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comparison mayachemtools/docs/modules/html/code/SimpleCalcYYLexer.html @ 0:73ae111cf86f draft
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| author | deepakjadmin |
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| date | Wed, 20 Jan 2016 11:55:01 -0500 |
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| 1 <html> | |
| 2 <head> | |
| 3 <title>MayaChemTools:Code:Parsers::SimpleCalcYYLexer.pm</title> | |
| 4 <meta http-equiv="content-type" content="text/html;charset=utf-8"> | |
| 5 <link rel="stylesheet" type="text/css" href="../../../css/MayaChemToolsCode.css"> | |
| 6 </head> | |
| 7 <body leftmargin="20" rightmargin="20" topmargin="10" bottommargin="10"> | |
| 8 <br/> | |
| 9 <center> | |
| 10 <a href="http://www.mayachemtools.org" title="MayaChemTools Home"><img src="../../../images/MayaChemToolsLogo.gif" border="0" alt="MayaChemTools"></a> | |
| 11 </center> | |
| 12 <br/> | |
| 13 <pre> | |
| 14 <a name="package-Parsers::SimpleCalcYYLexer-"></a> 1 <span class="k">package </span><span class="i">Parsers::SimpleCalcYYLexer</span><span class="sc">;</span> | |
| 15 2 <span class="c">#</span> | |
| 16 3 <span class="c"># $RCSfile: SimpleCalcYYLexer.pm,v $</span> | |
| 17 4 <span class="c"># $Date: 2015/02/28 20:50:55 $</span> | |
| 18 5 <span class="c"># $Revision: 1.9 $</span> | |
| 19 6 <span class="c">#</span> | |
| 20 7 <span class="c"># Author: Manish Sud <msud@san.rr.com></span> | |
| 21 8 <span class="c">#</span> | |
| 22 9 <span class="c"># Copyright (C) 2015 Manish Sud. All rights reserved.</span> | |
| 23 10 <span class="c">#</span> | |
| 24 11 <span class="c"># This file is part of MayaChemTools.</span> | |
| 25 12 <span class="c">#</span> | |
| 26 13 <span class="c"># MayaChemTools is free software; you can redistribute it and/or modify it under</span> | |
| 27 14 <span class="c"># the terms of the GNU Lesser General Public License as published by the Free</span> | |
| 28 15 <span class="c"># Software Foundation; either version 3 of the License, or (at your option) any</span> | |
| 29 16 <span class="c"># later version.</span> | |
| 30 17 <span class="c">#</span> | |
| 31 18 <span class="c"># MayaChemTools is distributed in the hope that it will be useful, but without</span> | |
| 32 19 <span class="c"># any warranty; without even the implied warranty of merchantability of fitness</span> | |
| 33 20 <span class="c"># for a particular purpose. See the GNU Lesser General Public License for more</span> | |
| 34 21 <span class="c"># details.</span> | |
| 35 22 <span class="c">#</span> | |
| 36 23 <span class="c"># You should have received a copy of the GNU Lesser General Public License</span> | |
| 37 24 <span class="c"># along with MayaChemTools; if not, see <http://www.gnu.org/licenses/> or</span> | |
| 38 25 <span class="c"># write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,</span> | |
| 39 26 <span class="c"># Boston, MA, 02111-1307, USA.</span> | |
| 40 27 <span class="c">#</span> | |
| 41 28 | |
| 42 29 <span class="k">use</span> <span class="w">strict</span><span class="sc">;</span> | |
| 43 30 <span class="k">use</span> <span class="w">Carp</span><span class="sc">;</span> | |
| 44 31 <span class="k">use</span> <span class="w">Exporter</span><span class="sc">;</span> | |
| 45 32 <span class="k">use</span> <span class="w">Scalar::Util</span> <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 46 33 <span class="k">use</span> <span class="w">Parsers::YYLexer</span><span class="sc">;</span> | |
| 47 34 | |
| 48 35 <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> | |
| 49 36 | |
| 50 37 <span class="i">@ISA</span> = <span class="q">qw(Parsers::YYLexer Exporter)</span><span class="sc">;</span> | |
| 51 38 <span class="i">@EXPORT</span> = <span class="q">qw()</span><span class="sc">;</span> | |
| 52 39 <span class="i">@EXPORT_OK</span> = <span class="q">qw()</span><span class="sc">;</span> | |
| 53 40 | |
| 54 41 <span class="i">%EXPORT_TAGS</span> = <span class="s">(</span><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><span class="s">)</span><span class="sc">;</span> | |
| 55 42 | |
| 56 43 <span class="c"># Setup class variables...</span> | |
| 57 44 <span class="k">my</span><span class="s">(</span><span class="i">$ClassName</span><span class="cm">,</span> <span class="i">$YYTabFile</span><span class="cm">,</span> <span class="i">@YYLexerTokensSpec</span><span class="s">)</span><span class="sc">;</span> | |
| 58 45 <span class="i">_InitializeClass</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 59 46 | |
| 60 47 <span class="c"># Overload Perl functions...</span> | |
| 61 48 <span class="k">use</span> <span class="w">overload</span> <span class="q">'""'</span> <span class="cm">=></span> <span class="q">'StringifySimpleCalcYYLexer'</span><span class="sc">;</span> | |
| 62 49 | |
| 63 50 <span class="c"># Class constructor...</span> | |
| 64 <a name="new-"></a> 51 <span class="k">sub </span><span class="m">new</span> <span class="s">{</span> | |
| 65 52 <span class="k">my</span><span class="s">(</span><span class="i">$Class</span><span class="cm">,</span> <span class="i">$Input</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 66 53 <span class="k">my</span><span class="s">(</span><span class="i">@TokensSpec</span><span class="s">)</span><span class="sc">;</span> | |
| 67 54 | |
| 68 55 <span class="c"># Initialize object...</span> | |
| 69 56 <span class="k">my</span> <span class="i">$This</span> = <span class="i">$Class</span><span class="i">->SUPER::new</span><span class="s">(</span><span class="i">$Input</span><span class="cm">,</span> <span class="i">@YYLexerTokensSpec</span><span class="s">)</span><span class="sc">;</span> | |
| 70 57 <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">$Class</span><span class="sc">;</span> | |
| 71 58 <span class="i">$This</span><span class="i">->_InitializeYYLexer</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 72 59 | |
| 73 60 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | |
| 74 61 <span class="s">}</span> | |
| 75 62 | |
| 76 63 <span class="c"># Initialize object data...</span> | |
| 77 64 <span class="c">#</span> | |
| 78 <a name="_InitializeYYLexer-"></a> 65 <span class="k">sub </span><span class="m">_InitializeYYLexer</span> <span class="s">{</span> | |
| 79 66 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 80 67 | |
| 81 68 <span class="c"># Setup default YYTabFile containing mapping of token names to numbers...</span> | |
| 82 69 <span class="i">$This</span><span class="i">->SetupYYTabFile</span><span class="s">(</span><span class="i">$YYTabFile</span><span class="s">)</span><span class="sc">;</span> | |
| 83 70 | |
| 84 71 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | |
| 85 72 <span class="s">}</span> | |
| 86 73 | |
| 87 74 <span class="c"># Initialize class ...</span> | |
| 88 <a name="_InitializeClass-"></a> 75 <span class="k">sub </span><span class="m">_InitializeClass</span> <span class="s">{</span> | |
| 89 76 <span class="c">#Class name...</span> | |
| 90 77 <span class="i">$ClassName</span> = <span class="w">__PACKAGE__</span><span class="sc">;</span> | |
| 91 78 | |
| 92 79 <span class="c"># Setup default token table file...</span> | |
| 93 80 <span class="i">$YYTabFile</span> = <span class="q">"Parsers/SimpleCalcParser.tab.ph"</span><span class="sc">;</span> | |
| 94 81 | |
| 95 82 <span class="c"># Setup default lexer tokens specs...</span> | |
| 96 83 <span class="i">@YYLexerTokensSpec</span> = <span class="s">(</span> | |
| 97 84 <span class="s">[</span> <span class="q">'LETTER'</span><span class="cm">,</span> <span class="q">qr/[a-zA-Z]/</span> <span class="s">]</span><span class="cm">,</span> | |
| 98 85 <span class="s">[</span> <span class="q">'NUMBER'</span><span class="cm">,</span> <span class="q">qr/\d+/</span> <span class="s">]</span><span class="cm">,</span> | |
| 99 86 <span class="s">[</span> <span class="q">'SPACE'</span><span class="cm">,</span> <span class="q">qr/[ ]*/</span><span class="cm">,</span> <span class="k">sub</span> <span class="s">{</span> <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$TokenLabel</span><span class="cm">,</span> <span class="i">$MatchedText</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> <span class="k">return</span> <span class="q">''</span><span class="sc">;</span> <span class="s">}</span> <span class="s">]</span><span class="cm">,</span> | |
| 100 87 <span class="s">[</span> <span class="q">'NEWLINE'</span><span class="cm">,</span> <span class="q">qr/(?:\r\n|\r|\n)/</span><span class="cm">,</span> <span class="k">sub</span> <span class="s">{</span> <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$TokenLabel</span><span class="cm">,</span> <span class="i">$MatchedText</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> <span class="k">return</span> <span class="q">"\n"</span><span class="sc">;</span> <span class="s">}</span> <span class="s">]</span><span class="cm">,</span> | |
| 101 88 <span class="s">[</span> <span class="q">'CHAR'</span><span class="cm">,</span> <span class="q">qr/./</span> <span class="s">]</span> | |
| 102 89 <span class="s">)</span><span class="sc">;</span> | |
| 103 90 <span class="s">}</span> | |
| 104 91 | |
| 105 92 <span class="c"># Is it a lexer object?</span> | |
| 106 <a name="_IsSimpleCalcYYLexer-"></a> 93 <span class="k">sub </span><span class="m">_IsSimpleCalcYYLexer</span> <span class="s">{</span> | |
| 107 94 <span class="k">my</span><span class="s">(</span><span class="i">$Object</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 108 95 | |
| 109 96 <span class="k">return</span> <span class="s">(</span><span class="i">Scalar::Util::blessed</span><span class="s">(</span><span class="i">$Object</span><span class="s">)</span> && <span class="i">$Object</span><span class="i">->isa</span><span class="s">(</span><span class="i">$ClassName</span><span class="s">)</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span> | |
| 110 97 <span class="s">}</span> | |
| 111 98 | |
| 112 99 <span class="c"># Return a string containing information about lexer...</span> | |
| 113 <a name="StringifySimpleCalcYYLexer-"></a> 100 <span class="k">sub </span><span class="m">StringifySimpleCalcYYLexer</span> <span class="s">{</span> | |
| 114 101 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 115 102 <span class="k">my</span><span class="s">(</span><span class="i">$SimleCalcYYLexerString</span><span class="s">)</span><span class="sc">;</span> | |
| 116 103 | |
| 117 104 <span class="i">$SimleCalcYYLexerString</span> = <span class="q">"SimpleCalcYYLexer: PackageName: $ClassName; "</span> . <span class="i">$This</span><span class="i">->_GetYYLexerInfoString</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 118 105 | |
| 119 106 <span class="k">return</span> <span class="i">$SimleCalcYYLexerString</span><span class="sc">;</span> | |
| 120 107 <span class="s">}</span> | |
| 121 108 | |
| 122 <a name="EOF-"></a></pre> | |
| 123 <p> </p> | |
| 124 <br /> | |
| 125 <center> | |
| 126 <img src="../../../images/h2o2.png"> | |
| 127 </center> | |
| 128 </body> | |
| 129 </html> |