Parsing a file with different groupings!

Question

I need to parse a file. The file looks like this.
ABC45     CLIENT-90      MY COMPANY-0333    STOCK  VS POSITIONS      DATE
......n number of records here
ABC45     CLIENT-90      MY COMPANY-0897    STOCK VS POSITIONS       DATE
.....n number of records here
ABC 45    CLIENT-90      MY COMPANY-0333     STOCK VS POSITIONS       DATE
....n number of records here
ABC 45    CLIENT-90      MY COMPANY-0367     STOCK VS POSITIONS       DATE
....n number of records hereI need to get all the records under say "MY COMPANY-0333" and parse them further and output to a text file. How can I do that?
Thanks

Answer 1

You have header and detail records, I suppose. Let's call them that. Pseudocode:boolean rightStuff = false;
for each record:
  if it's a header record:
    if it has MY COMPANY-0333 in the right place then rightStuff = true else rightStuff = false
  if it's a detail record:
    if rightStuff then process it and write to the filePC²