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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