Yes, sure ++. And the first link I posted is the start page for the entire HOP download. But I pointed especially to chapter 8, Parsing, because of the general subject, parsing, because of the lexer examples and because of the calculator example, which goes a long way toward solving the OP problem. And also because I think this chapter can, to a large extent, be read without having read the previous chapters.

Having said that, I would really recommend reading the entire book, one of the best books about CS I've read in the last decade, it has definitely changed my way of programming, even in other languages than Perl. And BTW, I first read it on-line, but I quickly decided to buy a dead-tree version, it is really worth the money.

Je suis Charlie.

In reply to Re^3: How would you solve a user-inputted simple one-variable Linear Equation by Laurent_R
in thread How would you solve a user-inputted simple one-variable Linear Equation by nat47

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