Mercurial > hg > toybox
diff toys/posix/sed.c @ 653:2986aa63a021
Move commands into "posix", "lsb", and "other" menus/directories.
author | Rob Landley <rob@landley.net> |
---|---|
date | Sat, 25 Aug 2012 14:25:22 -0500 |
parents | toys/sed.c@7cb15eae1664 |
children | 6df4ccc0acbe |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toys/posix/sed.c Sat Aug 25 14:25:22 2012 -0500 @@ -0,0 +1,63 @@ +/* vi: set sw=4 ts=4: + * + * sed.c - Stream editor. + * + * Copyright 2008 Rob Landley <rob@landley.net> + * + * See http://www.opengroup.org/onlinepubs/009695399/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"); +}