-
Notifications
You must be signed in to change notification settings - Fork 0
/
scriptindex.cc
825 lines (774 loc) · 22.3 KB
/
scriptindex.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
/* scriptindex.cc
*
* Copyright 1999,2000,2001 BrightStation PLC
* Copyright 2001 Sam Liddicott
* Copyright 2001,2002 Ananova Ltd
* Copyright 2002,2003,2004,2005,2006,2007,2008,2009,2010,2011 Olly Betts
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <config.h>
#include <xapian.h>
#include <algorithm>
#include <fstream>
#include <iostream>
#include <list>
#include <map>
#include <string>
#include <vector>
#include <cstring>
#include <cstdlib>
#include "safeerrno.h"
#include <cstdio>
#include <ctime>
#include "safeunistd.h"
#include "commonhelp.h"
#include "hashterm.h"
#include "loadfile.h"
#include "myhtmlparse.h"
#include "stringutils.h"
#include "utf8truncate.h"
#include "utils.h"
#include "gnu_getopt.h"
using namespace std;
#define PROG_NAME "scriptindex"
#define PROG_DESC "index arbitrary data as described by an index script"
static bool verbose;
static int addcount;
static int repcount;
static int delcount;
inline static bool
p_space(unsigned int c)
{
return isspace(static_cast<unsigned char>(c));
}
inline static bool
p_notspace(unsigned int c)
{
return !isspace(static_cast<unsigned char>(c));
}
inline static bool
p_notalpha(unsigned int c)
{
return !isalpha(static_cast<unsigned char>(c));
}
// Characters allowed as second or subsequent characters in a fieldname
inline static bool
p_notfieldnamechar(unsigned int c)
{
return !isalnum(static_cast<unsigned char>(c)) && c != '_';
}
inline bool
prefix_needs_colon(const string & prefix, unsigned ch)
{
if (!C_isupper(ch)) return false;
string::size_type len = prefix.length();
return (len > 1 && prefix[len - 1] != ':');
}
const char * action_names[] = {
"bad", "new",
"boolean", "date", "field", "hash", "index", "indexnopos", "load", "lower",
"spell", "truncate", "unhtml", "unique", "value", "valuenumeric", "weight"
};
// For debugging:
#define DUMP_ACTION(A) cout << action_names[(A).get_action()] << "(" << (A).get_string_arg() << "," << (A).get_num_arg() << ")" << endl
class Action {
public:
typedef enum {
BAD, NEW,
BOOLEAN, DATE, FIELD, HASH, INDEX, INDEXNOPOS, LOAD, LOWER,
SPELL, TRUNCATE, UNHTML, UNIQUE, VALUE, VALUENUMERIC, WEIGHT
} type;
private:
type action;
int num_arg;
string string_arg;
public:
Action(type action_) : action(action_), num_arg(0) { }
Action(type action_, string arg) : action(action_), string_arg(arg) {
num_arg = atoi(string_arg.c_str());
}
Action(type action_, string arg, int num)
: action(action_), num_arg(num), string_arg(arg) { }
type get_action() const { return action; }
int get_num_arg() const { return num_arg; }
const string & get_string_arg() const { return string_arg; }
};
static void
report_useless_action(const string &file, size_t line, size_t pos,
const string &action)
{
cout << file << ':' << line;
if (pos != string::npos) cout << ':' << pos;
cout << ": Warning: Index action '" << action << "' has no effect" << endl;
static bool given_left_to_right_warning = false;
if (!given_left_to_right_warning) {
given_left_to_right_warning = true;
cout << file << ':' << line
<< ": Warning: Note that actions are executed from left to right"
<< endl;
}
}
static map<string, vector<Action> > index_spec;
static void
parse_index_script(const string &filename)
{
ifstream script(filename.c_str());
if (!script.is_open()) {
cout << filename << ": " << strerror(errno) << endl;
exit(1);
}
string line;
size_t line_no = 0;
while (getline(script, line)) {
++line_no;
vector<string> fields;
vector<Action> actions;
string::const_iterator i, j;
const string &s = line;
i = find_if(s.begin(), s.end(), p_notspace);
if (i == s.end() || *i == '#') continue;
while (true) {
if (!isalnum(static_cast<unsigned char>(*i))) {
cout << filename << ':' << line_no
<< ": field name must start with alphanumeric" << endl;
exit(1);
}
j = find_if(i, s.end(), p_notfieldnamechar);
fields.push_back(string(i, j));
i = find_if(j, s.end(), p_notspace);
if (i == s.end()) break;
if (*i == ':') {
++i;
i = find_if(i, s.end(), p_notspace);
break;
}
if (i == j) {
cout << filename << ':' << line_no
<< ": bad character '" << *j << "' in fieldname" << endl;
exit(1);
}
}
Xapian::termcount weight = 1;
size_t useless_weight_pos = string::npos;
map<string, Action::type> boolmap;
j = i;
while (j != s.end()) {
i = find_if(j, s.end(), p_notalpha);
string action = s.substr(j - s.begin(), i - j);
Action::type code = Action::BAD;
enum {NO, OPT, YES} arg = NO;
bool takes_integer_argument = false;
if (!action.empty()) {
switch (action[0]) {
case 'b':
if (action == "boolean") {
code = Action::BOOLEAN;
arg = OPT;
}
break;
case 'd':
if (action == "date") {
code = Action::DATE;
arg = YES;
}
break;
case 'f':
if (action == "field") {
code = Action::FIELD;
arg = OPT;
}
break;
case 'h':
if (action == "hash") {
code = Action::HASH;
arg = OPT;
}
break;
case 'i':
if (action == "index") {
code = Action::INDEX;
arg = OPT;
} else if (action == "indexnopos") {
code = Action::INDEXNOPOS;
arg = OPT;
}
break;
case 'l':
if (action == "lower") {
code = Action::LOWER;
} else if (action == "load") {
code = Action::LOAD;
}
break;
case 's':
if (action == "spell") {
code = Action::SPELL;
}
break;
case 't':
if (action == "truncate") {
code = Action::TRUNCATE;
arg = YES;
takes_integer_argument = true;
}
break;
case 'u':
if (action == "unhtml") {
code = Action::UNHTML;
} else if (action == "unique") {
code = Action::UNIQUE;
arg = YES;
}
break;
case 'v':
if (action == "value") {
code = Action::VALUE;
arg = YES;
takes_integer_argument = true;
} else if (action == "valuenumeric") {
code = Action::VALUENUMERIC;
arg = YES;
takes_integer_argument = true;
}
break;
case 'w':
if (action == "weight") {
code = Action::WEIGHT;
arg = YES;
takes_integer_argument = true;
}
break;
}
}
if (code == Action::BAD) {
cout << filename << ':' << line_no
<< ": Unknown index action '" << action << "'" << endl;
exit(1);
}
i = find_if(i, s.end(), p_notspace);
if (i != s.end() && *i == '=') {
if (arg == NO) {
cout << filename << ':' << line_no
<< ": Index action '" << action
<< "' doesn't take an argument" << endl;
exit(1);
}
++i;
j = find_if(i, s.end(), p_notspace);
i = find_if(j, s.end(), p_space);
string val(j, i);
if (takes_integer_argument) {
if (val.find('.') != string::npos) {
cout << filename << ':' << line_no
<< ": Warning: Index action '" << action
<< "' takes an integer argument" << endl;
}
}
switch (code) {
case Action::INDEX:
case Action::INDEXNOPOS:
actions.push_back(Action(code, val, weight));
useless_weight_pos = string::npos;
break;
case Action::WEIGHT:
// We don't push an Action for WEIGHT - instead we
// store it ready to use in the INDEX and INDEXNOPOS
// Actions.
weight = atoi(val.c_str());
if (useless_weight_pos != string::npos) {
report_useless_action(filename, line_no,
useless_weight_pos, action);
}
useless_weight_pos = j - s.begin();
break;
case Action::TRUNCATE:
if (!actions.empty() &&
actions.back().get_action() == Action::LOAD) {
/* Turn "load truncate=n" into "load" with
* num_arg n, so that we don't needlessly
* allocate memory and read data we're just
* going to ignore.
*/
actions.pop_back();
code = Action::LOAD;
}
actions.push_back(Action(code, val));
break;
case Action::UNIQUE:
if (boolmap.find(val) == boolmap.end())
boolmap[val] = Action::UNIQUE;
actions.push_back(Action(code, val));
break;
case Action::BOOLEAN:
boolmap[val] = Action::BOOLEAN;
/* FALLTHRU */
default:
actions.push_back(Action(code, val));
}
i = find_if(i, s.end(), p_notspace);
} else {
if (arg == YES) {
cout << filename << ':' << line_no
<< ": Index action '" << action
<< "' must have an argument" << endl;
exit(1);
}
if (code == Action::INDEX || code == Action::INDEXNOPOS) {
useless_weight_pos = string::npos;
actions.push_back(Action(code, "", weight));
} else {
actions.push_back(Action(code));
}
}
j = i;
}
if (useless_weight_pos != string::npos) {
report_useless_action(filename, line_no, useless_weight_pos,
"weight");
}
while (!actions.empty()) {
bool done = true;
Action::type action = actions.back().get_action();
switch (action) {
case Action::HASH:
case Action::LOWER:
case Action::SPELL:
case Action::TRUNCATE:
case Action::UNHTML:
done = false;
report_useless_action(filename, line_no, string::npos,
action_names[action]);
actions.pop_back();
break;
default:
break;
}
if (done) break;
}
map<string, Action::type>::const_iterator boolpfx;
for (boolpfx = boolmap.begin(); boolpfx != boolmap.end(); ++boolpfx) {
if (boolpfx->second == Action::UNIQUE) {
cout << filename << ':' << line_no
<< ": Warning: Index action 'unique=" << boolpfx->first
<< "' without 'boolean=" << boolpfx->first << "'" << endl;
static bool given_doesnt_imply_boolean_warning = false;
if (!given_doesnt_imply_boolean_warning) {
given_doesnt_imply_boolean_warning = true;
cout << filename << ':' << line_no
<< ": Warning: Note 'unique' doesn't implicitly add "
"a boolean term" << endl;
}
}
}
vector<string>::const_iterator field;
for (field = fields.begin(); field != fields.end(); ++field) {
vector<Action> &v = index_spec[*field];
if (v.empty()) {
v = actions;
} else {
v.push_back(Action(Action::NEW));
v.insert(v.end(), actions.begin(), actions.end());
}
}
}
if (index_spec.empty()) {
cout << filename << ": No rules found in index script" << endl;
exit(1);
}
}
static bool
index_file(const char *fname, istream &stream,
Xapian::WritableDatabase &database, Xapian::TermGenerator &indexer)
{
string line;
size_t line_no = 0;
while (!stream.eof() && getline(stream, line)) {
++line_no;
Xapian::Document doc;
indexer.set_document(doc);
Xapian::docid docid = 0;
map<string, list<string> > fields;
bool seen_content = false;
while (!line.empty()) {
// Cope with files from MS Windows (\r\n end of lines).
// Trim multiple \r characters, since that seems the best way
// to handle that case.
string::size_type last = line.find_last_not_of('\r');
if (last == string::npos) break;
line.resize(last + 1);
string::size_type eq = line.find('=');
if (eq == string::npos && !line.empty()) {
cout << fname << ':' << line_no << ": expected = somewhere "
"in this line" << endl;
// FIXME: die or what?
}
string field = line.substr(0, eq);
string value = line.substr(eq + 1);
while (getline(stream, line)) {
++line_no;
if (line.empty() || line[0] != '=') break;
// Cope with files from MS Windows (\r\n end of lines).
// Trim multiple \r characters, since that seems the best way
// to handle that case.
last = line.find_last_not_of('\r');
// line[0] == '=', so last != string::npos.
// Replace the '=' with a '\n' so we don't have to use substr.
line[0] = '\n';
line.resize(last + 1);
value += line;
}
// Default to not indexing spellings.
indexer.set_flags(Xapian::TermGenerator::flags(0));
const vector<Action> &v = index_spec[field];
string old_value = value;
vector<Action>::const_iterator i;
bool this_field_is_content = true;
for (i = v.begin(); i != v.end(); ++i) {
switch (i->get_action()) {
case Action::BAD:
abort();
case Action::NEW:
value = old_value;
// We're processing the same field again - give it a
// reprieve.
this_field_is_content = true;
break;
case Action::FIELD:
if (!value.empty()) {
string f = i->get_string_arg();
if (f.empty()) f = field;
// replace newlines with spaces
string s = value;
string::size_type j = 0;
while ((j = s.find('\n', j)) != string::npos)
s[j] = ' ';
fields[f].push_back(s);
}
break;
case Action::INDEX:
indexer.index_text(value,
i->get_num_arg(),
i->get_string_arg());
break;
case Action::INDEXNOPOS:
// No positional information so phrase searching
// won't work. However, the database will use much
// less diskspace.
indexer.index_text_without_positions(value,
i->get_num_arg(),
i->get_string_arg());
break;
case Action::BOOLEAN: {
// Do nothing if there's no text.
if (value.empty()) break;
string term = i->get_string_arg();
if (prefix_needs_colon(term, value[0])) term += ':';
term += value;
doc.add_boolean_term(term);
break;
}
case Action::HASH: {
unsigned int max_length = i->get_num_arg();
if (max_length == 0)
max_length = MAX_SAFE_TERM_LENGTH - 1;
if (value.length() > max_length)
value = hash_long_term(value, max_length);
break;
}
case Action::LOWER:
value = Xapian::Unicode::tolower(value);
break;
case Action::LOAD: {
bool truncated = false;
// FIXME: Use NOATIME if we own the file or are root.
if (!load_file(value, i->get_num_arg(), NOCACHE,
value, truncated)) {
cerr << "Couldn't load file '" << value << "': "
<< strerror(errno) << endl;
value.resize(0);
}
if (!truncated) break;
/* FALLTHRU (conditionally) */
}
case Action::TRUNCATE:
utf8_truncate(value, i->get_num_arg());
break;
case Action::SPELL:
indexer.set_flags(indexer.FLAG_SPELLING);
break;
case Action::UNHTML: {
MyHtmlParser p;
try {
// Default HTML character set is latin 1, though
// not specifying one is deprecated these days.
p.parse_html(value, "iso-8859-1", false);
} catch (const string & newcharset) {
p.reset();
p.parse_html(value, newcharset, true);
}
if (p.indexing_allowed)
value = p.dump;
else
value = "";
break;
}
case Action::UNIQUE: {
// If there's no text, just issue a warning.
if (value.empty()) {
cout << fname << ':' << line_no
<< ": Ignoring UNIQUE action on empty text"
<< endl;
break;
}
// Ensure that the value of this field is unique.
// If a record already exists with the same value,
// it will be replaced with the new record.
// Unique fields aren't considered content - if
// there are no other fields in the document, the
// document is to be deleted.
this_field_is_content = false;
// Argument is the prefix to add to the field value
// to get the unique term.
string t = i->get_string_arg();
if (prefix_needs_colon(t, value[0])) t += ':';
t += value;
again:
try {
Xapian::PostingIterator p = database.postlist_begin(t);
if (p != database.postlist_end(t)) {
docid = *p;
}
} catch (const Xapian::Error &e) {
// Hmm, what happened?
cout << "Caught exception in UNIQUE!" << endl;
cout << "E: " << e.get_description() << endl;
database.commit();
goto again;
}
break;
}
case Action::VALUE:
if (!value.empty())
doc.add_value(i->get_num_arg(), value);
break;
case Action::VALUENUMERIC: {
if (value.empty()) break;
char * end;
double dbl = strtod(value.c_str(), &end);
if (*end) {
cout << fname << ':' << line_no << ": Warning: "
"Trailing characters in VALUENUMERIC: '"
<< value << "'" << endl;
}
doc.add_value(i->get_num_arg(),
Xapian::sortable_serialise(dbl));
break;
}
case Action::DATE: {
const string & type = i->get_string_arg();
string yyyymmdd;
if (type == "unix") {
time_t t = atoi(value.c_str());
struct tm *tm = localtime(&t);
int y = tm->tm_year + 1900;
int m = tm->tm_mon + 1;
yyyymmdd = date_to_string(y, m, tm->tm_mday);
} else if (type == "yyyymmdd") {
if (value.length() == 8) yyyymmdd = value;
}
if (yyyymmdd.empty()) break;
// Date (YYYYMMDD)
doc.add_boolean_term("D" + yyyymmdd);
yyyymmdd.resize(6);
// Month (YYYYMM)
doc.add_boolean_term("M" + yyyymmdd);
yyyymmdd.resize(4);
// Year (YYYY)
doc.add_boolean_term("Y" + yyyymmdd);
break;
}
default:
/* Empty default case to avoid "unhandled enum value"
* warnings. */
break;
}
}
if (this_field_is_content) seen_content = true;
if (stream.eof()) break;
}
// If we haven't seen any fields (other than unique identifiers)
// the document is to be deleted.
if (!seen_content) {
if (docid) {
database.delete_document(docid);
if (verbose) cout << "Del: " << docid << endl;
delcount ++;
}
} else {
string data;
map<string, list<string> >::const_iterator i;
for (i = fields.begin(); i != fields.end(); ++i) {
list<string>::const_iterator j;
for (j = i->second.begin(); j != i->second.end(); j++) {
data += i->first;
data += '=';
data += *j;
data += '\n';
}
}
// Put the data in the document
doc.set_data(data);
// Add the document to the database
if (docid) {
try {
database.replace_document(docid, doc);
if (verbose) cout << "Replace: " << docid << endl;
repcount ++;
} catch (const Xapian::Error &e) {
cout << "E: " << e.get_description() << endl;
// Possibly the document was deleted by another
// process in the meantime...?
docid = database.add_document(doc);
cout << "Replace failed, adding as new: " << docid << endl;
}
} else {
docid = database.add_document(doc);
if (verbose) cout << "Add: " << docid << endl;
addcount ++;
}
}
}
// Commit after each file to make sure all changes from that file make it
// in.
if (verbose) cout << "Committing: " << endl;
database.commit();
return true;
}
int
main(int argc, char **argv)
try {
// If the database already exists, default to updating not overwriting.
int database_mode = Xapian::DB_CREATE_OR_OPEN;
verbose = false;
Xapian::Stem stemmer("english");
static const struct option longopts[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ "stemmer", required_argument, NULL, 's' },
{ "overwrite", no_argument, NULL, 'o' },
{ "verbose", no_argument, NULL, 'v' },
{ 0, 0, NULL, 0 }
};
bool more = true, show_help = false;
while (more) {
switch (gnu_getopt_long(argc, argv, "vs:hV", longopts, NULL)) {
case EOF:
more = false;
break;
default:
case 'h': // --help
show_help = true;
more = false;
break;
case 'V': // --version
print_package_info(PROG_NAME);
return 0;
case 'o': // --overwrite
database_mode = Xapian::DB_CREATE_OR_OVERWRITE;
break;
case 'v':
verbose = true;
break;
case 's':
try {
stemmer = Xapian::Stem(optarg);
} catch (const Xapian::InvalidArgumentError &) {
cerr << "Unknown stemming language '" << optarg << "'.\n";
cerr << "Available language names are: "
<< Xapian::Stem::get_available_languages() << endl;
return 1;
}
break;
}
}
argv += optind;
argc -= optind;
if (show_help || argc < 2) {
cout << PROG_NAME" - "PROG_DESC"\n"
"Usage: "PROG_NAME" [OPTIONS] DATABASE INDEXER_SCRIPT [INPUT_FILE]...\n"
"\n"
"Creates or updates a Xapian database with the data from the input files listed\n"
"on the command line. If no files are specified, data is read from stdin.\n"
"\n"
"See http://xapian.org/docs/omega/scriptindex.html for documentation of the\n"
"format for INDEXER_SCRIPT.\n"
"\n"
"Options:\n"
" -v, --verbose display additional messages to aid debugging\n"
" --overwrite create the database anew (the default is to update if\n"
" the database already exists)\n";
print_stemmer_help("");
print_help_and_version_help("");
exit(show_help ? 0 : 1);
}
parse_index_script(argv[1]);
// Open the database.
Xapian::WritableDatabase database;
while (true) {
try {
database = Xapian::WritableDatabase(argv[0], database_mode);
break;
} catch (const Xapian::DatabaseLockError &) {
// Sleep and retry if we get a Xapian::DatabaseLockError - this
// just means that another process is updating the database.
cout << "Database locked ... retrying" << endl;
sleep(1);
}
}
Xapian::TermGenerator indexer;
indexer.set_stemmer(stemmer);
// Set the database for spellings to be added to by the "spell" action.
indexer.set_database(database);
addcount = 0;
repcount = 0;
delcount = 0;
if (argc == 2) {
// Read from stdin.
index_file("<stdin>", cin, database, indexer);
} else {
// Read file(s) listed on the command line.
for (int i = 2; i < argc; ++i) {
ifstream stream(argv[i]);
if (stream) {
index_file(argv[i], stream, database, indexer);
} else {
cout << "Can't open file " << argv[i] << endl;
}
}
}
cout << "records (added, replaced, deleted) = (" << addcount << ", "
<< repcount << ", " << delcount << ")" << endl;
} catch (const Xapian::Error &error) {
cout << "Exception: " << error.get_description() << endl;
exit(1);
} catch (const std::bad_alloc &) {
cout << "Exception: std::bad_alloc" << endl;
exit(1);
} catch (...) {
cout << "Unknown Exception" << endl;
exit(1);
}