Hi Sven, 2015-01-23 16:06 GMT-03:00 Sven Van Caekenberghe <s...@stfx.eu>:
> Hi Hernán, > > > On 23 Jan 2015, at 19:50, Hernán Morales Durand < > hernan.mora...@gmail.com> wrote: > > > > I used to use a CSV parser from Squeak where I could attach conditional > iterations: > > > > csvParser rowsSkipFirst: 2 do: [: row | " some action ignoring first 2 > fields on each row " ]. > > csvParser rowsSkipLast: 2 do: [: row | " some action ignoring last 2 > fields on each row " ]. > > With NeoCSVParser you can describe how each field is read and converted, > using the same mechanism you can ignore fields. Have a look at the senders > of #addIgnoredField from the unit tests. > > I am trying to understand the implementation, I see you included #addIgnoredFields: for consecutive fields in Neo-CSV-Core-SvenVanCaekenberghe.21 A question about usage then, adding ignored field(s) requires adding field types on all other remaining fields? > > csvParser rowsWhere: [ " a condition block " ] do: [ : row | " ... " ]. > > NeoCSVParser behaves a bit like a stream and a bit like a collection, > there are #next, #atEnd and #upToEnd as well as #do: and #select: > > I was using the version from the Configuration and missed the #select:[thenDo:] update. > > csvParser rowsUpTo: 500000 do: [ " some action for rows up to 500000 " ]. > > csvParser rowsFrom: 2000 to: 5000 do: [ " some action for rows between > 2000 to 5000 " ]. > > Those are not there, you will have to count yourself. #next can be used to > #skip. > > Ok > > I want to replace the parser with NeoCSVReader, is this easily possible > with the current implementation? > > Should work, let me know if you have any problems. > > Thank you Sven! Cheers, >
