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/* vi: set sw=4 ts=4:
*
* sed.c - Stream editor.
*
* Copyright 2008 Rob Landley <rob@landley.net>
*
* See http://opengroup.org/onlinepubs/9699919799/utilities/sed.c
USE_SED(NEWTOY(sed, "irne*", TOYFLAG_BIN))
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.
*/
#include "toys.h"
#include "lib/xregcomp.h"
DEFINE_GLOBALS(
struct arg_list *commands;
)
#define TT this.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");
}
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