> So for the track definition, using a lexer package would be better > than using regex in python, right?
they are similar. a lexer is really just a library that packages regular expressions in a certain way. so you could write your own code and you would really be writing a simple lexer. the advantage of writing your own code is that it will be easier to modify and you will get more experience with regular expressions. the advantage of using a library (a lexer) is that it has already been tested by other people, it is already packaged and so your code will be better structured, and it may have features (perhaps logging, or handling of quoted strings, for example) that will save you some work in the future. andrew -- http://mail.python.org/mailman/listinfo/python-list
