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fix crash we can get with horizontal tabs off the end of the screen

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This commit is contained in:
Mitchell Hashimoto
2022-07-24 16:33:57 -07:00
parent 5c8c9d8e3c
commit d81bb19af6
1 changed files with 8 additions and 2 deletions
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10
src/terminal/Terminal.zig
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@ -665,7 +665,7 @@ pub fn horizontalTab(self: *Terminal) !void {
const tracy = trace(@src());
defer tracy.end();
while (self.screen.cursor.x < self.cols) {
while (self.screen.cursor.x < self.cols - 1) {
// Move the cursor right
self.screen.cursor.x += 1;
@ -1055,7 +1055,7 @@ test "Terminal: backspace" {
test "Terminal: horizontal tabs" {
const alloc = testing.allocator;
var t = try init(alloc, 80, 5);
var t = try init(alloc, 20, 5);
defer t.deinit(alloc);
// HT
@ -1066,6 +1066,12 @@ test "Terminal: horizontal tabs" {
// HT
try t.horizontalTab();
try testing.expectEqual(@as(usize, 15), t.screen.cursor.x);
// HT at the end
try t.horizontalTab();
try testing.expectEqual(@as(usize, 19), t.screen.cursor.x);
try t.horizontalTab();
try testing.expectEqual(@as(usize, 19), t.screen.cursor.x);
}
test "Terminal: setCursorPosition" {