Author: pfg
Date: Fri Nov 4 20:49:59 2016
New Revision: 308314
URL: https://svnweb.freebsd.org/changeset/base/308314
Log:
sed(1): add LEGACY_BSDSED_COMPAT compile-time flag.
In r297602, which included a __FreeBSD_version bump to 1100105, we changed
sed 'i' and 'a' from discarding whitespaces to conform with what GNU and
sysvish sed do.
There are arguments in favor of keeping the old behavior but the new
behavior is also useful for migration purposes. It seems important to at
least consider the case of developers depending on the previous behavior,
so add a CFLAG to enable the old behaviour.
PR: 213474
MFC after: 5 days
Modified:
head/usr.bin/sed/compile.c
Modified: head/usr.bin/sed/compile.c
==============================================================================
--- head/usr.bin/sed/compile.c Fri Nov 4 20:38:26 2016 (r308313)
+++ head/usr.bin/sed/compile.c Fri Nov 4 20:49:59 2016 (r308314)
@@ -746,6 +746,9 @@ compile_text(void)
while (cu_fgets(lbuf, sizeof(lbuf), NULL) != NULL) {
op = s = text + size;
p = lbuf;
+#ifdef LEGACY_BSDSED_COMPAT
+ EATSPACE();
+#endif
for (esc_nl = 0; *p != '\0'; p++) {
if (*p == '\\' && p[1] != '\0' && *++p == '\n')
esc_nl = 1;
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