trunk/Search/Outputer.cpp

/* ============================================================================
 * Douglas Thrift's Search Engine License
 *
 * Copyright (C) 2002, 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(string& headerFile, string& bodyFile, string& footerFile,
        string& notfoundFile, 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 ? "true" : "false") << "\n"
                        << "results = " << (results ? "true" : "false") << "\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(string& query, unsigned page, vector<string> common,
        bool and_, bool or_, 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, "<?query?>", query);

                string fred = range(page);

                tag(line, "<?range?>", fred);

                string martha = total();

                tag(line, "<?total?>", martha);

                string george = duration();

                tag(line, "<?time?>", george);

                string derf = pages(query, page);

                tag(line, "<?pages?>", derf);
                tag(line, "<?ignore?>", ignore);
                tag(line, "<?common?>", common[0]);

                string elaine = manycommon(common);

                tag(line, "<?manycommon?>", elaine);

                cout << line << "\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 << "\n";
                }

                fin.close();
        }
}

void Outputer::footer(string& query, unsigned page, vector<string> common,
        bool and_, bool or_, 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, "<?query?>", query);

                string fred = range(page);

                tag(line, "<?range?>", fred);

                string martha = total();

                tag(line, "<?total?>", martha);

                string george = duration();

                tag(line, "<?time?>", george);

                string derf = pages(query, page);

                tag(line, "<?pages?>", derf);
                tag(line, "<?ignore?>", ignore);
                tag(line, "<?common?>", common[0]);

                string elaine = manycommon(common);

                tag(line, "<?manycommon?>", elaine);

                cout << line << "\n";
        }

        fin.close();
}

void Outputer::notfound(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 << "\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 + "\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 + "\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 + "\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, 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:	1
Committed:	2002-12-04T20:22:59-08:00 (22 years, 6 months ago) by douglas
File size:	12640 byte(s)
Log Message:	Initial revision
#	Content
1	/* ============================================================================
2	* Douglas Thrift's Search Engine License
3	*
4	* Copyright (C) 2002, 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(string& headerFile, string& bodyFile, string& footerFile,
54	string& notfoundFile, 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 ? "true" : "false") << "\n"
90	<< "results = " << (results ? "true" : "false") << "\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(string& query, unsigned page, vector<string> common,
118	bool and_, bool or_, 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, "<?query?>", query);
136
137	string fred = range(page);
138
139	tag(line, "<?range?>", fred);
140
141	string martha = total();
142
143	tag(line, "<?total?>", martha);
144
145	string george = duration();
146
147	tag(line, "<?time?>", george);
148
149	string derf = pages(query, page);
150
151	tag(line, "<?pages?>", derf);
152	tag(line, "<?ignore?>", ignore);
153	tag(line, "<?common?>", common[0]);
154
155	string elaine = manycommon(common);
156
157	tag(line, "<?manycommon?>", elaine);
158
159	cout << line << "\n";
160	}
161
162	fin.close();
163	}
164
165	void Outputer::body()
166	{
167	for (int index = 0; index < webpages.size(); index++)
168	{
169	Ranker webpage = webpages[index];
170	string title = webpage.getTitle();
171	if (title == "")
172	{
173	title = webpage.getURL();
174	entities(title, '&', "&");
175	entities(title, '\"', """);
176	entities(title, '<', "<");
177	entities(title, '>', ">");
178	}
179	string address = webpage.getURL();
180	string sample = webpage.getSample();
181	string description = webpage.getDescription();
182
183	char* csize = new char[1024];
184	sprintf(csize, "%.0fk", (double(webpage.getSize()) / double(1024)));
185
186	string size = csize;
187
188	delete [] csize;
189
190	entities(address, '&', "&");
191	entities(address, '\"', """);
192	entities(address, '<', "<");
193	entities(address, '>', ">");
194
195	ifstream fin(bodyFile.c_str());
196
197	string line;
198	while (fin.good())
199	{
200	getline(fin, line);
201
202	conditional(line, fin, "<?ifdescription?>", description != "");
203
204	tag(line, "<?address?>", address);
205	tag(line, "<?title?>", title);
206	tag(line, "<?sample?>", sample);
207	tag(line, "<?description?>", description);
208	tag(line, "<?size?>", size);
209
210	cout << line << "\n";
211	}
212
213	fin.close();
214	}
215	}
216
217	void Outputer::footer(string& query, unsigned page, vector<string> common,
218	bool and_, bool or_, string& ignore)
219	{
220	ifstream fin(footerFile.c_str());
221
222	string line;
223	while (fin.good())
224	{
225	getline(fin, line);
226
227	conditional(line, fin, "<?ifquery?>", this->query);
228	conditional(line, fin, "<?ifresults?>", results);
229	conditional(line, fin, "<?ifor?>", or_);
230	conditional(line, fin, "<?ifand?>", and_);
231	conditional(line, fin, "<?ifignore?>", ignore != "");
232	conditional(line, fin, "<?ifcommon?>", common.size() == 1);
233	conditional(line, fin, "<?ifmanycommon?>", common.size() > 1);
234
235	tag(line, "<?query?>", query);
236
237	string fred = range(page);
238
239	tag(line, "<?range?>", fred);
240
241	string martha = total();
242
243	tag(line, "<?total?>", martha);
244
245	string george = duration();
246
247	tag(line, "<?time?>", george);
248
249	string derf = pages(query, page);
250
251	tag(line, "<?pages?>", derf);
252	tag(line, "<?ignore?>", ignore);
253	tag(line, "<?common?>", common[0]);
254
255	string elaine = manycommon(common);
256
257	tag(line, "<?manycommon?>", elaine);
258
259	cout << line << "\n";
260	}
261
262	fin.close();
263	}
264
265	void Outputer::notfound(string& query, unsigned keywords)
266	{
267	ifstream fin(notfoundFile.c_str());
268
269	string line;
270	while (fin.good())
271	{
272	getline(fin, line);
273
274	conditional(line, fin, "<?ifmany?>", keywords > 1);
275
276	tag(line, "<?query?>", query);
277
278	cout << line << "\n";
279	}
280
281	fin.close();
282	}
283
284	string Outputer::pages(string query, unsigned page)
285	{
286	entities(query, "<", '<');
287	entities(query, ">", '>');
288	entities(query, """, '\"');
289	entities(query, "&", '&');
290
291	entities(query, '%', "%25");
292	entities(query, '\t', "%09");
293	entities(query, ' ', "%20");
294	entities(query, '\"', "%22");
295	entities(query, '#', "%23");
296	entities(query, '$', "%24");
297	entities(query, '&', "%26");
298	entities(query, '\'', "%27");
299	entities(query, '+', "%2B");
300	entities(query, ',', "%2C");
301	entities(query, '/', "%2F");
302	entities(query, ':', "%3A");
303	entities(query, ';', "%3B");
304	entities(query, '<', "%3C");
305	entities(query, '=', "%3D");
306	entities(query, '>', "%3E");
307	entities(query, '?', "%3F");
308	entities(query, '@', "%40");
309	entities(query, '[', "%5B");
310	entities(query, ']', "%5D");
311	entities(query, '\\', "%5C");
312	entities(query, '^', "%5E");
313	entities(query, '`', "%60");
314	entities(query, '{', "%7B");
315	entities(query, '\|', "%7C");
316	entities(query, '}', "%7D");
317	entities(query, '~', "%7E");
318
319	string lines;
320
321	ifstream fin(pagesFile.c_str());
322
323	string line;
324	while (fin.good())
325	{
326	getline(fin, line);
327	conditional(line, fin, "<?ifprevious?>", page >= 1);
328	conditional(line, fin, "<?ifpage?>", false);
329	conditional(line, fin, "<?ifnum?>", false);
330	conditional(line, fin, "<?ifnext?>", false);
331
332	char* cprevious = new char[1024];
333
334	sprintf(cprevious, "%u", page);
335
336	string previous = cprevious;
337
338	delete [] cprevious;
339
340	tag(line, "<?query?>", query);
341	tag(line, "<?previous?>", previous);
342
343	lines += line + "\n";
344	}
345
346	fin.close();
347	fin.clear();
348
349	for (int index = 0; index < numPages; index++)
350	{
351	fin.open(pagesFile.c_str());
352
353	while (fin.good())
354	{
355	getline(fin, line);
356	if (index == page)
357	{
358	conditional(line, fin, "<?ifprevious?>", false);
359	conditional(line, fin, "<?ifpage?>", true);
360	conditional(line, fin, "<?ifnum?>", false);
361	conditional(line, fin, "<?ifnext?>", false);
362
363	char* cpage = new char[1024];
364
365	sprintf(cpage, "%u", (index + 1));
366
367	string spage = cpage;
368
369	delete [] cpage;
370
371	tag(line, "<?page?>", spage);
372	}
373	else
374	{
375	conditional(line, fin, "<?ifprevious?>", false);
376	conditional(line, fin, "<?ifpage?>", false);
377	conditional(line, fin, "<?ifnum?>", true);
378	conditional(line, fin, "<?ifnext?>", false);
379
380	char* cnum = new char[1024];
381
382	sprintf(cnum, "%u", (index + 1));
383
384	string num = cnum;
385
386	delete [] cnum;
387
388	tag(line, "<?query?>", query);
389	tag(line, "<?num?>", num);
390	}
391
392	lines += line + "\n";
393	}
394
395	fin.close();
396	fin.clear();
397	}
398
399	fin.open(pagesFile.c_str());
400
401	while (fin.good())
402	{
403	getline(fin, line);
404	conditional(line, fin, "<?ifprevious?>", false);
405	conditional(line, fin, "<?ifpage?>", false);
406	conditional(line, fin, "<?ifnum?>", false);
407	conditional(line, fin, "<?ifnext?>", page + 2 <= numPages);
408
409	char* cnext = new char[1024];
410
411	sprintf(cnext, "%u", (page + 2));
412
413	string next = cnext;
414
415	delete [] cnext;
416
417	tag(line, "<?query?>", query);
418	tag(line, "<?next?>", next);
419
420	lines += line + "\n";
421	}
422
423	fin.close();
424
425	return lines;
426	}
427
428	string Outputer::range(unsigned page)
429	{
430	unsigned bottom = page * 10 + 1;
431	unsigned top = numWebpages > page * 10 + 10 ? page * 10 + 10 : numWebpages;
432
433	char* cbottom = new char[1024];
434	char* ctop = new char[1024];
435
436	sprintf(cbottom, "%u", bottom);
437	sprintf(ctop, "%u", top);
438
439	string range = string(cbottom) + " - " + ctop;
440
441	delete [] cbottom;
442	delete [] ctop;
443
444	return range;
445	}
446
447	string Outputer::total()
448	{
449	char* ctotal = new char[1024];
450
451	sprintf(ctotal, "%u", numWebpages);
452
453	string total = ctotal;
454
455	delete [] ctotal;
456
457	return total;
458	}
459
460	string Outputer::duration()
461	{
462	char* ctime = new char[1024];
463	sprintf(ctime, "%.2f", time);
464
465	string duration = ctime;
466
467	delete [] ctime;
468
469	return duration;
470	}
471
472	string Outputer::manycommon(vector<string> common)
473	{
474	string line;
475
476	for (int index = 0; index < common.size(); index++)
477	{
478	line += common[index];
479
480	if (index != common.size() - 1) line += ' ';
481	}
482
483	return line;
484	}
485
486	void Outputer::tag(string& line, char* tag, string& replacement)
487	{
488	int begin = 0;
489	while (begin < line.length())
490	{
491	int spot = line.find(tag, begin);
492
493	if (spot != string::npos)
494	{
495	line.replace(spot, strlen(tag), replacement);
496	}
497	else
498	{
499	break;
500	}
501
502	begin = spot + replacement.length();
503	}
504	}
505
506	void Outputer::conditional(string& line, ifstream& fin, char* tag, bool
507	condition)
508	{
509	unsigned begin = 0;
510	while (begin < line.length())
511	{
512	unsigned start = line.find(tag, begin);
513	unsigned finish = line.find("<?endif?>", start);
514
515	if (start == string::npos) break;
516
517	string next;
518	while (finish == string::npos)
519	{
520	getline(fin, next);
521	line += '\n' + next;
522	finish = line.find("<?endif?>", start);
523	}
524
525	if (condition)
526	{
527	line.erase(start, strlen(tag));
528	line.erase(finish - strlen(tag), 9);
529
530	begin = finish - strlen(tag) - 9;
531	}
532	else
533	{
534	line.erase(start, finish - start + 9);
535
536	begin = start;
537	}
538	}
539	}