1 | #!/bin/csh -f
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2 | ###########################################################################
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3 | #
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4 | # mgbuild_4.sh -- Script used to build mg text collection in 4 passes.
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5 | # Copyright (C) 1994 Neil Sharman; Modified by tes@kbs 1995
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6 | #
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7 | # This program is free software; you can redistribute it and/or modify
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8 | # it under the terms of the GNU General Public License as published by
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9 | # the Free Software Foundation; either version 2 of the License, or
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10 | # (at your option) any later version.
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11 | #
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12 | # This program is distributed in the hope that it will be useful,
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13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | # GNU General Public License for more details.
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16 | #
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17 | # You should have received a copy of the GNU General Public License
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18 | # along with this program; if not, write to the Free Software
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19 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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20 | #
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21 | #
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22 | ###########################################################################
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23 | #
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24 | # Does an mgbuild in 4 passes instead of 2 passes.
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25 | # This is useful if one does not have as much RAM and a large collection.
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26 | #
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27 |
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28 | set complex = ""
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29 |
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30 | # ************ parse the command line arguments ************
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31 |
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32 | while ($#argv >= 1)
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33 | if ("$1" == "-s" || "$1" == "--source") then
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34 | shift
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35 | if ($#argv >= 1) then
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36 | set source = $1
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37 | shift
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38 | endif
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39 | else if ("$1" == "-g" || "$1" == "--get") then
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40 | shift
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41 | if ($#argv >= 1) then
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42 | set get = $1
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43 | shift
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44 | endif
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45 | else if ("$1" == "-c" || "$1" == "--complex") then
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46 | set complex = "-text"
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47 | shift
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48 | else
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49 | if (! $?text ) then
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50 | set text = $1
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51 | endif
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52 | shift
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53 | endif
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54 |
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55 | end
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56 |
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57 | if (! $?text ) then
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58 | set prog = $0
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59 | echo "USAGE:"
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60 | echo " "$prog:t" [-s config-script] [-g get-program] [-c] source"
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61 | echo ""
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62 | echo " The config-script is only needed if a non-standard build is required."
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63 | echo " The get-program defaults to mg_get if not specified."
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64 | exit 1
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65 | endif
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66 |
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67 | set bindir = `which $0` # find which one we are executing
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68 | set bindir = $bindir:h # use it as the bindir path
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69 |
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70 | # ************ set up shell variables ************
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71 | # Override these by providing a script to source using the -s option
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72 |
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73 | # if $pipe == 1 then pipe in the source text using $get and $text otherwise
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74 | # read the source text directly from the file names specified in $input_files
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75 | set pipe = 1
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76 |
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77 | set get_options = ""
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78 |
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79 |
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80 | if (! $?get ) then
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81 | set complex = "-text"
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82 | set get = $bindir/mg_get $get_options
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83 | endif
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84 |
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85 |
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86 | if (-e $MGDATA/${text}.chunks) then
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87 | set input_files = `cat $MGDATA/${text}.chunks`
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88 | endif
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89 |
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90 | # Set the stemming method
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91 | # Bit 0 = case folding
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92 | # Bit 1 = S stemmer
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93 | set stem_method = 3
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94 |
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95 |
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96 | # [RPAP - Jan 97: Stem Index Change]
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97 | # If do_indexes == 1 then build collection with full indexes to blocked file
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98 | # overriding stem_method (stem_method will be set to 0)
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99 | # Otherwise don't build with indexes
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100 | set do_indexes = 0
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101 |
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102 |
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103 | # whether to build weights or not
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104 | set do_weights = 1
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105 |
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106 | # If do_pass1 == 1 then do pass1 of building a mg database.
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107 | # Otherwise don't do pass1.
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108 | # Text 1st pass
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109 | set do_pass1 = 1
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110 |
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111 | # If do_pass2 == 1 then do pass2 of building a mg database.
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112 | # Otherwise don't do pass2.
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113 | # Text 2nd pass
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114 | set do_pass2 = 1
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115 |
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116 | # If do_pass3 == 1 then do pass3 of building a mg database.
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117 | # Otherwise don't do pass3.
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118 | # Invf 1st pass
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119 | set do_pass3 = 1
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120 |
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121 | # If do_pass4 == 1 then do pass4 of building a mg database.
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122 | # Otherwise don't do pass4.
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123 | # Invf 2nd pass
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124 | set do_pass4 = 1
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125 |
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126 | # Buffer size used by mg_passes
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127 | # Should be big enough to hold largest document
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128 | # In Kilobytes
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129 | set buf_size = 3072
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130 |
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131 | # $invf_mem specifies the amount of memory to use for the pass2 inversion
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132 | set invf_mem = 5
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133 |
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134 | # $num_chunks specifies the number of interium chunks of inverted file that
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135 | # may be written to disc before a merge into the invf file is done
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136 | set num_chunks = 3
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137 |
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138 | # $invf_level specifies the level of the inverted file that will be generated.
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139 | set invf_level = 2
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140 |
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141 |
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142 | # If $strip_sgml == 1 then sgml tags are stripped from the inversion phase.
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143 | # Otherwise sgml tags are kepted.
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144 | set strip_sgml = 1
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145 |
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146 |
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147 | # $trace specifies the interval between trace entries in Mb.
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148 | # If this is not set no trace entries will be generated.
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149 | set trace = 10
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150 |
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151 |
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152 | # $weight_bits specifies the number of bits of precision bo be given to the
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153 | # approximate weights.
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154 | set weight_bits = 6
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155 |
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156 |
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157 | # $mcd specifies the commandline arguments for the mg_compression_dict program
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158 | set mcd = -C
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159 |
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160 |
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161 | # Source the parameter file to modify parameters of the build.
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162 | if ($?source) then
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163 | source ${source}
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164 | endif
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165 |
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166 |
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167 | # [RPAP - Jan 97: Stem Index Change]
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168 | # If do_indexes == 1 then set stem_method = 0
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169 | if ("$do_indexes" == "1") then
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170 | set stem_method = 0
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171 | endif
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172 |
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173 |
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174 | # Generate the collection name.
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175 | set coll_name = ${text}
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176 | if ("$invf_level" == "3") then
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177 | set coll_name = ${text}-p
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178 | endif
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179 |
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180 | # Generate the directory for the collection.
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181 | if (-e $MGDATA/${coll_name}) then
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182 | else
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183 | mkdir $MGDATA/${coll_name}
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184 | endif
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185 |
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186 | # Generate the base name for the collection.
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187 | set bname = ${coll_name}/${coll_name}
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188 |
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189 | # ************ set up pass parameters ************
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190 |
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191 | if ($do_pass1) then
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192 | set pass1_text = (-f ${bname} -T1)
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193 | endif
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194 |
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195 | if ($do_pass2) then
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196 | set pass2_text = (-f ${bname} -T2)
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197 | endif
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198 |
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199 | if ($do_pass3) then
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200 | set pass3_invf = (-f ${bname} -${invf_level} -m ${invf_mem} -s ${stem_method})
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201 | set pass3_invf = (${pass3_invf} -N1)
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202 | endif
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203 |
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204 | if ($do_pass4) then
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205 | set pass4_invf = (-f ${bname} -${invf_level} -N2)
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206 | endif
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207 |
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208 | if ($strip_sgml) then
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209 | set pass1_text = (${pass1_text} -G)
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210 | set pass2_text = (${pass2_text} -G)
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211 | set pass3_invf = (${pass3_invf} -G)
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212 | set pass4_invf = (${pass4_invf} -G)
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213 | endif
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214 |
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215 | if ($?trace) then
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216 | set pass1_text = (${pass1_text} -t ${trace})
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217 | set pass2_text = (${pass2_text} -t ${trace})
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218 | set pass3_invf = (${pass3_invf} -t ${trace})
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219 | set pass4_invf = (${pass4_invf} -t ${trace})
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220 | endif
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221 |
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222 | if ($?trace_name) then
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223 | set pass1_text = (${pass1_text} -n ${trace_name})
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224 | set pass2_text = (${pass2_text} -n ${trace_name})
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225 | set pass3_invf = (${pass3_invf} -n ${trace_name})
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226 | set pass4_invf = (${pass4_invf} -n ${trace_name})
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227 | endif
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228 |
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229 | if ($buf_size) then
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230 | set pass1_text = (${pass1_text} -b ${buf_size})
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231 | set pass2_text = (${pass2_text} -b ${buf_size})
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232 | set pass3_invf = (${pass3_invf} -b ${buf_size})
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233 | set pass4_invf = (${pass4_invf} -b ${buf_size})
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234 | endif
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235 |
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236 | if ($?comp_stats) then
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237 | set pass2_text = (${pass2_text} -C ${comp_stats})
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238 | endif
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239 |
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240 | echo "-----------------------------------"
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241 | echo "`uname -n`, `date`"
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242 | echo "${text} --> ${bname}"
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243 | echo "-----------------------------------"
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244 |
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245 | # ************ init get ************
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246 |
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247 | if ($pipe) then
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248 | if ("$complex" != "") then
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249 | echo "$get $text -init"
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250 | $get $text -init
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251 | if ("$status" != "0") exit 1
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252 | echo "-----------------------------------"
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253 | endif
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254 | endif
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255 |
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256 | # ************************************* T E X T **********************************
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257 |
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258 | # ************ pass 1_text ************
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259 |
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260 | if (${do_pass1}) then
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261 | if ($pipe) then
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262 | if ($?pass1filter) then
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263 | echo "$get $text $complex | $pass1filter | mg_passes ${pass1_text}"
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264 | $get $text $complex| $pass1filter | $bindir/mg_passes ${pass1_text}
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265 | if ("$status" != "0") exit 1
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266 | else
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267 | echo "$get $text $complex | mg_passes ${pass1_text}"
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268 | $get $text $complex| $bindir/mg_passes ${pass1_text}
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269 | if ("$status" != "0") exit 1
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270 | endif
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271 | else
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272 | echo mg_passes ${pass1_text} ${input_files}
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273 | $bindir/mg_passes ${pass1_text} ${input_files}
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274 | if ("$status" != "0") exit 1
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275 | endif
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276 | echo "-----------------------------------"
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277 | endif
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278 |
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279 | # ************ compression dict ************
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280 | if ($do_pass2) then
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281 | echo "mg_compression_dict -f ${bname} ${mcd}"
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282 | $bindir/mg_compression_dict -f ${bname} ${mcd}
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283 | if ("$status" != "0") exit 1
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284 | echo "-----------------------------------"
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285 | endif
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286 |
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287 | # ************ pass 2_text ************
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288 | if (${do_pass2}) then
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289 | if ($pipe) then
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290 | if ($?pass2filter) then
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291 | echo "$get $text $complex | $pass2filter | mg_passes ${pass2_text}"
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292 | $get $text $complex| $pass2filter | $bindir/mg_passes ${pass2_text}
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293 | if ("$status" != "0") exit 1
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294 | else
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295 | echo "$get $text $complex | mg_passes ${pass2_text}"
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296 | $get $text $complex| $bindir/mg_passes ${pass2_text}
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297 | if ("$status" != "0") exit 1
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298 | endif
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299 | else
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300 | echo mg_passes ${pass2_text} ${input_files}
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301 | $bindir/mg_passes ${pass2_text} ${input_files}
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302 | if ("$status" != "0") exit 1
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303 | endif
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304 | echo "-----------------------------------"
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305 | endif
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306 |
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307 | # ************************************* I N V F **********************************
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308 |
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309 | # ************ pass 3_invf ************
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310 | if (${do_pass3}) then
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311 | if ($pipe) then
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312 | if ($?pass3filter) then
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313 | echo "$get $text $complex | $pass3filter | mg_passes ${pass3_invf}"
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314 | $get $text $complex| $pass3filter | $bindir/mg_passes ${pass3_invf}
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315 | if ("$status" != "0") exit 1
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316 | else
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317 | echo "$get $text $complex | mg_passes ${pass3_invf}"
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318 | $get $text $complex| $bindir/mg_passes ${pass3_invf}
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319 | if ("$status" != "0") exit 1
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320 | endif
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321 | else
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322 | echo mg_passes ${pass3_invf} ${input_files}
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323 | $bindir/mg_passes ${pass3_invf} ${input_files}
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324 | if ("$status" != "0") exit 1
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325 | endif
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326 | echo "-----------------------------------"
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327 | endif
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328 |
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329 | # ************ perfect hash ************
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330 | if ($do_pass4) then
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331 | echo "mg_perf_hash_build -f ${bname}"
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332 | $bindir/mg_perf_hash_build -f ${bname}
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333 | if ("$status" != "0") exit 1
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334 |
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335 | echo "-----------------------------------"
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336 | endif
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337 |
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338 | # ************ pass 4_invf ************
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339 | if (${do_pass4}) then
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340 | if ($pipe) then
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341 | if ($?pass4filter) then
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342 | echo "$get $text $complex | $pass4filter | mg_passes ${pass4_invf}"
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343 | $get $text $complex| $pass4filter | $bindir/mg_passes ${pass4_invf}
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344 | if ("$status" != "0") exit 1
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345 | else
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346 | echo "$get $text $complex | mg_passes ${pass4_invf}"
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347 | $get $text $complex| $bindir/mg_passes ${pass4_invf}
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348 | if ("$status" != "0") exit 1
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349 | endif
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350 | else
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351 | echo mg_passes ${pass4_invf} ${input_files}
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352 | $bindir/mg_passes ${pass4_invf} ${input_files}
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353 | if ("$status" != "0") exit 1
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354 | endif
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355 | echo "-----------------------------------"
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356 | endif
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357 |
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358 |
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359 | # ************ build invf dictionary ************
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360 |
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361 | if ($do_pass4) then
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362 | echo "mg_invf_dict -f ${bname} -b 4096"
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363 | $bindir/mg_invf_dict -f ${bname} -b 4096
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364 | if ("$status" != "0") exit 1
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365 | echo "-----------------------------------"
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366 | endif
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367 |
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368 | # ******** build indexes to stem dict *********
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369 |
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370 | # [RPAP - Jan 97: Stem Index Change]
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371 | if ($do_pass4 && "$do_indexes" == "1") then
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372 | echo "mg_stem_idx -f ${bname} -b 4096 -s1"
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373 | $bindir/mg_stem_idx -f ${bname} -b 4096 -s1
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374 | if ("$status" != "0") exit 1
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375 |
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376 | echo ""
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377 |
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378 | echo "mg_stem_idx -f ${bname} -b 4096 -s2"
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379 | $bindir/mg_stem_idx -f ${bname} -b 4096 -s2
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380 | if ("$status" != "0") exit 1
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381 |
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382 | echo ""
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383 |
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384 | echo "mg_stem_idx -f ${bname} -b 4096 -s3"
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385 | $bindir/mg_stem_idx -f ${bname} -b 4096 -s3
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386 | if ("$status" != "0") exit 1
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387 |
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388 | echo "-----------------------------------"
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389 | endif
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390 |
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391 | # ************ build weights ************
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392 |
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393 | if ($do_pass4 && $do_weights) then
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394 | echo "mg_weights_build -f ${bname} -b ${weight_bits} "
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395 | $bindir/mg_weights_build -f ${bname} -b ${weight_bits}
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396 | if ("$status" != "0") exit 1
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397 | echo "-----------------------------------"
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398 | endif
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399 |
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400 | # *******************************************************************************
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401 |
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402 |
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403 | # ************ print out statistics ************
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404 | if ($do_pass1 && $do_pass2 && $do_pass3 && $do_pass4) then
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405 | echo "mgstat -f ${bname} -E"
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406 | $bindir/mgstat -f ${bname} -E
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407 | if ("$status" != "0") exit 1
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408 | endif
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409 |
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410 |
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411 | # ************ cleanup get ************
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412 |
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413 | if ($pipe) then
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414 | if ("$complex" != "") then
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415 | echo "-----------------------------------"
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416 | echo "$get $text -cleanup"
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417 | $get $text -cleanup
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418 | if ("$status" != "0") exit 1
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419 | endif
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420 | endif
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421 |
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422 | echo "-----------------------------------"
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423 | echo "`uname -n`, `date`"
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424 | echo "-----------------------------------"
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425 |
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426 | if ($do_pass2) then
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427 | echo "-- The fast-loading compression dictionary has not been built."
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428 | echo "-- If you wish to build it, execute the following command:"
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429 | echo "-- "$bindir/mg_fast_comp_dict -f ${bname}
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430 |
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431 | echo "-----------------------------------"
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432 | endif
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433 |
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434 | echo ""
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435 |
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