Hi Phil, The CSV parser is missing some features that would make it more usable. Also, the code no longer looks idiomatic to me -- maybe a rewrite is in order?
* Take a look at Python's CSV API http://www.python.org/dev/peps/pep-0305/ where they define dialects to be a set of TUPLE: dialect delimiter quote-char escape-char double-quote skip- initial-space line-terminator quoting ; The current CSV parser only allows the delimiter to be changed. * There are multiline fields delimited by the quot-char and I'm not sure we support them: 3,"a long string", more,data * It could autodetect the separator or detect if there is a column header on the first line like Python's Sniffer http://docs.python.org/library/csv.html#csv.Sniffer You might return a tuple with the header line and rows. * For huge CSV files you might want to process it line by line. The most useful word for me is ``file>csv'' because I'm always reading from a file. One approach is to make a word ``stream>csv'' that is used to implement ``file>csv'', ``string>csv'', etc. If you want to make another word that reads from the standard input, that's fine -- what's your use case for it, a header line that you want to read before reading the rest of the lines? Maybe some of the features listed above are overdesign, but as there's no CSV standard, everybody does something slightly different and not supporting a critical feature would make the whole library unusable for a particular file. Doug On May 26, 2009, at 5:58 AM, Phil Dawes wrote: > Hi Factor list, > > Quick question about factor style: > > - Should words taking input use the imput-stream dynamic var by > default? > > I'm thinking of changing my csv vocab to do this instead of taking a > stream since I always use 'with-file-reader'. Is this a good idea? > > Cheers, > > Phil > > > > ------------------------------------------------------------------------------ > Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT > is a gathering of tech-side developers & brand creativity > professionals. Meet > the minds behind Google Creative Lab, Visual Complexity, Processing, & > iPhoneDevCamp asthey present alongside digital heavyweights like > Barbarian > Group, R/GA, & Big Spaceship. http://www.creativitycat.com > _______________________________________________ > Factor-talk mailing list > Factor-talk@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/factor-talk ------------------------------------------------------------------------------ Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. http://p.sf.net/sfu/creativitycat-com _______________________________________________ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
