From f12fb1e4092900f26f7f8c71cde44b1cd7d26439 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Sun, 23 Jan 2022 19:04:27 +0100 Subject: sed: fix handling of escaped delimiters in s/// replacement function old new delta parse_regex_delim 111 140 +29 Signed-off-by: Denys Vlasenko --- editors/sed.c | 5 ++++- testsuite/sed.tests | 9 +++++++-- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/editors/sed.c b/editors/sed.c index 02a527b..32a4b61 100644 --- a/editors/sed.c +++ b/editors/sed.c @@ -355,7 +355,10 @@ static int parse_regex_delim(const char *cmdstr, char **match, char **replace) /* save the replacement string */ cmdstr_ptr += idx + 1; idx = index_of_next_unescaped_regexp_delim(- (int)delimiter, cmdstr_ptr); - *replace = copy_parsing_escapes(cmdstr_ptr, idx, 0); +//GNU sed 4.8: +// echo 789 | sed 's&8&\&&' - 7&9 ("\&" remained "\&") +// echo 789 | sed 's1\(8\)1\1\11' - 7119 ("\1\1" become "11") + *replace = copy_parsing_escapes(cmdstr_ptr, idx, delimiter != '&' ? delimiter : 0); return ((cmdstr_ptr - cmdstr) + idx); } diff --git a/testsuite/sed.tests b/testsuite/sed.tests index 440996a..626542e 100755 --- a/testsuite/sed.tests +++ b/testsuite/sed.tests @@ -329,10 +329,15 @@ testing "sed special char as s/// delimiter, in pattern" \ "sed 's+9\++X+'" \ "X8=17\n" "" "9+8=17\n" -# but in replacement string, "\&" remains "\&", not interpreted as "&" -testing "sed special char as s/// delimiter, in replacement" \ +# Matching GNU sed 4.8: +# in replacement string, "\&" remains "\&", not interpreted as "&" +testing "sed special char as s/// delimiter, in replacement 1" \ "sed 's&9&X\&&'" \ "X&+8=17\n" "" "9+8=17\n" +# in replacement string, "\1" is interpreted as "1" +testing "sed special char as s/// delimiter, in replacement 2" \ + "sed 's1\(9\)1X\11'" \ + "X1+8=17\n" "" "9+8=17\n" testing "sed /\$_in_regex/ should not match newlines, only end-of-line" \ "sed ': testcont; /\\\\$/{ =; N; b testcont }'" \ -- cgit v1.1