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272
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1 # -*- ksh -*-
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2 # Copyright (C) 1998 Free Software Foundation, Inc.
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3
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4 # This file is part of XEmacs.
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5
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6 # XEmacs is free software; you can redistribute it and/or modify it
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7 # under the terms of the GNU General Public License as published by the
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8 # Free Software Foundation; either version 2, or (at your option) any
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9 # later version.
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10
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11 # XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 # for more details.
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15
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16 # You should have received a copy of the GNU General Public License
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17 # along with XEmacs; see the file COPYING. If not, write to
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18 # the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 # Boston, MA 02111-1307, USA.
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20
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21 # Author: Martin Buchholz
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22
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23 # Some useful commands for debugging emacs with gdb 4.16 or better.
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24 # Install this as your .gdbinit file in your home directory,
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25 # or source this file from your .gdbinit
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26 # Configure xemacs with --debug, and compile with -g.
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0
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27 #
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272
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28 # See also the question of the XEmacs FAQ, titled
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29 # "How to Debug an XEmacs problem with a debugger".
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272
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30 #
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31 # This can be used to debug XEmacs no matter how the following are
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32 # specified:
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33
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34 # USE_UNION_TYPE
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35 # USE_MINIMAL_TAGBITS
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36 # USE_INDEXED_LRECORD_IMPLEMENTATION
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37 # LRECORD_(SYMBOL|STRING|VECTOR)
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38
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39 # (the above all have configure equivalents)
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40
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41 # Some functions defined here require a running process, but most
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42 # don't. Considerable effort has been expended to this end.
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43
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44 # See the dbg_ C support code in src/alloc.c that allows the functions
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45 # defined in this file to work correctly.
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0
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46
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47 set print union off
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48 set print pretty off
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49
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272
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50 define decode_object
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51 set $obj = (unsigned long) $arg0
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52 if dbg_USE_MINIMAL_TAGBITS
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53 if $obj & 1
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54 # It's an int
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55 set $val = $obj >> 1
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56 set $type = dbg_Lisp_Type_Int
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57 else
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58 set $type = $obj & dbg_typemask
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59 if $type == dbg_Lisp_Type_Char
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60 set $val = ($obj & dbg_valmask) >> dbg_gctypebits
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61 else
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62 # It's a record pointer
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63 set $val = $obj
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64 end
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65 end
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66 else
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67 # not dbg_USE_MINIMAL_TAGBITS
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68 set $val = $obj & dbg_valmask
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69 set $type = ($obj & dbg_typemask) >> (dbg_valbits + 1)
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70 end
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71
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72 if $type == dbg_Lisp_Type_Record
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73 set $lheader = (struct lrecord_header *) $val
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74 if dbg_USE_INDEXED_LRECORD_IMPLEMENTATION
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75 set $imp = lrecord_implementations_table[$lheader->type]
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76 else
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77 set $imp = $lheader->implementation
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78 end
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79 else
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80 set $imp = -1
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81 end
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82 end
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83
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84 document decode_object
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85 Usage: decode_object lisp_object
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86 Extract implementation information from a Lisp Object.
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87 Defines variables $val, $type and $imp.
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88 end
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89
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90 define xint
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91 decode_object $arg0
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92 print ((long) $val)
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0
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93 end
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94
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272
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95 define xtype
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96 decode_object $arg0
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97 if $type == dbg_Lisp_Type_Int
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98 echo int\n
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99 else
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100 if $type == dbg_Lisp_Type_Char
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101 echo char\n
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102 else
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103 if $type == dbg_Lisp_Type_Symbol
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104 echo symbol\n
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105 else
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106 if $type == dbg_Lisp_Type_String
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107 echo string\n
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108 else
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109 if $type == dbg_Lisp_Type_Vector
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110 echo vector\n
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111 else
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112 if $type == dbg_Lisp_Type_Cons
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113 echo cons\n
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114 else
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115 printf "record type: %s\n", $imp->name
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116 # barf
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117 end
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118 end
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119 end
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120 end
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121 end
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122 end
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123 end
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124
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125 define run-temacs
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284
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126 unset env EMACSLOADPATH
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127 set env EMACSBOOTSTRAPLOADPATH ../lisp/:..
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128 run -batch -l ../lisp/loadup.el run-temacs -q
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272
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129 end
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130
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131 document run-temacs
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132 Usage: run-temacs
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133 Run temacs interactively, like xemacs.
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134 Use this with debugging tools (like purify) that cannot deal with dumping,
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135 or when temacs builds successfully, but xemacs does not.
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136 end
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137
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138 define update-elc
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284
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139 unset env EMACSLOADPATH
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140 set env EMACSBOOTSTRAPLOADPATH ../lisp/:..
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141 run -batch -l ../lisp/update-elc.el
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272
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142 end
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143
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144 document update-elc
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145 Usage: update-elc
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284
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146 Run the core lisp byte compilation part of the build procedure.
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147 Use when debugging temacs, not xemacs!
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148 Use this when temacs builds successfully, but xemacs does not.
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149 end
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150
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151 define dump-temacs
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284
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152 unset env EMACSLOADPATH
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153 set env EMACSBOOTSTRAPLOADPATH ../lisp/:..
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154 run -batch -l ../lisp/loadup.el dump
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272
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155 end
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156
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157 document dump-temacs
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158 Usage: dump-temacs
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159 Run the dumping part of the build procedure.
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160 Use when debugging temacs, not xemacs!
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161 Use this when temacs builds successfully, but xemacs does not.
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162 end
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163
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164 # if you use Purify, do this:
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272
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165 # export PURIFYOPTIONS='-pointer-mask=0x0fffffff'
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166
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272
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167 define ldp
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168 printf "%s", "Lisp => "
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169 call debug_print($arg0)
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170 end
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171
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172 document ldp
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173 Usage: ldp lisp_object
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174 Print a Lisp Object value using the Lisp printer.
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175 Requires a running xemacs process.
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176 end
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177
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178 define lbt
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272
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179 call debug_backtrace()
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180 end
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181
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272
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182 document lbt
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183 Usage: lbt
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184 Print the current Lisp stack trace.
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185 Requires a running xemacs process.
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186 end
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187
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272
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188 define wtype
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189 print $arg0->core.widget_class->core_class.class_name
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0
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190 end
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191
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272
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192 define xtname
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193 print XrmQuarkToString(((Object)($arg0))->object.xrm_name)
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194 end
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195
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272
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196 # GDB's command language makes you want to ...
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197
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272
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198 define pstruct
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199 set $xstruct = (struct $arg0 *) $val
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200 print $xstruct
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201 print *$xstruct
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0
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202 end
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203
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272
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204 define pobj
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205 decode_object $arg0
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206 if $type == dbg_Lisp_Type_Int
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207 printf "Integer: %d\n", $val
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208 else
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209 if $type == dbg_Lisp_Type_Char
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210 if $val < 128
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211 printf "Char: %c\n", $val
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212 else
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213 printf "Char: %d\n", $val
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214 end
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215 else
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216 if $type == dbg_Lisp_Type_String || $imp == lrecord_string
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217 pstruct Lisp_String
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218 else
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219 if $type == dbg_Lisp_Type_Cons || $imp == lrecord_cons
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220 pstruct Lisp_Cons
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221 else
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222 if $type == dbg_Lisp_Type_Symbol || $imp == lrecord_symbol
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223 pstruct Lisp_Symbol
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224 printf "Symbol name: %s\n", $xstruct->name->_data
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225 else
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226 if $type == dbg_Lisp_Type_Vector || $imp == lrecord_vector
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227 pstruct Lisp_Vector
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228 printf "Vector of length %d\n", $xstruct->size
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229 #print *($xstruct->_data) @ $xstruct->size
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230 else
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231 if $imp == lrecord_bit_vector
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232 pstruct Lisp_Bit_Vector
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233 else
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234 if $imp == lrecord_buffer
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235 pstruct buffer
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236 else
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237 if $imp == lrecord_char_table
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238 pstruct Lisp_Char_Table
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239 else
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240 if $imp == lrecord_char_table_entry
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241 pstruct Lisp_Char_Table_Entry
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242 else
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243 if $imp == lrecord_charset
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244 pstruct Lisp_Charset
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245 else
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246 if $imp == lrecord_coding_system
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247 pstruct Lisp_Coding_System
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248 else
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249 if $imp == lrecord_color_instance
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250 pstruct Lisp_Color_Instance
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251 else
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252 if $imp == lrecord_command_builder
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253 pstruct command_builder
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254 else
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255 if $imp == lrecord_compiled_function
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256 pstruct Lisp_Compiled_Function
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257 else
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258 if $imp == lrecord_console
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259 pstruct console
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260 else
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261 if $imp == lrecord_database
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262 pstruct database
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263 else
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264 if $imp == lrecord_device
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265 pstruct device
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266 else
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267 if $imp == lrecord_event
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268 pstruct Lisp_Event
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269 else
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270 if $imp == lrecord_extent
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271 pstruct extent
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272 else
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273 if $imp == lrecord_extent_auxiliary
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274 pstruct extent_auxiliary
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275 else
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276 if $imp == lrecord_extent_info
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277 pstruct extent_info
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278 else
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279 if $imp == lrecord_face
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280 pstruct Lisp_Face
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281 else
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282 if $imp == lrecord_float
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283 pstruct Lisp_Float
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284 else
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285 if $imp == lrecord_font_instance
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286 pstruct Lisp_Font_Instance
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287 else
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288 if $imp == lrecord_frame
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289 pstruct frame
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290 else
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291 if $imp == lrecord_glyph
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292 pstruct Lisp_Glyph
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293 else
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294 if $imp == lrecord_hashtable
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295 pstruct hashtable
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296 else
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297 if $imp == lrecord_image_instance
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298 pstruct Lisp_Image_Instance
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299 else
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300 if $imp == lrecord_keymap
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301 pstruct keymap
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0
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302 else
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272
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303 if $imp == lrecord_lcrecord_list
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304 pstruct lcrecord_list
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305 else
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306 if $imp == lrecord_lstream
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307 pstruct lstream
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0
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308 else
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272
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309 if $imp == lrecord_marker
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310 pstruct Lisp_Marker
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311 else
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312 if $imp == lrecord_opaque
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313 pstruct Lisp_Opaque
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0
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314 else
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272
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315 if $imp == lrecord_opaque_list
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316 pstruct Lisp_Opaque_List
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317 else
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318 if $imp == lrecord_popup_data
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319 pstruct popup_data
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0
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320 else
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272
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321 if $imp == lrecord_process
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322 pstruct Lisp_Process
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323 else
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324 if $imp == lrecord_range_table
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325 pstruct Lisp_Range_Table
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0
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326 else
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272
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327 if $imp == lrecord_specifier
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328 pstruct Lisp_Specifier
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329 else
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330 if $imp == lrecord_subr
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331 pstruct Lisp_Subr
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0
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332 else
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272
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333 if $imp == lrecord_symbol_value_buffer_local
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334 pstruct symbol_value_buffer_local
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335 else
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336 if $imp == lrecord_symbol_value_forward
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337 pstruct symbol_value_forward
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0
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338 else
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272
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339 if $imp == lrecord_symbol_value_lisp_magic
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340 pstruct symbol_value_lisp_magic
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341 else
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342 if $imp == lrecord_symbol_value_varalias
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343 pstruct symbol_value_varalias
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0
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344 else
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272
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345 if $imp == lrecord_toolbar_button
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346 pstruct toolbar_button
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0
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347 else
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272
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348 if $imp == lrecord_tooltalk_message
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349 pstruct Lisp_Tooltalk_Message
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0
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350 else
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272
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351 if $imp == lrecord_tooltalk_pattern
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352 pstruct Lisp_Tooltalk_Pattern
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0
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353 else
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272
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354 if $imp == lrecord_weak_list
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355 pstruct weak_list
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0
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356 else
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272
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357 if $imp == lrecord_window
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358 pstruct window
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359 else
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360 if $imp == lrecord_window_configuration
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361 pstruct window_config
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0
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362 else
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272
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363 echo Unknown Lisp Object type\n
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364 print $arg0
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365 # Barf, gag, retch
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366 end
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367 end
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368 end
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369 end
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370 end
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371 end
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372 end
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373 end
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374 end
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375 end
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376 end
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377 end
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378 end
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379 end
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380 end
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381 end
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382 end
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383 end
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384 end
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385 end
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386 end
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387 end
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388 end
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389 end
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390 end
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391 end
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392 end
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393 end
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394 end
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395 end
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396 end
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397 end
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0
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398 end
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399 end
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400 end
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401 end
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402 end
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403 end
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404 end
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405 end
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406 end
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407 end
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408 end
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409 end
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410 end
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411 end
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412 end
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413 end
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414 end
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415 end
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416 end
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417
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272
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418 document pobj
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419 Usage: pobj lisp_object
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420 Print the internal C structure of a underlying Lisp Object.
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0
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421 end
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