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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>DMTL: graph_tokenizer.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.7 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><h1>graph_tokenizer.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2005 M.J. Zaki <zaki@cs.rpi.edu> Rensselaer Polytechnic Institute</span><a name="l00003"></a>00003 <span class="comment"> * Written by parimi@cs.rpi.edu</span><a name="l00004"></a>00004 <span class="comment"> * Updated by chaojv@cs.rpi.edu, alhasan@cs.rpi.edu, salems@cs.rpi.edu</span><a name="l00005"></a>00005 <span class="comment"> * Modifications:</span><a name="l00006"></a>00006 <span class="comment"> * Added tokenizer properties -- Zaki, 5/8/06</span><a name="l00007"></a>00007 <span class="comment"> *</span><a name="l00008"></a>00008 <span class="comment"> * This program is free software; you can redistribute it and/or</span><a name="l00009"></a>00009 <span class="comment"> * modify it under the terms of the GNU General Public License</span><a name="l00010"></a>00010 <span class="comment"> * as published by the Free Software Foundation; either version 2</span><a name="l00011"></a>00011 <span class="comment"> * of the License, or (at your option) any later version.</span><a name="l00012"></a>00012 <span class="comment"> *</span><a name="l00013"></a>00013 <span class="comment"> * This program is distributed in the hope that it will be useful,</span><a name="l00014"></a>00014 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span><a name="l00015"></a>00015 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span><a name="l00016"></a>00016 <span class="comment"> * GNU General Public License for more details.</span><a name="l00017"></a>00017 <span class="comment"> *</span><a name="l00018"></a>00018 <span class="comment"> * You should have received a copy of the GNU General Public License along</span><a name="l00019"></a>00019 <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span><a name="l00020"></a>00020 <span class="comment"> * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.</span><a name="l00021"></a>00021 <span class="comment"> */</span><a name="l00022"></a>00022 <span class="preprocessor">#ifndef _GRAPH_TOKENIZER_H</span><a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define _GRAPH_TOKENIZER_H</span><a name="l00024"></a>00024 <span class="preprocessor"></span><a name="l00025"></a>00025 <span class="preprocessor">#include <fstream></span><a name="l00026"></a>00026 <span class="preprocessor">#include "graph_vat.h"</span><a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="element__parser_8h.html">element_parser.h</a>"</span><a name="l00028"></a>00028 <span class="preprocessor">#include "generic_classes.h"</span><a name="l00029"></a>00029 <span class="preprocessor">#include "tokenizer_utils.h"</span><a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="keyword">using namespace </span>std;<a name="l00032"></a>00032 <a name="l00033"></a>00033 <a name="l00041"></a>00041 <span class="keyword">template</span><<span class="keyword">typename</span> PP, <span class="keyword">typename</span> MP, <span class="keyword">typename</span> TP, <span class="keyword">typename</span> PAT_ST, <span class="keyword">template</span><<span class="keyword">class</span>, <span class="keyword">typename</span>, <span class="keyword">typename</span>, <span class="keyword">template</span> <<span class="keyword">typename</span>> <span class="keyword">class</span>> <span class="keyword">class </span>CC, <a name="l00042"></a>00042 template <typename> class ALLOC ><a name="l00043"></a><a class="code" href="classtokenizer_3_01GRAPH__PATTERN_00_01DMTL__TKNZ__PROP_00_01ALLOC_01_4.html">00043</a> class <a class="code" href="classtokenizer.html">tokenizer</a><GRAPH_PATTERN, DMTL_TKNZ_PROP, ALLOC ><a name="l00044"></a>00044 {<a name="l00045"></a>00045 <span class="keyword">public</span>:<a name="l00046"></a>00046 <span class="keyword">typedef</span> <a class="code" href="classvat.html">vat<GRAPH_PROP, V_Fk1_MINE_PROP, ALLOC, std::vector ></a> <a class="code" href="classvat.html">VAT</a>;<a name="l00047"></a>00047 <a name="l00048"></a><a class="code" href="classtokenizer_3_01GRAPH__PATTERN_00_01DMTL__TKNZ__PROP_00_01ALLOC_01_4.html#6b534e815d9b7bc6db390545b83f9ed5">00048</a> <a class="code" href="classtokenizer.html">tokenizer</a>(<span class="keyword">const</span> <span class="keywordtype">int</span> max=LINE_SZ): MAXLINE(max) {} <a name="l00055"></a>00055 <span class="keyword">template</span><<span class="keyword">class</span> SM_T><a name="l00056"></a><a class="code" href="classtokenizer_3_01GRAPH__PATTERN_00_01DMTL__TKNZ__PROP_00_01ALLOC_01_4.html#d0518f28456a0e7448ea7a54a108a2d4">00056</a> <span class="keywordtype">int</span> parse_next_trans(ifstream& infile, <a class="code" href="classpat__fam.html">pat_fam<GRAPH_PATTERN></a>& freq_pats, <a class="code" href="classstorage__manager.html">storage_manager</a><GRAPH_PATTERN, <a name="l00057"></a>00057 <a class="code" href="classvat.html">VAT</a>, ALLOC, SM_T>& vat_hmap) {<a name="l00058"></a>00058 <span class="keywordtype">char</span>* line=<span class="keyword">new</span> <span class="keywordtype">char</span>[MAXLINE];<a name="l00059"></a>00059 <span class="keywordtype">char</span> word[MAXLINE];<a name="l00060"></a>00060 <span class="keywordtype">char</span>* startline=line;<a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="keywordtype">int</span> len;<a name="l00063"></a>00063 <span class="keywordtype">int</span> count; <span class="comment">//# of words parsed from line</span><a name="l00064"></a>00064 <span class="keywordtype">int</span> tid=-1;<a name="l00065"></a>00065 <span class="keywordtype">int</span> num_items=-1; <span class="comment">//# of words to be read from this line</span><a name="l00066"></a>00066 <span class="keywordtype">int</span> pos; <span class="comment">//stores starting position of input stream's get pointer</span><a name="l00067"></a>00067 <a class="code" href="classvat.html">VAT</a>* gvat;<a name="l00068"></a>00068 GRAPH_PATTERN* g1;<a name="l00069"></a>00069 <a name="l00070"></a>00070 map<int, typename GRAPH_PATTERN::VERTEX_T> vid_to_lbl; <span class="comment">// map from vertex-id </span><a name="l00071"></a>00071 <span class="comment">// to its label</span><a name="l00072"></a>00072 <span class="keyword">typename</span> map<int, typename GRAPH_PATTERN::VERTEX_T>::iterator tmp_it;<a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="keywordflow">while</span>(1) {<a name="l00075"></a>00075 pos=infile.tellg();<a name="l00076"></a>00076 line=startline;<a name="l00077"></a>00077 *line=<span class="charliteral">'\0'</span>;<a name="l00078"></a>00078 infile.getline(line, MAXLINE-1);<a name="l00079"></a>00079 len=strlen(line);<a name="l00080"></a>00080 <span class="keywordflow">if</span>(!len || !line) {<a name="l00081"></a>00081 <span class="keyword">delete</span>[] startline;<a name="l00082"></a>00082 <span class="keywordflow">return</span> tid;<a name="l00083"></a>00083 }<a name="l00084"></a>00084 <a name="l00085"></a>00085 line[len++]=<span class="charliteral">'\0'</span>;<a name="l00086"></a>00086 count=0;<a name="l00087"></a>00087 <a name="l00088"></a>00088 <span class="keywordflow">if</span>(line[0]==<span class="charliteral">'#'</span>) <span class="comment">// comment line</span><a name="l00089"></a>00089 <span class="keywordflow">continue</span>;<a name="l00090"></a>00090 <a name="l00091"></a>00091 <span class="keywordflow">if</span>(!(line=parse_word()(line, word))) {<a name="l00092"></a>00092 <span class="comment">//parse_word() failed</span><a name="l00093"></a>00093 <span class="keyword">delete</span>[] startline;<a name="l00094"></a>00094 <span class="keywordflow">return</span> -1;<a name="l00095"></a>00095 }<a name="l00096"></a>00096 <a name="l00097"></a>00097 <span class="keywordflow">if</span>(word[0]==<span class="charliteral">'t'</span>) { <span class="comment">// this is the tid line</span><a name="l00098"></a>00098 <span class="keywordflow">if</span>(tid!=-1) { <span class="comment">// this is a new tid, stop here</span><a name="l00099"></a>00099 infile.seekg(pos);<a name="l00100"></a>00100 <span class="keyword">delete</span>[] startline;<a name="l00101"></a>00101 <span class="keywordflow">return</span> tid; <span class="comment">// this is the line from where function should </span><a name="l00102"></a>00102 <span class="comment">// return on most calls </span><a name="l00103"></a>00103 }<a name="l00104"></a>00104 <a name="l00105"></a>00105 line=parse_word()(line, word); <span class="comment">// read in the '#'</span><a name="l00106"></a>00106 <span class="keywordflow">if</span>(!line) {<a name="l00107"></a>00107 <span class="comment">//parse_word() failed</span><a name="l00108"></a>00108 <span class="keyword">delete</span>[] startline;<a name="l00109"></a>00109 <span class="keywordflow">return</span> -1;<a name="l00110"></a>00110 }<a name="l00111"></a>00111 <a name="l00112"></a>00112 line=parse_word()(line, word); <span class="comment">// read in the tid</span><a name="l00113"></a>00113 <span class="keywordflow">if</span>(!line) {<a name="l00114"></a>00114 <span class="comment">//parse_word() failed</span><a name="l00115"></a>00115 <span class="keyword">delete</span>[] startline;<a name="l00116"></a>00116 <span class="keywordflow">return</span> -1;<a name="l00117"></a>00117 }<a name="l00118"></a>00118 tid=atoi(word);<a name="l00119"></a>00119 <a name="l00120"></a>00120 }<span class="comment">//if word[0]=='t'</span><a name="l00121"></a>00121 <span class="keywordflow">else</span> <span class="keywordflow">if</span>(word[0]==<span class="charliteral">'v'</span>) { <span class="comment">// this is a vid-line</span><a name="l00122"></a>00122 num_items=2; <span class="comment">// 2 more words to be parsed from this line</span><a name="l00123"></a>00123 <span class="keywordtype">int</span> vid=0;<a name="l00124"></a>00124 <span class="keyword">typename</span> GRAPH_PATTERN::VERTEX_T v_lbl;<a name="l00125"></a>00125 <a name="l00126"></a>00126 <span class="keywordflow">while</span>(count<num_items) {⌨️ 快捷键说明
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