted Arabic numerals, or introduced the decimal point/comma into their own numeral system, or just don't use a decimal place value system. Either way, I expect that the period . plus the three above will cover anything you are likely to find in real data. -- Steven D'Aprano "Ever since I learned about confirmation bias, I've been seeing it everywhere." -- Jon Ronson -- https://mail.python.org/mailman/listinfo/python-list
