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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2010-05-12 01:49:04 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2010-05-12 01:49:04 +0200 |
| commit | a2215b98f7d65bc613b9c8f008d79672402c6a07 (patch) | |
| tree | a522b707160253cba5805279b871cc33dabc24ce | |
| parent | 94043e8ad2d30cc2199b35d18c853314ade174a3 (diff) | |
| download | busybox-a2215b98f7d65bc613b9c8f008d79672402c6a07.tar.gz | |
sed: fix a command with multible trailing backslashes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | editors/sed.c | 14 | ||||
| -rwxr-xr-x | testsuite/sed.tests | 14 | ||||
| -rw-r--r--[-rwxr-xr-x] | testsuite/testing.sh | 2 |
3 files changed, 23 insertions, 7 deletions
diff --git a/editors/sed.c b/editors/sed.c index 30ab8c9fb..4bd6e0168 100644 --- a/editors/sed.c +++ b/editors/sed.c @@ -487,7 +487,7 @@ static const char *parse_cmd_args(sed_cmd_t *sed_cmd, const char *cmdstr) static void add_cmd(const char *cmdstr) { sed_cmd_t *sed_cmd; - int temp; + unsigned len, n; /* Append this line to any unfinished line from last time. */ if (G.add_cmd_line) { @@ -496,12 +496,14 @@ static void add_cmd(const char *cmdstr) cmdstr = G.add_cmd_line = tp; } - /* If this line ends with backslash, request next line. */ - temp = strlen(cmdstr); - if (temp && cmdstr[--temp] == '\\') { + /* If this line ends with unescaped backslash, request next line. */ + n = len = strlen(cmdstr); + while (n && cmdstr[n-1] == '\\') + n--; + if ((len - n) & 1) { /* if odd number of trailing backslashes */ if (!G.add_cmd_line) G.add_cmd_line = xstrdup(cmdstr); - G.add_cmd_line[temp] = '\0'; + G.add_cmd_line[len-1] = '\0'; return; } @@ -560,7 +562,7 @@ static void add_cmd(const char *cmdstr) /* last part (mandatory) will be a command */ if (!*cmdstr) bb_error_msg_and_die("missing command"); - sed_cmd->cmd = *(cmdstr++); + sed_cmd->cmd = *cmdstr++; cmdstr = parse_cmd_args(sed_cmd, cmdstr); /* Add the command to the command array */ diff --git a/testsuite/sed.tests b/testsuite/sed.tests index b0de9657c..5b0750cac 100755 --- a/testsuite/sed.tests +++ b/testsuite/sed.tests @@ -258,4 +258,18 @@ testing "sed nested {}s" \ "qwe\nasd\nacd\nacd\n" "" \ "qwe\nasd\nzxc\n" +testing "sed a cmd ended by double backslash" \ + "sed -e '/| one /a \\ + | three \\\\' -e '/| one-/a \\ + | three-* \\\\'" \ +' | one \\ + | three \\ + | two \\ +' '' \ +' | one \\ + | two \\ +' + +# testing "description" "arguments" "result" "infile" "stdin" + exit $FAILCOUNT diff --git a/testsuite/testing.sh b/testsuite/testing.sh index 65a0f6529..913d7f8ef 100755..100644 --- a/testsuite/testing.sh +++ b/testsuite/testing.sh @@ -73,7 +73,7 @@ testing() if [ $# -ne 5 ] then - echo "Test $NAME has wrong number of arguments (must be 5) ($# $*)" >&2 + echo "Test $NAME has wrong number of arguments: $# (must be 5)" >&2 exit 1 fi |