ps2 keyboard making letter string

I am trying to make a very basic ps2 keyboard controller. I want to be able to type in certain words for instance "LEDON" and use that to trigger led's. I was basing this code on the sample ps2 keyboard code.:

#include <PS2Keyboard.h>

const int DataPin = 8;
const int IRQpin = 2;

PS2Keyboard keyboard;

void setup() {
delay(1000);
keyboard.begin(DataPin, IRQpin);
Serial.begin(9600);
Serial.println("Keyboard Test:");
}

void loop() {
if (keyboard.available()) {

// read the next key
char c = keyboard.read();

// check for some of the special keys
if (c == PS2_ENTER) {
Serial.println();
} else if (c == PS2_TAB) {
Serial.print("[Tab]");
} else if (c == PS2_ESC) {
Serial.print("[ESC]");
} else if (c == PS2_PAGEDOWN) {
Serial.print("[PgDn]");
} else if (c == PS2_PAGEUP) {
Serial.print("[PgUp]");
} else if (c == PS2_LEFTARROW) {
Serial.print("");
} else if (c == PS2_RIGHTARROW) {
Serial.print("");
} else if (c == PS2_UPARROW) {
Serial.print("[Up]");
} else if (c == PS2_DOWNARROW) {
Serial.print("[Down]");
} else if (c == PS2_DELETE) {
Serial.print("");
} else {

// otherwise, just print all normal characters
Serial.print(c);
}
}
}
[#include <PS2Keyboard.h>
const int DataPin = 8;
const int IRQpin = 2;
PS2Keyboard keyboard;
void setup() {
delay(1000);
keyboard.begin(DataPin, IRQpin);
Serial.begin(9600);
Serial.println("Keyboard Test:");
}
void loop() {
if (keyboard.available()) {

// read the next key
char c = keyboard.read();

// check for some of the special keys
if (c == PS2_ENTER) {
Serial.println();
} else if (c == PS2_TAB) {
Serial.print("[Tab]");
} else if (c == PS2_ESC) {
Serial.print("[ESC]");
} else if (c == PS2_PAGEDOWN) {
Serial.print("[PgDn]");
} else if (c == PS2_PAGEUP) {
Serial.print("[PgUp]");
} else if (c == PS2_LEFTARROW) {
Serial.print("");
} else if (c == PS2_RIGHTARROW) {
Serial.print("");
} else if (c == PS2_UPARROW) {
Serial.print("[Up]");
} else if (c == PS2_DOWNARROW) {
Serial.print("[Down]");
} else if (c == PS2_DELETE) {
Serial.print("");
} else {

// otherwise, just print all normal characters
Serial.print(c);
}
}
}
I think it is a string that I need to use but I'm not sure exactly how it works. I am a beginner in using the arduino and was just wondering how this is possible to do. I was looking at bits a pieces of tiny basic emulators for the arduino that use this but I'm not sure exactly how to set it up. I have the sample code working if that is helpfull

So, first things first.

Go and read the instructions, then go back and modify your post (use the "More --> Modify" option to the bottom right of the post) to mark up the code as such so we can examine it conveniently and accurately.

Did you notice (did you "preview" it before posting as you should?) it is already garbled and is certainly anything but easy to read.

Note: Also mark up any data in the same way. This includes error output that you get from the IDE.

And - before you post code, use "Auto Format" in the Tools menu to properly present the code.

Try and avoid unnecessary white space (blank lines). You should only use these to separate functional blocks of code.

Until you reply and demonstrate that you understand these points that have been made so far, there is absolutely no point working through the other problems with the code, so I for one will leave it at that for the present.