trunk/Search/Search.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 Main
//
// Douglas Thrift
//
// Search.cpp

#include "Search.h"
#include "Indexer.h"
#include "Searcher.h"
#include "Outputer.h"

#ifndef _WIN32
#include <sys/utsname.h>
#else
#include <windows.h>
#endif // _WIN32

string program;
string programName = "Douglas Thrift's Search Engine";
string programVersion = "1.1alpha";
bool debug = false;

int main(int argc, char* argv[])
{
        program = argv[0];

        bool indexMode = false;
        string indexURL;
        set<string> indexDomains;
        set<string> indexRestrictions;

        unsigned page = 1;
        string query;

        vector<string> indices;

        string header = "header.html";
        string body = "body.html";
        string footer = "footer.html";
        string notfound = "notfound.html";
        string pages = "pages.html";

        for (int index = 1; index < argc; index++)
        {
                string arg(argv[index]);

                if (arg == "-help")
                {
                        usage();
                        return 0;
                }
                else if (arg == "-version")
                {
                        version();
                        return 0;
                }
                else if (arg == "-license")
                {
                        license();
                        return 0;
                }
                else if (arg == "-P")
                {
                        if (++index < argc)
                        {
                                page = strtoul(argv[index],0,0);
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-i")
                {
                        indexMode = true;

                        if (++index < argc)
                        {
                                indexURL = argv[index];
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-d")
                {
                        if (++index < argc)
                        {
                                indexDomains.insert(argv[index]);
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-r")
                {
                        if (++index < argc)
                        {
                                indexRestrictions.insert(argv[index]);
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-h")
                {
                        if (++index < argc)
                        {
                                header = argv[index];
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-b")
                {
                        if (++index < argc)
                        {
                                body = argv[index];
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-f")
                {
                        if (++index < argc)
                        {
                                footer = argv[index];
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-n")
                {
                        if (++index < argc)
                        {
                                notfound = argv[index];
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-p")
                {
                        if (++index < argc)
                        {
                                pages = argv[index];
                        }
                        else
                        {
                                cerr << program << ": Bad arguments\n";
                                return 1;
                        }
                }
                else if (arg == "-D")
                {
                        debug = true;
                }
                else
                {
                        indices.push_back(arg);
                }
        }

        if (indices.size() < 1)
        {
                usage();
                return 0;
        }

        if (indexMode)
        {
                if (indices.size() > 1)
                {
                        cerr << program << ": Too many indices, can only build one index"
                                << " at a time\n";
                        return 1;
                }

                if (indexDomains.size() < 1)
                {
                        cerr << program << ": Must specify at least one domain\n";
                        return 1;
                }

                Indexer indexer(indices[0], indexDomains, indexRestrictions);

                indexer.index(indexURL);
        }
        else
        {
                string line;
                getline(cin, line);
                query = line;

                Searcher searcher(query);

                searcher.search(indices);

                Outputer outputer(header, body, footer, notfound,
                        pages);

                outputer.output(searcher, page < 1 ? page : --page);
        }

        return 0;
}

string platform()
{
        string platform;
        string os;
        string version;
        string architecture;
        string marketing;

#ifdef _WIN32
        OSVERSIONINFO* computer = new OSVERSIONINFO;
        computer->dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
        GetVersionEx(computer);

        os = computer->dwPlatformId == VER_PLATFORM_WIN32_NT ? "Windows NT" :
                "Windows";
        unsigned major = computer->dwMajorVersion;
        unsigned minor = computer->dwMinorVersion;

        delete computer;

        SYSTEM_INFO* system = new SYSTEM_INFO;
        GetSystemInfo(system);

        switch (system->wProcessorArchitecture)
        {
        case PROCESSOR_ARCHITECTURE_INTEL:
                architecture = "ix86";
                break;
        case PROCESSOR_ARCHITECTURE_MIPS:
                architecture = "mips";
                break;
        case PROCESSOR_ARCHITECTURE_ALPHA:
                architecture = "alpha";
                break;
        case PROCESSOR_ARCHITECTURE_PPC:
                architecture = "ppc";
                break;
        case PROCESSOR_ARCHITECTURE_IA64:
                architecture = "ia64";
                break;
        case PROCESSOR_ARCHITECTURE_IA32_ON_WIN64:
                architecture = "ix86_on_win64";
                break;
        case PROCESSOR_ARCHITECTURE_AMD64:
                architecture = "amd64";
                break;
        default:
                architecture = "unknown";
                break;
        }

        char* cversion = new char[1024];
        sprintf(cversion, "%u.%u", major, minor);
        version = cversion;

        delete [] cversion;

        if (major == 4 && minor <= 3 && os != "Windows NT")
        {
                marketing = " [Windows 95]";
        }
        else if (major == 4 && minor == 10 && os != "Windows NT")
        {
                marketing = " [Windows 98]";
        }
        else if (major == 5 && minor == 0 && os == "Windows NT")
        {
                marketing = " [Windows 2000]";
        }
        else if (major == 4 && minor == 90 && os != "Windows NT")
        {
                marketing = " [Windows ME]";
        }
        else if (major == 5 && minor == 1 && os == "Windows NT")
        {
                marketing = " [Windows XP]";
        }
        else if (major == 5 && minor == 2 && os == "Windows NT")
        {
                marketing = " [Windows .NET Server]";
        }
#else // _WIN32
        struct utsname* computer = new struct utsname;
        uname(computer);

        os =  computer->sysname;
        version = computer->release;
        architecture = computer->machine;

        delete computer;
#endif // _WIN32

        platform = "(" + os + " " + version + marketing + " " + architecture + ")";

        return platform;
}

void usage()
{
        string tab(8 + program.length(), ' ');

        cout << "Usage: " << program << " [index ...] [-P page] [-h header] [-b bo"
                << "dy]\n"
                << tab << "[-f footer] [-n notfound] [-p pages]\n"
                << tab << "[-i begin] [-d domain ...] [-r restriction ...]\n"
                << tab << "[-D] [-version] [-help]\n"
                << "Options:\n"
                << "  index             Index file to use (can only use one file for i"
                << "ndexing)\n"
                << "  -P page           Page of search to display (defaults to 1)\n"
                << "  -h header         Header template to use (defaults to header.htm"
                << "l)\n"
                << "  -b body           Body template to use (defaults to body.html)\n"
                << "  -f footer         Footer template to use (defaults to footer.htm"
                << "l)\n"
                << "  -n notfound       Not found template to use (defaults to notfoun"
                << "d.html)\n"
                << "  -p pages          Pages template to use (defaults to pages.html)"
                << "\n"
                << "  -i begin          URL to begin indexing (causes indexing rather "
                << "than search)\n"
                << "  -d domain         Domain to include in indexing\n"
                << "  -r restriction    URL to restrict from indexing\n"
                << "  -D                Display debug information\n"
                << "  -version          Display version information and exit\n"
                << "  -license          Display license information and exit\n"
                << "  -help             Display this message and exit\n";
}

void version()
{
        cout << programName << " " << programVersion << " "<< platform() << "\n\n"
                << "   Copyright (C) 2002, Douglas Thrift. All Rights Reserved.\n\n"
                << "   This product includes software developed by Douglas Thrift\n"
                << "   (http://computers.douglasthrift.net/searchengine/).\n";
}

void license()
{
        cout << "License:\n"
                << "   Douglas Thrift's Search Engine License\n\n"
                << "   Copyright (C) 2002, Douglas Thrift. All Rights Reserved.\n\n"
                << "   Redistribution and use in source and binary forms, with or with"
                << "out\n"
                << "   modification, are permitted provided that the following conditi"
                << "ons are met:\n\n"
                << "   1. Redistributions of source code must retain the above copyrig"
                << "ht notice,\n"
                << "      this list of conditions and the following disclaimer.\n\n"
                << "   2. Redistributions in binary form must reproduce the above copy"
                << "right notice,\n"
                << "      this list of conditions and the following disclaimer in the "
                << "documentation\n"
                << "      and/or other materials provided with the distribution.\n\n"
                << "   3. The end-user documentation included with the redistribution,"
                << " if any, must\n"
                << "      include the following acknowledgment:\n\n"
                << "         \"This product includes software developed by Douglas Thr"
                << "ift\n"
                << "         (http://computers.douglasthrift.net/searchengine/).\"\n\n"
                << "      Alternately, this acknowledgment may appear in the software "
                << "itself, if\n"
                << "      and wherever such third-party acknowledgments normally appea"
                << "r.\n\n"
                << "   4. The names \"Douglas Thrift\" and \"Douglas Thrift\'s Search "
                << "Engine\" must not\n"
                << "      be used to endorse or promote products derived from this sof"
                << "tware without\n"
                << "      specific prior written permission. For written permission, p"
                << "lease visit\n"
                << "      http://www.douglasthrift.net/contact.cgi for contact inform"
                << "ation.\n\n"
                << "   5. Products derived from this software may not be called \"Doug"
                << "las Thrift\'s\n"
                << "      Search Engine\", nor may \"Douglas Thrift\'s Search Engine\""
                << " appear in their\n"
                << "      name, without prior written permission.\n\n"
                << "   THIS SOFTWARE IS PROVIDED \"AS IS\" AND ANY EXPRESS OR IMPLIED "
                << "WARRANTIES,\n"
                << "   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHA"
                << "NTABILITY AND\n"
                << "   FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SH"
                << "ALL THE\n"
                << "   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIR"
                << "ECT,\n"
                << "   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU"
                << "DING, BUT NOT\n"
                << "   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS O"
                << "F USE, DATA,\n"
                << "   OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY"
                << " THEORY OF\n"
                << "   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCL"
                << "UDING\n"
                << "   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF T"
                << "HIS SOFTWARE,\n"
                << "   EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n";
}

void entities(string& line, char character, char* entity)
{
        int begin = 0;

        while (begin < line.length())
        {
                int spot = line.find(character, begin);

                int end = spot + 1;

                if (spot != string::npos)
                {
                        line.replace(spot, 1, entity);
                }
                else
                {
                        break;
                }

                begin = end;
        }
}

void entities(string& line, char* entity, char character)
{
        int begin = 0;

        while (begin < line.length())
        {
                int spot = line.find(entity, begin);

                int end = spot + 1;

                if (spot != string::npos)
                {
                        line.replace(spot, strlen(entity), 1, character);
                }
                else
                {
                        break;
                }

                begin = end;
        }
}

void normalize(string& abbynormal)
{
        for (unsigned index = 0; index < abbynormal.length(); index++)
        {
                if (isspace(abbynormal[index]))
                {
                        unsigned next = index + 1;
                        while (isspace(abbynormal[next]))
                        {
                                next++;
                        }
                        abbynormal.replace(index, next - index, 1, abbynormal[index]);
                }
        }

        if (isspace(abbynormal[0])) abbynormal.erase(0, 1);
        if (isspace(abbynormal[abbynormal.length() - 1]))
                abbynormal.erase(abbynormal.length() - 1, 1);
}
Revision:	1
Committed:	2002-12-04T20:22:59-08:00 (22 years, 6 months ago) by douglas
File size:	13491 byte(s)
Log Message:	Initial revision
#	User	Rev	Content
1	douglas	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 Main
46			//
47			// Douglas Thrift
48			//
49			// Search.cpp
50
51			#include "Search.h"
52			#include "Indexer.h"
53			#include "Searcher.h"
54			#include "Outputer.h"
55
56			#ifndef _WIN32
57			#include <sys/utsname.h>
58			#else
59			#include <windows.h>
60			#endif // _WIN32
61
62			string program;
63			string programName = "Douglas Thrift's Search Engine";
64			string programVersion = "1.1alpha";
65			bool debug = false;
66
67			int main(int argc, char* argv[])
68			{
69			program = argv[0];
70
71			bool indexMode = false;
72			string indexURL;
73			set<string> indexDomains;
74			set<string> indexRestrictions;
75
76			unsigned page = 1;
77			string query;
78
79			vector<string> indices;
80
81			string header = "header.html";
82			string body = "body.html";
83			string footer = "footer.html";
84			string notfound = "notfound.html";
85			string pages = "pages.html";
86
87			for (int index = 1; index < argc; index++)
88			{
89			string arg(argv[index]);
90
91			if (arg == "-help")
92			{
93			usage();
94			return 0;
95			}
96			else if (arg == "-version")
97			{
98			version();
99			return 0;
100			}
101			else if (arg == "-license")
102			{
103			license();
104			return 0;
105			}
106			else if (arg == "-P")
107			{
108			if (++index < argc)
109			{
110			page = strtoul(argv[index],0,0);
111			}
112			else
113			{
114			cerr << program << ": Bad arguments\n";
115			return 1;
116			}
117			}
118			else if (arg == "-i")
119			{
120			indexMode = true;
121
122			if (++index < argc)
123			{
124			indexURL = argv[index];
125			}
126			else
127			{
128			cerr << program << ": Bad arguments\n";
129			return 1;
130			}
131			}
132			else if (arg == "-d")
133			{
134			if (++index < argc)
135			{
136			indexDomains.insert(argv[index]);
137			}
138			else
139			{
140			cerr << program << ": Bad arguments\n";
141			return 1;
142			}
143			}
144			else if (arg == "-r")
145			{
146			if (++index < argc)
147			{
148			indexRestrictions.insert(argv[index]);
149			}
150			else
151			{
152			cerr << program << ": Bad arguments\n";
153			return 1;
154			}
155			}
156			else if (arg == "-h")
157			{
158			if (++index < argc)
159			{
160			header = argv[index];
161			}
162			else
163			{
164			cerr << program << ": Bad arguments\n";
165			return 1;
166			}
167			}
168			else if (arg == "-b")
169			{
170			if (++index < argc)
171			{
172			body = argv[index];
173			}
174			else
175			{
176			cerr << program << ": Bad arguments\n";
177			return 1;
178			}
179			}
180			else if (arg == "-f")
181			{
182			if (++index < argc)
183			{
184			footer = argv[index];
185			}
186			else
187			{
188			cerr << program << ": Bad arguments\n";
189			return 1;
190			}
191			}
192			else if (arg == "-n")
193			{
194			if (++index < argc)
195			{
196			notfound = argv[index];
197			}
198			else
199			{
200			cerr << program << ": Bad arguments\n";
201			return 1;
202			}
203			}
204			else if (arg == "-p")
205			{
206			if (++index < argc)
207			{
208			pages = argv[index];
209			}
210			else
211			{
212			cerr << program << ": Bad arguments\n";
213			return 1;
214			}
215			}
216			else if (arg == "-D")
217			{
218			debug = true;
219			}
220			else
221			{
222			indices.push_back(arg);
223			}
224			}
225
226			if (indices.size() < 1)
227			{
228			usage();
229			return 0;
230			}
231
232			if (indexMode)
233			{
234			if (indices.size() > 1)
235			{
236			cerr << program << ": Too many indices, can only build one index"
237			<< " at a time\n";
238			return 1;
239			}
240
241			if (indexDomains.size() < 1)
242			{
243			cerr << program << ": Must specify at least one domain\n";
244			return 1;
245			}
246
247			Indexer indexer(indices[0], indexDomains, indexRestrictions);
248
249			indexer.index(indexURL);
250			}
251			else
252			{
253			string line;
254			getline(cin, line);
255			query = line;
256
257			Searcher searcher(query);
258
259			searcher.search(indices);
260
261			Outputer outputer(header, body, footer, notfound,
262			pages);
263
264			outputer.output(searcher, page < 1 ? page : --page);
265			}
266
267			return 0;
268			}
269
270			string platform()
271			{
272			string platform;
273			string os;
274			string version;
275			string architecture;
276			string marketing;
277
278			#ifdef _WIN32
279			OSVERSIONINFO* computer = new OSVERSIONINFO;
280			computer->dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
281			GetVersionEx(computer);
282
283			os = computer->dwPlatformId == VER_PLATFORM_WIN32_NT ? "Windows NT" :
284			"Windows";
285			unsigned major = computer->dwMajorVersion;
286			unsigned minor = computer->dwMinorVersion;
287
288			delete computer;
289
290			SYSTEM_INFO* system = new SYSTEM_INFO;
291			GetSystemInfo(system);
292
293			switch (system->wProcessorArchitecture)
294			{
295			case PROCESSOR_ARCHITECTURE_INTEL:
296			architecture = "ix86";
297			break;
298			case PROCESSOR_ARCHITECTURE_MIPS:
299			architecture = "mips";
300			break;
301			case PROCESSOR_ARCHITECTURE_ALPHA:
302			architecture = "alpha";
303			break;
304			case PROCESSOR_ARCHITECTURE_PPC:
305			architecture = "ppc";
306			break;
307			case PROCESSOR_ARCHITECTURE_IA64:
308			architecture = "ia64";
309			break;
310			case PROCESSOR_ARCHITECTURE_IA32_ON_WIN64:
311			architecture = "ix86_on_win64";
312			break;
313			case PROCESSOR_ARCHITECTURE_AMD64:
314			architecture = "amd64";
315			break;
316			default:
317			architecture = "unknown";
318			break;
319			}
320
321			char* cversion = new char[1024];
322			sprintf(cversion, "%u.%u", major, minor);
323			version = cversion;
324
325			delete [] cversion;
326
327			if (major == 4 && minor <= 3 && os != "Windows NT")
328			{
329			marketing = " [Windows 95]";
330			}
331			else if (major == 4 && minor == 10 && os != "Windows NT")
332			{
333			marketing = " [Windows 98]";
334			}
335			else if (major == 5 && minor == 0 && os == "Windows NT")
336			{
337			marketing = " [Windows 2000]";
338			}
339			else if (major == 4 && minor == 90 && os != "Windows NT")
340			{
341			marketing = " [Windows ME]";
342			}
343			else if (major == 5 && minor == 1 && os == "Windows NT")
344			{
345			marketing = " [Windows XP]";
346			}
347			else if (major == 5 && minor == 2 && os == "Windows NT")
348			{
349			marketing = " [Windows .NET Server]";
350			}
351			#else // _WIN32
352			struct utsname* computer = new struct utsname;
353			uname(computer);
354
355			os = computer->sysname;
356			version = computer->release;
357			architecture = computer->machine;
358
359			delete computer;
360			#endif // _WIN32
361
362			platform = "(" + os + " " + version + marketing + " " + architecture + ")";
363
364			return platform;
365			}
366
367			void usage()
368			{
369			string tab(8 + program.length(), ' ');
370
371			cout << "Usage: " << program << " [index ...] [-P page] [-h header] [-b bo"
372			<< "dy]\n"
373			<< tab << "[-f footer] [-n notfound] [-p pages]\n"
374			<< tab << "[-i begin] [-d domain ...] [-r restriction ...]\n"
375			<< tab << "[-D] [-version] [-help]\n"
376			<< "Options:\n"
377			<< " index Index file to use (can only use one file for i"
378			<< "ndexing)\n"
379			<< " -P page Page of search to display (defaults to 1)\n"
380			<< " -h header Header template to use (defaults to header.htm"
381			<< "l)\n"
382			<< " -b body Body template to use (defaults to body.html)\n"
383			<< " -f footer Footer template to use (defaults to footer.htm"
384			<< "l)\n"
385			<< " -n notfound Not found template to use (defaults to notfoun"
386			<< "d.html)\n"
387			<< " -p pages Pages template to use (defaults to pages.html)"
388			<< "\n"
389			<< " -i begin URL to begin indexing (causes indexing rather "
390			<< "than search)\n"
391			<< " -d domain Domain to include in indexing\n"
392			<< " -r restriction URL to restrict from indexing\n"
393			<< " -D Display debug information\n"
394			<< " -version Display version information and exit\n"
395			<< " -license Display license information and exit\n"
396			<< " -help Display this message and exit\n";
397			}
398
399			void version()
400			{
401			cout << programName << " " << programVersion << " "<< platform() << "\n\n"
402			<< " Copyright (C) 2002, Douglas Thrift. All Rights Reserved.\n\n"
403			<< " This product includes software developed by Douglas Thrift\n"
404			<< " (http://computers.douglasthrift.net/searchengine/).\n";
405			}
406
407			void license()
408			{
409			cout << "License:\n"
410			<< " Douglas Thrift's Search Engine License\n\n"
411			<< " Copyright (C) 2002, Douglas Thrift. All Rights Reserved.\n\n"
412			<< " Redistribution and use in source and binary forms, with or with"
413			<< "out\n"
414			<< " modification, are permitted provided that the following conditi"
415			<< "ons are met:\n\n"
416			<< " 1. Redistributions of source code must retain the above copyrig"
417			<< "ht notice,\n"
418			<< " this list of conditions and the following disclaimer.\n\n"
419			<< " 2. Redistributions in binary form must reproduce the above copy"
420			<< "right notice,\n"
421			<< " this list of conditions and the following disclaimer in the "
422			<< "documentation\n"
423			<< " and/or other materials provided with the distribution.\n\n"
424			<< " 3. The end-user documentation included with the redistribution,"
425			<< " if any, must\n"
426			<< " include the following acknowledgment:\n\n"
427			<< " \"This product includes software developed by Douglas Thr"
428			<< "ift\n"
429			<< " (http://computers.douglasthrift.net/searchengine/).\"\n\n"
430			<< " Alternately, this acknowledgment may appear in the software "
431			<< "itself, if\n"
432			<< " and wherever such third-party acknowledgments normally appea"
433			<< "r.\n\n"
434			<< " 4. The names \"Douglas Thrift\" and \"Douglas Thrift\'s Search "
435			<< "Engine\" must not\n"
436			<< " be used to endorse or promote products derived from this sof"
437			<< "tware without\n"
438			<< " specific prior written permission. For written permission, p"
439			<< "lease visit\n"
440			<< " http://www.douglasthrift.net/contact.cgi for contact inform"
441			<< "ation.\n\n"
442			<< " 5. Products derived from this software may not be called \"Doug"
443			<< "las Thrift\'s\n"
444			<< " Search Engine\", nor may \"Douglas Thrift\'s Search Engine\""
445			<< " appear in their\n"
446			<< " name, without prior written permission.\n\n"
447			<< " THIS SOFTWARE IS PROVIDED \"AS IS\" AND ANY EXPRESS OR IMPLIED "
448			<< "WARRANTIES,\n"
449			<< " INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHA"
450			<< "NTABILITY AND\n"
451			<< " FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SH"
452			<< "ALL THE\n"
453			<< " COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIR"
454			<< "ECT,\n"
455			<< " INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU"
456			<< "DING, BUT NOT\n"
457			<< " LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS O"
458			<< "F USE, DATA,\n"
459			<< " OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY"
460			<< " THEORY OF\n"
461			<< " LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCL"
462			<< "UDING\n"
463			<< " NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF T"
464			<< "HIS SOFTWARE,\n"
465			<< " EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n";
466			}
467
468			void entities(string& line, char character, char* entity)
469			{
470			int begin = 0;
471
472			while (begin < line.length())
473			{
474			int spot = line.find(character, begin);
475
476			int end = spot + 1;
477
478			if (spot != string::npos)
479			{
480			line.replace(spot, 1, entity);
481			}
482			else
483			{
484			break;
485			}
486
487			begin = end;
488			}
489			}
490
491			void entities(string& line, char* entity, char character)
492			{
493			int begin = 0;
494
495			while (begin < line.length())
496			{
497			int spot = line.find(entity, begin);
498
499			int end = spot + 1;
500
501			if (spot != string::npos)
502			{
503			line.replace(spot, strlen(entity), 1, character);
504			}
505			else
506			{
507			break;
508			}
509
510			begin = end;
511			}
512			}
513
514			void normalize(string& abbynormal)
515			{
516			for (unsigned index = 0; index < abbynormal.length(); index++)
517			{
518			if (isspace(abbynormal[index]))
519			{
520			unsigned next = index + 1;
521			while (isspace(abbynormal[next]))
522			{
523			next++;
524			}
525			abbynormal.replace(index, next - index, 1, abbynormal[index]);
526			}
527			}
528
529			if (isspace(abbynormal[0])) abbynormal.erase(0, 1);
530			if (isspace(abbynormal[abbynormal.length() - 1]))
531			abbynormal.erase(abbynormal.length() - 1, 1);
532			}