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CSV parsing (large files)
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CSV parsing (large files)


  • Subject: CSV parsing (large files)
  • From: Jacob Bandes-Storch <email@hidden>
  • Date: Tue, 29 Jul 2008 21:55:23 -0700

I've got several large-size CSV files (a total of about 1.25 million lines, and an average of maybe 10 or so columns) that I want to parse into a 2D array. I found some parsing code that uses NSScanner, and it works fine with small files, but it's very resource-intensive and slow with large files. Should I try and optimize it more, or try using C instead of Objective-C for parsing, or what?

The ultimate goal here is to convert the CSV files into a SQLite database. Should I even be doing it this way? Maybe just one row into the database at a time? I'd like to hear people's opinions. Thanks in advance!
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