[git commit] sed: fix append command to match GNU sed 4.2.1
Denys Vlasenko
vda.linux at googlemail.com
Fri May 6 16:25:56 UTC 2016
commit: https://git.busybox.net/busybox/commit/?id=f2559e5c2b7bd2c5fa0dd8e88d0a931da92a23af
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master
This closes one testcase failure
Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
editors/sed.c | 29 +++++++++++++++++++----------
testsuite/sed.tests | 6 ++++--
2 files changed, 23 insertions(+), 12 deletions(-)
diff --git a/editors/sed.c b/editors/sed.c
index 7f18fd0..f37c37d 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -956,13 +956,22 @@ static void puts_maybe_newline(char *s, FILE *file, char *last_puts_char, char l
*last_puts_char = lpc;
}
-static void flush_append(char *last_puts_char, char last_gets_char)
+static void flush_append(char *last_puts_char)
{
char *data;
/* Output appended lines. */
- while ((data = (char *)llist_pop(&G.append_head))) {
- puts_maybe_newline(data, G.nonstdout, last_puts_char, last_gets_char);
+ while ((data = (char *)llist_pop(&G.append_head)) != NULL) {
+ /* Append command does not respect "nonterminated-ness"
+ * of last line. Try this:
+ * $ echo -n "woot" | sed -e '/woot/a woo' -
+ * woot
+ * woo
+ * (both lines are terminated with \n)
+ * Therefore we do not propagate "last_gets_char" here,
+ * pass '\n' instead:
+ */
+ puts_maybe_newline(data, G.nonstdout, last_puts_char, '\n');
free(data);
}
}
@@ -970,13 +979,13 @@ static void flush_append(char *last_puts_char, char last_gets_char)
/* Get next line of input from G.input_file_list, flushing append buffer and
* noting if we ran out of files without a newline on the last line we read.
*/
-static char *get_next_line(char *gets_char, char *last_puts_char, char last_gets_char)
+static char *get_next_line(char *gets_char, char *last_puts_char)
{
char *temp = NULL;
int len;
char gc;
- flush_append(last_puts_char, last_gets_char);
+ flush_append(last_puts_char);
/* will be returned if last line in the file
* doesn't end with either '\n' or '\0' */
@@ -1054,7 +1063,7 @@ static void process_files(void)
int substituted;
/* Prime the pump */
- next_line = get_next_line(&next_gets_char, &last_puts_char, '\n' /*last_gets_char*/);
+ next_line = get_next_line(&next_gets_char, &last_puts_char);
/* Go through every line in each file */
again:
@@ -1068,7 +1077,7 @@ static void process_files(void)
/* Read one line in advance so we can act on the last line,
* the '$' address */
- next_line = get_next_line(&next_gets_char, &last_puts_char, last_gets_char);
+ next_line = get_next_line(&next_gets_char, &last_puts_char);
linenum++;
/* For every line, go through all the commands */
@@ -1295,7 +1304,7 @@ static void process_files(void)
free(pattern_space);
pattern_space = next_line;
last_gets_char = next_gets_char;
- next_line = get_next_line(&next_gets_char, &last_puts_char, last_gets_char);
+ next_line = get_next_line(&next_gets_char, &last_puts_char);
substituted = 0;
linenum++;
break;
@@ -1331,7 +1340,7 @@ static void process_files(void)
pattern_space[len] = '\n';
strcpy(pattern_space + len+1, next_line);
last_gets_char = next_gets_char;
- next_line = get_next_line(&next_gets_char, &last_puts_char, last_gets_char);
+ next_line = get_next_line(&next_gets_char, &last_puts_char);
linenum++;
break;
}
@@ -1435,7 +1444,7 @@ static void process_files(void)
/* Delete and such jump here. */
discard_line:
- flush_append(&last_puts_char, last_gets_char);
+ flush_append(&last_puts_char /*,last_gets_char*/);
free(pattern_space);
goto again;
diff --git a/testsuite/sed.tests b/testsuite/sed.tests
index c4b6fa2..a71f8b1 100755
--- a/testsuite/sed.tests
+++ b/testsuite/sed.tests
@@ -135,10 +135,12 @@ testing "sed empty file plus cat" "sed -e 's/nohit//' input -" "one\ntwo" \
"" "one\ntwo"
testing "sed cat plus empty file" "sed -e 's/nohit//' input -" "one\ntwo" \
"one\ntwo" ""
-test x"$SKIP_KNOWN_BUGS" = x"" && {
testing "sed append autoinserts newline" "sed -e '/woot/a woo' -" \
"woot\nwoo\n" "" "woot"
-}
+testing "sed append autoinserts newline 2" "sed -e '/oot/a woo' - input" \
+ "woot\nwoo\nboot\nwoo\n" "boot" "woot"
+testing "sed append autoinserts newline 3" "sed -e '/oot/a woo' -i input && cat input" \
+ "boot\nwoo\n" "boot" ""
testing "sed insert doesn't autoinsert newline" "sed -e '/woot/i woo' -" \
"woo\nwoot" "" "woot"
testing "sed print autoinsert newlines" "sed -e 'p' -" "one\none" "" "one"
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