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annotate libtommath/dep.pl @ 1663:c795520269f9

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Fallback for key gen without hard link support (#89) Add a non-atomic fallback for key generation on platforms where link() is not permitted (such as most stock Android installs) or on filesystems without hard link support (such as FAT).
author Matt Robinson <git@nerdoftheherd.com>
date Sat, 14 Mar 2020 14:37:35 +0000
parents f52919ffd3b1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/perl
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2 #
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3 # Walk through source, add labels and make classes
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4 #
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5 use strict;
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6 use warnings;
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7
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8 my %deplist;
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9
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10 #open class file and write preamble
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11 open(my $class, '>', 'tommath_class.h') or die "Couldn't open tommath_class.h for writing\n";
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12 print {$class} << 'EOS';
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13 /* LibTomMath, multiple-precision integer library -- Tom St Denis
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14 *
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15 * LibTomMath is a library that provides multiple-precision
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16 * integer arithmetic as well as number theoretic functionality.
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17 *
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18 * The library was designed directly after the MPI library by
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19 * Michael Fromberger but has been written from scratch with
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20 * additional optimizations in place.
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21 *
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22 * SPDX-License-Identifier: Unlicense
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23 */
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24
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25 #if !(defined(LTM1) && defined(LTM2) && defined(LTM3))
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26 #if defined(LTM2)
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27 # define LTM3
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28 #endif
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29 #if defined(LTM1)
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30 # define LTM2
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31 #endif
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32 #define LTM1
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33 #if defined(LTM_ALL)
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34 EOS
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35
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36 foreach my $filename (glob 'bn*.c') {
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37 my $define = $filename;
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38
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39 print "Processing $filename\n";
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40
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41 # convert filename to upper case so we can use it as a define
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42 $define =~ tr/[a-z]/[A-Z]/;
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43 $define =~ tr/\./_/;
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44 print {$class} << "EOS";
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45 # define $define
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46 EOS
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47
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48 # now copy text and apply #ifdef as required
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49 my $apply = 0;
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50 open(my $src, '<', $filename);
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51 open(my $out, '>', 'tmp');
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52
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53 # first line will be the #ifdef
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54 my $line = <$src>;
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55 if ($line =~ /include/) {
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56 print {$out} $line;
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57 } else {
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58 print {$out} << "EOS";
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59 #include "tommath_private.h"
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60 #ifdef $define
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61 /* LibTomMath, multiple-precision integer library -- Tom St Denis
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62 *
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63 * LibTomMath is a library that provides multiple-precision
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64 * integer arithmetic as well as number theoretic functionality.
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65 *
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66 * The library was designed directly after the MPI library by
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67 * Michael Fromberger but has been written from scratch with
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68 * additional optimizations in place.
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69 *
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70 * SPDX-License-Identifier: Unlicense
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71 */
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72 $line
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73 EOS
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74 $apply = 1;
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75 }
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76 while (<$src>) {
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77 if (!($_ =~ /tommath\.h/)) {
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78 print {$out} $_;
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79 }
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80 }
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81 if ($apply == 1) {
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82 print {$out} << 'EOS';
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83 #endif
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84 /* ref: \\HEAD -> master, tag: v1.1.0 */
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85 /* git commit: \\08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
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86 /* commit time: \\2019-01-28 20:32:32 +0100 */
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87 EOS
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88 }
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89 close $src;
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90 close $out;
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91
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92 unlink $filename;
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93 rename 'tmp', $filename;
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94 }
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95 print {$class} << 'EOS';
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96 #endif
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97 EOS
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98
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99 # now do classes
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100
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101 foreach my $filename (glob 'bn*.c') {
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102 open(my $src, '<', $filename) or die "Can't open source file!\n";
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103
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104 # convert filename to upper case so we can use it as a define
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105 $filename =~ tr/[a-z]/[A-Z]/;
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diff changeset
106 $filename =~ tr/\./_/;
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107
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108 print {$class} << "EOS";
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109 #if defined($filename)
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110 EOS
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diff changeset
111 my $list = $filename;
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112
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113 # scan for mp_* and make classes
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114 while (<$src>) {
284
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115 my $line = $_;
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116 while ($line =~ m/(fast_)*(s_)*mp\_[a-z_0-9]*/) {
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117 $line = $';
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118 # now $& is the match, we want to skip over LTM keywords like
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119 # mp_int, mp_word, mp_digit
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120 if (!($& eq 'mp_digit') && !($& eq 'mp_word') && !($& eq 'mp_int') && !($& eq 'mp_min_u32')) {
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121 my $a = $&;
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122 $a =~ tr/[a-z]/[A-Z]/;
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123 $a = 'BN_' . $a . '_C';
284
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124 if (!($list =~ /$a/)) {
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125 print {$class} << "EOS";
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126 # define $a
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127 EOS
284
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128 }
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129 $list = $list . ',' . $a;
284
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130 }
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131 }
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132 }
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133 $deplist{$filename} = $list;
284
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134
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135 print {$class} << 'EOS';
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136 #endif
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137
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138 EOS
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139 close $src;
284
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140 }
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141
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142 print {$class} << 'EOS';
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143 #ifdef LTM3
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144 # define LTM_LAST
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145 #endif
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146
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147 #include <tommath_superclass.h>
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148 #include <tommath_class.h>
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149 #else
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150 # define LTM_LAST
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151 #endif
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152
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153 /* ref: HEAD -> master, tag: v1.1.0 */
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154 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
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155 /* commit time: 2019-01-28 20:32:32 +0100 */
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diff changeset
156 EOS
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diff changeset
157 close $class;
284
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158
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159 #now let's make a cool call graph...
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160
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161 open(my $out, '>', 'callgraph.txt');
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162 my $indent = 0;
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163 my $list;
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164 foreach (sort keys %deplist) {
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165 $list = '';
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166 draw_func($deplist{$_});
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167 print {$out} "\n\n";
284
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168 }
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169 close $out;
284
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170
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diff changeset
171 sub draw_func
284
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diff changeset
172 {
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173 my @funcs = split ',', $_[0];
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174 if ($list =~ /$funcs[0]/) {
284
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diff changeset
175 return;
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diff changeset
176 } else {
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177 $list = $list . $funcs[0];
284
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178 }
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179 if ($indent == 0) {
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180 } elsif ($indent >= 1) {
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181 print {$out} '| ' x ($indent - 1) . '+--->';
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182 }
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183 print {$out} $funcs[0] . "\n";
284
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184 shift @funcs;
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diff changeset
185 my $temp = $list;
284
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diff changeset
186 foreach my $i (@funcs) {
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diff changeset
187 ++$indent;
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188 draw_func($deplist{$i}) if exists $deplist{$i};
284
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diff changeset
189 --$indent;
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diff changeset
190 }
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diff changeset
191 $list = $temp;
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diff changeset
192 return;
284
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193 }
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diff changeset
194