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. > 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: > 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. > 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. > Cheers, > > Hernán Sven
