C Programming Assignment: Line Editor Implementation

The assignment requires two C programs: testing.c that contains three required functions and a main function to test each function, and editor.c that uses these functions to implement a line editor. The marks will be roughly 25% from testing.c and 75% from editor.c, with 40% of the mark coming from automated testing, and the rest from TA grading. Bonus marks are available for implementing additional features in the editor.

Deliverables
There are two different programs to submit for this assignment:
1. A c program called testing.c that contains the three required
functions and a main function that methodically tests each of the
three functions. testing.c should require no user input to run.
2. A c program called editor.c that uses the functions to
implement a line editor as described in the previous text.
Marks breakdown summary
• The marks will be roughly 25% from testing.c and 75% from
editor.c
• Marks are given primarily for correctness and correct use of
coding constructs.
• You will lose marks for inconsistent indentation, variable names,
brace placement, wrong file name, poor code readability,
etc.
• You will lose marks if you do not use loops, switches, if/else, etc
properly and effectively.
• Do not use global variables or goto statements
• You will lose marks if you submit an overly complicated
algorithm as a solution. This program does not require
extremely complicated algorithms.
More Details about marking
• 40% of the mark comes from automated testing
◦ running styleCheck/cpplint (files attached so you can try it)
▪ lose up to 10 marks for errors in style check
▪ type "python styleCheck.py" after putting both files in the same
directory as your source code
◦ zero in this section if the file name is incorrect
◦ tests compilation and warnings
▪ -10 marks for each warning, 0 on assignment if it doesn't
compile
◦ 40 pts automated tests of required functions
• 60% of the marks come from TA grading
◦ 15 pts correct editor functionality
◦ 15 pts program design
▪ suitability of algorithms

▪ correct and effective use of loops, arrays, if/else, switch, etc
▪ appropriate use of three required functions
◦ 10 pts appropriate comments, including header comment in file
and comments before each function
◦ 20 pts completeness of test cases in testing.c
◦
For Bonus Marks (on the assignment):
This material will likely not be taught in time for the assignment
due date. You will have to read ahead if you want to try for bonus
marks.
The editor takes a filename on the command line using argv/argc,
opens the file for reading/writing, and load its contents, if any, into
the 5 lines of the editor. Edits are then written back to the file
when the editor is exited.