Mercurial > repos > deepakjadmin > mayatool3_test3
view mayachemtools/docs/modules/html/code/PseudoHeap.html @ 9:ab29fa5c8c1f draft default tip
Uploaded
| author | deepakjadmin |
|---|---|
| date | Thu, 15 Dec 2016 14:18:03 -0500 |
| parents | 73ae111cf86f |
| children |
line wrap: on
line source
<html> <head> <title>MayaChemTools:Code:PseudoHeap.pm</title> <meta http-equiv="content-type" content="text/html;charset=utf-8"> <link rel="stylesheet" type="text/css" href="../../../css/MayaChemToolsCode.css"> </head> <body leftmargin="20" rightmargin="20" topmargin="10" bottommargin="10"> <br/> <center> <a href="http://www.mayachemtools.org" title="MayaChemTools Home"><img src="../../../images/MayaChemToolsLogo.gif" border="0" alt="MayaChemTools"></a> </center> <br/> <pre> <a name="package-PseudoHeap-"></a> 1 <span class="k">package </span><span class="i">PseudoHeap</span><span class="sc">;</span> 2 <span class="c">#</span> 3 <span class="c"># $RCSfile: PseudoHeap.pm,v $</span> 4 <span class="c"># $Date: 2015/02/28 20:47:18 $</span> 5 <span class="c"># $Revision: 1.10 $</span> 6 <span class="c">#</span> 7 <span class="c"># Author: Manish Sud <msud@san.rr.com></span> 8 <span class="c">#</span> 9 <span class="c"># Copyright (C) 2015 Manish Sud. All rights reserved.</span> 10 <span class="c">#</span> 11 <span class="c"># This file is part of MayaChemTools.</span> 12 <span class="c">#</span> 13 <span class="c"># MayaChemTools is free software; you can redistribute it and/or modify it under</span> 14 <span class="c"># the terms of the GNU Lesser General Public License as published by the Free</span> 15 <span class="c"># Software Foundation; either version 3 of the License, or (at your option) any</span> 16 <span class="c"># later version.</span> 17 <span class="c">#</span> 18 <span class="c"># MayaChemTools is distributed in the hope that it will be useful, but without</span> 19 <span class="c"># any warranty; without even the implied warranty of merchantability of fitness</span> 20 <span class="c"># for a particular purpose. See the GNU Lesser General Public License for more</span> 21 <span class="c"># details.</span> 22 <span class="c">#</span> 23 <span class="c"># You should have received a copy of the GNU Lesser General Public License</span> 24 <span class="c"># along with MayaChemTools; if not, see <http://www.gnu.org/licenses/> or</span> 25 <span class="c"># write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,</span> 26 <span class="c"># Boston, MA, 02111-1307, USA.</span> 27 <span class="c">#</span> 28 29 <span class="k">use</span> <span class="w">strict</span><span class="sc">;</span> 30 <span class="k">use</span> <span class="w">Carp</span><span class="sc">;</span> 31 <span class="k">use</span> <span class="w">Exporter</span><span class="sc">;</span> 32 <span class="k">use</span> <span class="w">TextUtil</span> <span class="s">(</span><span class="s">)</span><span class="sc">;</span> 33 34 <span class="k">use</span> <span class="w">vars</span> <span class="q">qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS)</span><span class="sc">;</span> 35 36 <span class="i">@ISA</span> = <span class="q">qw(Exporter)</span><span class="sc">;</span> 37 <span class="i">@EXPORT</span> = <span class="q">qw()</span><span class="sc">;</span> 38 <span class="i">@EXPORT_OK</span> = <span class="q">qw()</span><span class="sc">;</span> 39 40 <span class="i">%EXPORT_TAGS</span> = <span class="s">(</span> 41 <span class="w">all</span> <span class="cm">=></span> <span class="s">[</span><span class="i">@EXPORT</span><span class="cm">,</span> <span class="i">@EXPORT_OK</span><span class="s">]</span> 42 <span class="s">)</span><span class="sc">;</span> 43 44 <span class="c"># Setup class variables...</span> 45 <span class="k">my</span><span class="s">(</span><span class="i">$ClassName</span><span class="s">)</span><span class="sc">;</span> 46 <span class="i">_InitializeClass</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> 47 48 <span class="k">use</span> <span class="w">overload</span> <span class="q">'""'</span> <span class="cm">=></span> <span class="q">'StringifyPseudoHeap'</span><span class="sc">;</span> 49 50 <span class="c"># PseudoHeap is designed to support tracking of a specific number of largest or smallest key/value</span> 51 <span class="c"># pairs with numeric or alphanumeric keys along with corresponding scalar or reference values.</span> 52 <span class="c">#</span> 53 <span class="c"># Although PseudoHeap is similar to a heap, it lacks number of key properties of a traditional heap data</span> 54 <span class="c"># structure: no concept of root, parent and child nodes; no ordering of keys in any particular order; no</span> 55 <span class="c"># specific localtion greatest or smallest key.</span> 56 <span class="c">#</span> 57 <span class="c"># The keys are simply stored in a hash with each key poining to an array containing specified values.</span> 58 <span class="c"># The min/max keys are updated during addition and deletion of key/value pairs; these can be retrieved</span> 59 <span class="c"># by accessing corresponding hash.</span> 60 <span class="c">#</span> 61 <span class="c"># Addition and deletion of key/value is also straightforward using hashes. However, min/max keys</span> 62 <span class="c"># need to be identified which is done using Perl sort on the keys.</span> 63 <span class="c">#</span> 64 <span class="c">#</span> 65 <span class="c"># Class constructor...</span> 66 <span class="c">#</span> <a name="new-"></a> 67 <span class="k">sub </span><span class="m">new</span> <span class="s">{</span> 68 <span class="k">my</span><span class="s">(</span><span class="i">$Class</span><span class="cm">,</span> <span class="i">%NamesAndValues</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 69 70 <span class="c"># Initialize object...</span> 71 <span class="k">my</span> <span class="i">$This</span> = <span class="s">{</span><span class="s">}</span><span class="sc">;</span> 72 <span class="k">bless</span> <span class="i">$This</span><span class="cm">,</span> <span class="k">ref</span><span class="s">(</span><span class="i">$Class</span><span class="s">)</span> || <span class="i">$Class</span><span class="sc">;</span> 73 <span class="i">$This</span><span class="i">->_InitializePseudoHeap</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> 74 75 <span class="i">$This</span><span class="i">->_InitializePseudoHeapProperties</span><span class="s">(</span><span class="i">%NamesAndValues</span><span class="s">)</span><span class="sc">;</span> 76 77 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 78 <span class="s">}</span> 79 80 <span class="c"># Initialize object data...</span> 81 <span class="c">#</span> <a name="_InitializePseudoHeap-"></a> 82 <span class="k">sub </span><span class="m">_InitializePseudoHeap</span> <span class="s">{</span> 83 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 84 85 <span class="c"># Type of pseudo heap:</span> 86 <span class="c">#</span> 87 <span class="c"># KeepTopN - Keep track of a specified number largest of key/value pairs</span> 88 <span class="c"># KeepBottomN - Keep track of a specified number smallest of key/value pairs</span> 89 <span class="c">#</span> 90 <span class="i">$This</span>->{<span class="w">Type</span>} = <span class="k">undef</span><span class="sc">;</span> 91 92 <span class="c"># Type of keys: Numeric or Alphanumeric</span> 93 <span class="c">#</span> 94 <span class="c"># The value of KeyType determines comparison function used to sort and</span> 95 <span class="c"># and compare keys for a specific heap type as shown below:</span> 96 <span class="c">#</span> 97 <span class="c"># Type KeyType Comp Sorting</span> 98 <span class="c">#</span> 99 <span class="c"># KeepTopN Numeric < Descending</span> 100 <span class="c"># KeepTopN AlphaNumeric lt Descending</span> 101 <span class="c"># KeepBottomN Numeric > Ascending</span> 102 <span class="c"># KeepBottomN AlphaNumeric gt Ascending</span> 103 <span class="c">#</span> 104 <span class="i">$This</span>->{<span class="w">KeyType</span>} = <span class="k">undef</span><span class="sc">;</span> 105 106 <span class="c"># Maximum number of largest or smallest key/value pairs to keep...</span> 107 <span class="c">#</span> 108 <span class="i">$This</span>->{<span class="w">MaxSize</span>} = <span class="n">10</span><span class="sc">;</span> 109 110 <span class="c"># Keys and values associated with each key as an array...</span> 111 <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> 112 113 <span class="c"># Min and max keys...</span> 114 <span class="i">$This</span>->{<span class="w">MinKey</span>} = <span class="k">undef</span><span class="sc">;</span> 115 <span class="i">$This</span>->{<span class="w">MaxKey</span>} = <span class="k">undef</span><span class="sc">;</span> 116 117 <span class="c"># Number of key/valur pairs currently present...</span> 118 <span class="i">$This</span>->{<span class="w">CurrentSize</span>} = <span class="n">0</span><span class="sc">;</span> 119 120 <span class="c"># Number of keys currently present where each key correspond to multiple values...</span> 121 <span class="i">$This</span>->{<span class="w">KeysCount</span>} = <span class="n">0</span><span class="sc">;</span> 122 <span class="s">}</span> 123 124 <span class="c"># Initialize class ...</span> <a name="_InitializeClass-"></a> 125 <span class="k">sub </span><span class="m">_InitializeClass</span> <span class="s">{</span> 126 <span class="c">#Class name...</span> 127 <span class="i">$ClassName</span> = <span class="w">__PACKAGE__</span><span class="sc">;</span> 128 129 <span class="s">}</span> 130 131 <span class="c"># Initialize object properties....</span> 132 <span class="c">#</span> <a name="_InitializePseudoHeapProperties-"></a> 133 <span class="k">sub </span><span class="m">_InitializePseudoHeapProperties</span> <span class="s">{</span> 134 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">%NamesAndValues</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 135 <span class="k">my</span><span class="s">(</span><span class="i">$Name</span><span class="cm">,</span> <span class="i">$Value</span><span class="cm">,</span> <span class="i">$MethodName</span><span class="s">)</span><span class="sc">;</span> 136 137 <span class="k">while</span> <span class="s">(</span><span class="s">(</span><span class="i">$Name</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span> = <span class="k">each</span> <span class="i">%NamesAndValues</span><span class="s">)</span> <span class="s">{</span> 138 <span class="i">$MethodName</span> = <span class="q">"Set${Name}"</span><span class="sc">;</span> 139 <span class="i">$This</span><span class="i">->$MethodName</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> 140 <span class="s">}</span> 141 142 <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$NamesAndValues</span>{<span class="w">Type</span>}<span class="s">)</span> <span class="s">{</span> 143 <span class="w">croak</span> <span class="q">"Error: ${ClassName}->New: Object can't be instantiated without specifying Type..."</span><span class="sc">;</span> 144 <span class="s">}</span> 145 146 <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$NamesAndValues</span>{<span class="w">KeyType</span>}<span class="s">)</span> <span class="s">{</span> 147 <span class="w">croak</span> <span class="q">"Error: ${ClassName}->New: Object can't be instantiated without specifying KeyType..."</span><span class="sc">;</span> 148 <span class="s">}</span> 149 <span class="s">}</span> 150 151 <span class="c"># Set heap type...</span> 152 <span class="c">#</span> <a name="SetType-"></a> 153 <span class="k">sub </span><span class="m">SetType</span> <span class="s">{</span> 154 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Type</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 155 156 <span class="k">if</span> <span class="s">(</span><span class="k">defined</span> <span class="i">$This</span>->{<span class="w">Type</span>}<span class="s">)</span> <span class="s">{</span> 157 <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetType: Can't change Type..."</span><span class="sc">;</span> 158 <span class="s">}</span> 159 160 <span class="k">if</span> <span class="s">(</span><span class="i">$Type</span> !~ <span class="q">/^(KeepTopN|KeepBottomN)$/i</span><span class="s">)</span> <span class="s">{</span> 161 <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetType: Unknown PseudoHeap type: $Type; Supported types: KeepTopN or KeepBottomN..."</span><span class="sc">;</span> 162 <span class="s">}</span> 163 <span class="i">$This</span>->{<span class="w">Type</span>} = <span class="i">$Type</span><span class="sc">;</span> 164 165 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 166 <span class="s">}</span> 167 168 <span class="c"># Get heap type..</span> 169 <span class="c">#</span> <a name="GetType-"></a> 170 <span class="k">sub </span><span class="m">GetType</span> <span class="s">{</span> 171 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 172 173 <span class="k">return</span> <span class="k">defined</span> <span class="i">$This</span>->{<span class="w">Type</span>} ? <span class="i">$This</span>->{<span class="w">Type</span>} <span class="co">:</span> <span class="q">'None'</span><span class="sc">;</span> 174 <span class="s">}</span> 175 176 <span class="c"># Set key type...</span> 177 <span class="c">#</span> <a name="SetKeyType-"></a> 178 <span class="k">sub </span><span class="m">SetKeyType</span> <span class="s">{</span> 179 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$KeyType</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 180 181 <span class="k">if</span> <span class="s">(</span><span class="k">defined</span> <span class="i">$This</span>->{<span class="w">KeyType</span>}<span class="s">)</span> <span class="s">{</span> 182 <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetType: Can't change KeyType..."</span><span class="sc">;</span> 183 <span class="s">}</span> 184 185 <span class="k">if</span> <span class="s">(</span><span class="i">$KeyType</span> !~ <span class="q">/^(Numeric|Alphanumeric)$/i</span><span class="s">)</span> <span class="s">{</span> 186 <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetType: Unknown PseudoHeap key type: $KeyType; Supported key types: Numeric or Alphanumeric..."</span><span class="sc">;</span> 187 <span class="s">}</span> 188 <span class="i">$This</span>->{<span class="w">KeyType</span>} = <span class="i">$KeyType</span><span class="sc">;</span> 189 190 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 191 <span class="s">}</span> 192 193 <span class="c"># Get key type..</span> 194 <span class="c">#</span> <a name="GetKeyType-"></a> 195 <span class="k">sub </span><span class="m">GetKeyType</span> <span class="s">{</span> 196 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 197 198 <span class="k">return</span> <span class="k">defined</span> <span class="i">$This</span>->{<span class="w">KeyType</span>} ? <span class="i">$This</span>->{<span class="w">KeyType</span>} <span class="co">:</span> <span class="q">'None'</span><span class="sc">;</span> 199 <span class="s">}</span> 200 201 <span class="c"># Add a key/value pair...</span> 202 <span class="c">#</span> <a name="AddKeyValuePair-"></a> 203 <span class="k">sub </span><span class="m">AddKeyValuePair</span> <span class="s">{</span> 204 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 205 206 <span class="k">if</span> <span class="s">(</span>!<span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span> && <span class="k">defined</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> 207 <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->AddKeyValuePair: No key added: Both key and value must be defined..."</span><span class="sc">;</span> 208 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> 209 <span class="s">}</span> 210 211 <span class="i">$This</span><span class="i">->_AddKeyValuePair</span><span class="s">(</span><span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> 212 213 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 214 <span class="s">}</span> 215 216 <span class="c"># Add multiple key/value pairs...</span> 217 <span class="c">#</span> <a name="AddKeyValuePairs-"></a> 218 <span class="k">sub </span><span class="m">AddKeyValuePairs</span> <span class="s">{</span> 219 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">@KeyValuePairs</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 220 221 <span class="k">if</span> <span class="s">(</span>!<span class="i">@KeyValuePairs</span><span class="s">)</span> <span class="s">{</span> 222 <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->AddKeyValuePairs: No keys added: Key/Value pairs list is empty..."</span><span class="sc">;</span> 223 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> 224 <span class="s">}</span> 225 <span class="k">if</span> <span class="s">(</span><span class="i">@KeyValuePairs</span> % <span class="n">2</span><span class="s">)</span> <span class="s">{</span> 226 <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->AddKeyValuePairs: No keys pairs added: Invalid key/value pairs data: Input list must contain even number of values..."</span><span class="sc">;</span> 227 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> 228 <span class="s">}</span> 229 230 <span class="k">my</span><span class="s">(</span><span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="cm">,</span> <span class="i">$Index</span><span class="s">)</span><span class="sc">;</span> 231 <span class="k">for</span> <span class="s">(</span><span class="i">$Index</span> = <span class="n">0</span><span class="sc">;</span> <span class="i">$Index</span> < <span class="i">$#KeyValuePairs</span><span class="sc">;</span> <span class="i">$Index</span> += <span class="n">2</span><span class="s">)</span> <span class="s">{</span> 232 <span class="i">$Key</span> = <span class="i">$KeyValuePairs</span>[<span class="i">$Index</span>]<span class="sc">;</span> <span class="i">$Value</span> = <span class="i">$KeyValuePairs</span>[<span class="i">$Index</span> + <span class="n">1</span>]<span class="sc">;</span> 233 <span class="i">$This</span><span class="i">->AddKeyValuePair</span><span class="s">(</span><span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> 234 <span class="s">}</span> 235 236 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 237 <span class="s">}</span> 238 239 <span class="c"># Delete specified keys along with all associated values for each key...</span> 240 <span class="c">#</span> <a name="DeleteKeys-"></a> 241 <span class="k">sub </span><span class="m">DeleteKeys</span> <span class="s">{</span> 242 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">@Keys</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 243 244 <span class="k">if</span> <span class="s">(</span>!<span class="i">@Keys</span><span class="s">)</span> <span class="s">{</span> 245 <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->DeleteKeys: No keys deleted: Keys list is empty..."</span><span class="sc">;</span> 246 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> 247 <span class="s">}</span> 248 <span class="k">my</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span><span class="sc">;</span> 249 <span class="k">for</span> <span class="i">$Key</span> <span class="s">(</span><span class="i">@Keys</span><span class="s">)</span> <span class="s">{</span> 250 <span class="i">$This</span><span class="i">->DeleteKey</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span><span class="sc">;</span> 251 <span class="s">}</span> 252 253 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 254 <span class="s">}</span> 255 256 <span class="c"># Delete a sepcified key along with all of its associated values...</span> 257 <span class="c">#</span> <a name="DeleteKey-"></a> 258 <span class="k">sub </span><span class="m">DeleteKey</span> <span class="s">{</span> 259 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 260 261 <span class="k">if</span> <span class="s">(</span>!<span class="k">defined</span> <span class="i">$Key</span> <span class="s">)</span> <span class="s">{</span> 262 <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->DeleteKey: No key deleted: Key must be specified..."</span><span class="sc">;</span> 263 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> 264 <span class="s">}</span> 265 266 <span class="k">return</span> <span class="i">$This</span><span class="i">->_DeleteKey</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span><span class="sc">;</span> 267 <span class="s">}</span> 268 269 <span class="c"># Delete min key along with all of its associated values...</span> 270 <span class="c">#</span> <a name="DeleteMinKey-"></a> 271 <span class="k">sub </span><span class="m">DeleteMinKey</span> <span class="s">{</span> 272 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 273 274 <span class="k">return</span> <span class="i">$This</span><span class="i">->DeleteKey</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">MinKey</span>}<span class="s">)</span><span class="sc">;</span> 275 <span class="s">}</span> 276 277 <span class="c"># Delete max key along with all of its associated values...</span> 278 <span class="c">#</span> <a name="DeleteMaxKey-"></a> 279 <span class="k">sub </span><span class="m">DeleteMaxKey</span> <span class="s">{</span> 280 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 281 282 <span class="k">return</span> <span class="i">$This</span><span class="i">->DeleteKey</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">MaxKey</span>}<span class="s">)</span><span class="sc">;</span> 283 <span class="s">}</span> 284 285 <span class="c"># Set max size...</span> 286 <span class="c">#</span> <a name="SetMaxSize-"></a> 287 <span class="k">sub </span><span class="m">SetMaxSize</span> <span class="s">{</span> 288 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Size</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 289 290 <span class="k">if</span> <span class="s">(</span>!<span class="i">TextUtil::IsPositiveInteger</span><span class="s">(</span><span class="i">$Size</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> 291 <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetMaxSize: Max size value, $Size, is not valid: It must be a positive integer..."</span><span class="sc">;</span> 292 <span class="s">}</span> 293 294 <span class="k">if</span> <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">MinKey</span>}<span class="s">)</span> || <span class="k">defined</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">MaxKey</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span> 295 <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetMaxSize: Can't change max size: Keys are already present..."</span><span class="sc">;</span> 296 <span class="s">}</span> 297 298 <span class="i">$This</span>->{<span class="w">MaxSize</span>} = <span class="i">$Size</span><span class="sc">;</span> 299 300 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 301 <span class="s">}</span> 302 303 <span class="c"># Get max size...</span> 304 <span class="c">#</span> <a name="GetMaxSize-"></a> 305 <span class="k">sub </span><span class="m">GetMaxSize</span> <span class="s">{</span> 306 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 307 308 <span class="k">return</span> <span class="i">$This</span>->{<span class="w">MaxMaxSize</span>}<span class="sc">;</span> 309 <span class="s">}</span> 310 311 <span class="c"># Get current size...</span> 312 <span class="c">#</span> <a name="GetCurrentSize-"></a> 313 <span class="k">sub </span><span class="m">GetCurrentSize</span> <span class="s">{</span> 314 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 315 316 <span class="k">return</span> <span class="i">$This</span>->{<span class="w">CurrentSize</span>}<span class="sc">;</span> 317 <span class="s">}</span> 318 319 <span class="c"># Get min key...</span> 320 <span class="c">#</span> <a name="GetMinKey-"></a> 321 <span class="k">sub </span><span class="m">GetMinKey</span> <span class="s">{</span> 322 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 323 324 <span class="k">return</span> <span class="k">defined</span> <span class="i">$This</span>->{<span class="w">MinKey</span>} ? <span class="i">$This</span>->{<span class="w">MinKey</span>} <span class="co">:</span> <span class="q">'None'</span><span class="sc">;</span> 325 <span class="s">}</span> 326 327 <span class="c"># Get max key...</span> 328 <span class="c">#</span> <a name="GetMaxKey-"></a> 329 <span class="k">sub </span><span class="m">GetMaxKey</span> <span class="s">{</span> 330 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 331 332 <span class="k">return</span> <span class="k">defined</span> <span class="i">$This</span>->{<span class="w">MaxKey</span>} ? <span class="i">$This</span>->{<span class="w">MaxKey</span>} <span class="co">:</span> <span class="q">'None'</span><span class="sc">;</span> 333 <span class="s">}</span> 334 335 <span class="c"># Get keys...</span> 336 <span class="c">#</span> <a name="GetKeys-"></a> 337 <span class="k">sub </span><span class="m">GetKeys</span> <span class="s">{</span> 338 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 339 340 <span class="k">return</span> <span class="k">wantarray</span> ? <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}} <span class="co">:</span> <span class="k">scalar</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}}<span class="sc">;</span> 341 <span class="s">}</span> 342 343 <span class="c"># Get sorted keys...</span> 344 <span class="c">#</span> <a name="GetSortedKeys-"></a> 345 <span class="k">sub </span><span class="m">GetSortedKeys</span> <span class="s">{</span> 346 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 347 <span class="k">my</span><span class="s">(</span><span class="i">@SortedKeys</span><span class="s">)</span><span class="sc">;</span> 348 349 <span class="i">@SortedKeys</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> 350 <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">Type</span>} =~ <span class="q">/^KeepTopN$/i</span><span class="s">)</span> <span class="s">{</span> 351 <span class="i">@SortedKeys</span> = <span class="s">(</span><span class="i">$This</span>->{<span class="w">KeyType</span>} =~ <span class="q">/^Numeric$/i</span><span class="s">)</span> ? <span class="s">(</span><span class="k">sort</span> <span class="s">{</span> <span class="i">$b</span> <=> <span class="i">$a</span> <span class="s">}</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}}<span class="s">)</span> <span class="co">:</span> <span class="s">(</span><span class="k">sort</span> <span class="s">{</span> <span class="i">$b</span> <span class="k">cmp</span> <span class="i">$a</span> <span class="s">}</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}}<span class="s">)</span><span class="sc">;</span> 352 <span class="s">}</span> 353 <span class="k">elsif</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">Type</span>} =~ <span class="q">/^KeepBottomN$/i</span><span class="s">)</span> <span class="s">{</span> 354 <span class="i">@SortedKeys</span> = <span class="s">(</span><span class="i">$This</span>->{<span class="w">KeyType</span>} =~ <span class="q">/^Numeric$/i</span><span class="s">)</span> ? <span class="s">(</span><span class="k">sort</span> <span class="s">{</span> <span class="i">$a</span> <=> <span class="i">$b</span> <span class="s">}</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}}<span class="s">)</span> <span class="co">:</span> <span class="s">(</span><span class="k">sort</span> <span class="s">{</span> <span class="i">$a</span> <span class="k">cmp</span> <span class="i">$b</span> <span class="s">}</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}}<span class="s">)</span><span class="sc">;</span> 355 <span class="s">}</span> 356 357 <span class="k">return</span> <span class="k">wantarray</span> ? <span class="i">@SortedKeys</span> <span class="co">:</span> <span class="k">scalar</span> <span class="i">@SortedKeys</span><span class="sc">;</span> 358 <span class="s">}</span> 359 360 <span class="c"># Get values associated with a specified key...</span> <a name="GetKeyValues-"></a> 361 <span class="k">sub </span><span class="m">GetKeyValues</span> <span class="s">{</span> 362 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 363 <span class="k">my</span><span class="s">(</span><span class="i">@KeyValues</span><span class="s">)</span><span class="sc">;</span> 364 365 <span class="i">@KeyValues</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> 366 <span class="k">if</span> <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span> && <span class="k">exists</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span> 367 <span class="i">@KeyValues</span> = <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}}<span class="sc">;</span> 368 <span class="s">}</span> 369 <span class="k">return</span> <span class="k">wantarray</span> ? <span class="i">@KeyValues</span> <span class="co">:</span> <span class="k">scalar</span> <span class="i">@KeyValues</span><span class="sc">;</span> 370 <span class="s">}</span> 371 372 <span class="c"># Add key/value pair...</span> 373 <span class="c">#</span> <a name="_AddKeyValuePair-"></a> 374 <span class="k">sub </span><span class="m">_AddKeyValuePair</span><span class="s">{</span> 375 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 376 377 <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">CurrentSize</span>} < <span class="i">$This</span>->{<span class="w">MaxSize</span>}<span class="s">)</span> <span class="s">{</span> 378 <span class="k">return</span> <span class="i">$This</span><span class="i">->_AppendKeyValuePair</span><span class="s">(</span><span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> 379 <span class="s">}</span> 380 <span class="k">else</span> <span class="s">{</span> 381 <span class="k">return</span> <span class="i">$This</span><span class="i">->_InsertKeyValuePair</span><span class="s">(</span><span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> 382 <span class="s">}</span> 383 <span class="s">}</span> 384 385 <span class="c"># Append key/value pair...</span> 386 <span class="c">#</span> <a name="_AppendKeyValuePair-"></a> 387 <span class="k">sub </span><span class="m">_AppendKeyValuePair</span> <span class="s">{</span> 388 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 389 390 <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}<span class="s">)</span> <span class="s">{</span> 391 <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> 392 <span class="i">$This</span>->{<span class="w">KeysCount</span>} += <span class="n">1</span><span class="sc">;</span> 393 394 <span class="i">$This</span><span class="i">->_CompareAndSetMinKey</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span><span class="sc">;</span> 395 <span class="i">$This</span><span class="i">->_CompareAndSetMaxKey</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span><span class="sc">;</span> 396 <span class="s">}</span> 397 398 <span class="k">push</span> <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}}<span class="cm">,</span> <span class="i">$Value</span><span class="sc">;</span> 399 <span class="i">$This</span>->{<span class="w">CurrentSize</span>} += <span class="n">1</span><span class="sc">;</span> 400 401 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 402 <span class="s">}</span> 403 404 <span class="c"># Insert key/value pair...</span> 405 <span class="c">#</span> <a name="_InsertKeyValuePair-"></a> 406 <span class="k">sub </span><span class="m">_InsertKeyValuePair</span> <span class="s">{</span> 407 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 408 409 <span class="c"># Is this key need to be inserted?</span> 410 <span class="k">if</span> <span class="s">(</span>!<span class="i">$This</span><span class="i">->_IsKeyNeedToBeInserted</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> 411 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 412 <span class="s">}</span> 413 414 <span class="c"># Insert key/value pair...</span> 415 <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}<span class="s">)</span> <span class="s">{</span> 416 <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> 417 <span class="i">$This</span>->{<span class="w">KeysCount</span>} += <span class="n">1</span><span class="sc">;</span> 418 <span class="s">}</span> 419 <span class="k">push</span> <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}}<span class="cm">,</span> <span class="i">$Value</span><span class="sc">;</span> 420 <span class="i">$This</span>->{<span class="w">CurrentSize</span>} += <span class="n">1</span><span class="sc">;</span> 421 422 <span class="c"># Remove min or max key/value pair along with its update...</span> 423 <span class="k">my</span><span class="s">(</span><span class="i">$KeyToDetele</span><span class="s">)</span><span class="sc">;</span> 424 425 <span class="i">$KeyToDetele</span> = <span class="s">(</span><span class="i">$This</span>->{<span class="w">Type</span>} =~ <span class="q">/^KeepTopN$/i</span><span class="s">)</span> ? <span class="i">$This</span>->{<span class="w">MinKey</span>} <span class="co">:</span> <span class="i">$This</span>->{<span class="w">MaxKey</span>}<span class="sc">;</span> 426 <span class="i">$This</span><span class="i">->_DeleteKeyValuePair</span><span class="s">(</span><span class="i">$KeyToDetele</span><span class="s">)</span><span class="sc">;</span> 427 428 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 429 <span class="s">}</span> 430 431 <span class="c"># Check whether it makes sense to insert specified key...</span> 432 <span class="c">#</span> <a name="_IsKeyNeedToBeInserted-"></a> 433 <span class="k">sub </span><span class="m">_IsKeyNeedToBeInserted</span> <span class="s">{</span> 434 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 435 436 <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">Type</span>} =~ <span class="q">/^KeepTopN$/i</span><span class="s">)</span> <span class="s">{</span> 437 <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">KeyType</span>} =~ <span class="q">/^Numeric$/i</span><span class="s">)</span> <span class="s">{</span> 438 <span class="k">return</span> <span class="s">(</span><span class="i">$Key</span> < <span class="i">$This</span>->{<span class="w">MinKey</span>}<span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="s">(</span><span class="s">(</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">KeysCount</span>} == <span class="n">1</span><span class="s">)</span> && <span class="s">(</span><span class="i">$This</span>->{<span class="w">MinKey</span>} == <span class="i">$Key</span><span class="s">)</span><span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="n">1</span><span class="s">)</span><span class="sc">;</span> 439 <span class="s">}</span> 440 <span class="k">else</span> <span class="s">{</span> 441 <span class="k">return</span> <span class="s">(</span><span class="i">$Key</span> <span class="k">lt</span> <span class="i">$This</span>->{<span class="w">MinKey</span>}<span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="s">(</span><span class="s">(</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">KeysCount</span>} == <span class="n">1</span><span class="s">)</span> && <span class="s">(</span><span class="i">$This</span>->{<span class="w">MinKey</span>} <span class="k">eq</span> <span class="i">$Key</span><span class="s">)</span><span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="n">1</span><span class="s">)</span><span class="sc">;</span> 442 <span class="s">}</span> 443 <span class="s">}</span> 444 <span class="k">elsif</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">Type</span>} =~ <span class="q">/^KeepBottomN$/i</span><span class="s">)</span> <span class="s">{</span> 445 <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">KeyType</span>} =~ <span class="q">/^Numeric$/i</span><span class="s">)</span> <span class="s">{</span> 446 <span class="k">return</span> <span class="s">(</span><span class="i">$Key</span> > <span class="i">$This</span>->{<span class="w">MaxKey</span>}<span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="s">(</span><span class="s">(</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">KeysCount</span>} == <span class="n">1</span><span class="s">)</span> && <span class="s">(</span><span class="i">$This</span>->{<span class="w">MaxKey</span>} == <span class="i">$Key</span><span class="s">)</span><span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="n">1</span><span class="s">)</span><span class="sc">;</span> 447 <span class="s">}</span> 448 <span class="k">else</span> <span class="s">{</span> 449 <span class="k">return</span> <span class="s">(</span><span class="i">$Key</span> <span class="k">gt</span> <span class="i">$This</span>->{<span class="w">MaxKey</span>}<span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="s">(</span><span class="s">(</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">KeysCount</span>} == <span class="n">1</span><span class="s">)</span> && <span class="s">(</span><span class="i">$This</span>->{<span class="w">MaxKey</span>} <span class="k">eq</span> <span class="i">$Key</span><span class="s">)</span><span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="n">1</span><span class="s">)</span><span class="sc">;</span> 450 <span class="s">}</span> 451 <span class="s">}</span> 452 453 <span class="k">return</span> <span class="n">1</span><span class="sc">;</span> 454 <span class="s">}</span> 455 456 <span class="c"># Set min key...</span> 457 <span class="c">#</span> <a name="_CompareAndSetMinKey-"></a> 458 <span class="k">sub </span><span class="m">_CompareAndSetMinKey</span> <span class="s">{</span> 459 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 460 461 <span class="k">if</span> <span class="s">(</span>!<span class="k">defined</span> <span class="i">$This</span>->{<span class="w">MinKey</span>}<span class="s">)</span> <span class="s">{</span> 462 <span class="i">$This</span>->{<span class="w">MinKey</span>} = <span class="i">$Key</span><span class="sc">;</span> 463 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 464 <span class="s">}</span> 465 466 <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">KeyType</span>} =~ <span class="q">/^Numeric$/i</span><span class="s">)</span> <span class="s">{</span> 467 <span class="k">if</span> <span class="s">(</span><span class="i">$Key</span> < <span class="i">$This</span>->{<span class="w">MinKey</span>}<span class="s">)</span> <span class="s">{</span> 468 <span class="i">$This</span>->{<span class="w">MinKey</span>} = <span class="i">$Key</span><span class="sc">;</span> 469 <span class="s">}</span> 470 <span class="s">}</span> 471 <span class="k">else</span> <span class="s">{</span> 472 <span class="k">if</span> <span class="s">(</span><span class="i">$Key</span> <span class="k">lt</span> <span class="i">$This</span>->{<span class="w">MinKey</span>}<span class="s">)</span> <span class="s">{</span> 473 <span class="i">$This</span>->{<span class="w">MinKey</span>} = <span class="i">$Key</span><span class="sc">;</span> 474 <span class="s">}</span> 475 <span class="s">}</span> 476 477 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 478 <span class="s">}</span> 479 480 <span class="c"># Set max key...</span> 481 <span class="c">#</span> <a name="_CompareAndSetMaxKey-"></a> 482 <span class="k">sub </span><span class="m">_CompareAndSetMaxKey</span> <span class="s">{</span> 483 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 484 485 <span class="k">if</span> <span class="s">(</span>!<span class="k">defined</span> <span class="i">$This</span>->{<span class="w">MaxKey</span>}<span class="s">)</span> <span class="s">{</span> 486 <span class="i">$This</span>->{<span class="w">MaxKey</span>} = <span class="i">$Key</span><span class="sc">;</span> 487 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 488 <span class="s">}</span> 489 490 <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">KeyType</span>} =~ <span class="q">/^Numeric$/i</span><span class="s">)</span> <span class="s">{</span> 491 <span class="k">if</span> <span class="s">(</span><span class="i">$Key</span> > <span class="i">$This</span>->{<span class="w">MaxKey</span>}<span class="s">)</span> <span class="s">{</span> 492 <span class="i">$This</span>->{<span class="w">MaxKey</span>} = <span class="i">$Key</span><span class="sc">;</span> 493 <span class="s">}</span> 494 <span class="s">}</span> 495 <span class="k">else</span> <span class="s">{</span> 496 <span class="k">if</span> <span class="s">(</span><span class="i">$Key</span> <span class="k">gt</span> <span class="i">$This</span>->{<span class="w">MaxKey</span>}<span class="s">)</span> <span class="s">{</span> 497 <span class="i">$This</span>->{<span class="w">MaxKey</span>} = <span class="i">$Key</span><span class="sc">;</span> 498 <span class="s">}</span> 499 <span class="s">}</span> 500 501 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 502 <span class="s">}</span> 503 504 <span class="c"># Delete a sepcified key along with all of its values added to the list...</span> 505 <span class="c">#</span> <a name="_DeleteKey-"></a> 506 <span class="k">sub </span><span class="m">_DeleteKey</span> <span class="s">{</span> 507 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 508 <span class="k">my</span><span class="s">(</span><span class="i">$NumOfValues</span><span class="s">)</span><span class="sc">;</span> 509 510 <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}<span class="s">)</span> <span class="s">{</span> 511 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> 512 <span class="s">}</span> 513 514 <span class="c"># Delete all key values...</span> 515 <span class="i">$NumOfValues</span> = <span class="k">scalar</span> <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}}<span class="sc">;</span> 516 <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> 517 <span class="i">$This</span>->{<span class="w">CurrentSize</span>} -= <span class="i">$NumOfValues</span><span class="sc">;</span> 518 519 <span class="c"># Delete key...</span> 520 <span class="k">delete</span> <span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}<span class="sc">;</span> 521 <span class="i">$This</span>->{<span class="w">KeysCount</span>} -= <span class="n">1</span><span class="sc">;</span> 522 523 <span class="c"># Set min and max keys...</span> 524 <span class="i">$This</span><span class="i">->_FindAndSetMinAndMaxKeys</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> 525 526 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 527 <span class="s">}</span> 528 529 <span class="c"># Delete a sepcified key along with its most recent value added to the list...</span> 530 <span class="c">#</span> <a name="_DeleteKeyValuePair-"></a> 531 <span class="k">sub </span><span class="m">_DeleteKeyValuePair</span> <span class="s">{</span> 532 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Key</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 533 534 <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}<span class="s">)</span> <span class="s">{</span> 535 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> 536 <span class="s">}</span> 537 538 <span class="c"># Delete value...</span> 539 <span class="k">pop</span> <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}}<span class="sc">;</span> 540 <span class="i">$This</span>->{<span class="w">CurrentSize</span>} -= <span class="n">1</span><span class="sc">;</span> 541 542 <span class="c"># Delete key...</span> 543 <span class="k">if</span> <span class="s">(</span>!<span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}}<span class="s">)</span> <span class="s">{</span> 544 <span class="k">delete</span> <span class="i">$This</span>->{<span class="w">Keys</span>}{<span class="i">$Key</span>}<span class="sc">;</span> 545 <span class="i">$This</span>->{<span class="w">KeysCount</span>} -= <span class="n">1</span><span class="sc">;</span> 546 <span class="s">}</span> 547 548 <span class="c"># Set min and max keys...</span> 549 <span class="i">$This</span><span class="i">->_FindAndSetMinAndMaxKeys</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> 550 551 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 552 <span class="s">}</span> 553 554 <span class="c"># Set min and max key...</span> 555 <span class="c">#</span> <a name="_FindAndSetMinAndMaxKeys-"></a> 556 <span class="k">sub </span><span class="m">_FindAndSetMinAndMaxKeys</span> <span class="s">{</span> 557 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 558 <span class="k">my</span><span class="s">(</span><span class="i">@SortedKeys</span><span class="s">)</span><span class="sc">;</span> 559 560 <span class="i">@SortedKeys</span> = <span class="s">(</span><span class="i">$This</span>->{<span class="w">KeyType</span>} =~ <span class="q">/^Numeric$/i</span><span class="s">)</span> ? <span class="s">(</span><span class="k">sort</span> <span class="s">{</span> <span class="i">$a</span> <=> <span class="i">$b</span> <span class="s">}</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}}<span class="s">)</span> <span class="co">:</span> <span class="s">(</span><span class="k">sort</span> <span class="s">{</span> <span class="i">$a</span> <span class="k">cmp</span> <span class="i">$b</span> <span class="s">}</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">Keys</span>}}<span class="s">)</span><span class="sc">;</span> 561 562 <span class="k">if</span> <span class="s">(</span><span class="i">@SortedKeys</span><span class="s">)</span> <span class="s">{</span> 563 <span class="i">$This</span>->{<span class="w">MinKey</span>} = <span class="i">$SortedKeys</span>[<span class="n">0</span>]<span class="sc">;</span> 564 <span class="i">$This</span>->{<span class="w">MaxKey</span>} = <span class="i">$SortedKeys</span>[<span class="i">$#SortedKeys</span>]<span class="sc">;</span> 565 <span class="s">}</span> 566 <span class="k">else</span> <span class="s">{</span> 567 <span class="i">$This</span>->{<span class="w">MinKey</span>} = <span class="k">undef</span><span class="sc">;</span> 568 <span class="i">$This</span>->{<span class="w">MaxKey</span>} = <span class="k">undef</span><span class="sc">;</span> 569 <span class="s">}</span> 570 571 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> 572 <span class="s">}</span> 573 574 <span class="c"># Return a string containing vector values...</span> <a name="StringifyPseudoHeap-"></a> 575 <span class="k">sub </span><span class="m">StringifyPseudoHeap</span> <span class="s">{</span> 576 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> 577 <span class="k">my</span><span class="s">(</span><span class="i">$PseudoHeapString</span><span class="cm">,</span> <span class="i">$Key</span><span class="cm">,</span> <span class="i">$Value</span><span class="cm">,</span> <span class="i">$KeyValuesString</span><span class="cm">,</span> <span class="i">@KeysAndValues</span><span class="s">)</span><span class="sc">;</span> 578 579 <span class="i">$PseudoHeapString</span> = <span class="q">"PseudoHeap: Type: "</span> . <span class="i">$This</span><span class="i">->GetType</span><span class="s">(</span><span class="s">)</span> . <span class="q">"; KeyType: "</span> . <span class="i">$This</span><span class="i">->GetKeyType</span><span class="s">(</span><span class="s">)</span> . <span class="q">"; MaxSize: $This->{MaxSize}; CurrentSize: $This->{CurrentSize}; MinKey: "</span> . <span class="i">$This</span><span class="i">->GetMinKey</span><span class="s">(</span><span class="s">)</span> . <span class="q">"; MaxKey: "</span> . <span class="i">$This</span><span class="i">->GetMaxKey</span><span class="s">(</span><span class="s">)</span> . <span class="q">"; NumOfUniqueKeys: $This->{KeysCount}"</span><span class="sc">;</span> 580 581 <span class="i">@KeysAndValues</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> 582 <span class="k">for</span> <span class="i">$Key</span> <span class="s">(</span><span class="i">$This</span><span class="i">->GetSortedKeys</span><span class="s">(</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> 583 <span class="k">for</span> <span class="i">$Value</span> <span class="s">(</span><span class="i">$This</span><span class="i">->GetKeyValues</span><span class="s">(</span><span class="i">$Key</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> 584 <span class="k">push</span> <span class="i">@KeysAndValues</span><span class="cm">,</span> <span class="q">"$Key - $Value"</span><span class="sc">;</span> 585 <span class="s">}</span> 586 <span class="s">}</span> 587 <span class="k">if</span> <span class="s">(</span><span class="i">@KeysAndValues</span><span class="s">)</span> <span class="s">{</span> 588 <span class="i">$KeyValuesString</span> = <span class="i">TextUtil::JoinWords</span><span class="s">(</span>\<span class="i">@KeysAndValues</span><span class="cm">,</span> <span class="q">"; "</span><span class="cm">,</span> <span class="n">0</span><span class="s">)</span><span class="sc">;</span> 589 <span class="s">}</span> 590 <span class="k">else</span> <span class="s">{</span> 591 <span class="i">$KeyValuesString</span> = <span class="q">"None"</span><span class="sc">;</span> 592 <span class="s">}</span> 593 594 <span class="i">$PseudoHeapString</span> .= <span class="q">"; Sorted Key - Value pairs: [$KeyValuesString]"</span><span class="sc">;</span> 595 596 <span class="k">return</span> <span class="i">$PseudoHeapString</span><span class="sc">;</span> 597 <span class="s">}</span> 598 <a name="EOF-"></a></pre> <p> </p> <br /> <center> <img src="../../../images/h2o2.png"> </center> </body> </html>