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From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: re: is there Ada package similar to Matlab textscan?
Date: Fri, 17 Jul 2015 04:25:44 +0000 (UTC)
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Date: 2015-07-17T04:25:44+00:00
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That's a CSV file.  I'm sure there are lots of folks' implementations.
The important part of mine is:

  function Field_Name(Csv_File: Csv_Files;
                      Index   : Field_Counts) return String;
  -- raises Constraint_Error if Index not in 1 .. Header's Field_Count

  function Field_Index(Csv_File:   Csv_Files;
                       Name: String) return Field_Counts;
  -- Ignoring case, find first field whose prefix = Name
  -- returns zero if not found

  procedure Read_A_Record(Csv_File: in out Csv_Files);
  -- May End_Error.
  -- If a record has fewer fields than the header indicated, it's
  -- padded out with null strings.

  function Field_Content(Csv_File: Csv_Files;
                         Index   : Field_Counts) return String;
  -- Raises Use_Error if called before any Read_A_Record.