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Re^5: character replace

by Corion (Patriarch)
on Jun 02, 2009 at 12:47 UTC ( [id://767579]=note: print w/replies, xml ) Need Help??

in reply to Re^4: character replace
in thread character replace

Maybe it would be a good exercise to go through the code you've posted and to explain what every line is supposed to do. Especially the intention of these two parts is important:

open FH,'ent.txt'; @data=<FH>;

What does @data contain? Is data a good name for that?

foreach $dat(@data){ $text =~ s/&/&amp;/g;
  1. Why are you iterating over @data?
  2. What does change in the loop code for each iteration?
  3. How does the code in the loop reflect the rules you set up for when to replace & with &amp;?

What is the output you see, and what is the output you expect. How does the output you expect relate to the rules you've set up for when to replace &?

In answering these questions to yourself, you will find the steps you need to take to modify your program from a collection of lines into something that does what you want.

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