From b528208dfd13da9460eae69ef10d129184a2230b Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Wed, 11 May 2022 17:55:28 -0700
Subject: [PATCH] hook up delete lines

---
 src/Window.zig          | 4 ++++
 src/terminal/stream.zig | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/src/Window.zig b/src/Window.zig
index 79f865de3..72258d62e 100644
--- a/src/Window.zig
+++ b/src/Window.zig
@@ -561,6 +561,10 @@ pub fn eraseChars(self: *Window, count: usize) !void {
     try self.terminal.eraseChars(count);
 }
 
+pub fn deleteLines(self: *Window, count: usize) !void {
+    self.terminal.deleteLines(self.alloc, count);
+}
+
 pub fn reverseIndex(self: *Window) !void {
     try self.terminal.reverseIndex(self.alloc);
 }
diff --git a/src/terminal/stream.zig b/src/terminal/stream.zig
index 61db9cfa7..011c79d1d 100644
--- a/src/terminal/stream.zig
+++ b/src/terminal/stream.zig
@@ -194,6 +194,14 @@ pub fn Stream(comptime Handler: type) type {
                     },
                 ) else log.warn("unimplemented CSI callback: {}", .{action}),
 
+                // DL - Delete Lines
+                // TODO: test
+                'M' => if (@hasDecl(T, "deleteLines")) switch (action.params.len) {
+                    0 => try self.handler.deleteLines(1),
+                    1 => try self.handler.deleteLines(action.params[0]),
+                    else => log.warn("invalid DL command: {}", .{action}),
+                } else log.warn("unimplemented CSI callback: {}", .{action}),
+
                 // Delete Character (DCH)
                 'P' => if (@hasDecl(T, "deleteChars")) try self.handler.deleteChars(
                     switch (action.params.len) {