Processing an Order

  (Note that even if you are not doing the bonus part, you will need to read the product file as in the form generation stage.) A valid order should be appended to a file called orders.dat. An order consists of several lines written out to the file with the following format:

{name}
{street-address}
{city}:{state}:{zip-code}
{intended-use}
{username}
{encrypted-password}
{order-line-1}
...
{order-line-n}
%%

Notice that city, state, and zip code are separated by colons. Intended use is either Commercial or Noncommercial. You can encrypt the password by calling the Perl builtin function crypt. Use the text to be encrypted as the first argument, and pass the string "bx" as the second. A person's order ends with two percent signs. An order line is of the following form:

{product-code}:{quantity}

The script should then generate a page containing a purchase summary for the user. The <TITLE> of the page should be Order Summary for {name} where {name} is the name input by the user. It should have the following format:

• A <H1> heading Order Summary for {name} where {name} is the name input by the user.
• A horizontal rule (<HR>).
• A <H2> heading that reads Contact Information:.
• An appropriate label in bold and the user's street address.
• The user's city, state, and zip code with appropriate bold labels on the same line.
• A horizontal rule (<HR>).
• A <H2> heading that reads Other Information:.
• An appropriate label in bold and the user's intended use for the software.
• An appropriate label in bold and the user's username.
• The text Password successfully logged. in bold.
• A horizontal rule (<HR>).
• A <H2> heading that reads Purchase Information:.
• One or more lines indicating the items ordered. Each line should consist of the product name, the quantity, and the item's price (commercial or noncommercial) with appropriate bold labels.
• An appropriate label and the total number of items ordered.
• An appropriate label and the total due. Note that total due is computed based on the number of items ordered and the price of each item (either commercial or noncommercial based on the intended use of the software).