*
* MAINTAINER: Rob Landley <rob@landley.net>
*
- * Licensed under GPL version 2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*/
/* Code overview.
#include "libbb.h"
#include "xregex.h"
+enum {
+ OPT_in_place = 1 << 0,
+};
+
/* Each sed command turns into one of these structures. */
typedef struct sed_cmd_s {
/* Ordered by alignment requirements: currently 36 bytes on x86 */
if (matched) {
/* once matched, "n,xxx" range is dead, disabling it */
- if (sed_cmd->beg_line > 0)
+ if (sed_cmd->beg_line > 0
+ && !(option_mask32 & OPT_in_place) /* but not for -i */
+ ) {
sed_cmd->beg_line = -2;
+ }
sed_cmd->in_match = !(
/* has the ending line come, or is this a single address command? */
(sed_cmd->end_line ?
}
/* actual sedding */
+ //bb_error_msg("pattern_space:'%s' next_line:'%s' cmd:%c",
+ //pattern_space, next_line, sed_cmd->cmd);
switch (sed_cmd->cmd) {
/* Print line number */
{
int len;
/* If no next line, jump to end of script and exit. */
+ /* http://www.gnu.org/software/sed/manual/sed.html:
+ * "Most versions of sed exit without printing anything
+ * when the N command is issued on the last line of
+ * a file. GNU sed prints pattern space before exiting
+ * unless of course the -n command switch has been
+ * specified. This choice is by design."
+ */
if (next_line == NULL) {
- free(next_line);
- next_line = NULL;
- goto discard_line;
+ //goto discard_line;
+ goto discard_commands; /* GNU behavior */
}
/* Append next_line, read new next_line. */
len = strlen(pattern_space);
int sed_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int sed_main(int argc UNUSED_PARAM, char **argv)
{
- enum {
- OPT_in_place = 1 << 0,
- };
unsigned opt;
llist_t *opt_e, *opt_f;
int status = EXIT_SUCCESS;
opt_e = opt_f = NULL;
opt_complementary = "e::f::" /* can occur multiple times */
"nn"; /* count -n */
+ /* -i must be first, to match OPT_in_place definition */
opt = getopt32(argv, "irne:f:", &opt_e, &opt_f,
&G.be_quiet); /* counter for -n */
//argc -= optind;