Assignment 5, cse 9A Fall, 96

DO NOT TURN THIS IN WITH THE turnin PROGRAM BEFORE
     8 AM Sunday, November 10. If you finish before then, just
     wait a while before turning it in. Also, check for
     changes before turning it in.


Deadlines:
For turnin program: midnight at end of day on Friday Nov 15
with the usual penalty: midnight at end of day on Saturday Nov 16
For interviews: End of day Tuesday Nov 19
Do not wait till the last minute. There will not be a
postponement of these deadlines.


Write a program that will compute the average word length
(average number of characters per word) for a file 
containing some text.  A word is defined as any string of 
symbols that is preceeded and followed by any of the 
following (and that does not contain any of the following)
   a white space character
   a period
   a comma
   a question mark
   or an exclamation mark.

Your program should get the file name from the user.

Use functions.

Sample compiled object code is in the file hw05.o
Be sure you notice what the object code does when it
is given the name of a file that does not exist.

Hints:

Getting a resonable definition of functions
for subtasks can be tricky. 
If you cannot do it with functions, you can do it without
functions but will lose some points.

Check for eof often in your program; an eof
at any point normally requires a graceful end of
the program.

This one can be tricky to debug:
Check for off by one errors. Be sure you do not
count one too many or one too few words.
Similarly for numbers of characters.

It may help to work on it, then leave it
and let it get "cold", and then return to it.