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authorRob Landley <rob@landley.net>2008-01-10 14:34:15 -0600
committerRob Landley <rob@landley.net>2008-01-10 14:34:15 -0600
commit6a9e5b4654e76585e38c6c6002eccba9b4b1b310 (patch)
treeec7422e6973812bd09f1b781197330f5c9c7c326
parentbd9155198f000037ec5b9d1e4ef26eae80bbb202 (diff)
downloadtoybox-6a9e5b4654e76585e38c6c6002eccba9b4b1b310.tar.gz
Very early stub of sed, does nothing yet.
-rw-r--r--toys/Config.in9
-rw-r--r--toys/sed.c46
-rw-r--r--toys/toylist.h14
3 files changed, 65 insertions, 4 deletions
diff --git a/toys/Config.in b/toys/Config.in
index 4fabd6ef..f1083233 100644
--- a/toys/Config.in
+++ b/toys/Config.in
@@ -330,6 +330,15 @@ config READLINK_F
-f Show full cannonical path, with no symlinks in it. Returns
nonzero if nothing could currently exist at this location.
+config SED
+ bool "sed"
+ default n
+ help
+ usage: sed [-irn] {command | [-e command]...} [FILE...]
+
+ Stream EDitor, transforms text by appling commands to each line
+ of input.
+
config SHA1SUM
bool "sha1sum"
default y
diff --git a/toys/sed.c b/toys/sed.c
new file mode 100644
index 00000000..39753399
--- /dev/null
+++ b/toys/sed.c
@@ -0,0 +1,46 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * sed.c - Stream editor.
+ *
+ * See http://www.opengroup.org/onlinepubs/009695399/utilities/sed.c
+ */
+
+#include "toys.h"
+#include "lib/xregcomp.h"
+
+#define TT toy.sed
+
+struct sed_command {
+ // Doubly linked list of commands.
+ struct sed_command *next, *prev;
+
+ // Regexes for s/match/data/ and /match_begin/,/match_end/command
+ regex_t *match, *match_begin, *match_end;
+
+ // For numeric ranges ala 10,20command
+ int first_line, last_line;
+
+ // Which match to replace, 0 for all.
+ int which;
+
+ // s and w commands can write to a file. Slight optimization: we use 0
+ // instead of -1 to mean no file here, because even when there's no stdin
+ // our input file would take fd 0.
+ int outfd;
+
+ // Data string for (saicytb)
+ char *data;
+
+ // Which command letter is this?
+ char command;
+};
+
+void sed_main(void)
+{
+ struct arg_list *test;
+
+ for (test = TT.commands; test; test = test->next)
+ dprintf(2,"command=%s\n",test->arg);
+
+ printf("Hello world\n");
+}
diff --git a/toys/toylist.h b/toys/toylist.h
index 2dd8620f..1f01c547 100644
--- a/toys/toylist.h
+++ b/toys/toylist.h
@@ -53,6 +53,10 @@ struct mke2fs_data {
struct ext2_superblock sb;
};
+struct mkfifo_data {
+ char *mode;
+};
+
struct netcat_data {
char *filename; // -f read from filename instead of network
long quit_delay; // -q Exit after EOF from stdin after # seconds.
@@ -77,6 +81,10 @@ struct patch_data {
char *tempname, *oldname;
};
+struct sed_data {
+ struct arg_list *commands;
+};
+
struct sleep_data {
long seconds;
};
@@ -91,10 +99,6 @@ struct toysh_data {
char *command;
};
-struct mkfifo_data {
- char *mode;
-};
-
extern union toy_union {
struct dmesg_data dmesg;
struct df_data df;
@@ -103,6 +107,7 @@ extern union toy_union {
struct netcat_data netcat;
struct oneit_data oneit;
struct patch_data patch;
+ struct sed_data sed;
struct sleep_data sleep;
struct touch_data touch;
struct toysh_data toysh;
@@ -155,6 +160,7 @@ USE_ONEIT(NEWTOY(oneit, "+<1c:p", TOYFLAG_SBIN))
USE_PATCH(NEWTOY(patch, "up#i:R", TOYFLAG_USR|TOYFLAG_BIN))
USE_PWD(NEWTOY(pwd, NULL, TOYFLAG_BIN))
USE_READLINK(NEWTOY(readlink, "<1f", TOYFLAG_BIN))
+USE_SED(NEWTOY(sed, "irne*", TOYFLAG_BIN))
USE_TOYSH(OLDTOY(sh, toysh, "c:i", TOYFLAG_BIN))
USE_SHA1SUM(NEWTOY(sha1sum, NULL, TOYFLAG_USR|TOYFLAG_BIN))
USE_SLEEP(NEWTOY(sleep, "<1", TOYFLAG_BIN))