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 ? "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(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, "<?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 << "\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(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, "<?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 << "\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 << "\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, 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:	28
Committed:	2003-01-02T19:42:33-08:00 (22 years, 5 months ago) by douglas
File size:	12447 byte(s)
Log Message:	Changed Copyright notices to state 2002-2003.
#	User	Rev	Content
1	douglas	1	/* ============================================================================
2			* Douglas Thrift's Search Engine License
3			*
4	douglas	28	* Copyright (C) 2002-2003, Douglas Thrift. All Rights Reserved.
5	douglas	1	* 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	douglas	28	Outputer::Outputer(const string& headerFile, const string& bodyFile, const
54	douglas	15	string& footerFile, const string& notfoundFile, const string& pagesFile)
55	douglas	1	{
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	douglas	15	void Outputer::header(const string& query, unsigned page, vector<string>
118			common, bool and_, bool or_, const string& ignore)
119	douglas	1	{
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	douglas	15	tag(line, "<?range?>", range(page));
137			tag(line, "<?total?>", total());
138			tag(line, "<?time?>", duration());
139			tag(line, "<?pages?>", pages(query, page));
140	douglas	1	tag(line, "<?ignore?>", ignore);
141			tag(line, "<?common?>", common[0]);
142	douglas	15	tag(line, "<?manycommon?>", manycommon(common));
143	douglas	1
144			cout << line << "\n";
145			}
146
147			fin.close();
148			}
149
150			void Outputer::body()
151			{
152			for (int index = 0; index < webpages.size(); index++)
153			{
154			Ranker webpage = webpages[index];
155			string title = webpage.getTitle();
156			if (title == "")
157			{
158			title = webpage.getURL();
159			entities(title, '&', "&");
160			entities(title, '\"', """);
161			entities(title, '<', "<");
162			entities(title, '>', ">");
163			}
164			string address = webpage.getURL();
165			string sample = webpage.getSample();
166			string description = webpage.getDescription();
167
168			char* csize = new char[1024];
169			sprintf(csize, "%.0fk", (double(webpage.getSize()) / double(1024)));
170
171			string size = csize;
172
173			delete [] csize;
174
175			entities(address, '&', "&");
176			entities(address, '\"', """);
177			entities(address, '<', "<");
178			entities(address, '>', ">");
179
180			ifstream fin(bodyFile.c_str());
181
182			string line;
183			while (fin.good())
184			{
185			getline(fin, line);
186
187			conditional(line, fin, "<?ifdescription?>", description != "");
188
189			tag(line, "<?address?>", address);
190			tag(line, "<?title?>", title);
191			tag(line, "<?sample?>", sample);
192			tag(line, "<?description?>", description);
193			tag(line, "<?size?>", size);
194
195			cout << line << "\n";
196			}
197
198			fin.close();
199			}
200			}
201
202	douglas	15	void Outputer::footer(const string& query, unsigned page, vector<string>
203			common, bool and_, bool or_, const string& ignore)
204	douglas	1	{
205			ifstream fin(footerFile.c_str());
206
207			string line;
208			while (fin.good())
209			{
210			getline(fin, line);
211
212			conditional(line, fin, "<?ifquery?>", this->query);
213			conditional(line, fin, "<?ifresults?>", results);
214			conditional(line, fin, "<?ifor?>", or_);
215			conditional(line, fin, "<?ifand?>", and_);
216			conditional(line, fin, "<?ifignore?>", ignore != "");
217			conditional(line, fin, "<?ifcommon?>", common.size() == 1);
218			conditional(line, fin, "<?ifmanycommon?>", common.size() > 1);
219
220			tag(line, "<?query?>", query);
221	douglas	15	tag(line, "<?range?>", range(page));
222			tag(line, "<?total?>", total());
223			tag(line, "<?time?>", duration());
224			tag(line, "<?pages?>", pages(query, page));
225	douglas	1	tag(line, "<?ignore?>", ignore);
226			tag(line, "<?common?>", common[0]);
227	douglas	15	tag(line, "<?manycommon?>", manycommon(common));
228	douglas	1
229			cout << line << "\n";
230			}
231
232			fin.close();
233			}
234
235	douglas	15	void Outputer::notfound(const string& query, unsigned keywords)
236	douglas	1	{
237			ifstream fin(notfoundFile.c_str());
238
239			string line;
240			while (fin.good())
241			{
242			getline(fin, line);
243
244			conditional(line, fin, "<?ifmany?>", keywords > 1);
245
246			tag(line, "<?query?>", query);
247
248			cout << line << "\n";
249			}
250
251			fin.close();
252			}
253
254			string Outputer::pages(string query, unsigned page)
255			{
256			entities(query, "<", '<');
257			entities(query, ">", '>');
258			entities(query, """, '\"');
259			entities(query, "&", '&');
260
261			entities(query, '%', "%25");
262			entities(query, '\t', "%09");
263			entities(query, ' ', "%20");
264			entities(query, '\"', "%22");
265			entities(query, '#', "%23");
266			entities(query, '$', "%24");
267			entities(query, '&', "%26");
268			entities(query, '\'', "%27");
269			entities(query, '+', "%2B");
270			entities(query, ',', "%2C");
271			entities(query, '/', "%2F");
272			entities(query, ':', "%3A");
273			entities(query, ';', "%3B");
274			entities(query, '<', "%3C");
275			entities(query, '=', "%3D");
276			entities(query, '>', "%3E");
277			entities(query, '?', "%3F");
278			entities(query, '@', "%40");
279			entities(query, '[', "%5B");
280			entities(query, ']', "%5D");
281			entities(query, '\\', "%5C");
282			entities(query, '^', "%5E");
283			entities(query, '`', "%60");
284			entities(query, '{', "%7B");
285			entities(query, '\|', "%7C");
286			entities(query, '}', "%7D");
287			entities(query, '~', "%7E");
288
289			string lines;
290
291			ifstream fin(pagesFile.c_str());
292
293			string line;
294			while (fin.good())
295			{
296			getline(fin, line);
297			conditional(line, fin, "<?ifprevious?>", page >= 1);
298			conditional(line, fin, "<?ifpage?>", false);
299			conditional(line, fin, "<?ifnum?>", false);
300			conditional(line, fin, "<?ifnext?>", false);
301
302			char* cprevious = new char[1024];
303
304			sprintf(cprevious, "%u", page);
305
306			string previous = cprevious;
307
308			delete [] cprevious;
309
310			tag(line, "<?query?>", query);
311			tag(line, "<?previous?>", previous);
312
313			lines += line + "\n";
314			}
315
316			fin.close();
317			fin.clear();
318
319			for (int index = 0; index < numPages; index++)
320			{
321			fin.open(pagesFile.c_str());
322
323			while (fin.good())
324			{
325			getline(fin, line);
326			if (index == page)
327			{
328			conditional(line, fin, "<?ifprevious?>", false);
329			conditional(line, fin, "<?ifpage?>", true);
330			conditional(line, fin, "<?ifnum?>", false);
331			conditional(line, fin, "<?ifnext?>", false);
332
333			char* cpage = new char[1024];
334
335			sprintf(cpage, "%u", (index + 1));
336
337			string spage = cpage;
338
339			delete [] cpage;
340
341			tag(line, "<?page?>", spage);
342			}
343			else
344			{
345			conditional(line, fin, "<?ifprevious?>", false);
346			conditional(line, fin, "<?ifpage?>", false);
347			conditional(line, fin, "<?ifnum?>", true);
348			conditional(line, fin, "<?ifnext?>", false);
349
350			char* cnum = new char[1024];
351
352			sprintf(cnum, "%u", (index + 1));
353
354			string num = cnum;
355
356			delete [] cnum;
357
358			tag(line, "<?query?>", query);
359			tag(line, "<?num?>", num);
360			}
361
362			lines += line + "\n";
363			}
364
365			fin.close();
366			fin.clear();
367			}
368
369			fin.open(pagesFile.c_str());
370
371			while (fin.good())
372			{
373			getline(fin, line);
374			conditional(line, fin, "<?ifprevious?>", false);
375			conditional(line, fin, "<?ifpage?>", false);
376			conditional(line, fin, "<?ifnum?>", false);
377			conditional(line, fin, "<?ifnext?>", page + 2 <= numPages);
378
379			char* cnext = new char[1024];
380
381			sprintf(cnext, "%u", (page + 2));
382
383			string next = cnext;
384
385			delete [] cnext;
386
387			tag(line, "<?query?>", query);
388			tag(line, "<?next?>", next);
389
390			lines += line + "\n";
391			}
392
393			fin.close();
394
395			return lines;
396			}
397
398			string Outputer::range(unsigned page)
399			{
400			unsigned bottom = page * 10 + 1;
401			unsigned top = numWebpages > page * 10 + 10 ? page * 10 + 10 : numWebpages;
402
403			char* cbottom = new char[1024];
404			char* ctop = new char[1024];
405
406			sprintf(cbottom, "%u", bottom);
407			sprintf(ctop, "%u", top);
408
409			string range = string(cbottom) + " - " + ctop;
410
411			delete [] cbottom;
412			delete [] ctop;
413
414			return range;
415			}
416
417			string Outputer::total()
418			{
419			char* ctotal = new char[1024];
420
421			sprintf(ctotal, "%u", numWebpages);
422
423			string total = ctotal;
424
425			delete [] ctotal;
426
427			return total;
428			}
429
430			string Outputer::duration()
431			{
432			char* ctime = new char[1024];
433			sprintf(ctime, "%.2f", time);
434
435			string duration = ctime;
436
437			delete [] ctime;
438
439			return duration;
440			}
441
442			string Outputer::manycommon(vector<string> common)
443			{
444			string line;
445
446			for (int index = 0; index < common.size(); index++)
447			{
448			line += common[index];
449
450			if (index != common.size() - 1) line += ' ';
451			}
452
453			return line;
454			}
455
456	douglas	15	void Outputer::tag(string& line, char* tag, const string& replacement)
457	douglas	1	{
458			int begin = 0;
459			while (begin < line.length())
460			{
461			int spot = line.find(tag, begin);
462
463			if (spot != string::npos)
464			{
465			line.replace(spot, strlen(tag), replacement);
466			}
467			else
468			{
469			break;
470			}
471
472			begin = spot + replacement.length();
473			}
474			}
475
476			void Outputer::conditional(string& line, ifstream& fin, char* tag, bool
477			condition)
478			{
479			unsigned begin = 0;
480			while (begin < line.length())
481			{
482			unsigned start = line.find(tag, begin);
483			unsigned finish = line.find("<?endif?>", start);
484
485			if (start == string::npos) break;
486
487			string next;
488			while (finish == string::npos)
489			{
490			getline(fin, next);
491			line += '\n' + next;
492			finish = line.find("<?endif?>", start);
493			}
494
495			if (condition)
496			{
497			line.erase(start, strlen(tag));
498			line.erase(finish - strlen(tag), 9);
499
500			begin = finish - strlen(tag) - 9;
501			}
502			else
503			{
504			line.erase(start, finish - start + 9);
505
506			begin = start;
507			}
508			}
509			}