From 9d73a0d1128f8237eef2d4bf475496d4db081df2 Mon Sep 17 00:00:00 2001
From: Mike Trinkala
Date: Thu, 9 Feb 2023 06:28:33 -0800
Subject: Fix the infinite loop when copying the cursor to the top of the file
 (#5888)

Example:
```
test
testitem
```

Select line 2 with x, then type Alt-C; Helix will go into an infinite
loop. The saturating_sub keeps the head_row and anchor_row pinned at 0,
and a selection is never made since the first line is too short.---
 helix-term/src/commands.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'helix-term/src/commands.rs')

diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index e6cbed2c..d7d87b5a 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -1617,6 +1617,10 @@ fn copy_selection_on_line(cx: &mut Context, direction: Direction) {
                 sels += 1;
             }
 
+            if anchor_row == 0 && head_row == 0 {
+                break;
+            }
+
             i += 1;
         }
     }
-- 
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