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1 # -*- ksh -*-
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272
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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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2
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23 # You can use this file to debug XEmacs using Sun WorkShop's dbx.
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24 # Add the contents of this file to $HOME/.dbxrc or
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25 # Source the contents of this file with something like:
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380
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26 # if test -r ./dbxrc; then . ./dbxrc; fi
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2
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27
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272
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28 # Some functions defined here require a running process, but most
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29 # don't. Considerable effort has been expended to this end.
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30
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31 # See also the comments in gdbinit.
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32
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33 # See also the question of the XEmacs FAQ, titled
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34 # "How to Debug an XEmacs problem with a debugger".
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35
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2
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36 ignore POLL
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37 ignore IO
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38
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272
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39 document lbt << 'end'
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40 Usage: lbt
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41 Print the current Lisp stack trace.
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42 Requires a running xemacs process.
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43 end
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44
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2
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45 function lbt {
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272
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46 call debug_backtrace()
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2
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47 }
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48
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272
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49 document ldp << 'end'
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50 Usage: ldp lisp_object
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51 Print a Lisp Object value using the Lisp printer.
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52 Requires a running xemacs process.
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53 end
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54
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55 function ldp {
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2
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56 call debug_print ($1);
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57 }
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58
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272
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59 # A bug in dbx prevents string variables from having values beginning with `-'!!
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60 function XEmacsInit {
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371
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61 eval $(echo $(whatis -t `alloc.c`dbg_constants) | \
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62 perl -e 'print "@{[map {s/=(-\d+)/sprintf(q[=0x%x],$1)/oge; /\w+=[0-9a-fx]+/og} <>]}\n"')
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272
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63 xemacs_initted=yes
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371
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64 #printvar dbg_valbits dbg_valmask
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272
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65 }
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66
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67 function printvar {
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68 for i in $*; do eval "echo $i=\$$i"; done
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69 }
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70
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71 document decode_object << 'end'
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72 Usage: decode_object lisp_object
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73 Extract implementation information from a Lisp Object.
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74 Defines variables $val, $type and $imp.
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75 end
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76
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77 # Various dbx bugs cause ugliness in following code
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78 function decode_object {
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380
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79 if test -z "$xemacs_initted"; then XEmacsInit; fi;
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80 if test $dbg_USE_UNION_TYPE = 1; then
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81 # Repeat after me... dbx sux, dbx sux, dbx sux...
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82 # Allow both `pobj Qnil' and `pobj 0x82746834' to work
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83 case $(whatis $1) in
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84 *Lisp_Object*) obj="$[(unsigned long)(($1).i)]";;
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85 *) obj="$[(unsigned long)($1)]";;
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86 esac
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87 else
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88 obj="$[(unsigned long)($1)]";
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89 fi
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272
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90 if test $dbg_USE_MINIMAL_TAGBITS = 1; then
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91 if test $[(int)($obj & 1)] = 1; then
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92 # It's an int
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93 val=$[(long)(((unsigned long long)$obj) >> 1)]
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371
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94 type=$dbg_Lisp_Type_Int
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272
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95 else
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96 type=$[(int)(((void*)$obj) & $dbg_typemask)]
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371
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97 if test $type = $dbg_Lisp_Type_Char; then
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272
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98 val=$[(void*)(long)(((unsigned long long)($obj & $dbg_valmask)) >> $dbg_gctypebits)]
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99 else
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100 # It's a record pointer
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101 val=$[(void*)$obj]
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380
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102 if test "$val" = "(nil)"; then type=null_pointer; fi
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272
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103 fi
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104 fi
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105 else
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106 # not dbg_USE_MINIMAL_TAGBITS
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107 type=$[(int)(((unsigned long long)($obj & $dbg_typemask)) >> ($dbg_valbits + 1))]
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380
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108 if test "$[$type == Lisp_Type_Int]" = 1; then
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109 val=$[(int)($obj & $dbg_valmask)]
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110 elif test "$[$type == Lisp_Type_Char]" = 1; then
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111 val=$[(int)($obj & $dbg_valmask)]
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112 else
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113 val=$[(void*)($obj & $dbg_valmask)]
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114 if test "$val" = "(nil)"; then type=null_pointer; fi
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115 fi
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116 #val=$[(void*)($obj & $dbg_valmask)]
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117 #printvar val type obj
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272
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118 fi
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119
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371
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120 if test $type = $dbg_Lisp_Type_Record; then
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272
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121 typeset lheader="((struct lrecord_header *) $val)"
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122 if test $dbg_USE_INDEXED_LRECORD_IMPLEMENTATION = 1; then
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123 imp=$[(void*)(lrecord_implementations_table[$lheader->type])]
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124 else
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125 imp=$[(void*)($lheader->implementation)]
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126 fi
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127 else
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128 imp="0xdeadbeef"
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129 fi
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371
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130 #printvar obj val type imp
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2
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131 }
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132
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133 function xint {
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272
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134 decode_object "$*"
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135 print (long) ($val)
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136 }
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137
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138 function xtype {
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139 decode_object "$*"
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371
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140 if test $type = $dbg_Lisp_Type_Int; then echo "int"
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141 elif test $type = $dbg_Lisp_Type_Char; then echo "char"
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142 elif test $type = $dbg_Lisp_Type_Symbol; then echo "symbol"
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143 elif test $type = $dbg_Lisp_Type_String; then echo "string"
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144 elif test $type = $dbg_Lisp_Type_Vector; then echo "vector"
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145 elif test $type = $dbg_Lisp_Type_Cons; then echo "cons"
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380
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146 elif test $type = null_pointer; then echo "$type"
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272
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147 else
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148 echo "record type with name: $[((struct lrecord_implementation *)$imp)->name]"
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149 fi
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2
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150 }
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151
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272
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152 document run-temacs << 'end'
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153 Usage: run-temacs
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154 Run temacs interactively, like xemacs.
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155 Use this with debugging tools (like purify) that cannot deal with dumping,
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156 or when temacs builds successfully, but xemacs does not.
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157 end
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158
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272
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159 function run-temacs {
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371
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160 unset EMACSLOADPATH
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161 export EMACSBOOTSTRAPLOADPATH=../lisp/:..
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284
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162 run -batch -l ../lisp/loadup.el run-temacs -q
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2
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163 }
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164
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272
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165 document update-elc << 'end'
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166 Usage: update-elc
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284
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167 Run the core lisp byte compilation part of the build procedure.
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272
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168 Use when debugging temacs, not xemacs!
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169 Use this when temacs builds successfully, but xemacs does not.
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170 end
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171
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172 function update-elc {
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371
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173 unset EMACSLOADPATH
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174 export EMACSBOOTSTRAPLOADPATH=../lisp/:..
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284
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175 run -batch -l ../lisp/update-elc.el
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2
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176 }
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177
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284
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178
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179 function dump-temacs {
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371
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180 unset EMACSLOADPATH
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181 export EMACSBOOTSTRAPLOADPATH=../lisp/:..
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284
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182 run -batch -l ../lisp/loadup.el dump
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183 }
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184
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185 document dump-temacs << 'end'
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186 Usage: dump-temacs
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187 Run the dumping part of the build procedure.
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188 Use when debugging temacs, not xemacs!
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189 Use this when temacs builds successfully, but xemacs does not.
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190 end
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191
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272
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192 function pstruct {
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193 xstruct="((struct $1 *) $val)"
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194 print $xstruct
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195 print *$xstruct
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196 }
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197
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198 function lrecord_type_p {
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199 if eval test -z \"\$lrecord_$1\" && test $imp = $[(void*)(&lrecord_$1)]; then return 0; else return 1; fi
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2
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200 }
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201
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272
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202 document pobj << 'end'
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203 Usage: pobj lisp_object
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204 Print the internal C structure of a underlying Lisp Object.
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205 end
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206
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207 function pobj {
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208 decode_object $1
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371
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209 if test $type = $dbg_Lisp_Type_Int; then
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272
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210 print -f"Integer: %d" $val
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371
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211 elif test $type = $dbg_Lisp_Type_Char; then
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212 if $val < 128; then
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272
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213 print -f"Char: %c" $val
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214 else
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215 print -f"Char: %d" $val
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216 fi
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371
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217 elif test $type = $dbg_Lisp_Type_String || lrecord_type_p string; then
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272
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218 pstruct Lisp_String
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371
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219 elif test $type = $dbg_Lisp_Type_Cons || lrecord_type_p cons; then
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272
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220 pstruct Lisp_Cons
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371
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221 elif test $type = $dbg_Lisp_Type_Symbol || lrecord_type_p symbol; then
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272
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222 pstruct Lisp_Symbol
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223 echo "Symbol name: $[(char *)($xstruct->name->_data)]"
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371
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224 elif test $type = $dbg_Lisp_Type_Vector || lrecord_type_p vector; then
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272
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225 pstruct Lisp_Vector
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226 echo "Vector of length $[$xstruct->size]"
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227 elif lrecord_type_p bit_vector; then
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228 pstruct Lisp_Bit_Vector
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229 elif lrecord_type_p buffer; then
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230 pstruct buffer
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231 elif lrecord_type_p char_table; then
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232 pstruct Lisp_Char_Table
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233 elif lrecord_type_p char_table_entry; then
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234 pstruct Lisp_Char_Table_Entry
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235 elif lrecord_type_p charset; then
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236 pstruct Lisp_Charset
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237 elif lrecord_type_p coding_system; then
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238 pstruct Lisp_Coding_System
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239 elif lrecord_type_p color_instance; then
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240 pstruct Lisp_Color_Instance
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241 elif lrecord_type_p command_builder; then
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242 pstruct command_builder
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243 elif lrecord_type_p compiled_function; then
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244 pstruct Lisp_Compiled_Function
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245 elif lrecord_type_p console; then
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246 pstruct console
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247 elif lrecord_type_p database; then
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380
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248 pstruct Lisp_Database
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272
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249 elif lrecord_type_p device; then
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250 pstruct device
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251 elif lrecord_type_p event; then
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252 pstruct Lisp_Event
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253 elif lrecord_type_p extent; then
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254 pstruct extent
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255 elif lrecord_type_p extent_auxiliary; then
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256 pstruct extent_auxiliary
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257 elif lrecord_type_p extent_info; then
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258 pstruct extent_info
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259 elif lrecord_type_p face; then
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260 pstruct Lisp_Face
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261 elif lrecord_type_p float; then
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262 pstruct Lisp_Float
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263 elif lrecord_type_p font_instance; then
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264 pstruct Lisp_Font_Instance
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265 elif lrecord_type_p frame; then
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266 pstruct frame
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267 elif lrecord_type_p glyph; then
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268 pstruct Lisp_Glyph
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380
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269 elif lrecord_type_p hash_table; then
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270 pstruct Lisp_Hash_Table
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272
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271 elif lrecord_type_p image_instance; then
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272 pstruct Lisp_Image_Instance
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273 elif lrecord_type_p keymap; then
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380
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274 pstruct Lisp_Keymap
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272
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275 elif lrecord_type_p lcrecord_list; then
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276 pstruct lcrecord_list
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277 elif lrecord_type_p lstream; then
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278 pstruct lstream
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279 elif lrecord_type_p marker; then
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280 pstruct Lisp_Marker
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281 elif lrecord_type_p opaque; then
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282 pstruct Lisp_Opaque
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283 elif lrecord_type_p opaque_list; then
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284 pstruct Lisp_Opaque_List
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285 elif lrecord_type_p popup_data; then
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286 pstruct popup_data
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287 elif lrecord_type_p process; then
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288 pstruct Lisp_Process
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289 elif lrecord_type_p range_table; then
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290 pstruct Lisp_Range_Table
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291 elif lrecord_type_p specifier; then
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292 pstruct Lisp_Specifier
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293 elif lrecord_type_p subr; then
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294 pstruct Lisp_Subr
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295 elif lrecord_type_p symbol_value_buffer_local; then
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296 pstruct symbol_value_buffer_local
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297 elif lrecord_type_p symbol_value_forward; then
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298 pstruct symbol_value_forward
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299 elif lrecord_type_p symbol_value_lisp_magic; then
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300 pstruct symbol_value_lisp_magic
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301 elif lrecord_type_p symbol_value_varalias; then
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302 pstruct symbol_value_varalias
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303 elif lrecord_type_p toolbar_button; then
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304 pstruct toolbar_button
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305 elif lrecord_type_p tooltalk_message; then
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306 pstruct Lisp_Tooltalk_Message
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307 elif lrecord_type_p tooltalk_pattern; then
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308 pstruct Lisp_Tooltalk_Pattern
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309 elif lrecord_type_p weak_list; then
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310 pstruct weak_list
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311 elif lrecord_type_p window; then
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312 pstruct window
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313 elif lrecord_type_p window_configuration; then
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314 pstruct window_config
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380
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315 elif test "$type" = "null_pointer"; then
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316 echo "Lisp Object is a null pointer!!"
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272
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317 else
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318 echo "Unknown Lisp Object type"
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319 print $1
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320 fi
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321 }
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2
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322
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323 function pproc {
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324 print *(`process.c`struct Lisp_Process*)$1 ;
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272
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325 ldp "(`process.c`struct Lisp_Process*)$1->name" ;
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326 ldp "(`process.c`struct Lisp_Process*)$1->command" ;
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2
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327 }
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328
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329 dbxenv suppress_startup_message 4.0
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380
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330 dbxenv mt_watchpoints on
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2
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331
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332 function dp_core {
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333 print ((struct x_frame *)(((struct frame*)(Fselected_frame(Qnil)&0x00FFFFFF))->frame_data))->widget->core
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334 }
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335
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336 # Barf!
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337 function print_shell {
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338 print *(`frame-x.c`TopLevelShellRec*) (((struct `frame-x.c`x_frame*) (((struct `frame-x.c`frame*) (Fselected_frame(Qnil)&0x00FFFFFF))->frame_data))->widget)
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339 }
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