add some terminal helpers

src/terminfo.zig

@@ -188,10 +188,44 @@ bools: std.StringHashMap(bool),
 ints: std.StringHashMap(u32),
 strings: std.StringHashMap([]const u8),
 
+// TODO: move these to a single function taking a tuple for the args
+
+pub fn clearScreen(self: *Self, writer: anytype) !void {
+    try writer.writeAll(self.strings.get("clear") orelse "\x1b[H\x1b[2J");
+}
+
+pub fn clearToLineBegin(self: *Self, writer: anytype) !void {
+    try writer.writeAll(self.strings.get("el1") orelse "\x1b[1K");
+}
+
+pub fn clearToLineEnd(self: *Self, writer: anytype) !void {
+    try writer.writeAll(self.strings.get("el") orelse "\x1b[K");
+}
+
+pub fn clearToScreenEnd(self: *Self, writer: anytype) !void {
+    try writer.writeAll(self.strings.get("ed") orelse "\x1b[J");
+}
+
+pub fn cursorHome(self: *Self, writer: anytype) !void {
+    try writer.writeAll(self.strings.get("home") orelse "\x1b[H");
+}
+
+pub fn cursorDown(self: *Self, writer: anytype) !void {
+    try writer.writeAll(self.strings.get("cud1") orelse "\n");
+}
+
 pub fn cursorLeft(self: *Self, writer: anytype) !void {
     try writer.writeAll(self.strings.get("cub1") orelse "\x08");
 }
 
+pub fn cursorRight(self: *Self, writer: anytype) !void {
+    try writer.writeAll(self.strings.get("cuf1") orelse "\x1b[C");
+}
+
+pub fn cursorUp(self: *Self, writer: anytype) !void {
+    try writer.writeAll(self.strings.get("cuu1") orelse "\x1b[A");
+}
+
 // pub const Sequence = struct {
 //     info: *Self,
 //     bytes: std.ArrayList(u8),