Date: Tue, 7 Aug 2018 14:47:39 +0000 (UTC) From: "Pedro F. Giffuni" <pfg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r337419 - head/usr.bin/sed Message-ID: <201808071447.w77Eld3I069906@repo.freebsd.org>
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Author: pfg Date: Tue Aug 7 14:47:39 2018 New Revision: 337419 URL: https://svnweb.freebsd.org/changeset/base/337419 Log: sed(1): partial fix for the case of the regex delimited with '['. We don't generally support the weird case of regular expresions delimited by an opening square bracket ('[') but POSIX says that inside bracket expressions, escaping is not possible and both '[' and '\' represent themselves. PR: 230198 (exp-run) Obtained from: OpenBSD Modified: head/usr.bin/sed/compile.c Modified: head/usr.bin/sed/compile.c ============================================================================== --- head/usr.bin/sed/compile.c Tue Aug 7 14:39:00 2018 (r337418) +++ head/usr.bin/sed/compile.c Tue Aug 7 14:47:39 2018 (r337419) @@ -393,11 +393,11 @@ compile_delimited(char *p, char *d, int is_tr) if ((d = compile_ccl(&p, d)) == NULL) errx(1, "%lu: %s: unbalanced brackets ([])", linenum, fname); continue; + } else if (*p == '\\' && p[1] == c) { + p++; } else if (*p == '\\' && p[1] == '[') { *d++ = *p++; - } else if (*p == '\\' && p[1] == c) - p++; - else if (*p == '\\' && p[1] == 'n') { + } else if (*p == '\\' && p[1] == 'n') { *d++ = '\n'; p += 2; continue;
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