Mercurial > vim

comparison src/ex_cmds.c @ 18408:50c0a9fb07ae v8.1.2198

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
comparison
equal deleted inserted replaced
18407:3f9986aeb41a 18408:50c0a9fb07ae
249 char_u *first; 249 char_u *first;
250 char_u *last; 250 char_u *last;
251 int save; 251 int save;
252 int len; 252 int len;
253 253
254 /* find the first non-blank character */ 254 // Get the line. If it's empty bail out early (could be the empty string
255 // for an unloaded buffer).
255 line = ml_get_curline(); 256 line = ml_get_curline();
257 if (*line == NUL)
258 return 0;
259
260 // find the first non-blank character
256 first = skipwhite(line); 261 first = skipwhite(line);
257 262
258 /* find the character after the last non-blank character */ 263 // find the character after the last non-blank character
259 for (last = first + STRLEN(first); 264 for (last = first + STRLEN(first);
260 last > first && VIM_ISWHITE(last[-1]); --last) 265 last > first && VIM_ISWHITE(last[-1]); --last)
261 ; 266 ;
262 save = *last; 267 save = *last;
263 *last = NUL; 268 *last = NUL;
264 len = linetabsize(line); /* get line length */ 269 len = linetabsize(line); // get line length
265 if (has_tab != NULL) /* check for embedded TAB */ 270 if (has_tab != NULL) // check for embedded TAB
266 *has_tab = (vim_strchr(first, TAB) != NULL); 271 *has_tab = (vim_strchr(first, TAB) != NULL);
267 *last = save; 272 *last = save;
268 273
269 return len; 274 return len;
270 } 275 }