1Advanced Perl11-7-20052Opening Discussion■What did we talk about last class?■What did you find interesting in the reading for today?3Simple Databases■The contents of this chapter don't really count as databases, but they are simple ways of storing information and how to modify it.■What are DBM files and how do you interact with them?■How do you do random access files in Perl? Compare this to how you would do it in other languages?■What are some of the issue of dealing with “text databases”? What tools does Perl give you to make this easier?4Advanced Techniques■eval – This is how you do error handling in Perl.■grep and map – These remarkably functional like functions perform standard operations on lists.■Non-greedy Qualifiers – Normally the quantifiers try to match as much of the string as they can and still make a complete match. By putting a ? after them you change their behavior so they match as little as they can while still doing a complete match.■Slices – You can pull multiple items from a list, array, or hash in Perl much the same as you could in Matlab. The method isn't quite as powerful and the syntax is worth noting.5Reminders■Remember to turn in assignment #8
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