How to extract specific columns/line items from a CSV file?

Richard Gaskin ambassador at fourthworld.com
Tue Sep 20 17:42:54 EDT 2016


Keith Clarke wrote:

 > It’s interesting that the url container can be addressed directly,
 > instead of loading the file

   get url ("file:"& tFile)

...does the same as:

   open file tFile for read
   read from file until EOF
   close file tFile

It's just more convenient than using the three-line method (which can be 
very useful if you need for fine-grained control over the read, such as 
reading in chunks or from a particular offset).

Unless your files are much bigger than 100 MBs you should find loading 
them into memory well worth the effort for the time saved parsing them thee.

-- 
  Richard Gaskin
  Fourth World Systems
  Software Design and Development for the Desktop, Mobile, and the Web
  ____________________________________________________________________
  Ambassador at FourthWorld.com                http://www.FourthWorld.com




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