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-rw-r--r--src/nvim/ex_cmds.c4
-rw-r--r--src/nvim/globals.h2
-rw-r--r--src/nvim/testdir/test_retab.vim21
3 files changed, 27 insertions, 0 deletions
diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c
index fd1e34803f..f6ef259dbd 100644
--- a/src/nvim/ex_cmds.c
+++ b/src/nvim/ex_cmds.c
@@ -847,6 +847,10 @@ void ex_retab(exarg_T *eap)
break;
}
vcol += win_chartabsize(curwin, ptr + col, (colnr_T)vcol);
+ if (vcol >= MAXCOL) {
+ emsg(_(e_resulting_text_too_long));
+ break;
+ }
col += utfc_ptr2len(ptr + col);
}
if (new_line == NULL) { // out of memory
diff --git a/src/nvim/globals.h b/src/nvim/globals.h
index f6fbe98ff0..98a38c5fe2 100644
--- a/src/nvim/globals.h
+++ b/src/nvim/globals.h
@@ -1000,6 +1000,8 @@ EXTERN char e_non_empty_string_required[] INIT(= N_("E1142: Non-empty string req
EXTERN char e_cannot_define_autocommands_for_all_events[] INIT(= N_("E1155: Cannot define autocommands for ALL events"));
+EXTERN char e_resulting_text_too_long[] INIT(= N_("E1240: Resulting text too long"));
+
EXTERN char e_highlight_group_name_too_long[] INIT(= N_("E1249: Highlight group name too long"));
EXTERN char top_bot_msg[] INIT(= N_("search hit TOP, continuing at BOTTOM"));
diff --git a/src/nvim/testdir/test_retab.vim b/src/nvim/testdir/test_retab.vim
index e7b8946ccf..1650a03876 100644
--- a/src/nvim/testdir/test_retab.vim
+++ b/src/nvim/testdir/test_retab.vim
@@ -69,6 +69,8 @@ func Test_retab()
call assert_equal(" a b c ", Retab('!', 3))
call assert_equal(" a b c ", Retab('', 5))
call assert_equal(" a b c ", Retab('!', 5))
+
+ set tabstop& expandtab&
endfunc
func Test_retab_error()
@@ -78,3 +80,22 @@ func Test_retab_error()
call assert_fails('ret 10000', 'E475:')
call assert_fails('ret 80000000000000000000', 'E475:')
endfunc
+
+func Test_retab_endless()
+ new
+ call setline(1, "\t0\t")
+ let caught = 'no'
+ try
+ while 1
+ set ts=4000
+ retab 4
+ endwhile
+ catch /E1240/
+ let caught = 'yes'
+ endtry
+ bwipe!
+ set tabstop&
+endfunc
+
+
+" vim: shiftwidth=2 sts=2 expandtab