From 310f71d11f5ce066cec0450bf60036b25b27ab91 Mon Sep 17 00:00:00 2001
From: Uko Kokņevičs
Date: Tue, 20 Feb 2024 00:24:06 +0200
Subject: Fix untab crash

---
 src/Buffer.zig | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/Buffer.zig b/src/Buffer.zig
index 473674c..57ecd20 100644
--- a/src/Buffer.zig
+++ b/src/Buffer.zig
@@ -584,7 +584,11 @@ pub fn unindent(self: *Buffer) !void {
     const desired_rsize = indentation_rsize - 1 - (indentation_rsize - 1) % self.config.tab_stop;
     const desired_size = row.rxToCx(self.config, desired_rsize);
 
-    self.cx -= indentation_size - desired_size;
+    if (self.cx < indentation_size - desired_size) {
+        self.cx = 0;
+    } else {
+        self.cx -= indentation_size - desired_size;
+    }
 
     // TODO: ArrayList needs orderedRemoveNItems
     while (indentation_size > desired_size) : (indentation_size -= 1) {
-- 
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