trunk/Search/Outputer.cpp

/* ============================================================================
 * Douglas Thrift's Search Engine License
 *
 * Copyright (C) 2002-2003, Douglas Thrift. All Rights Reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. The end-user documentation included with the redistribution, if any, must
 *    include the following acknowledgment:
 *
 *       "This product includes software developed by Douglas Thrift
 *       (http://computers.douglasthrift.net/searchengine/)."
 *
 *    Alternately, this acknowledgment may appear in the software itself, if
 *    and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Douglas Thrift" and "Douglas Thrift's Search Engine" must not
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.  For written permission, please visit
 *    http://www.douglasthrift.net/contact.cgi for contact information.
 *
 * 5. Products derived from this software may not be called "Douglas Thrift's
 *    Search Engine", nor may "Douglas Thrift's Search Engine" appear in their
 *    name, without prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ============================================================================
 */
// Douglas Thrift's Search Engine Outputer
//
// Douglas Thrift
//
// Outputer.cpp

#include "Outputer.h"

Outputer::Outputer(const string& headerFile, const string& bodyFile, const
        string& footerFile, const string& notfoundFile, const string& pagesFile)
{
        this->headerFile = headerFile;
        this->bodyFile = bodyFile;
        this->footerFile = footerFile;
        this->notfoundFile = notfoundFile;
        this->pagesFile = pagesFile;
}

void Outputer::output(Searcher& searcher, unsigned page)
{
        MultiSet pagesSet = searcher.getPages();
        numWebpages = pagesSet.size();
        numPages = (numWebpages + 9) / 10;
        string query = searcher.getQueryString();
        vector<string> common = searcher.getCommonUsed();

        MultiSetIterator itor = pagesSet.begin();

        for (int count = 0; count < page * 10 && itor != pagesSet.end(); count++)
        {
                itor++;
        }

        for (int index = 0; index < 10 && itor != pagesSet.end(); index++, itor++)
        {
                webpages.push_back(*itor);
        }

        this->query = searcher.getQuery().size() > 0;
        results = webpages.size() > 0;
        time = searcher.time();

        if (debug)
        {
                cerr << "query = " << this->query << "\n"
                        << "results = " << results << "\n"
                        << "time = " << duration() << "\n";
        }

        entities(query, '&', "&amp;");
        entities(query, '\"', "&quot;");
        entities(query, '<', "&lt;");
        entities(query, '>', "&gt;");

        string ignore = searcher.getIgnore();

        header(query, page, common, searcher.getAnd(), searcher.getOr(),
                ignore);

        if (results)
        {
                body();
        }
        else if (this->query)
        {
                notfound(query, searcher.getQuery().size());
        }

        footer(query, page, common, searcher.getAnd(), searcher.getOr(),
                ignore);
}

void Outputer::header(const string& query, unsigned page, vector<string>
        common, bool and_, bool or_, const string& ignore)
{
        ifstream fin(headerFile.c_str());

        string line;
        while (fin.good())
        {
                getline(fin, line);

                conditional(line, fin, "<?ifquery?>", this->query);
                conditional(line, fin, "<?ifresults?>", results);
                conditional(line, fin, "<?ifor?>", or_);
                conditional(line, fin, "<?ifand?>", and_);
                conditional(line, fin, "<?ifignore?>", ignore != "");
                conditional(line, fin, "<?ifcommon?>", common.size() == 1);
                conditional(line, fin, "<?ifmanycommon?>", common.size() > 1);

                tag(line, "<?version?>", programName + ' ' + programVersion + ' ' +
                        platform());
                tag(line, "<?query?>", query);
                tag(line, "<?range?>", range(page));
                tag(line, "<?total?>", total());
                tag(line, "<?time?>", duration());
                tag(line, "<?pages?>", pages(query, page));
                tag(line, "<?ignore?>", ignore);
                tag(line, "<?common?>", common[0]);
                tag(line, "<?manycommon?>", manycommon(common));

                cout << line << (fin.good() ? "\n" : "");
        }

        fin.close();
}

void Outputer::body()
{
        for (int index = 0; index < webpages.size(); index++)
        {
                Ranker webpage = webpages[index];
                string title = webpage.getTitle();
                if (title == "")
                {
                        title = webpage.getURL();
                        entities(title, '&', "&amp;");
                        entities(title, '\"', "&quot;");
                        entities(title, '<', "&lt;");
                        entities(title, '>', "&gt;");
                }
                string address = webpage.getURL();
                string sample = webpage.getSample();
                string description = webpage.getDescription();

                char* csize = new char[1024];
                sprintf(csize, "%.0fk", (double(webpage.getSize()) / double(1024)));

                string size = csize;

                delete [] csize;

                entities(address, '&', "&amp;");
                entities(address, '\"', "&quot;");
                entities(address, '<', "&lt;");
                entities(address, '>', "&gt;");

                ifstream fin(bodyFile.c_str());

                string line;
                while (fin.good())
                {
                        getline(fin, line);

                        conditional(line, fin, "<?ifdescription?>", description != "");

                        tag(line, "<?address?>", address);
                        tag(line, "<?title?>", title);
                        tag(line, "<?sample?>", sample);
                        tag(line, "<?description?>", description);
                        tag(line, "<?size?>", size);

                        cout << line << (fin.good() ? "\n" : "");
                }

                fin.close();
        }
}

void Outputer::footer(const string& query, unsigned page, vector<string>
        common, bool and_, bool or_, const string& ignore)
{
        ifstream fin(footerFile.c_str());

        string line;
        while (fin.good())
        {
                getline(fin, line);

                conditional(line, fin, "<?ifquery?>", this->query);
                conditional(line, fin, "<?ifresults?>", results);
                conditional(line, fin, "<?ifor?>", or_);
                conditional(line, fin, "<?ifand?>", and_);
                conditional(line, fin, "<?ifignore?>", ignore != "");
                conditional(line, fin, "<?ifcommon?>", common.size() == 1);
                conditional(line, fin, "<?ifmanycommon?>", common.size() > 1);

                tag(line, "<?version?>", programName + ' ' + programVersion + ' ' +
                        platform());
                tag(line, "<?query?>", query);
                tag(line, "<?range?>", range(page));
                tag(line, "<?total?>", total());
                tag(line, "<?time?>", duration());
                tag(line, "<?pages?>", pages(query, page));
                tag(line, "<?ignore?>", ignore);
                tag(line, "<?common?>", common[0]);
                tag(line, "<?manycommon?>", manycommon(common));

                cout << line << (fin.good() ? "\n" : "");
        }

        fin.close();
}

void Outputer::notfound(const string& query, unsigned keywords)
{
        ifstream fin(notfoundFile.c_str());

        string line;
        while (fin.good())
        {
                getline(fin, line);

                conditional(line, fin, "<?ifmany?>", keywords > 1);

                tag(line, "<?query?>", query);

                cout << line << (fin.good() ? "\n" : "");
        }

        fin.close();
}

string Outputer::pages(string query, unsigned page)
{
        entities(query, "&lt;", '<');
        entities(query, "&gt;", '>');
        entities(query, "&quot;", '\"');
        entities(query, "&amp;", '&');

        entities(query, '%', "%25");
        entities(query, '\t', "%09");
        entities(query, ' ', "%20");
        entities(query, '\"', "%22");
        entities(query, '#', "%23");
        entities(query, '$', "%24");
        entities(query, '&', "%26");
        entities(query, '\'', "%27");
        entities(query, '+', "%2B");
        entities(query, ',', "%2C");
        entities(query, '/', "%2F");
        entities(query, ':', "%3A");
        entities(query, ';', "%3B");
        entities(query, '<', "%3C");
        entities(query, '=', "%3D");
        entities(query, '>', "%3E");
        entities(query, '?', "%3F");
        entities(query, '@', "%40");
        entities(query, '[', "%5B");
        entities(query, ']', "%5D");
        entities(query, '\\', "%5C");
        entities(query, '^', "%5E");
        entities(query, '`', "%60");
        entities(query, '{', "%7B");
        entities(query, '|', "%7C");
        entities(query, '}', "%7D");
        entities(query, '~', "%7E");

        string lines;

        ifstream fin(pagesFile.c_str());

        string line;
        while (fin.good())
        {
                getline(fin, line);
                conditional(line, fin, "<?ifprevious?>", page >= 1);
                conditional(line, fin, "<?ifpage?>", false);
                conditional(line, fin, "<?ifnum?>", false);
                conditional(line, fin, "<?ifnext?>", false);

                char* cprevious = new char[1024];

                sprintf(cprevious, "%u", page);

                string previous = cprevious;

                delete [] cprevious;

                tag(line, "<?query?>", query);
                tag(line, "<?previous?>", previous);

                lines += line + (fin.good() ? "\n" : "");
        }

        fin.close();
        fin.clear();

        for (int index = 0; index < numPages; index++)
        {
                fin.open(pagesFile.c_str());

                while (fin.good())
                {
                        getline(fin, line);
                        if (index == page)
                        {
                                conditional(line, fin, "<?ifprevious?>", false);
                                conditional(line, fin, "<?ifpage?>", true);
                                conditional(line, fin, "<?ifnum?>", false);
                                conditional(line, fin, "<?ifnext?>", false);

                                char* cpage = new char[1024];

                                sprintf(cpage, "%u", (index + 1));

                                string spage = cpage;

                                delete [] cpage;

                                tag(line, "<?page?>", spage);
                        }
                        else
                        {
                                conditional(line, fin, "<?ifprevious?>", false);
                                conditional(line, fin, "<?ifpage?>", false);
                                conditional(line, fin, "<?ifnum?>", true);
                                conditional(line, fin, "<?ifnext?>", false);

                                char* cnum = new char[1024];

                                sprintf(cnum, "%u", (index + 1));

                                string num = cnum;

                                delete [] cnum;

                                tag(line, "<?query?>", query);
                                tag(line, "<?num?>", num);
                        }

                        lines += line + (fin.good() ? "\n" : "");
                }

                fin.close();
                fin.clear();
        }

        fin.open(pagesFile.c_str());

        while (fin.good())
        {
                getline(fin, line);
                conditional(line, fin, "<?ifprevious?>", false);
                conditional(line, fin, "<?ifpage?>", false);
                conditional(line, fin, "<?ifnum?>", false);
                conditional(line, fin, "<?ifnext?>", page + 2 <= numPages);

                char* cnext = new char[1024];

                sprintf(cnext, "%u", (page + 2));

                string next = cnext;

                delete [] cnext;

                tag(line, "<?query?>", query);
                tag(line, "<?next?>", next);

                lines += line + (fin.good() ? "\n" : "");
        }

        fin.close();

        return lines;
}

string Outputer::range(unsigned page)
{
        unsigned bottom = page * 10 + 1;
        unsigned top = numWebpages > page * 10 + 10 ? page * 10 + 10 : numWebpages;

        char* cbottom = new char[1024];
        char* ctop = new char[1024];

        sprintf(cbottom, "%u", bottom);
        sprintf(ctop, "%u", top);

        string range = string(cbottom) + " - " + ctop;

        delete [] cbottom;
        delete [] ctop;

        return range;
}

string Outputer::total()
{
        char* ctotal = new char[1024];

        sprintf(ctotal, "%u", numWebpages);

        string total = ctotal;

        delete [] ctotal;

        return total;
}

string Outputer::duration()
{
        char* ctime = new char[1024];
        sprintf(ctime, "%.2f", time);

        string duration = ctime;

        delete [] ctime;

        return duration;
}

string Outputer::manycommon(vector<string> common)
{
        string line;

        for (int index = 0; index < common.size(); index++)
        {
                line += common[index];

                if (index != common.size() - 1) line += ' ';
        }

        return line;
}

void Outputer::tag(string& line, char* tag, const string& replacement)
{
        int begin = 0;
        while (begin < line.length())
        {
                int spot = line.find(tag, begin);

                if (spot != string::npos)
                {
                        line.replace(spot, strlen(tag), replacement);
                }
                else
                {
                        break;
                }

                begin = spot + replacement.length();
        }
}

void Outputer::conditional(string& line, ifstream& fin, char* tag, bool
        condition)
{
        unsigned begin = 0;
        while (begin < line.length())
        {
                unsigned start = line.find(tag, begin);
                unsigned finish = line.find("<?endif?>", start);

                if (start == string::npos) break;

                string next;
                while (finish == string::npos)
                {
                        getline(fin, next);
                        line += '\n' + next;
                        finish = line.find("<?endif?>", start);
                }

                if (condition)
                {
                        line.erase(start, strlen(tag));
                        line.erase(finish - strlen(tag), 9);

                        begin = finish - strlen(tag) - 9;
                }
                else
                {
                        line.erase(start, finish - start + 9);

                        begin = start;
                }
        }
}
Revision:	183
Committed:	2003-07-05T23:31:12-07:00 (21 years, 11 months ago) by douglas
File size:	12717 byte(s)
Log Message:	Fixed some stuff.
#	Content
1	/* ============================================================================
2	* Douglas Thrift's Search Engine License
3	*
4	* Copyright (C) 2002-2003, Douglas Thrift. All Rights Reserved.
5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions are met:
7	*
8	* 1. Redistributions of source code must retain the above copyright notice,
9	* this list of conditions and the following disclaimer.
10	*
11	* 2. Redistributions in binary form must reproduce the above copyright notice,
12	* this list of conditions and the following disclaimer in the documentation
13	* and/or other materials provided with the distribution.
14	*
15	* 3. The end-user documentation included with the redistribution, if any, must
16	* include the following acknowledgment:
17	*
18	* "This product includes software developed by Douglas Thrift
19	* (http://computers.douglasthrift.net/searchengine/)."
20	*
21	* Alternately, this acknowledgment may appear in the software itself, if
22	* and wherever such third-party acknowledgments normally appear.
23	*
24	* 4. The names "Douglas Thrift" and "Douglas Thrift's Search Engine" must not
25	* be used to endorse or promote products derived from this software without
26	* specific prior written permission. For written permission, please visit
27	* http://www.douglasthrift.net/contact.cgi for contact information.
28	*
29	* 5. Products derived from this software may not be called "Douglas Thrift's
30	* Search Engine", nor may "Douglas Thrift's Search Engine" appear in their
31	* name, without prior written permission.
32	*
33	* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
34	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
35	* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
36	* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
37	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
38	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
39	* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
40	* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
41	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
42	* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43	* ============================================================================
44	*/
45	// Douglas Thrift's Search Engine Outputer
46	//
47	// Douglas Thrift
48	//
49	// Outputer.cpp
50
51	#include "Outputer.h"
52
53	Outputer::Outputer(const string& headerFile, const string& bodyFile, const
54	string& footerFile, const string& notfoundFile, const string& pagesFile)
55	{
56	this->headerFile = headerFile;
57	this->bodyFile = bodyFile;
58	this->footerFile = footerFile;
59	this->notfoundFile = notfoundFile;
60	this->pagesFile = pagesFile;
61	}
62
63	void Outputer::output(Searcher& searcher, unsigned page)
64	{
65	MultiSet pagesSet = searcher.getPages();
66	numWebpages = pagesSet.size();
67	numPages = (numWebpages + 9) / 10;
68	string query = searcher.getQueryString();
69	vector<string> common = searcher.getCommonUsed();
70
71	MultiSetIterator itor = pagesSet.begin();
72
73	for (int count = 0; count < page * 10 && itor != pagesSet.end(); count++)
74	{
75	itor++;
76	}
77
78	for (int index = 0; index < 10 && itor != pagesSet.end(); index++, itor++)
79	{
80	webpages.push_back(*itor);
81	}
82
83	this->query = searcher.getQuery().size() > 0;
84	results = webpages.size() > 0;
85	time = searcher.time();
86
87	if (debug)
88	{
89	cerr << "query = " << this->query << "\n"
90	<< "results = " << results << "\n"
91	<< "time = " << duration() << "\n";
92	}
93
94	entities(query, '&', "&");
95	entities(query, '\"', """);
96	entities(query, '<', "<");
97	entities(query, '>', ">");
98
99	string ignore = searcher.getIgnore();
100
101	header(query, page, common, searcher.getAnd(), searcher.getOr(),
102	ignore);
103
104	if (results)
105	{
106	body();
107	}
108	else if (this->query)
109	{
110	notfound(query, searcher.getQuery().size());
111	}
112
113	footer(query, page, common, searcher.getAnd(), searcher.getOr(),
114	ignore);
115	}
116
117	void Outputer::header(const string& query, unsigned page, vector<string>
118	common, bool and_, bool or_, const string& ignore)
119	{
120	ifstream fin(headerFile.c_str());
121
122	string line;
123	while (fin.good())
124	{
125	getline(fin, line);
126
127	conditional(line, fin, "<?ifquery?>", this->query);
128	conditional(line, fin, "<?ifresults?>", results);
129	conditional(line, fin, "<?ifor?>", or_);
130	conditional(line, fin, "<?ifand?>", and_);
131	conditional(line, fin, "<?ifignore?>", ignore != "");
132	conditional(line, fin, "<?ifcommon?>", common.size() == 1);
133	conditional(line, fin, "<?ifmanycommon?>", common.size() > 1);
134
135	tag(line, "<?version?>", programName + ' ' + programVersion + ' ' +
136	platform());
137	tag(line, "<?query?>", query);
138	tag(line, "<?range?>", range(page));
139	tag(line, "<?total?>", total());
140	tag(line, "<?time?>", duration());
141	tag(line, "<?pages?>", pages(query, page));
142	tag(line, "<?ignore?>", ignore);
143	tag(line, "<?common?>", common[0]);
144	tag(line, "<?manycommon?>", manycommon(common));
145
146	cout << line << (fin.good() ? "\n" : "");
147	}
148
149	fin.close();
150	}
151
152	void Outputer::body()
153	{
154	for (int index = 0; index < webpages.size(); index++)
155	{
156	Ranker webpage = webpages[index];
157	string title = webpage.getTitle();
158	if (title == "")
159	{
160	title = webpage.getURL();
161	entities(title, '&', "&");
162	entities(title, '\"', """);
163	entities(title, '<', "<");
164	entities(title, '>', ">");
165	}
166	string address = webpage.getURL();
167	string sample = webpage.getSample();
168	string description = webpage.getDescription();
169
170	char* csize = new char[1024];
171	sprintf(csize, "%.0fk", (double(webpage.getSize()) / double(1024)));
172
173	string size = csize;
174
175	delete [] csize;
176
177	entities(address, '&', "&");
178	entities(address, '\"', """);
179	entities(address, '<', "<");
180	entities(address, '>', ">");
181
182	ifstream fin(bodyFile.c_str());
183
184	string line;
185	while (fin.good())
186	{
187	getline(fin, line);
188
189	conditional(line, fin, "<?ifdescription?>", description != "");
190
191	tag(line, "<?address?>", address);
192	tag(line, "<?title?>", title);
193	tag(line, "<?sample?>", sample);
194	tag(line, "<?description?>", description);
195	tag(line, "<?size?>", size);
196
197	cout << line << (fin.good() ? "\n" : "");
198	}
199
200	fin.close();
201	}
202	}
203
204	void Outputer::footer(const string& query, unsigned page, vector<string>
205	common, bool and_, bool or_, const string& ignore)
206	{
207	ifstream fin(footerFile.c_str());
208
209	string line;
210	while (fin.good())
211	{
212	getline(fin, line);
213
214	conditional(line, fin, "<?ifquery?>", this->query);
215	conditional(line, fin, "<?ifresults?>", results);
216	conditional(line, fin, "<?ifor?>", or_);
217	conditional(line, fin, "<?ifand?>", and_);
218	conditional(line, fin, "<?ifignore?>", ignore != "");
219	conditional(line, fin, "<?ifcommon?>", common.size() == 1);
220	conditional(line, fin, "<?ifmanycommon?>", common.size() > 1);
221
222	tag(line, "<?version?>", programName + ' ' + programVersion + ' ' +
223	platform());
224	tag(line, "<?query?>", query);
225	tag(line, "<?range?>", range(page));
226	tag(line, "<?total?>", total());
227	tag(line, "<?time?>", duration());
228	tag(line, "<?pages?>", pages(query, page));
229	tag(line, "<?ignore?>", ignore);
230	tag(line, "<?common?>", common[0]);
231	tag(line, "<?manycommon?>", manycommon(common));
232
233	cout << line << (fin.good() ? "\n" : "");
234	}
235
236	fin.close();
237	}
238
239	void Outputer::notfound(const string& query, unsigned keywords)
240	{
241	ifstream fin(notfoundFile.c_str());
242
243	string line;
244	while (fin.good())
245	{
246	getline(fin, line);
247
248	conditional(line, fin, "<?ifmany?>", keywords > 1);
249
250	tag(line, "<?query?>", query);
251
252	cout << line << (fin.good() ? "\n" : "");
253	}
254
255	fin.close();
256	}
257
258	string Outputer::pages(string query, unsigned page)
259	{
260	entities(query, "<", '<');
261	entities(query, ">", '>');
262	entities(query, """, '\"');
263	entities(query, "&", '&');
264
265	entities(query, '%', "%25");
266	entities(query, '\t', "%09");
267	entities(query, ' ', "%20");
268	entities(query, '\"', "%22");
269	entities(query, '#', "%23");
270	entities(query, '$', "%24");
271	entities(query, '&', "%26");
272	entities(query, '\'', "%27");
273	entities(query, '+', "%2B");
274	entities(query, ',', "%2C");
275	entities(query, '/', "%2F");
276	entities(query, ':', "%3A");
277	entities(query, ';', "%3B");
278	entities(query, '<', "%3C");
279	entities(query, '=', "%3D");
280	entities(query, '>', "%3E");
281	entities(query, '?', "%3F");
282	entities(query, '@', "%40");
283	entities(query, '[', "%5B");
284	entities(query, ']', "%5D");
285	entities(query, '\\', "%5C");
286	entities(query, '^', "%5E");
287	entities(query, '`', "%60");
288	entities(query, '{', "%7B");
289	entities(query, '\|', "%7C");
290	entities(query, '}', "%7D");
291	entities(query, '~', "%7E");
292
293	string lines;
294
295	ifstream fin(pagesFile.c_str());
296
297	string line;
298	while (fin.good())
299	{
300	getline(fin, line);
301	conditional(line, fin, "<?ifprevious?>", page >= 1);
302	conditional(line, fin, "<?ifpage?>", false);
303	conditional(line, fin, "<?ifnum?>", false);
304	conditional(line, fin, "<?ifnext?>", false);
305
306	char* cprevious = new char[1024];
307
308	sprintf(cprevious, "%u", page);
309
310	string previous = cprevious;
311
312	delete [] cprevious;
313
314	tag(line, "<?query?>", query);
315	tag(line, "<?previous?>", previous);
316
317	lines += line + (fin.good() ? "\n" : "");
318	}
319
320	fin.close();
321	fin.clear();
322
323	for (int index = 0; index < numPages; index++)
324	{
325	fin.open(pagesFile.c_str());
326
327	while (fin.good())
328	{
329	getline(fin, line);
330	if (index == page)
331	{
332	conditional(line, fin, "<?ifprevious?>", false);
333	conditional(line, fin, "<?ifpage?>", true);
334	conditional(line, fin, "<?ifnum?>", false);
335	conditional(line, fin, "<?ifnext?>", false);
336
337	char* cpage = new char[1024];
338
339	sprintf(cpage, "%u", (index + 1));
340
341	string spage = cpage;
342
343	delete [] cpage;
344
345	tag(line, "<?page?>", spage);
346	}
347	else
348	{
349	conditional(line, fin, "<?ifprevious?>", false);
350	conditional(line, fin, "<?ifpage?>", false);
351	conditional(line, fin, "<?ifnum?>", true);
352	conditional(line, fin, "<?ifnext?>", false);
353
354	char* cnum = new char[1024];
355
356	sprintf(cnum, "%u", (index + 1));
357
358	string num = cnum;
359
360	delete [] cnum;
361
362	tag(line, "<?query?>", query);
363	tag(line, "<?num?>", num);
364	}
365
366	lines += line + (fin.good() ? "\n" : "");
367	}
368
369	fin.close();
370	fin.clear();
371	}
372
373	fin.open(pagesFile.c_str());
374
375	while (fin.good())
376	{
377	getline(fin, line);
378	conditional(line, fin, "<?ifprevious?>", false);
379	conditional(line, fin, "<?ifpage?>", false);
380	conditional(line, fin, "<?ifnum?>", false);
381	conditional(line, fin, "<?ifnext?>", page + 2 <= numPages);
382
383	char* cnext = new char[1024];
384
385	sprintf(cnext, "%u", (page + 2));
386
387	string next = cnext;
388
389	delete [] cnext;
390
391	tag(line, "<?query?>", query);
392	tag(line, "<?next?>", next);
393
394	lines += line + (fin.good() ? "\n" : "");
395	}
396
397	fin.close();
398
399	return lines;
400	}
401
402	string Outputer::range(unsigned page)
403	{
404	unsigned bottom = page * 10 + 1;
405	unsigned top = numWebpages > page * 10 + 10 ? page * 10 + 10 : numWebpages;
406
407	char* cbottom = new char[1024];
408	char* ctop = new char[1024];
409
410	sprintf(cbottom, "%u", bottom);
411	sprintf(ctop, "%u", top);
412
413	string range = string(cbottom) + " - " + ctop;
414
415	delete [] cbottom;
416	delete [] ctop;
417
418	return range;
419	}
420
421	string Outputer::total()
422	{
423	char* ctotal = new char[1024];
424
425	sprintf(ctotal, "%u", numWebpages);
426
427	string total = ctotal;
428
429	delete [] ctotal;
430
431	return total;
432	}
433
434	string Outputer::duration()
435	{
436	char* ctime = new char[1024];
437	sprintf(ctime, "%.2f", time);
438
439	string duration = ctime;
440
441	delete [] ctime;
442
443	return duration;
444	}
445
446	string Outputer::manycommon(vector<string> common)
447	{
448	string line;
449
450	for (int index = 0; index < common.size(); index++)
451	{
452	line += common[index];
453
454	if (index != common.size() - 1) line += ' ';
455	}
456
457	return line;
458	}
459
460	void Outputer::tag(string& line, char* tag, const string& replacement)
461	{
462	int begin = 0;
463	while (begin < line.length())
464	{
465	int spot = line.find(tag, begin);
466
467	if (spot != string::npos)
468	{
469	line.replace(spot, strlen(tag), replacement);
470	}
471	else
472	{
473	break;
474	}
475
476	begin = spot + replacement.length();
477	}
478	}
479
480	void Outputer::conditional(string& line, ifstream& fin, char* tag, bool
481	condition)
482	{
483	unsigned begin = 0;
484	while (begin < line.length())
485	{
486	unsigned start = line.find(tag, begin);
487	unsigned finish = line.find("<?endif?>", start);
488
489	if (start == string::npos) break;
490
491	string next;
492	while (finish == string::npos)
493	{
494	getline(fin, next);
495	line += '\n' + next;
496	finish = line.find("<?endif?>", start);
497	}
498
499	if (condition)
500	{
501	line.erase(start, strlen(tag));
502	line.erase(finish - strlen(tag), 9);
503
504	begin = finish - strlen(tag) - 9;
505	}
506	else
507	{
508	line.erase(start, finish - start + 9);
509
510	begin = start;
511	}
512	}
513	}