Projects

Jed is my own version of jed, currently written in java.

Ticalcprograms are a set of small programs written in C for the TI-84 Pluse CE graphing calculator.

I'm Jacob McDonnell. I have been interested in computers since I was young. My father has been in the technology field since before I was born, so I guess that interest came from him.

My interests, with respect to computers, are programming, UNIX/Plan9, and electronics/hardware. I know how to program in Java thanks to a high school course, and I like the language for somethings. Currently I am learning the C programming language with the hopes to write my own operating system one day. In my free time I like to play basketball, row, practice German and Russian, and play guitar.

I do not know what I will do with this website just yet, maybe I will write articles about projects that I am working on.

+				
+#include 
+
+int
+main(void) {
+	printf("hello world\n");
+	return 0;
+}
+				
+

JED - Jacob's ed

Jed is a line mode text editor written in Java. It is similar to ed but not a clone, infact the commands are changed. It currently works but has much room for improvement.

Commands


+Jed commands:
+
+q: quits.
+
+w: writes the file.
+
+w: filename: writes with inputted name.
+
+o: filename: opens the file.
+
+a: appends user input to the end of the file.
+
+A: appends user input after the current line.
+
+p: prints the file.
+
+n: prints the file with line numbers.
+
+c: deletes and changes the current line.
+
+d: deletes the current line.
+
+Any integer: changes to that line number.
+
+g/expression/: finds and prints the expression.
+
+%s/expression/newExpression/: replaces an expression
+with new user input through the whole file.
+
+<integer, integer>: prefix works with d
+and s/ex/nex/ for a range of line.
+
+s/expression/newExpression/: replaces an
+expression with new user input in the current line.
+
+h: prints the commands and their description.
+

Building Jed


+make
+sudo cp jed /usr/bin/jed && sudo cp jed.jar /usr/bin/jed.jar
+

TODO

Add Regex support
check and rewrite poorly written functions

Test of Equations

+ +