Mercurial > vim
diff src/ex_cmds.c @ 18408:50c0a9fb07ae v8.1.2198
patch 8.1.2198: crash when using :center in autocommand
Commit: https://github.com/vim/vim/commit/396b7c78c0fd9cd07528963b18c27398491df40d
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Oct 21 23:08:59 2019 +0200
patch 8.1.2198: crash when using :center in autocommand
Problem: Crash when using :center in autocommand.
Solution: Bail out early for an empty line. (Dominique pelle, closes https://github.com/vim/vim/issues/5095)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Mon, 21 Oct 2019 23:15:03 +0200 |
| parents | ba5d8c5d77d7 |
| children | 967ca19425e3 |
line wrap: on
line diff
--- a/src/ex_cmds.c +++ b/src/ex_cmds.c @@ -251,18 +251,23 @@ linelen(int *has_tab) int save; int len; - /* find the first non-blank character */ + // Get the line. If it's empty bail out early (could be the empty string + // for an unloaded buffer). line = ml_get_curline(); + if (*line == NUL) + return 0; + + // find the first non-blank character first = skipwhite(line); - /* find the character after the last non-blank character */ + // find the character after the last non-blank character for (last = first + STRLEN(first); last > first && VIM_ISWHITE(last[-1]); --last) ; save = *last; *last = NUL; - len = linetabsize(line); /* get line length */ - if (has_tab != NULL) /* check for embedded TAB */ + len = linetabsize(line); // get line length + if (has_tab != NULL) // check for embedded TAB *has_tab = (vim_strchr(first, TAB) != NULL); *last = save;