Mercurial > hg > toybox
annotate toys/posix/sed.c @ 653:2986aa63a021
Move commands into "posix", "lsb", and "other" menus/directories.
author | Rob Landley <rob@landley.net> |
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date | Sat, 25 Aug 2012 14:25:22 -0500 |
parents | toys/sed.c@7cb15eae1664 |
children | 6df4ccc0acbe |
rev | line source |
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1 /* vi: set sw=4 ts=4: |
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2 * |
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3 * sed.c - Stream editor. |
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4 * |
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5 * Copyright 2008 Rob Landley <rob@landley.net> |
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6 * |
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7 * See http://www.opengroup.org/onlinepubs/009695399/utilities/sed.c |
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8 |
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9 USE_SED(NEWTOY(sed, "irne*", TOYFLAG_BIN)) |
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10 |
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11 config SED |
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12 bool "sed" |
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13 default n |
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14 help |
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15 usage: sed [-irn] {command | [-e command]...} [FILE...] |
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16 |
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17 Stream EDitor, transforms text by appling commands to each line |
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18 of input. |
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19 */ |
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20 |
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21 #include "toys.h" |
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22 #include "lib/xregcomp.h" |
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23 |
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24 DEFINE_GLOBALS( |
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25 struct arg_list *commands; |
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26 ) |
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27 |
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28 #define TT this.sed |
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29 |
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30 struct sed_command { |
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31 // Doubly linked list of commands. |
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32 struct sed_command *next, *prev; |
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33 |
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34 // Regexes for s/match/data/ and /match_begin/,/match_end/command |
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35 regex_t *match, *match_begin, *match_end; |
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36 |
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37 // For numeric ranges ala 10,20command |
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38 int first_line, last_line; |
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39 |
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40 // Which match to replace, 0 for all. |
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41 int which; |
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42 |
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43 // s and w commands can write to a file. Slight optimization: we use 0 |
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44 // instead of -1 to mean no file here, because even when there's no stdin |
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45 // our input file would take fd 0. |
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46 int outfd; |
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47 |
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48 // Data string for (saicytb) |
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49 char *data; |
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50 |
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51 // Which command letter is this? |
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52 char command; |
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53 }; |
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54 |
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55 void sed_main(void) |
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56 { |
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57 struct arg_list *test; |
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58 |
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59 for (test = TT.commands; test; test = test->next) |
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60 dprintf(2,"command=%s\n",test->arg); |
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61 |
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62 printf("Hello world\n"); |
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63 } |