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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | mjames | 1 | /* $Id: sorting.c,v 1.1.1.1 2003/11/04 23:34:57 mjames Exp $ |
| 2 | * |
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| 3 | * $Log: sorting.c,v $ |
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| 4 | * Revision 1.1.1.1 2003/11/04 23:34:57 mjames |
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| 5 | * Imported into local repositrory |
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| 6 | * |
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| 7 | * Revision 1.14 2002/10/02 18:39:54 MJAMES |
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| 8 | * Stopped copying pin_col to index on every node |
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| 9 | * |
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| 10 | * Revision 1.13 2002/09/16 14:41:43 mjames |
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| 11 | * Merge back pin indexing bug that meant |
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| 12 | * pin AZ12 was indistinguishable from pin Z12 in |
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| 13 | * rename ident/name commands |
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| 14 | * |
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| 15 | * Revision 1.12 2002/09/09 10:10:21 mjames |
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| 16 | * Moved pin remapping function to pin ident editing function from |
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| 17 | * sorting pin name routine. |
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| 18 | * |
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| 19 | * Revision 1.11 2002/09/09 09:53:01 mjames |
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| 20 | * Moved pin remapping function to pin ident editing function from |
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| 21 | * sorting pin name routine. |
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| 22 | * |
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| 23 | * Revision 1.10 2002/08/23 14:13:55 mjames |
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| 24 | * Added legal/illegal pin identifying letters to the header file. |
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| 25 | * Upgraded sort to determine row/column locations of pins identified like |
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| 26 | * 'a1' and '1a' etc or '1' , '2' |
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| 27 | * |
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| 28 | * Revision 1.9 2001/10/31 22:33:27 mjames |
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| 29 | * Suppress diagnostic print |
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| 30 | * |
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| 31 | * Revision 1.8 2001/10/31 22:20:17 mjames |
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| 32 | * Tidying up problematical comments caused by CVS |
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| 33 | * 'intelligent' comment guessing |
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| 34 | * |
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| 35 | * Revision 1.7 2001/10/31 16:15:36 mjames |
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| 36 | * Added a datastructure to hide regular expression information from programs. |
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| 37 | * |
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| 38 | * Revision 1.6 2001/10/22 10:53:50 mjames |
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| 39 | * Added a declaration of the Vertical regular expression compiler |
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| 40 | * which validates and complains about older 'regular expressions' |
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| 41 | * used by Vertical prior to using regexp in the C library |
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| 42 | * |
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| 43 | * Revision 1.5 2001/10/10 20:17:59 mjames |
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| 44 | * Added a vert_regcomp function to compile regular expressions |
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| 45 | * with '^' (match start string) and '$' (match end string) bracketing |
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| 46 | * this => wildcard must match entire string not just a part of it. |
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| 47 | * |
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| 48 | * Revision 1.4 2001/09/16 20:36:03 mjames |
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| 49 | * Second attempt to modify wire bundles to be connector rather than net |
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| 50 | * centric. Allows more than one connector to carry the same net, |
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| 51 | * |
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| 52 | * Revision 1.3 2001/09/16 19:48:53 mjames |
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| 53 | * Modified sorting algorithm to have sideffect of calculating pin rows and |
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| 54 | * columns for sockets. |
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| 55 | * |
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| 56 | * Revision 1.2 2001/06/06 12:10:17 mjames |
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| 57 | * Move from HPUX |
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| 58 | * |
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| 59 | * Revision 1.1.1.1 2000/10/19 21:58:40 mjames |
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| 60 | * Mike put it here |
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| 61 | * |
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| 62 | * |
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| 63 | * Revision 1.24 2000/10/04 10:37:10 10:37:10 mjames (Mike James) |
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| 64 | * Modified for Vertical2 : support COMPONENTS and SIGNALS |
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| 65 | * |
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| 66 | * Revision 1.24 2000/10/04 10:37:10 10:37:10 mjames (Mike James) |
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| 67 | * Part of Release PSAVAT01 |
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| 68 | * |
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| 69 | * Revision 1.23 2000/10/02 11:04:21 11:04:21 mjames (Mike James) |
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| 70 | * new_vhdl |
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| 71 | * |
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| 72 | * Revision 1.22 2000/09/27 14:42:21 14:42:21 mjames (Mike James) |
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| 73 | * Part of Release Sep_27_ST_2000 |
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| 74 | * |
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| 75 | * Revision 1.21 2000/09/21 10:15:51 10:15:51 mjames (Mike James) |
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| 76 | * Part of Release Sep21Alpha |
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| 77 | * |
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| 78 | * Revision 1.20 2000/08/25 09:57:16 09:57:16 mjames (Mike James) |
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| 79 | * Part of Release Aug25_alpha |
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| 80 | * |
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| 81 | * Revision 1.19 2000/08/16 08:57:33 08:57:33 mjames (Mike James) |
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| 82 | * Part of Release CD01_Aug2000 |
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| 83 | * |
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| 84 | * Revision 1.18 2000/08/14 14:45:13 14:45:13 mjames (Mike James) |
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| 85 | * Part of Release Aug_14_2000 |
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| 86 | * |
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| 87 | * Revision 1.17 2000/08/11 08:30:34 08:30:34 mjames (Mike James) |
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| 88 | * Part of Release Aug_11_2000 |
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| 89 | * |
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| 90 | * Revision 1.16 2000/08/09 10:31:49 10:31:49 mjames (Mike James) |
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| 91 | * Part of Release Aug__9_2000 |
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| 92 | * |
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| 93 | * Revision 1.15 2000/05/31 11:43:00 11:43:00 mjames (Mike James) |
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| 94 | * Part of Release May_31_2000 |
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| 95 | * |
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| 96 | * Revision 1.14 2000/05/08 17:01:40 17:01:40 mjames (Mike James) |
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| 97 | * Part of Release May__8_2000 |
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| 98 | * |
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| 99 | * Revision 1.13 2000/05/08 16:59:33 16:59:33 mjames (Mike James) |
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| 100 | * Part of Release May__8_2000 |
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| 101 | * |
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| 102 | * Revision 1.12 2000/05/08 16:57:10 16:57:10 mjames (Mike James) |
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| 103 | * Part of Release May__8_2000 |
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| 104 | * |
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| 105 | * Revision 1.11 2000/03/08 16:19:31 16:19:31 mjames (Mike James) |
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| 106 | * New version including PC |
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| 107 | * |
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| 108 | * Revision 1.8 2000/01/20 15:58:50 15:58:50 mjames (Mike James) |
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| 109 | * Part of Release R22 |
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| 110 | * |
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| 111 | * Revision 1.7 99/12/22 11:15:31 11:15:31 mjames (Mike James) |
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| 112 | * Part of Release Dec_22_1999 |
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| 113 | * |
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| 114 | * Revision 1.6 99/06/25 14:35:51 14:35:51 mjames (Mike James) |
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| 115 | * Added in reference to expression.h, but no changes made |
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| 116 | * to the function of acfread yet. |
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| 117 | * |
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| 118 | * Revision 1.5 99/05/04 09:52:52 09:52:52 mjames (Mike James) |
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| 119 | * General checkin |
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| 120 | * |
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| 121 | * Revision 1.4 98/02/11 11:27:19 11:27:19 mjames (Mike James) |
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| 122 | * Checked in for version 6.2a |
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| 123 | * |
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| 124 | * Revision 1.3 97/04/23 08:43:25 08:43:25 mjames (Mike James) |
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| 125 | * CHecked in for release rel23041997 |
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| 126 | * |
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| 127 | * Revision 1.2 96/12/23 15:17:00 15:17:00 mjames (Mike James) |
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| 128 | * Altered because find_socket takes a reference |
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| 129 | * to the head-of-list-pointer noth the pointer itself. |
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| 130 | * |
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| 131 | * Revision 1.1 96/12/23 10:26:21 10:26:21 mjames (Mike James) |
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| 132 | * Initial revision * */ |
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| 133 | |||
| 134 | #include <ctype.h> |
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| 135 | #include <regex.h> |
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| 136 | #include <stdio.h> |
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| 137 | #include <stdlib.h> |
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| 138 | #include <string.h> |
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| 139 | #include <sys/types.h> |
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| 140 | |||
| 141 | /* TCL/Tk declarations */ |
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| 142 | #include "cmdlog.h" |
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| 143 | #include "cmdparse.h" |
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| 144 | #include "database.h" |
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| 145 | #include "expression.h" |
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| 146 | #include "generic.h" |
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| 147 | #include "routing.h" |
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| 148 | #include "sorting.h" |
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| 149 | #include "vertcl_main.h" |
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| 150 | |||
| 151 | #ident \ |
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| 152 | "@(#)$Header: c:\\cygwin\\cvsroot/Vert03/vertlib/sorting.c,v 1.1.1.1 2003/11/04 23:34:57 mjames Exp $"; |
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| 153 | |||
| 154 | /* the comparison function : requires upgrade for checking : |
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| 155 | A1...A10 then B1..B10 or is it 1a..10a then 1b..10b */ |
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| 156 | #if defined SORT_ORIGINAL |
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| 157 | static int sort_nodes_compar (const void *p, const void *q) |
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| 158 | { |
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| 159 | char *s1 = (*(node_t **) p)->identifier; |
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| 160 | char *s2 = (*(node_t **) q)->identifier; |
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| 161 | |||
| 162 | int l1 = strlen (s1); |
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| 163 | int l2 = strlen (s2); |
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| 164 | if (l1 == l2) /* only call strcmp() for same length strings |
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| 165 | This makes '2' smaller than '19' */ |
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| 166 | return strcmp (s1, s2); |
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| 167 | else |
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| 168 | return l1 - l2; /* if different lengths, use the shorter name */ |
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| 169 | } |
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| 170 | #else |
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| 171 | |||
| 172 | /* this sort works for alpha - numeric strings : A1 A2 |
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| 173 | use SWAP command to swap identifiers */ |
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| 174 | static int sort_nodes_compar (const void *p, const void *q) |
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| 175 | { |
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| 176 | char *s1 = (*(node_t **) p)->id_alpha_chars; |
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| 177 | char *s2 = (*(node_t **) q)->id_alpha_chars; |
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| 178 | |||
| 179 | int l1 = (*(node_t **) p)->id_alpha_cnt; |
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| 180 | int l2 = (*(node_t **) q)->id_alpha_cnt; |
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| 181 | int diff = 0; |
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| 182 | /* |
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| 183 | printf("cmp p: a %3s[%2d] n %3s[%2d]\n", |
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| 184 | (*(node_t **)p)->id_alpha_chars, |
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| 185 | (*(node_t **)p)->id_alpha_cnt, |
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| 186 | (*(node_t **)p)->id_numeric_chars, |
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| 187 | (*(node_t **)p)->id_numeric_cnt); |
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| 188 | printf("cmp q: a %3s[%2d] n %3s[%2d]\n", |
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| 189 | (*(node_t **)q)->id_alpha_chars, |
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| 190 | (*(node_t **)q)->id_alpha_cnt, |
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| 191 | (*(node_t **)q)->id_numeric_chars, |
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| 192 | (*(node_t **)q)->id_numeric_cnt); |
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| 193 | */ |
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| 194 | |||
| 195 | if (l1 == l2) |
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| 196 | { |
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| 197 | /* only call strcmp() for same length strings */ |
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| 198 | diff = strncmp (s1, s2, l1); |
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| 199 | /* |
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| 200 | printf("alpha cmp (%s,%s,%d) different %d\n",s1,s2,l1,diff); |
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| 201 | */ |
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| 202 | if (diff == 0) /* alpha same */ |
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| 203 | { |
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| 204 | /* otherwise check the numeric parts of the strings */ |
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| 205 | /* these have been decoded already */ |
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| 206 | l1 = (*(node_t **) p)->pin_row; |
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| 207 | l2 = (*(node_t **) q)->pin_row; |
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| 208 | diff = l1 - l2; |
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| 209 | /* |
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| 210 | printf("num different %d\n",diff); |
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| 211 | */ |
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| 212 | } |
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| 213 | } |
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| 214 | else |
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| 215 | { |
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| 216 | diff = l1 - l2; /* if different alpha lengths, use the shorter name */ |
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| 217 | /* |
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| 218 | printf("alpha len different %d\n",diff); |
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| 219 | */ |
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| 220 | } |
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| 221 | /* |
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| 222 | printf("diff: %d string %7s row %2d and %7s row%2d\n",diff, |
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| 223 | (*(node_t **)p)->identifier, |
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| 224 | (*(node_t **)p)->pin_row, |
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| 225 | (*(node_t **)q)->identifier, |
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| 226 | (*(node_t **)q)->pin_row); |
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| 227 | */ |
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| 228 | return diff; |
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| 229 | } |
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| 230 | |||
| 231 | #endif |
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| 232 | |||
| 233 | /* this function sorts all of the pin references on a chip |
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| 234 | into alphanumeric order, and also generates a unique pin index for each pin |
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| 235 | in the case of alphanumeric pin identifiers : pin A1 or 1A will become index 1 */ |
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| 236 | #define BIG 1000000 |
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| 237 | |||
| 238 | /* mapping table has no letter 'I' or 'O' in it */ |
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| 239 | static unsigned char illegal_chars[] = PIN_MAP_ILLEGAL_CHARS; |
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| 240 | |||
| 241 | void sort_nodes (socket_t *chip, extract_xy_t mode) |
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| 242 | { |
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| 243 | node_t *nodes = chip->nodes; |
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| 244 | node_t **sort_list; |
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| 245 | |||
| 246 | int alpha_seen = 0; |
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| 247 | int numeric_seen = 0; |
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| 248 | /* Use generics to find out if the user has defined pin row/column |
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| 249 | limits (in the case where top or bottom connector rows are not |
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| 250 | connected at all */ |
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| 251 | |||
| 252 | generic_info_t gen[1]; |
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| 253 | |||
| 254 | /* |
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| 255 | printf("chip %s\n",chip->identifier); |
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| 256 | */ |
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| 257 | int nodecnt = 0; |
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| 258 | |||
| 259 | int max_row = -BIG; |
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| 260 | int min_row = BIG; |
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| 261 | int max_col = -BIG; |
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| 262 | int min_col = BIG; |
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| 263 | |||
| 264 | while (nodes) |
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| 265 | { |
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| 266 | /* to do need to identify the pattern of node identifiers */ |
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| 267 | /* numeric only ? */ |
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| 268 | /* alpha only ? */ |
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| 269 | /* alpha number */ |
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| 270 | /* number alpha */ |
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| 271 | /* highest pin number ? */ |
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| 272 | /* number of different alphas */ |
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| 273 | /* assign an ordinal automatically to each node element */ |
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| 274 | |||
| 275 | /* sorting data structure */ |
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| 276 | /* the form is 23A */ |
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| 277 | if (nodes->identifier) |
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| 278 | { |
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| 279 | if (isdigit (nodes->identifier[0])) |
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| 280 | { |
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| 281 | nodes->id_numeric_chars = nodes->identifier; |
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| 282 | nodes->id_numeric_cnt = |
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| 283 | 0; /* the numeric part of the identifier */ |
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| 284 | while (isdigit (nodes->identifier[nodes->id_numeric_cnt])) |
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| 285 | nodes->id_numeric_cnt++; /* the number of numeric chars |
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| 286 | in this part of the |
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| 287 | identifier */ |
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| 288 | nodes->id_alpha_chars = |
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| 289 | nodes->identifier + nodes->id_numeric_cnt; |
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| 290 | nodes->id_alpha_cnt = |
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| 291 | strlen (nodes->identifier) - nodes->id_numeric_cnt; |
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| 292 | } |
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| 293 | else |
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| 294 | { |
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| 295 | nodes->id_alpha_chars = nodes->identifier; |
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| 296 | nodes->id_alpha_cnt = |
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| 297 | 0; /* the numeric part of the identifier */ |
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| 298 | while (isalpha (nodes->identifier[nodes->id_alpha_cnt])) |
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| 299 | nodes->id_alpha_cnt++; /* the number of numeric chars |
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| 300 | in this part of the |
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| 301 | identifier */ |
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| 302 | nodes->id_numeric_chars = |
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| 303 | nodes->identifier + nodes->id_alpha_cnt; |
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| 304 | nodes->id_numeric_cnt = |
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| 305 | strlen (nodes->identifier) - nodes->id_alpha_cnt; |
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| 306 | } |
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| 307 | |||
| 308 | /* |
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| 309 | printf("node : %s : alpha=%d |
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| 310 | num=%d\n",nodes->identifier,nodes->id_alpha_cnt,nodes->id_numeric_cnt); |
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| 311 | */ |
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| 312 | } |
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| 313 | else |
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| 314 | { |
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| 315 | nodes->id_alpha_chars = NULL; /* the numeric part of the identifier */ |
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| 316 | nodes->id_alpha_cnt = |
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| 317 | 0; /* the number of numeric chars in this part of the identifier */ |
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| 318 | nodes->id_numeric_chars = NULL; |
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| 319 | nodes->id_numeric_cnt = 0; |
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| 320 | } |
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| 321 | |||
| 322 | /* dont touch the row/col indices unless asked to */ |
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| 323 | if (mode == EXTRACT_XY) |
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| 324 | { |
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| 325 | /* if digits seen these are assigned as row 1..n */ |
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| 326 | if (nodes->id_numeric_cnt) |
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| 327 | { |
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| 328 | int index = atoi (nodes->id_numeric_chars); |
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| 329 | numeric_seen = 1; |
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| 330 | nodes->pin_row = index; |
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| 331 | if (index > max_row) |
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| 332 | { |
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| 333 | max_row = index; |
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| 334 | } |
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| 335 | else if (index < min_row) |
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| 336 | { |
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| 337 | min_row = index; |
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| 338 | } |
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| 339 | } |
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| 340 | else |
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| 341 | { |
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| 342 | /* default is on row 1 */ |
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| 343 | nodes->pin_row = 1; |
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| 344 | } |
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| 345 | if (nodes->id_alpha_cnt > 0) |
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| 346 | { |
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| 347 | alpha_seen = 1; |
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| 348 | } |
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| 349 | |||
| 350 | /* between 1 and a few letters can be processed */ |
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| 351 | if (nodes->id_alpha_cnt > 0 && |
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| 352 | nodes->id_alpha_cnt <= MAX_ID_ALPHA_SORT) |
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| 353 | { |
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| 354 | int index; |
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| 355 | int charcnt; |
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| 356 | index = 0; |
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| 357 | for (charcnt = 0; charcnt < nodes->id_alpha_cnt; charcnt++) |
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| 358 | { |
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| 359 | int i; |
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| 360 | char c, d; |
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| 361 | d = 0; |
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| 362 | c = toupper (nodes->id_alpha_chars[charcnt]); |
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| 363 | /* work out how many illegal chars are before this one |
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| 364 | */ |
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| 365 | /* this mapping actually collapses I onto J and O onto |
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| 366 | * P */ |
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| 367 | /* I am assuming those two chars dont exist in the pin |
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| 368 | * ID .... */ |
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| 369 | /* flag an error and continue for the present */ |
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| 370 | /* characters are actually coded as 1..n so that IDs |
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| 371 | * like 'AA' look */ |
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| 372 | /* different to 'A', which they wont be if the leading |
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| 373 | * 'A' is coded as 0 */ |
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| 374 | for (i = 0; i < PIN_MAP_ILLEGAL_CHAR_COUNT; i++) |
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| 375 | { |
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| 376 | if (c == illegal_chars[i]) |
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| 377 | { |
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| 378 | Log ( |
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| 379 | LOG_GENERAL, |
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| 380 | "-- Warning : illegal pin ident " |
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| 381 | "character in %s(%d)\n", |
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| 382 | chip->identifier, |
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| 383 | nodes->identifier); |
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| 384 | } |
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| 385 | if (c >= illegal_chars[i]) |
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| 386 | { |
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| 387 | d++; |
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| 388 | } |
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| 389 | } |
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| 390 | index *= (PIN_MAP_LEGAL_CHAR_COUNT + 1); |
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| 391 | index += (c - d - 'A' + 1); |
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| 392 | } |
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| 393 | /* |
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| 394 | printf("'\n"); |
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| 395 | */ |
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| 396 | nodes->pin_col = index; |
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| 397 | if (index > max_col) |
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| 398 | { |
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| 399 | max_col = index; |
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| 400 | } |
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| 401 | else if (index < min_col) |
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| 402 | { |
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| 403 | min_col = index; |
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| 404 | } |
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| 405 | } |
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| 406 | else |
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| 407 | { |
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| 408 | /* default is column zero */ |
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| 409 | nodes->pin_col = 0; |
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| 410 | } |
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| 411 | } |
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| 412 | nodecnt++; |
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| 413 | nodes = nodes->sktnext; |
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| 414 | } |
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| 415 | |||
| 416 | chip->max_pin_col = max_col == -BIG ? 0 : max_col; |
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| 417 | chip->min_pin_col = min_col == BIG ? 0 : min_col; |
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| 418 | chip->max_pin_row = max_row == -BIG ? 0 : max_row; |
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| 419 | chip->min_pin_row = min_row == BIG ? 0 : min_row; |
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| 420 | /* |
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| 421 | printf("chip %10s col %3d to %3d , row %3d to |
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| 422 | %3d\n",chip->identifier,max_col,min_col,max_row,min_row); |
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| 423 | */ |
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| 424 | /* know the number of nodes now allocate storage for the pointers |
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| 425 | to be used by qsort() */ |
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| 426 | |||
| 427 | sort_list = calloc (nodecnt, sizeof (node_t *)); |
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| 428 | |||
| 429 | /* grab hold of all of the pointers */ |
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| 430 | nodes = chip->nodes; |
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| 431 | nodecnt = 0; |
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| 432 | while (nodes) |
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| 433 | { |
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| 434 | sort_list[nodecnt++] = nodes; |
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| 435 | nodes = nodes->sktnext; |
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| 436 | } |
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| 437 | |||
| 438 | /* sort them */ |
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| 439 | |||
| 440 | if (nodecnt) |
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| 441 | { |
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| 442 | int i; |
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| 443 | |||
| 444 | qsort ((void *) sort_list, nodecnt, sizeof (node_t *), &sort_nodes_compar); |
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| 445 | |||
| 446 | /* and now rebuild the list based on the sorted list */ |
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| 447 | chip->nodes = sort_list[0]; |
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| 448 | chip->lastnode = sort_list[nodecnt - 1]; |
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| 449 | |||
| 450 | /* relink the list */ |
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| 451 | for (i = 0; i < (nodecnt - 1); i++) |
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| 452 | { |
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| 453 | sort_list[i]->sktnext = sort_list[i + 1]; |
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| 454 | } |
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| 455 | sort_list[nodecnt - 1]->sktnext = NULL; |
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| 456 | } |
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| 457 | |||
| 458 | free (sort_list); |
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| 459 | |||
| 460 | /* check for overrides in case there are missing rows/cols */ |
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| 461 | |||
| 462 | if (get_generic_value (&chip->generics, "min_pin_row", gen) == IS_ATTRIBUTE) |
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| 463 | { |
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| 464 | chip->min_pin_row = eval_expression (gen->expr, &chip->generics); |
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| 465 | } |
||
| 466 | if (get_generic_value (&chip->generics, "max_pin_row", gen) == IS_ATTRIBUTE) |
||
| 467 | { |
||
| 468 | chip->max_pin_row = eval_expression (gen->expr, &chip->generics); |
||
| 469 | } |
||
| 470 | if (get_generic_value (&chip->generics, "min_pin_col", gen) == IS_ATTRIBUTE) |
||
| 471 | { |
||
| 472 | chip->min_pin_col = eval_expression (gen->expr, &chip->generics); |
||
| 473 | } |
||
| 474 | if (get_generic_value (&chip->generics, "max_pin_col", gen) == IS_ATTRIBUTE) |
||
| 475 | { |
||
| 476 | chip->max_pin_col = eval_expression (gen->expr, &chip->generics); |
||
| 477 | } |
||
| 478 | } |
||
| 479 | |||
| 480 | /* we have a pair of pointers to array elements */ |
||
| 481 | |||
| 482 | static int sort_socket_compar (const void *p, const void *q) |
||
| 483 | { |
||
| 484 | return strcmp ((*(socket_t **) p)->identifier, (*(socket_t **) q)->identifier); |
||
| 485 | } |
||
| 486 | |||
| 487 | /* this function sorts all of sockets into alphanumeric order */ |
||
| 488 | |||
| 489 | socket_t *sort_sockets (socket_t **head) |
||
| 490 | { |
||
| 491 | socket_t **sort_list, *chip = *head; |
||
| 492 | int sktcnt = 0; |
||
| 493 | |||
| 494 | while (chip) |
||
| 495 | { |
||
| 496 | sktcnt++; |
||
| 497 | chip = chip->next; |
||
| 498 | } |
||
| 499 | /* know the number of nodes now allocate storage for the pointers |
||
| 500 | to be used by qsort() */ |
||
| 501 | sort_list = calloc (sktcnt, sizeof (socket_t *)); |
||
| 502 | |||
| 503 | /* grab hold of all of the pointers */ |
||
| 504 | chip = *head; |
||
| 505 | sktcnt = 0; |
||
| 506 | while (chip) |
||
| 507 | { |
||
| 508 | sort_list[sktcnt++] = chip; |
||
| 509 | chip = chip->next; |
||
| 510 | } |
||
| 511 | |||
| 512 | /* sort them */ |
||
| 513 | |||
| 514 | if (sktcnt) |
||
| 515 | { |
||
| 516 | int i; |
||
| 517 | qsort ((char *) sort_list, sktcnt, sizeof (socket_t *), &sort_socket_compar); |
||
| 518 | |||
| 519 | /* and now rebuild the list based on the sorted list */ |
||
| 520 | *head = sort_list[0]; |
||
| 521 | |||
| 522 | /* relink the list */ |
||
| 523 | for (i = 0; i < (sktcnt - 1); i++) |
||
| 524 | { |
||
| 525 | sort_list[i]->next = sort_list[i + 1]; |
||
| 526 | } |
||
| 527 | sort_list[sktcnt - 1]->next = NULL; |
||
| 528 | } |
||
| 529 | free (sort_list); |
||
| 530 | return *head; |
||
| 531 | } |
||
| 532 | |||
| 533 | /* compile regular expression according |
||
| 534 | to Vertical expectations */ |
||
| 535 | /* What is required is a whole string match. In order to |
||
| 536 | achieve this, the regular expression is bracketed with |
||
| 537 | ^ and $ which mean in this context 'match start of string' |
||
| 538 | and 'match end of string' */ |
||
| 539 | |||
| 540 | int vert_regcomp (vert_regex_t **vert_preg, char *expr) |
||
| 541 | { |
||
| 542 | int rc; |
||
| 543 | vert_regex_t *preg; |
||
| 544 | /* allocate structure members */ |
||
| 545 | preg = calloc (1, sizeof (vert_regex_t)); |
||
| 546 | *vert_preg = preg; |
||
| 547 | rc = check_wildcard (expr); |
||
| 548 | if (rc != TCL_OK) |
||
| 549 | { |
||
| 550 | preg->buff = malloc (3); |
||
| 551 | strcpy (preg->buff, "^$"); |
||
| 552 | } |
||
| 553 | else |
||
| 554 | { |
||
| 555 | preg->buff = malloc (strlen (expr) + 3); |
||
| 556 | sprintf (preg->buff, "^%s$", expr); |
||
| 557 | } |
||
| 558 | /* printf("-- compare '%s'\n",preg->buff); */ |
||
| 559 | rc = regcomp (preg->preg, preg->buff, REG_EXTENDED | REG_ICASE); |
||
| 560 | return rc; |
||
| 561 | } |
||
| 562 | |||
| 563 | /* tidy up */ |
||
| 564 | int vert_regfree (vert_regex_t **vert_preg) |
||
| 565 | { |
||
| 566 | regfree ((*vert_preg)->preg); |
||
| 567 | free ((*vert_preg)->buff); |
||
| 568 | free (*vert_preg); |
||
| 569 | *vert_preg = NULL; |
||
| 570 | return 0; |
||
| 571 | } |