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annotate lwar/main.c @ 201:4503199d56ba

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Short circuit unneeded loops in pass4 Added debugging messages to deduce why pass4.c ran so slow. Short circuit unneeded looping yields approx. 70% reduction in execution time.
author William Astle <lost@l-w.ca>
date Fri, 16 Mar 2012 22:22:14 -0600
parents 6eed14cccac9
children 4130ffdeb5c8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0
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1 /*
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2 main.c
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3 Copyright © 2009 William Astle
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4
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5 This file is part of LWAR.
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6
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7 LWAR is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20
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21 Implements the program startup code
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22
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23 */
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24
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25 #include <errno.h>
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26 #include <stdio.h>
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27 #include <stdlib.h>
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28 #include <sys/types.h>
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29 #include <sys/stat.h>
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30 #include <unistd.h>
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31
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32 #include <lw_cmdline.h>
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33
0
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34 #include "lwar.h"
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35
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36 // command line option handling
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37 #define PROGVER "lwar from " PACKAGE_STRING
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38 char *program_name;
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39
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40 static int parse_opts(int key, char *arg, void *state)
0
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41 {
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42 switch (key)
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43 {
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44 case 'd':
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45 // debug
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46 debug_level++;
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47 break;
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48
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49 case 'a':
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50 // add members
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51 operation = LWAR_OP_ADD;
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52 break;
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53
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54 case 'c':
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55 // create archive
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56 operation = LWAR_OP_CREATE;
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57 break;
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58
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59 case 'm':
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60 mergeflag = 1;
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61 break;
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62
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63 case 'r':
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64 // replace members
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65 operation = LWAR_OP_REPLACE;
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66 break;
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67
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68 case 'l':
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69 // list members
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70 operation = LWAR_OP_LIST;
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71 break;
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72
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73 case 'x':
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74 // extract members
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75 operation = LWAR_OP_EXTRACT;
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76 break;
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77
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78 case lw_cmdline_key_arg:
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79 if (archive_file)
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80 {
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81 // add archive member to list
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82 add_file_name(arg);
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83 }
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84 else
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85 archive_file = arg;
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86 break;
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87
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88 default:
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89 return lw_cmdline_err_unknown;
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90 }
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91 return 0;
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92 }
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93
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94 static struct lw_cmdline_options options[] =
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95 {
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96 { "replace", 'r', 0, 0,
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97 "Add or replace archive members" },
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98 { "extract", 'x', 0, 0,
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99 "Extract members from the archive" },
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100 { "add", 'a', 0, 0,
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101 "Add members to the archive" },
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102 { "list", 'l', 0, 0,
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103 "List the contents of the archive" },
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104 { "create", 'c', 0, 0,
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105 "Create new archive (or truncate existing one)" },
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106 { "merge", 'm', 0, 0,
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107 "Add the contents of archive arguments instead of the archives themselves" },
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108 { "debug", 'd', 0, 0,
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109 "Set debug mode"},
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110 { 0 }
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111 };
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112
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113 static struct lw_cmdline_parser argparser =
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114 {
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115 options,
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116 parse_opts,
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117 "ARCHIVE [FILE ...]",
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118 "lwar, a library file manager for lwlink",
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119 PROGVER
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120 };
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121
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122 extern void do_list(void);
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123 extern void do_add(void);
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124 extern void do_remove(void);
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125 extern void do_replace(void);
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126 extern void do_extract(void);
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127
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128 // main function; parse command line, set up assembler state, and run the
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129 // assembler on the first file
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130 int main(int argc, char **argv)
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131 {
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132 program_name = argv[0];
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133 lw_cmdline_parse(&argparser, argc, argv, 0, 0, NULL);
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134 if (archive_file == NULL)
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135 {
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136 fprintf(stderr, "You must specify an archive file.\n");
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137 exit(1);
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138 }
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139
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140 if (operation == 0)
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141 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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142 fprintf(stderr, "You must specify an operation.\n");
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143 exit(1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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144 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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145
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146 if (operation == LWAR_OP_LIST || operation == LWAR_OP_REMOVE || operation == LWAR_OP_EXTRACT)
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147 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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148 struct stat stbuf;
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149 // make sure the archive exists
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150 if (stat(archive_file, &stbuf) < 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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151 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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152 fprintf(stderr, "Cannot open archive file %s:\n", archive_file);
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153 perror("");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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154 exit(2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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155 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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156 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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157 if (operation == LWAR_OP_CREATE)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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158 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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159 struct stat stbuf;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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160 // check if the archive exists
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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161 if (stat(archive_file, &stbuf) < 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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162 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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163 if (errno != ENOENT)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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164 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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165 fprintf(stderr, "Cannot create archive file %s:\n", archive_file);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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166 perror("");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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167 exit(2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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168 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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169 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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170 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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171 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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172 if (unlink(archive_file) < 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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173 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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174 fprintf(stderr, "Cannot create archive file %s:\n", archive_file);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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175 perror("");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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176 exit(2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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177 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
178
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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179 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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180 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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181
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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182 switch (operation)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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183 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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184 case LWAR_OP_LIST:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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185 do_list();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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186 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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187
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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188 case LWAR_OP_ADD:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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189 case LWAR_OP_CREATE:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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190 do_add();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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191 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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192
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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193 case LWAR_OP_REMOVE:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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194 do_remove();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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195 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
196
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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197 case LWAR_OP_REPLACE:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
198 do_replace();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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199 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
200
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
201 case LWAR_OP_EXTRACT:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
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202 do_extract();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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203 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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204 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
205
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
206 exit(0);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
207 }