Mercurial > hg > toybox
view toys/posix/sed.c @ 674:7e846e281e38
New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
author | Rob Landley <rob@landley.net> |
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date | Mon, 08 Oct 2012 00:02:30 -0500 |
parents | 6df4ccc0acbe |
children | 786841fdb1e0 |
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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. */ #define FOR_sed #include "toys.h" #include "lib/xregcomp.h" GLOBALS( struct arg_list *commands; ) 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"); }