1 | ###########################################################################
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2 | #
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3 | # mgppbuildproc.pm --
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4 | # A component of the Greenstone digital library software
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5 | # from the New Zealand Digital Library Project at the
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6 | # University of Waikato, New Zealand.
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7 | #
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8 | # Copyright (C) 1999 New Zealand Digital Library Project
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9 | #
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10 | # This program is free software; you can redistribute it and/or modify
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11 | # it under the terms of the GNU General Public License as published by
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12 | # the Free Software Foundation; either version 2 of the License, or
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13 | # (at your option) any later version.
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14 | #
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15 | # This program is distributed in the hope that it will be useful,
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16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | # GNU General Public License for more details.
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19 | #
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20 | # You should have received a copy of the GNU General Public License
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21 | # along with this program; if not, write to the Free Software
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22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | #
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24 | ###########################################################################
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25 |
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26 | # This document processor outputs a document
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27 | # for mgpp to process
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28 |
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29 |
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30 | package mgppbuildproc;
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31 |
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32 | use classify;
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33 | use doc;
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34 | use docproc;
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35 | use util;
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36 |
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37 |
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38 | BEGIN {
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39 | @ISA = ('docproc');
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40 | }
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41 |
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42 |
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43 | sub new {
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44 | my ($class, $collection, $source_dir, $build_dir,
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45 | $verbosity, $outhandle) = @_;
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46 | my $self = new docproc ();
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47 |
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48 | # outhandle is where all the debugging info goes
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49 | # output_handle is where the output of the plugins is piped
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50 | # to (i.e. mg, gdbm etc.)
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51 | $outhandle = STDERR unless defined $outhandle;
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52 |
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53 | $self->{'collection'} = $collection;
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54 | $self->{'source_dir'} = $source_dir;
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55 | $self->{'build_dir'} = $build_dir;
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56 | $self->{'verbosity'} = $verbosity;
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57 | $self->{'classifiers'} = [];
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58 | $self->{'mode'} = "text";
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59 | $self->{'assocdir'} = $build_dir;
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60 | $self->{'dontgdbm'} = {};
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61 | $self->{'index'} = "text";
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62 | $self->{'indexexparr'} = [];
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63 | $self->{'output_handle'} = "STDOUT";
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64 | $self->{'num_docs'} = 0;
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65 | $self->{'num_sections'} = 0;
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66 | $self->{'num_bytes'} = 0;
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67 | $self->{'num_processed_bytes'} = 0;
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68 | $self->{'outhandle'} = $outhandle;
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69 | $self->{'store_text'} = 1;
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70 | $self->{'dontindex'} = {};
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71 | $self->{'indexfieldmap'} = {};
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72 |
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73 | $self->{'indexing_text'} = 0;
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74 | $self->{'indexfields'} = {};
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75 | $self->{'strip_html'}=1;
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76 |
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77 |
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78 | return bless $self, $class;
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79 | }
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80 |
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81 | sub reset {
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82 | my $self = shift (@_);
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83 |
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84 | $self->{'num_docs'} = 0;
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85 | $self->{'num_sections'} = 0;
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86 | $self->{'num_processed_bytes'} = 0;
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87 | $self->{'num_bytes'} = 0;
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88 | }
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89 |
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90 | sub get_num_docs {
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91 | my $self = shift (@_);
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92 |
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93 | return $self->{'num_docs'};
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94 | }
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95 |
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96 | sub get_num_sections {
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97 | my $self = shift (@_);
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98 |
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99 | return $self->{'num_sections'};
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100 | }
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101 |
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102 | # num_bytes is the actual number of bytes in the collection
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103 | # this is normally the same as what's processed during text compression
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104 | sub get_num_bytes {
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105 | my $self = shift (@_);
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106 |
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107 | return $self->{'num_bytes'};
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108 | }
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109 |
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110 | # num_processed_bytes is the number of bytes actually passed
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111 | # to mgpp for the current index
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112 | sub get_num_processed_bytes {
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113 | my $self = shift (@_);
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114 |
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115 | return $self->{'num_processed_bytes'};
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116 | }
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117 |
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118 | sub set_output_handle {
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119 | my $self = shift (@_);
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120 | my ($handle) = @_;
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121 |
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122 | $self->{'output_handle'} = $handle;
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123 | }
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124 |
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125 | sub set_mode {
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126 | my $self = shift (@_);
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127 | my ($mode) = @_;
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128 |
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129 | $self->{'mode'} = $mode;
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130 | }
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131 |
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132 | sub set_assocdir {
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133 | my $self = shift (@_);
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134 | my ($assocdir) = @_;
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135 |
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136 | $self->{'assocdir'} = $assocdir;
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137 | }
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138 |
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139 | sub set_dontgdbm {
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140 | my $self = shift (@_);
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141 | my ($dontgdbm) = @_;
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142 |
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143 | $self->{'dontgdbm'} = $dontgdbm;
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144 | }
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145 |
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146 | sub set_index {
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147 | my $self = shift (@_);
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148 | my ($index, $indexexparr) = @_;
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149 |
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150 | $self->{'index'} = $index;
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151 | $self->{'indexexparr'} = $indexexparr if defined $indexexparr;
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152 | }
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153 |
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154 | sub get_index {
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155 | my $self = shift (@_);
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156 |
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157 | return $self->{'index'};
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158 | }
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159 |
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160 | sub set_classifiers {
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161 | my $self = shift (@_);
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162 | my ($classifiers) = @_;
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163 |
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164 | $self->{'classifiers'} = $classifiers;
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165 | }
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166 |
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167 | sub set_indexing_text {
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168 | my $self = shift (@_);
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169 | my ($indexing_text) = @_;
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170 |
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171 | $self->{'indexing_text'} = $indexing_text;
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172 | }
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173 |
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174 | sub get_indexing_text {
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175 | my $self = shift (@_);
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176 |
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177 | return $self->{'indexing_text'};
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178 | }
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179 |
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180 | sub set_store_text {
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181 | my $self = shift (@_);
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182 | my ($store_text) = @_;
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183 |
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184 | $self->{'store_text'} = $store_text;
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185 | }
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186 |
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187 | sub set_indexfieldmap {
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188 | my $self = shift (@_);
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189 | my ($indexmap) = @_;
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190 |
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191 | $self->{'indexfieldmap'} = $indexmap;
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192 | }
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193 |
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194 | sub get_indexfieldmap {
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195 | my $self = shift (@_);
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196 |
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197 | return $self->{'indexfieldmap'};
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198 | }
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199 |
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200 | sub set_levels {
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201 | my $self = shift (@_);
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202 | my ($levels) = @_;
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203 |
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204 | $self->{'levels'} = $levels;
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205 | }
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206 |
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207 | sub set_strip_html {
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208 | my $self = shift (@_);
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209 | my ($strip) = @_;
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210 | $self->{'strip_html'}=$strip;
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211 | }
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212 |
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213 | sub process {
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214 | my $self = shift (@_);
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215 | my $method = $self->{'mode'};
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216 |
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217 | $self->$method(@_);
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218 | }
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219 |
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220 | # use 'Paged' if document has no more than 2 levels
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221 | # and each section at second level has a number for
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222 | # Title metadata
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223 | sub get_document_type {
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224 | my $self = shift (@_);
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225 | my ($doc_obj) = @_;
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226 |
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227 | my $thistype = "VList";
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228 | my $childtype = "VList";
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229 | my $title;
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230 | my @tmp = ();
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231 |
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232 | my $section = $doc_obj->get_top_section ();
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233 | my $first = 1;
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234 | while (defined $section) {
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235 | @tmp = split /\./, $section;
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236 | if (scalar(@tmp) > 1) {
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237 | return ($thistype, $childtype);
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238 | }
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239 | if (!$first) {
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240 | $title = $doc_obj->get_metadata_element ($section, "Title");
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241 | if (!defined $title || $title !~ /^\d+$/) {
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242 | return ($thistype, $childtype);
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243 | }
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244 | }
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245 | $first = 0;
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246 | $section = $doc_obj->get_next_section($section);
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247 | }
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248 | if ($doc_obj->get_text_length ($doc_obj->get_top_section())) {
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249 | $thistype = "Paged";
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250 | } else {
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251 | $thistype = "Invisible";
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252 | }
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253 | $childtype = "Paged";
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254 | return ($thistype, $childtype);
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255 | }
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256 |
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257 | sub assoc_files {
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258 | my $self = shift (@_);
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259 | my ($doc_obj, $archivedir) = @_;
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260 | my ($afile);
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261 |
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262 | foreach my $assoc_file (@{$doc_obj->get_assoc_files()}) {
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263 | # if assoc file contains directory structure of
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264 | # its own use it, otherwise use HASH... directory
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265 | if ($assoc_file->[1] =~ /[\/\\]/) {
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266 | $afile = &util::filename_cat($self->{'assocdir'}, $assoc_file->[1]);
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267 | } else {
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268 | $afile = &util::filename_cat($self->{'assocdir'}, $archivedir, $assoc_file->[1]);
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269 | }
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270 | &util::hard_link ($assoc_file->[0], $afile);
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271 | }
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272 | }
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273 |
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274 | sub infodb {
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275 | my $self = shift (@_);
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276 | my ($doc_obj, $filename) = @_;
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277 | my $handle = $self->{'output_handle'};
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278 |
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279 | my $doctype = $doc_obj->get_doc_type();
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280 |
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281 | # only output this document if it is one to be indexed
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282 | return if ($doctype ne "indexed_doc");
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283 |
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284 | #if a Section level index is not built, the gdbm file should be at doc
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285 | #level not Section
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286 | my $docs_only = 1;
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287 | if ($self->{'levels'}->{'Section'}) {
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288 | $docs_only = 0;
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289 | }
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290 |
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291 | my ($archivedir) = $filename =~ /^(.*?)(?:\/|\\)[^\/\\]*$/;
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292 | $archivedir = "" unless defined $archivedir;
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293 | $archivedir =~ s/\\/\//g;
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294 | $archivedir =~ s/^\/+//;
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295 | $archivedir =~ s/\/+$//;
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296 |
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297 | $self->assoc_files ($doc_obj, $archivedir);
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298 |
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299 | # this is another document
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300 | $self->{'num_docs'} += 1 unless ($doctype eq "classification");
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301 |
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302 | # is this a paged or a hierarchical document
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303 | my ($thistype, $childtype) = $self->get_document_type ($doc_obj);
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304 |
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305 | my $section = $doc_obj->get_top_section ();
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306 | my $doc_OID = $doc_obj->get_OID();
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307 | my $first = 1;
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308 | my $url = "";
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309 | while (defined $section) {
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310 | # update a few statistics
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311 | $self->{'num_bytes'} += $doc_obj->get_text_length ($section);
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312 | $self->{'num_sections'} += 1 unless ($doctype eq "classification");
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313 |
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314 | # output the section name
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315 | if ($section eq "") { print $handle "[$doc_OID]\n"; }
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316 | else { print $handle "[$doc_OID.$section]\n"; }
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317 |
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318 | # output the fact that this document is a document (unless doctype
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319 | # has been set to something else from within a plugin
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320 | my $dtype = $doc_obj->get_metadata_element ($section, "doctype");
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321 | if (!defined $dtype || $dtype !~ /\w/) {
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322 | print $handle "<doctype>doc\n";
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323 | }
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324 |
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325 | # output whether this node contains text
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326 | if ($doc_obj->get_text_length($section) > 0) {
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327 | print $handle "<hastxt>1\n";
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328 | } else {
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329 | print $handle "<hastxt>0\n";
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330 | }
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331 |
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332 | # output all the section metadata
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333 | my $metadata = $doc_obj->get_all_metadata ($section);
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334 | foreach my $pair (@$metadata) {
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335 | my ($field, $value) = (@$pair);
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336 |
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337 | if ($field ne "Identifier" && $field !~ /^gsdl/ &&
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338 | defined $value && $value ne "") {
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339 |
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340 | # escape problematic stuff
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341 | $value =~ s/\\/\\\\/g;
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342 | $value =~ s/\n/\\n/g;
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343 | $value =~ s/\r/\\r/g;
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344 |
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345 | # special case for URL metadata
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346 | if ($field =~ /^URL$/i) {
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347 | $url .= "[$value]\n";
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348 | if ($section eq "") {$url .= "<section>$doc_OID\n";}
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349 | else {$url .= "<section>$doc_OID.$section\n";}
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350 | $url .= '-' x 70 . "\n";
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351 | }
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352 |
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353 | if (!defined $self->{'dontgdbm'}->{$field}) {
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354 | print $handle "<$field>$value\n";
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355 | }
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356 | }
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357 | }
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358 |
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359 | # output archivedir if at top level
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360 | if ($section eq $doc_obj->get_top_section()) {
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361 | print $handle "<archivedir>$archivedir\n";
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362 | }
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363 |
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364 | # output document display type
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365 | if ($first) {
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366 | print $handle "<thistype>$thistype\n";
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367 | }
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368 |
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369 | if (!$docs_only) {
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370 | # output a list of children
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371 | my $children = $doc_obj->get_children ($section);
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372 | if (scalar(@$children) > 0) {
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373 | print $handle "<childtype>$childtype\n";
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374 | print $handle "<contains>";
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375 | my $firstchild = 1;
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376 | foreach $child (@$children) {
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377 | print $handle ";" unless $firstchild;
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378 | $firstchild = 0;
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379 | if ($child =~ /^.*?\.(\d+)$/) {
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380 | print $handle "\".$1";
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381 | } else {
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382 | print $handle "\".$child";
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383 | }
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384 | # if ($child eq "") { print $handle "$doc_OID"; }
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385 | # elsif ($section eq "") { print $handle "$doc_OID.$child"; }
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386 | # else { print $handle "$doc_OID.$section.$child"; }
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387 | }
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388 | print $handle "\n";
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389 | }
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390 | #output the matching doc number
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391 | print $handle "<docnum>$self->{'num_sections'}\n";
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392 |
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393 | } # if (!$docs_only)
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394 | else { #docs only, doc num is num_docs not num_sections
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395 | # output the matching document number
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396 | print $handle "<docnum>$self->{'num_docs'}\n";
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397 | }
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398 |
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399 | print $handle '-' x 70, "\n";
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400 |
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401 |
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402 | # output a database entry for the document number
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403 | if ($docs_only) {
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404 | print $handle "[$self->{'num_docs'}]\n";
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405 | print $handle "<section>$doc_OID\n";
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406 | }
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407 | else {
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408 | print $handle "[$self->{'num_sections'}]\n";
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409 | if ($section eq "") { print $handle "<section>$doc_OID\n"; }
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410 | else { print $handle "<section>$doc_OID.$section\n"; }
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411 | }
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412 | print $handle '-' x 70, "\n";
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413 |
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414 | # output entry for url
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415 | if ($url ne "") {
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416 | print $handle $url;
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417 | }
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418 |
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419 | $first = 0;
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420 | $section = $doc_obj->get_next_section($section);
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421 | last if ($docs_only); # if no sections wanted, only gdbm the docs
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422 | }
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423 |
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424 | # classify this document
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425 | &classify::classify_doc ($self->{'classifiers'}, $doc_obj);
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426 |
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427 | }
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428 |
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429 | sub find_paragraphs {
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430 | $_[1] =~ s/(<p\b)/<Paragraph>$1/gi;
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431 | }
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432 |
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433 | #this function strips the html tags from the doc if ($strip_html) and
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434 | # if ($para) replaces <p> with <Paragraph> tags.
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435 | # if both are false, the original text is returned
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436 | #assumes that <pre> and </pre> have no spaces, and removes all < and > inside
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437 | #these tags
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438 | sub preprocess_text {
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439 | my $self = shift (@_);
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440 | my ($text, $strip_html, $para) = @_;
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441 |
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442 | my ($outtext) = "";
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443 | if ($strip_html) {
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444 | while ($text =~ /<([^>]*)>/ && $text ne "") {
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445 |
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446 | $tag = $1;
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447 | $outtext .= $`." "; #add everything before the matched tag
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448 | $text = $'; #everything after the matched tag
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449 | if ($para && $tag =~ /^\s*p\s/) {
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450 | $outtext .= "<Paragraph> ";
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451 | }
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452 | elsif ($tag =~ /^pre$/) { # a pre tag
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453 | $text =~ /<\/pre>/; # find the closing pre tag
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454 | my $tmp_text = $`; #everything before the closing pre tag
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455 | $text = $'; #everything after the </pre>
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456 | $tmp_text =~ s/[<>]//g; # remove all < and >
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457 | $outtext.= $tmp_text . " ";
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458 | }
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459 | }
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460 |
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461 | $outtext .= $text; # add any remaining text
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462 | return $outtext;
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463 | } #if strip_html
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464 |
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465 | if ($para) {
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466 | $text =~ s/(<p\b)/<Paragraph>$1/gi;
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467 | return $text;
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468 | }
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469 | return $text;
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470 | }
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471 |
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472 |
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473 |
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474 | sub filter_text {
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475 | # $self->filter_text ($field, $new_text);
|
---|
476 | # don't want to do anything for this version, however,
|
---|
477 | # in a particular collection you might want to override
|
---|
478 | # this method to post-process certain fields depending on
|
---|
479 | # the field, or whether we are outputting it for indexing
|
---|
480 | }
|
---|
481 |
|
---|
482 | sub text {
|
---|
483 | my $self = shift (@_);
|
---|
484 | my ($doc_obj) = @_;
|
---|
485 | my $handle = $self->{'output_handle'};
|
---|
486 | my $indexed_doc = 1;
|
---|
487 |
|
---|
488 | # only output this document if it is one to be indexed
|
---|
489 | return if ($doc_obj->get_doc_type() ne "indexed_doc");
|
---|
490 |
|
---|
491 | # see if this document belongs to this subcollection
|
---|
492 | foreach my $indexexp (@{$self->{'indexexparr'}}) {
|
---|
493 | $indexed_doc = 0;
|
---|
494 | my ($field, $exp, $options) = split /\//, $indexexp;
|
---|
495 | if (defined ($field) && defined ($exp)) {
|
---|
496 | my ($bool) = $field =~ /^(.)/;
|
---|
497 | $field =~ s/^.// if $bool eq '!';
|
---|
498 | if ($field =~ /^filename$/i) {
|
---|
499 | $field = $doc_obj->get_source_filename();
|
---|
500 | } else {
|
---|
501 | $field = $doc_obj->get_metadata_element($doc_obj->get_top_section(), $field);
|
---|
502 | }
|
---|
503 | next unless defined $field;
|
---|
504 | if ($bool eq '!') {
|
---|
505 | if ($options =~ /^i$/i) {
|
---|
506 | if ($field !~ /$exp/i) {$indexed_doc = 1; last;}
|
---|
507 | } else {
|
---|
508 | if ($field !~ /$exp/) {$indexed_doc = 1; last;}
|
---|
509 | }
|
---|
510 | } else {
|
---|
511 | if ($options =~ /^i$/i) {
|
---|
512 | if ($field =~ /$exp/i) {$indexed_doc = 1; last;}
|
---|
513 | } else {
|
---|
514 | if ($field =~ /$exp/) {$indexed_doc = 1; last;}
|
---|
515 | }
|
---|
516 | }
|
---|
517 | }
|
---|
518 | }
|
---|
519 |
|
---|
520 | # this is another document
|
---|
521 | $self->{'num_docs'} += 1;
|
---|
522 |
|
---|
523 | # get the parameters for the output
|
---|
524 | my ($fields) = $self->{'index'};
|
---|
525 |
|
---|
526 | my ($sectiontag) = "";
|
---|
527 | if ($self->{'levels'}->{'Section'}) {
|
---|
528 | $sectiontag = "\n<Section>\n";
|
---|
529 | }
|
---|
530 | my ($paratag) = "";
|
---|
531 | if ($self->{'levels'}->{'Paragraph'}) {
|
---|
532 | $paratag = "<Paragraph>";
|
---|
533 | }
|
---|
534 | my $doc_section = 0; # just for this document
|
---|
535 | my $text = "<Document>\n";
|
---|
536 |
|
---|
537 | # get the text for this document
|
---|
538 | my $section = $doc_obj->get_top_section();
|
---|
539 | while (defined $section) {
|
---|
540 | # update a few statistics
|
---|
541 | $doc_section++;
|
---|
542 | $self->{'num_sections'} += 1;
|
---|
543 | $text .= $sectiontag;
|
---|
544 |
|
---|
545 | if ($indexed_doc) {
|
---|
546 | $self->{'num_bytes'} += $doc_obj->get_text_length ($section);
|
---|
547 | foreach my $field (split (/,/, $fields)) {
|
---|
548 | # only deal with this field if it doesn't start with top or
|
---|
549 | # this is the first section
|
---|
550 | my $real_field = $field;
|
---|
551 | if (!($real_field =~ s/^top//) || ($doc_section == 1)) {
|
---|
552 | my $new_text = "";
|
---|
553 | my $tmp_text = "";
|
---|
554 | if ($real_field eq "text") {
|
---|
555 | if ($self->{'indexing_text'}) { #tag the text with <Text>...</Text>, add the <Paragraph> tags and strip out html if needed
|
---|
556 | $new_text .= "<TX>\n";
|
---|
557 | $tmp_text .= $doc_obj->get_text ($section) if $self->{'store_text'};
|
---|
558 | $tmp_text = $self->preprocess_text($tmp_text, $self->{'strip_html'}, $self->{'levels'}->{'Paragraph'});
|
---|
559 |
|
---|
560 | $new_text .= "$tmp_text</TX>\n";
|
---|
561 | if (!defined $self->{'indexfields'}->{'TextOnly'}) {
|
---|
562 | $self->{'indexfields'}->{'TextOnly'} = 1;
|
---|
563 | }
|
---|
564 | }
|
---|
565 | else { # leave html stuff in, and dont add Paragraph tags - never retrieve paras at the moment
|
---|
566 | $new_text .= $doc_obj->get_text ($section) if $self->{'store_text'};
|
---|
567 | #if ($self->{'levels'}->{'Paragraph'}) {
|
---|
568 | #$self->find_paragraphs($new_text);
|
---|
569 | #}
|
---|
570 | }
|
---|
571 | } else { # metadata field
|
---|
572 | if ($real_field eq "metadata") { # insert all metadata
|
---|
573 | #except gsdl stuff
|
---|
574 | my $shortname = "";
|
---|
575 | my $metadata = $doc_obj->get_all_metadata ($section);
|
---|
576 | foreach $pair (@$metadata) {
|
---|
577 | my ($mfield, $mvalue) = (@$pair);
|
---|
578 | # check fields here, maybe others dont want - change to use dontindex!!
|
---|
579 | if ($mfield ne "Identifier" && $mfield ne "classifytype" && $mfield ne "assocfilepath" &&
|
---|
580 | $mfield !~ /^gsdl/ && defined $mvalue && $mvalue ne "") {
|
---|
581 |
|
---|
582 | if (defined $self->{'indexfieldmap'}->{$mfield}) {
|
---|
583 | $shortname = $self->{'indexfieldmap'}->{$mfield};
|
---|
584 | }
|
---|
585 | else {
|
---|
586 | $shortname = $self->create_shortname($mfield);
|
---|
587 | $self->{'indexfieldmap'}->{$mfield} = $shortname;
|
---|
588 | $self->{'indexfieldmap'}->{$shortname} = 1;
|
---|
589 | }
|
---|
590 | $new_text .= "$paratag<$shortname>$mvalue</$shortname>\n";
|
---|
591 | if (!defined $self->{'indexfields'}->{$mfield}) {
|
---|
592 | $self->{'indexfields'}->{$mfield} = 1;
|
---|
593 | }
|
---|
594 | }
|
---|
595 | }
|
---|
596 |
|
---|
597 | }
|
---|
598 | else { #individual metadata specified
|
---|
599 | my $shortname="";
|
---|
600 | if (!defined $self->{'indexfields'}->{$real_field}) {
|
---|
601 | $self->{'indexfields'}->{$real_field} = 1;
|
---|
602 | }
|
---|
603 | if (defined $self->{'indexfieldmap'}->{$real_field}) {
|
---|
604 | $shortname = $self->{'indexfieldmap'}->{$real_field};
|
---|
605 | }
|
---|
606 | else {
|
---|
607 | $shortname = $self->create_shortname($real_field);
|
---|
608 | $self->{'indexfieldmap'}->{$real_field} = $shortname;
|
---|
609 | $self->{'indexfieldmap'}->{$shortname} = 1;
|
---|
610 | }
|
---|
611 | foreach $item (@{$doc_obj->get_metadata ($section, $real_field)}) {
|
---|
612 | $new_text .= "$paratag<$shortname>$item</$shortname>\n";
|
---|
613 | }
|
---|
614 | }
|
---|
615 |
|
---|
616 | }
|
---|
617 |
|
---|
618 | # filter the text
|
---|
619 | $self->filter_text ($field, $new_text);
|
---|
620 |
|
---|
621 | $self->{'num_processed_bytes'} += length ($new_text);
|
---|
622 | $text .= "$new_text";
|
---|
623 | }
|
---|
624 | }
|
---|
625 | } # if (indexed_doc)
|
---|
626 |
|
---|
627 | $section = $doc_obj->get_next_section($section);
|
---|
628 | } #while defined section
|
---|
629 | print $handle "$text\n</Document>\n";
|
---|
630 | }
|
---|
631 |
|
---|
632 | sub create_shortname {
|
---|
633 | $self = shift(@_);
|
---|
634 |
|
---|
635 | my ($realname) = @_;
|
---|
636 | #take the first two chars
|
---|
637 | my ($shortname) = $realname =~ /^(\w\w)/;
|
---|
638 | $shortname =~ tr/a-z/A-Z/;
|
---|
639 |
|
---|
640 | #if already used, take the first and third letters and so on
|
---|
641 | $count = 1;
|
---|
642 | while (defined $self->{'indexfieldmap'}->{$shortname}) {
|
---|
643 | if ($realname =~ /^(\w).{$count}(\w)/) {
|
---|
644 | $shortname = "$1$2";
|
---|
645 | $count++;
|
---|
646 | $shortname =~ tr/a-z/A-Z/;
|
---|
647 |
|
---|
648 | }
|
---|
649 | else {
|
---|
650 | $realname =~ s/^.//;
|
---|
651 | $count = 0;
|
---|
652 | }
|
---|
653 | }
|
---|
654 |
|
---|
655 | return $shortname;
|
---|
656 | }
|
---|
657 |
|
---|
658 | 1;
|
---|
659 |
|
---|