changeset 4879 | da8640113b5a |
parent 4868 | 192cd95c2ba8 |
parent 4877 | 242026115e6a |
child 4888 | 2d545b98a7bc |
--- a/mercurial/commands.py +++ b/mercurial/commands.py @@ -1107,7 +1107,11 @@ def grep(ui, repo, pattern, *pats, **opt reflags = 0 if opts['ignore_case']: reflags |= re.I - regexp = re.compile(pattern, reflags) + try: + regexp = re.compile(pattern, reflags) + except Exception, inst: + ui.warn(_("grep: invalid match pattern: %s!\n") % inst) + return None sep, eol = ':', '\n' if opts['print0']: sep = eol = '\0'