1 files changed, 127 insertions, 0 deletions
diff --git a/jet2.cpp b/jet2.cpp
new file mode 100644
index 0000000..c00042a
--- /dev/null
+++ b/jet2.cpp
@@ -0,0 +1,127 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <locale.h>
+#include <curses.h>
+#include "page.cpp"
+#include "point.cpp"
+#include "buffer.cpp"
+
+#define NORMAL_MODE 0
+#define INSERT_MODE 1
+#define pos(x, y) (x) + (y) * window_width
+
+int main(int argc, char *argv[]) {
+	initscr();
+	cbreak();
+	noecho();
+	intrflush(stdscr, FALSE);
+	keypad(stdscr, TRUE);
+
+	if (argc > 1) {
+		buffer.read(argv[1]);
+	}
+
+	int window_height, window_width;
+	getmaxyx(stdscr, window_height, window_width);
+
+	int *view = new int[window_width * window_height];
+	for (int i = 0; i < window_width * window_height; view[i++] = 0);
+
+	int mode = NORMAL_MODE;
+
+	int quit = 0;
+	while (!quit) {
+		clear();
+
+		Point window_end(window_start);
+		int x = -1, y = -1;
+		for (int i = 0; i < window_height; i++) {
+			for (int j = 0; j < window_width; j++) {
+				if (window_end == cursor) {
+					x = j;
+					y = i;
+				}
+				view[pos(j, i)] = window_end.element();
+				if (window_end.element() == '\n') {
+					for (int k = j + 1; k < window_width; k++) {
+						view[pos(k, i)] = 0;
+					}
+					j = window_width;
+				} else if (window_end.element() == '\t') {
+					for (int k = j + 1; k < j + 8; k++) {
+						view[pos(k, i)] = 0;
+					}
+					j = j + 7;
+				}
+				window_end++;
+			}
+		}
+		for (int i = 0; i < window_width * window_height; i++) {
+			printw("%lc", view[i]);
+		}
+		if (x != -1 && y != -1) {
+			move(y, x);
+		}
+
+		int input = getch();
+		if (byte_type(input) == 1) {
+			if (mode == NORMAL_MODE) {
+				switch (input) {
+					case '':
+						quit = 1;
+						break;
+					case 'i':
+						mode = INSERT_MODE;
+						break;
+					case 'j':
+						for (int i = pos(x, y); i < pos(x + 1, y + 1); i++) {
+							if (view[i]) cursor++;
+						}
+						cursor--;
+						if (y + 1 >= window_height) {
+							window_start.seek('\n', window_width - 1);
+							window_start++;
+						}
+						break;
+					case 'k':
+						for (int i = pos(x, y); i > pos(x, y - 1); i--) {
+							if (view[i]) cursor--;
+						}
+						if (y - 1 <= 0) {
+							window_start--;
+							window_start.rseek('\n', window_width - 1);
+						}
+						break;
+					case 'h':
+						cursor--;
+						break;
+					case 'l':
+						cursor++;
+						break;
+				}
+			} else {
+				switch (input) {
+					case '':
+						mode = NORMAL_MODE;
+						break;
+					case KEY_BACKSPACE:
+						cursor.pop();
+						break;
+					default:
+						cursor.push(input);
+				}
+			}
+		} else {
+			cursor.push(input);
+			for (int i = 0; i < byte_type(input) - 1; i++) {
+				cursor.push(getch());
+			}
+		}
+	}
+
+	buffer.write(buffer.name);
+
+	endwin();
+	return 0;
+}