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authorSimon B <sburnet@hotmail.com>2012-05-06 11:59:15 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2012-05-06 12:01:41 (GMT)
commit8c3439554aa6e9da90246955e00b69c690b52794 (patch)
tree690c52e8a1bf551125952482f89280e8164a7cac
parent44642d1ec15edf4a4448085849105ec93fa01ef2 (diff)
downloadbusybox-8c3439554aa6e9da90246955e00b69c690b52794.tar.gz
busybox-8c3439554aa6e9da90246955e00b69c690b52794.tar.bz2
sed: support long opts and -iSFX
function old new delta static.sed_longopts - 67 +67 sed_main 618 682 +64 packed_usage 29179 29236 +57 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/0 up/down: 188/0) Total: 188 bytes Signed-off-by: Simon B <sburnet@hotmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--editors/sed.c33
1 files changed, 28 insertions, 5 deletions
diff --git a/editors/sed.c b/editors/sed.c
index 3ee8edc..a2df931 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -62,7 +62,8 @@
//usage:#define sed_full_usage "\n\n"
//usage: " -e CMD Add CMD to sed commands to be executed"
//usage: "\n -f FILE Add FILE contents to sed commands to be executed"
-//usage: "\n -i Edit files in-place (else sends result to stdout)"
+//usage: "\n -i[SFX] Edit files in-place (otherwise sends to stdout)"
+//usage: "\n Optionally backs files up, appending SFX"
//usage: "\n -n Suppress automatic printing of pattern space"
//usage: "\n -r Use extended regex syntax"
//usage: "\n"
@@ -1374,6 +1375,19 @@ int sed_main(int argc UNUSED_PARAM, char **argv)
{
unsigned opt;
llist_t *opt_e, *opt_f;
+ char *opt_i;
+
+#if ENABLE_LONG_OPTS
+ static const char sed_longopts[] ALIGN1 =
+ /* name has_arg short */
+ "in-place\0" Optional_argument "i"
+ "regexp-extended\0" No_argument "r"
+ "quiet\0" No_argument "n"
+ "silent\0" No_argument "n"
+ "expression\0" Required_argument "e"
+ "file\0" Required_argument "f";
+#endif
+
int status = EXIT_SUCCESS;
INIT_G();
@@ -1382,17 +1396,21 @@ int sed_main(int argc UNUSED_PARAM, char **argv)
if (ENABLE_FEATURE_CLEAN_UP) atexit(sed_free_and_close_stuff);
/* Lie to autoconf when it starts asking stupid questions. */
- if (argv[1] && !strcmp(argv[1], "--version")) {
+ if (argv[1] && strcmp(argv[1], "--version") == 0) {
puts("This is not GNU sed version 4.0");
return 0;
}
/* do normal option parsing */
opt_e = opt_f = NULL;
+ opt_i = NULL;
opt_complementary = "e::f::" /* can occur multiple times */
"nn"; /* count -n */
+
+ IF_LONG_OPTS(applet_long_options = sed_longopts);
+
/* -i must be first, to match OPT_in_place definition */
- opt = getopt32(argv, "irne:f:", &opt_e, &opt_f,
+ opt = getopt32(argv, "i::rne:f:", &opt_i, &opt_e, &opt_f,
&G.be_quiet); /* counter for -n */
//argc -= optind;
argv += optind;
@@ -1474,8 +1492,13 @@ int sed_main(int argc UNUSED_PARAM, char **argv)
fclose(G.nonstdout);
G.nonstdout = stdout;
- /* unlink(argv[i]); */
- xrename(G.outname, argv[i]);
+ if (opt_i) {
+ char *backupname = xasprintf("%s%s", argv[i], opt_i);
+ xrename(argv[i], backupname);
+ free(backupname);
+ }
+ /* else unlink(argv[i]); - rename below does this */
+ xrename(G.outname, argv[i]); //TODO: rollback backup on error?
free(G.outname);
G.outname = NULL;