Slide 5.1: Fundamental file processing demonstrations

Fundamental File Processing Demonstrations

The following interface is the main interface for demonstrating the data input and listing. This interface provides the following major functions:

Deletes all book information.
Enters book information into a file named books.txt .
Lists book information of a specified ISBN or list all book information with titles sorted alphabetically.
Displays code if the correct password is entered.

Select an Option to Use the System.
	Clear `books.txt` Enter books List books
Password:

The following HTML script is for the top part of this interface:

~wenchen/public_html/cgi-bin/351/week5/FPDemo.html

<form method="post"
   action="http://people.cs.und.edu/~wenchen/cgi-bin/351/week5/FPDemo.pl">
 <table>
  <tr><th colspan="3">Select an Option to Use the System.</th></tr>
  <tr>
   <td>
    <input type="radio" name="select" value="clear"> Clear books.txt
    <input type="radio" name="select" value="enter" checked> Enter books
    <input type="radio" name="select" value="list"> List books
   </td>
   <td>
    <input type="submit" name="act" value="Submit">
    <input type="submit" name="act" value="Help">
   </td>
  </tr>
 </table>
</form>