53 lines
1.4 KiB
Diff
53 lines
1.4 KiB
Diff
From 2a585c85013be22f59f184d49612074fd9b115d7 Mon Sep 17 00:00:00 2001
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From: Bram Moolenaar <Bram@vim.org>
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Date: Wed, 25 May 2022 15:15:38 +0100
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Subject: [PATCH] patch 8.2.5016: access before start of text with a put
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command
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Problem: Access before start of text with a put command.
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Solution: Check the length is more than zero.
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---
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src/register.c | 7 +++++--
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src/testdir/test_put.vim | 9 +++++++++
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2 files changed, 14 insertions(+), 2 deletions(-)
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diff --git a/src/register.c b/src/register.c
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index 7f77ada..87689f7 100644
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--- a/src/register.c
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+++ b/src/register.c
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@@ -2078,9 +2078,12 @@ error:
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len = STRLEN(y_array[y_size - 1]);
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col = (colnr_T)len - lendiff;
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if (col > 1)
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- curbuf->b_op_end.col = col - 1
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- - mb_head_off(y_array[y_size - 1],
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+ {
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+ curbuf->b_op_end.col = col - 1;
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+ if (len > 0)
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+ curbuf->b_op_end.col -= mb_head_off(y_array[y_size - 1],
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y_array[y_size - 1] + len - 1);
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+ }
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else
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curbuf->b_op_end.col = 0;
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diff --git a/src/testdir/test_put.vim b/src/testdir/test_put.vim
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index 07f6387..6df04cf 100644
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--- a/src/testdir/test_put.vim
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+++ b/src/testdir/test_put.vim
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@@ -143,3 +143,12 @@ func Test_multibyte_op_end_mark()
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bwipe!
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endfunc
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+" this was putting a mark before the start of a line
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+func Test_put_empty_register()
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+ new
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+ norm yy
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+ norm [Pi00ggv)s0
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+ sil! norm [P
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+ bwipe!
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+endfunc
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+
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--
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1.8.3.1
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