0704.315 Programming Languages

Due Date

Both Sections: December 10

Submissions by December 7 will be graded by December 10

Form of Submission

Homework can be submitted via email or printout by deadline. Printouts of source code and run transcripts should be included.

Preparation

• Read XML Bible, Chapter 17 ( http://www.ibiblio.org/xml/books/bible2/chapters/ch17.html )

• A note about XML entities that I may not have made explicity in class. As I did state, all XML entities must be closed. So for every <TAG>, there must be a corresponding </TAG>. But, XML entities can self-terminate via the syntax <TAG />.

Assignment

The goal of this assignment is to gain experience with the XSL Transformation (XSLT) language. Your work should be conducted on Elvis, or on your home machine if you are willing and able to install the Saxon XSLT implementation there.

A number of XML and XSL files will be referred to during this assignment. They can be found on Elvis in ~clamen/Public/PL/XSL.

1. As a test, run addresstest.xsl over the addresses.xml sample source. (Both are available off of the web page.) On Elvis, run the following from the shell:

        
   	cd ~clamen/Public/PL/XSL
   	~clamen/bin/saxon addresses.xml addresstest.xsl
   

   You will use the two files as the basis for the next few exercises.

2. Modify addresstest.xsl such that it displays the city, state and country (if available) with each name for each addressbook entry. The output should look something like:

   Names of people in addressbook:
   
    - George W. Bush, Washington, DC, USA
    - Stewart M. Clamen, Glassboro, NJ, USA
    - Osama bin Laden
    - Harry Potter, Little Whinging, England, United Kingdom
   
   (done)  
   

3. Modify your program such that it enumerates the matches, like so (don't worry about getting the spacing exactly right, but include the commas):

    Names of people in addressbook:
   
   1. George W. Bush, Washington, DC, USA
   2. Stewart M. Clamen, Glassboro, NJ, USA
   3. Osama bin Laden
   4. Harry Potter, Little Whinging, England, United Kingdom
   
   (done)  
   

4. Modify your program such that it only returns the American entries, like so:

   Names of people in addressbook:
   
   1. George W. Bush, Washington, DC, USA
   2. Stewart M. Clamen, Glassboro, NJ, USA
   
   (done)  
   

5. Modify your program such that it only returns the entries with a known address , like so:

   Names of people in addressbook:
   
   1. George W. Bush, Washington, DC, USA
   2. Stewart M. Clamen, Glassboro, NJ, USA
   3. Harry Potter, Little Whinging, England, United Kingdom
   
   (done)  
   

6. Look at the XML document database.xml in the Public area. It represents a (short) transaction log for a set of bank accounts. bank.xsl is a program which tabulates the withdrawals for a single account.

   Modify bank.xsl such that it tabulates deposits as well.

7. Modify your program to consider for the initial bank account balance, and include a tabulation of the bank account's balance. It should look something like:

   Bank report for Account #123456:
   
   1 withdrawals totalling $45
   3 deposits totalling $1501.5
   
   Total balance: $4546.62
   
   .
   

   XSL likes to drop off trailing zeroes by default.

8. For bonus points, modify the program such that it says "deposit" ("withdrawal") when the count is 1.