-
Notifications
You must be signed in to change notification settings - Fork 23
/
aff_data.cxx
1041 lines (969 loc) · 27.8 KB
/
aff_data.cxx
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
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* Copyright 2016-2023 Dimitrij Mijoski
*
* This file is part of Nuspell.
*
* Nuspell is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Nuspell 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Nuspell. If not, see <http://www.gnu.org/licenses/>.
*/
#include "aff_data.hxx"
#include "utils.hxx"
#include <cassert>
#include <charconv>
#include <locale>
#include <sstream>
#include <unordered_map>
using namespace std;
/**
* @brief Library main namespace
*/
namespace nuspell {
/**
* @brief Library main namespace with version number attached
*
* This inline namespace is used for ABI versioning. It is the same as the major
* verison. Look up on the Internet to see what is it for (ABI versioning
* mostly). Client code should never mention this inline namespace.
*/
NUSPELL_BEGIN_INLINE_NAMESPACE
auto Encoding::normalize_name() -> void
{
to_upper_ascii(name);
if (name == "UTF8")
name = "UTF-8";
else if (name.compare(0, 10, "MICROSOFT-") == 0)
name.erase(0, 10);
}
namespace {
void reset_failbit_istream(std::istream& in)
{
in.clear(in.rdstate() & ~in.failbit);
}
enum class Parsing_Error_Code {
NO_FLAGS_AFTER_SLASH_WARNING = -16,
NONUTF8_FLAGS_ABOVE_127_WARNING,
ARRAY_COMMAND_EXTRA_ENTRIES_WARNING,
MULTIPLE_ENTRIES_WARNING,
NO_ERROR = 0,
ISTREAM_READING_ERROR,
INVALID_ENCODING_IDENTIFIER,
ENCODING_CONVERSION_ERROR,
INVALID_FLAG_TYPE,
INVALID_LANG_IDENTIFIER,
MISSING_FLAGS,
UNPAIRED_LONG_FLAG,
INVALID_NUMERIC_FLAG,
// FLAGS_ARE_UTF8_BUT_FILE_NOT,
INVALID_UTF8,
FLAG_ABOVE_65535,
INVALID_NUMERIC_ALIAS,
AFX_CROSS_CHAR_INVALID,
AFX_CONDITION_INVALID_FORMAT,
COMPOUND_RULE_INVALID_FORMAT,
ARRAY_COMMAND_NO_COUNT
};
auto decode_flags(string_view s, Flag_Type t, const Encoding& enc,
u16string& out) -> Parsing_Error_Code
{
using Err = Parsing_Error_Code;
using Ft = Flag_Type;
auto warn = Err();
out.clear();
if (s.empty())
return Err::MISSING_FLAGS;
switch (t) {
case Ft::SINGLE_CHAR:
if (enc.is_utf8() && !is_all_ascii(s)) {
warn = Err::NONUTF8_FLAGS_ABOVE_127_WARNING;
// This warning will be triggered in Hungarian.
// Version 1 passed this, it just read a single byte
// even if the stream utf-8. Hungarian dictionary
// exploited this bug/feature, resulting it's file to be
// mixed utf-8 and latin2. In v2 this will eventually
// work, with a warning.
}
latin1_to_ucs2(s, out);
break;
case Ft::DOUBLE_CHAR: {
if (enc.is_utf8() && !is_all_ascii(s))
warn = Err::NONUTF8_FLAGS_ABOVE_127_WARNING;
if (s.size() % 2 == 1)
return Err::UNPAIRED_LONG_FLAG;
auto i = s.begin();
auto e = s.end();
for (; i != e; i += 2) {
unsigned char c1 = *i;
unsigned char c2 = *(i + 1);
out.push_back((c1 << 8) | c2);
}
break;
}
case Ft::NUMBER:
for (auto p = begin_ptr(s);;) {
uint16_t flag;
auto fc = from_chars(p, end_ptr(s), flag);
if (fc.ec == errc::invalid_argument)
return Err::INVALID_NUMERIC_FLAG;
if (fc.ec == errc::result_out_of_range)
return Err::FLAG_ABOVE_65535;
out.push_back(flag);
if (fc.ptr == end_ptr(s) || *fc.ptr != ',')
break;
p = fc.ptr + 1;
}
break;
case Ft::UTF8: {
// if (!enc.is_utf8())
// return Err::FLAGS_ARE_UTF8_BUT_FILE_NOT;
auto ok = utf8_to_16(s, out);
if (!ok) {
out.clear();
return Err::INVALID_UTF8;
}
if (!is_all_bmp(out)) {
out.clear();
return Err::FLAG_ABOVE_65535;
}
break;
}
}
return warn;
}
auto decode_flags_possible_alias(string_view s, Flag_Type t,
const Encoding& enc,
const vector<Flag_Set>& flag_aliases,
u16string& out) -> Parsing_Error_Code
{
if (flag_aliases.empty())
return decode_flags(s, t, enc, out);
out.clear();
size_t i;
auto fc = from_chars(begin_ptr(s), end_ptr(s), i);
if (fc.ec == errc::invalid_argument ||
fc.ec == errc::result_out_of_range)
return Parsing_Error_Code::INVALID_NUMERIC_ALIAS;
if (0 < i && i <= flag_aliases.size()) {
out = flag_aliases[i - 1];
return {};
}
return Parsing_Error_Code::INVALID_NUMERIC_ALIAS;
}
auto get_parsing_error_message(Parsing_Error_Code err)
{
using Err = Parsing_Error_Code;
switch (err) {
case Err::NO_FLAGS_AFTER_SLASH_WARNING:
return "Nuspell warning: no flags after slash.";
case Err::NONUTF8_FLAGS_ABOVE_127_WARNING:
return "Nuspell warning: bytes above 127 in flags in UTF-8 "
"file are treated as lone bytes for backward "
"compatibility. That means if in the flags you have "
"ONE character above ASCII, it may be interpreted as "
"2, 3, or 4 flags. Please update dictionary and affix "
"files to use FLAG UTF-8 and make the file valid "
"UTF-8 if it is not already.";
case Err::ARRAY_COMMAND_EXTRA_ENTRIES_WARNING:
return "Nuspell warning: extra entries of array command.";
case Err::MULTIPLE_ENTRIES_WARNING:
return "Nuspell warning: multiple entries the same command.";
case Err::NO_ERROR:
return "";
case Err::ISTREAM_READING_ERROR:
return "Nuspell error: problem reading number or string from "
"istream.";
case Err::INVALID_ENCODING_IDENTIFIER:
return "Nuspell error: Invalid identifier of encoding.";
case Err::ENCODING_CONVERSION_ERROR:
return "Nuspell error: encoding conversion error.";
case Err::INVALID_FLAG_TYPE:
return "Nuspell error: invalid identifier for the type of the "
"flags.";
case Err::INVALID_LANG_IDENTIFIER:
return "Nuspell error: invalid language code.";
case Err::MISSING_FLAGS:
return "Nuspell error: missing flags.";
case Err::UNPAIRED_LONG_FLAG:
return "Nuspell error: the number of chars in string of long "
"flags is odd, should be even.";
case Err::INVALID_NUMERIC_FLAG:
return "Nuspell error: invalid numerical flag.";
// case Err::FLAGS_ARE_UTF8_BUT_FILE_NOT:
// return "Nuspell error: flags are UTF-8 but file is not\n";
case Err::INVALID_UTF8:
return "Nuspell error: Invalid UTF-8 in flags";
case Err::FLAG_ABOVE_65535:
return "Nuspell error: Flag above 65535 in line";
case Err::INVALID_NUMERIC_ALIAS:
return "Nuspell error: Flag alias is invalid.";
case Err::AFX_CROSS_CHAR_INVALID:
return "Nuspell error: Invalid cross char in affix entry. It "
"must be Y or N.";
case Err::AFX_CONDITION_INVALID_FORMAT:
return "Nuspell error: Affix condition is invalid.";
case Err::COMPOUND_RULE_INVALID_FORMAT:
return "Nuspell error: Compound rule is in invalid format.";
case Err::ARRAY_COMMAND_NO_COUNT:
return "Nuspell error: The first line of array command (series "
"of similar commands) has no count. Ignoring all of "
"them.";
}
return "Unknown error";
}
auto decode_compound_rule(string_view s, Flag_Type t, const Encoding& enc,
u16string& out) -> Parsing_Error_Code
{
using Ft = Flag_Type;
using Err = Parsing_Error_Code;
switch (t) {
case Ft::SINGLE_CHAR:
case Ft::UTF8:
return decode_flags(s, t, enc, out);
break;
case Ft::DOUBLE_CHAR:
out.clear();
if (s.empty())
return Err::MISSING_FLAGS;
for (size_t i = 0;;) {
if (s.size() - i < 4)
return Err::COMPOUND_RULE_INVALID_FORMAT;
if (s[i] != '(' || s[i + 3] != ')')
return Err::COMPOUND_RULE_INVALID_FORMAT;
auto c1 = s[i + 1];
auto c2 = s[i + 2];
out.push_back((c1 << 8) | c2);
i += 4;
if (i == s.size())
break;
if (s[i] == '?' || s[i] == '*') {
out.push_back(s[i]);
i += 1;
}
}
break;
case Ft::NUMBER:
out.clear();
if (s.empty())
return Err::MISSING_FLAGS;
for (auto p = begin_ptr(s); p != end_ptr(s);) {
if (*p != '(')
return Err::COMPOUND_RULE_INVALID_FORMAT;
++p;
uint16_t flag;
auto fc = from_chars(p, end_ptr(s), flag);
if (fc.ec == errc::invalid_argument)
return Err::INVALID_NUMERIC_FLAG;
if (fc.ec == errc::result_out_of_range)
return Err::FLAG_ABOVE_65535;
p = fc.ptr;
if (p == end_ptr(s) || *p != ')')
return Err::COMPOUND_RULE_INVALID_FORMAT;
out.push_back(flag);
++p;
if (p == end_ptr(s))
break;
if (*p == '?' || *p == '*') {
out.push_back(*p);
++p;
}
}
break;
}
return {};
}
auto strip_utf8_bom(std::istream& in) -> void
{
if (!in.good())
return;
auto bom = string(3, '\0');
in.read(bom.data(), 3);
if (in && bom == "\xEF\xBB\xBF")
return;
if (in.bad())
return;
reset_failbit_istream(in);
for (auto i = size_t(in.gcount()); i-- != 0;)
in.putback(bom[i]);
}
struct Compound_Rule_Ref_Wrapper {
std::u16string& rule;
};
auto wrap_compound_rule(std::u16string& r) -> Compound_Rule_Ref_Wrapper
{
return {r};
}
class Aff_Line_Parser {
std::string str_buf;
std::u16string flag_buffer;
const Aff_Data* aff_data = nullptr;
Encoding_Converter cvt;
using Err = Parsing_Error_Code;
public:
Parsing_Error_Code err = {};
Aff_Line_Parser() = default;
Aff_Line_Parser(Aff_Data& a)
: aff_data(&a), cvt(a.encoding.value_or_default())
{
}
auto& parse(istream& in, Encoding& enc)
{
in >> str_buf;
if (in.fail()) {
err = Err::ISTREAM_READING_ERROR;
return in;
}
enc = str_buf;
cvt = Encoding_Converter(enc.value_or_default());
if (!cvt.valid()) {
err = Err::INVALID_ENCODING_IDENTIFIER;
in.setstate(in.failbit);
}
return in;
}
auto& parse(istream& in, std::string& str)
{
in >> str_buf;
if (in.fail()) { // str_buf is unmodified on fail
err = Err::ISTREAM_READING_ERROR;
return in;
}
auto ok = cvt.to_utf8(str_buf, str);
if (!ok) {
err = Err::INVALID_ENCODING_IDENTIFIER;
in.setstate(in.failbit);
}
return in;
}
auto& parse(istream& in, Flag_Type& flag_type)
{
using Ft = Flag_Type;
flag_type = {};
in >> str_buf;
if (in.fail()) {
err = Err::ISTREAM_READING_ERROR;
return in;
}
to_upper_ascii(str_buf);
if (str_buf == "LONG")
flag_type = Ft::DOUBLE_CHAR;
else if (str_buf == "NUM")
flag_type = Ft::NUMBER;
else if (str_buf == "UTF-8")
flag_type = Ft::UTF8;
else {
err = Err::INVALID_FLAG_TYPE;
in.setstate(in.failbit);
}
return in;
}
auto& parse(istream& in, icu::Locale& loc)
{
in >> str_buf;
if (in.fail()) {
err = Err::ISTREAM_READING_ERROR;
return in;
}
loc = icu::Locale(str_buf.c_str());
if (loc.isBogus()) {
err = Err::INVALID_LANG_IDENTIFIER;
in.setstate(in.failbit);
}
return in;
}
private:
auto& parse_flags(istream& in, std::u16string& flags)
{
in >> str_buf;
if (in.fail()) {
err = Err::ISTREAM_READING_ERROR;
return in;
}
err = decode_flags(str_buf, aff_data->flag_type,
aff_data->encoding, flags);
if (static_cast<int>(err) > 0)
in.setstate(in.failbit);
return in;
}
public:
auto& parse(istream& in, char16_t& flag)
{
flag = 0;
parse_flags(in, flag_buffer);
if (in)
flag = flag_buffer[0];
return in;
}
auto& parse(istream& in, Flag_Set& flags)
{
parse_flags(in, flag_buffer);
if (in)
flags = flag_buffer;
return in;
}
auto& parse_word_slash_flags(istream& in, string& word, Flag_Set& flags)
{
in >> str_buf;
if (in.fail()) {
err = Err::ISTREAM_READING_ERROR;
return in;
}
// err = {};
auto slash_pos = str_buf.find('/');
if (slash_pos != str_buf.npos) {
auto flag_str =
str_buf.substr(slash_pos + 1); // temporary
str_buf.erase(slash_pos);
err = decode_flags_possible_alias(
flag_str, aff_data->flag_type, aff_data->encoding,
aff_data->flag_aliases, flag_buffer);
if (err == Err::MISSING_FLAGS)
err = Err::NO_FLAGS_AFTER_SLASH_WARNING;
flags = flag_buffer;
}
if (static_cast<int>(err) > 0) {
in.setstate(in.failbit);
return in;
}
auto ok = cvt.to_utf8(str_buf, word);
if (!ok) {
err = Err::ENCODING_CONVERSION_ERROR;
in.setstate(in.failbit);
}
return in;
}
auto parse_word_slash_single_flag(istream& in, string& word,
char16_t& flag) -> istream&
{
in >> str_buf;
if (in.fail()) {
err = Err::ISTREAM_READING_ERROR;
return in;
}
// err = {};
auto slash_pos = str_buf.find('/');
if (slash_pos != str_buf.npos) {
auto flag_str =
str_buf.substr(slash_pos + 1); // temporary
str_buf.erase(slash_pos);
err = decode_flags(flag_str, aff_data->flag_type,
aff_data->encoding, flag_buffer);
if (!flag_buffer.empty())
flag = flag_buffer[0];
}
if (static_cast<int>(err) > 0) {
in.setstate(in.failbit);
return in;
}
auto ok = cvt.to_utf8(str_buf, word);
if (!ok) {
err = Err::ENCODING_CONVERSION_ERROR;
in.setstate(in.failbit);
}
return in;
}
auto& parse_compound_rule(istream& in, u16string& out)
{
in >> str_buf;
if (in.fail()) {
err = Err::ISTREAM_READING_ERROR;
return in;
}
err = decode_compound_rule(str_buf, aff_data->flag_type,
aff_data->encoding, out);
if (static_cast<int>(err) > 0)
in.setstate(in.failbit);
return in;
}
auto& parse(istream& in, pair<string, string>& out)
{
parse(in, out.first);
parse(in, out.second);
return in;
}
auto& parse(istream& in, Condition& x)
{
auto str = string();
parse(in, str);
if (in.fail())
return in;
try {
x = std::move(str);
}
catch (const Condition_Exception& ex) {
err = Parsing_Error_Code::AFX_CONDITION_INVALID_FORMAT;
in.setstate(in.failbit);
}
return in;
}
auto& parse(istream& in, Compound_Rule_Ref_Wrapper x)
{
return parse_compound_rule(in, x.rule);
}
auto& parse(istream& in, string& word, Flag_Set& flags)
{
return parse_word_slash_flags(in, word, flags);
}
auto& parse(istream& in, string& word, char16_t& flag)
{
return parse_word_slash_single_flag(in, word, flag);
}
auto& parse(istream& in, Compound_Pattern& p)
{
auto first_word_end = string();
auto second_word_begin = string();
p.match_first_only_unaffixed_or_zero_affixed = false;
parse(in, first_word_end, p.first_word_flag);
parse(in, second_word_begin, p.second_word_flag);
if (in.fail())
return in;
if (first_word_end == "0") {
first_word_end.clear();
p.match_first_only_unaffixed_or_zero_affixed = true;
}
p.begin_end_chars = {first_word_end, second_word_begin};
parse(in, p.replacement); // optional
if (in.fail() && in.eof() && !in.bad()) {
err = {};
reset_failbit_istream(in);
p.replacement.clear();
}
return in;
}
};
template <class T, class Func = identity>
auto parse_vector_of_T(istream& in, Aff_Line_Parser& p, const string& command,
unordered_map<string, size_t>& counts, vector<T>& vec,
Func modifier_wrapper = Func()) -> void
{
auto dat = counts.find(command);
if (dat == counts.end()) {
// first line
auto& cnt = counts[command]; // cnt == 0
size_t a;
in >> a;
if (in)
cnt = a;
else {
// cnt aka counts[command] remains 0.
p.err = Parsing_Error_Code::ARRAY_COMMAND_NO_COUNT;
in.setstate(in.failbit);
}
}
else if (dat->second != 0) {
dat->second--;
auto& elem = vec.emplace_back();
p.parse(in, modifier_wrapper(elem));
}
else {
p.err = Parsing_Error_Code::ARRAY_COMMAND_EXTRA_ENTRIES_WARNING;
}
}
template <class AffixT>
auto parse_affix(istream& in, Aff_Line_Parser& p, string& command,
vector<AffixT>& vec,
unordered_map<string, pair<bool, size_t>>& cmd_affix) -> void
{
using Err = Parsing_Error_Code;
char16_t f;
p.parse(in, f);
if (in.fail())
return;
command.append(reinterpret_cast<char*>(&f), sizeof(f));
auto dat = cmd_affix.find(command);
// note: the current affix parser does not allow the same flag
// to be used once with cross product and again without
// one flag is tied to one cross product value
if (dat == cmd_affix.end()) {
char cross_char; // 'Y' or 'N'
size_t cnt;
auto& cross_and_cnt = cmd_affix[command]; // == false, 0
in >> cross_char >> cnt;
if (in.fail()) {
p.err = Parsing_Error_Code::ISTREAM_READING_ERROR;
return;
}
if (cross_char != 'Y' && cross_char != 'N') {
p.err = Err::AFX_CROSS_CHAR_INVALID;
in.setstate(in.failbit);
return;
}
bool cross = cross_char == 'Y';
cross_and_cnt = {cross, cnt};
}
else if (dat->second.second) {
dat->second.second--;
auto& elem = vec.emplace_back();
elem.flag = f;
elem.cross_product = dat->second.first;
p.parse(in, elem.stripping);
if (elem.stripping == "0")
elem.stripping.clear();
p.parse(in, elem.appending, elem.cont_flags);
if (elem.appending == "0")
elem.appending.clear();
if (in.fail())
return;
p.parse(in, elem.condition); // optional
if (in.fail() && in.eof() && !in.bad()) {
elem.condition = ".";
p.err = {};
reset_failbit_istream(in);
}
// in >> elem.morphological_fields;
}
else {
p.err = Parsing_Error_Code::ARRAY_COMMAND_EXTRA_ENTRIES_WARNING;
}
}
} // namespace
auto Aff_Data::parse_aff(istream& in, ostream& err_msg) -> bool
{
auto prefixes = vector<Prefix>();
auto suffixes = vector<Suffix>();
auto break_patterns = vector<string>();
auto break_exists = false;
auto input_conversion = vector<pair<string, string>>();
auto output_conversion = vector<pair<string, string>>();
// auto morphological_aliases = vector<vector<string>>();
auto rules = vector<u16string>();
auto replacements = vector<pair<string, string>>();
auto map_related_chars = vector<string>();
auto phonetic_replacements = vector<pair<string, string>>();
max_compound_suggestions = 3;
max_ngram_suggestions = 4;
max_diff_factor = 5;
flag_type = Flag_Type::SINGLE_CHAR;
unordered_map<string, string*> command_strings = {
{"IGNORE", &ignored_chars},
{"KEY", &keyboard_closeness},
{"TRY", &try_chars}};
unordered_map<string, bool*> command_bools = {
{"COMPLEXPREFIXES", &complex_prefixes},
{"ONLYMAXDIFF", &only_max_diff},
{"NOSPLITSUGS", &no_split_suggestions},
{"SUGSWITHDOTS", &suggest_with_dots},
{"FORBIDWARN", &forbid_warn},
{"COMPOUNDMORESUFFIXES", &compound_more_suffixes},
{"CHECKCOMPOUNDDUP", &compound_check_duplicate},
{"CHECKCOMPOUNDREP", &compound_check_rep},
{"CHECKCOMPOUNDCASE", &compound_check_case},
{"CHECKCOMPOUNDTRIPLE", &compound_check_triple},
{"SIMPLIFIEDTRIPLE", &compound_simplified_triple},
{"SYLLABLENUM", &compound_syllable_num},
{"FULLSTRIP", &fullstrip},
{"CHECKSHARPS", &checksharps}};
unordered_map<string, unsigned short*> command_shorts = {
{"MAXCPDSUGS", &max_compound_suggestions},
{"MAXNGRAMSUGS", &max_ngram_suggestions},
{"MAXDIFF", &max_diff_factor},
{"COMPOUNDMIN", &compound_min_length},
{"COMPOUNDWORDMAX", &compound_max_word_count}};
unordered_map<string, vector<pair<string, string>>*> command_vec_pair =
{{"REP", &replacements},
{"PHONE", &phonetic_replacements},
{"ICONV", &input_conversion},
{"OCONV", &output_conversion}};
unordered_map<string, char16_t*> command_flag = {
{"NOSUGGEST", &nosuggest_flag},
{"WARN", &warn_flag},
{"COMPOUNDFLAG", &compound_flag},
{"COMPOUNDBEGIN", &compound_begin_flag},
{"COMPOUNDEND", &compound_last_flag},
{"COMPOUNDMIDDLE", &compound_middle_flag},
{"ONLYINCOMPOUND", &compound_onlyin_flag},
{"COMPOUNDPERMITFLAG", &compound_permit_flag},
{"COMPOUNDFORBIDFLAG", &compound_forbid_flag},
{"COMPOUNDROOT", &compound_root_flag},
{"FORCEUCASE", &compound_force_uppercase},
{"CIRCUMFIX", &circumfix_flag},
{"FORBIDDENWORD", &forbiddenword_flag},
{"KEEPCASE", &keepcase_flag},
{"NEEDAFFIX", &need_affix_flag},
{"SUBSTANDARD", &substandard_flag}};
// keeps count for each array-command
auto cmd_with_vec_cnt = unordered_map<string, size_t>();
auto cmd_affix = unordered_map<string, pair<bool, size_t>>();
auto line = string();
auto command = string();
auto line_num = size_t(0);
auto ss = istringstream();
auto p = Aff_Line_Parser(*this);
auto error_happened = false;
// while parsing, the streams must have plain ascii locale without
// any special number separator otherwise istream >> int might fail
// due to thousands separator.
// "C" locale can be used assuming it is US-ASCII
in.imbue(locale::classic());
ss.imbue(locale::classic());
strip_utf8_bom(in);
while (getline(in, line)) {
line_num++;
ss.str(line);
ss.clear();
p.err = {};
ss >> ws;
if (ss.eof() || ss.peek() == '#')
continue; // skip comment or empty lines
ss >> command;
to_upper_ascii(command);
if (command == "SFX") {
parse_affix(ss, p, command, suffixes, cmd_affix);
}
else if (command == "PFX") {
parse_affix(ss, p, command, prefixes, cmd_affix);
}
else if (command_strings.count(command)) {
auto& str = *command_strings[command];
if (str.empty())
p.parse(ss, str);
else
p.err = Parsing_Error_Code::
MULTIPLE_ENTRIES_WARNING;
}
else if (command_bools.count(command)) {
*command_bools[command] = true;
}
else if (command_shorts.count(command)) {
auto ptr = command_shorts[command];
ss >> *ptr;
if (ptr == &compound_min_length && *ptr == 0)
compound_min_length = 1;
if (ptr == &max_diff_factor && max_diff_factor > 10)
max_diff_factor = 5;
}
else if (command_flag.count(command)) {
p.parse(ss, *command_flag[command]);
}
else if (command == "MAP") {
parse_vector_of_T(ss, p, command, cmd_with_vec_cnt,
map_related_chars);
}
else if (command_vec_pair.count(command)) {
auto& vec = *command_vec_pair[command];
parse_vector_of_T(ss, p, command, cmd_with_vec_cnt,
vec);
}
else if (command == "SET") {
if (encoding.empty())
p.parse(ss, encoding);
else
p.err = Parsing_Error_Code::
MULTIPLE_ENTRIES_WARNING;
}
else if (command == "FLAG") {
p.parse(ss, flag_type);
}
else if (command == "LANG") {
p.parse(ss, icu_locale);
}
else if (command == "AF") {
parse_vector_of_T(ss, p, command, cmd_with_vec_cnt,
flag_aliases);
}
else if (command == "AM") {
// parse_vector_of_T(ss, command, cmd_with_vec_cnt,
// morphological_aliases);
}
else if (command == "BREAK") {
parse_vector_of_T(ss, p, command, cmd_with_vec_cnt,
break_patterns);
break_exists = true;
}
else if (command == "CHECKCOMPOUNDPATTERN") {
parse_vector_of_T(ss, p, command, cmd_with_vec_cnt,
compound_patterns);
}
else if (command == "COMPOUNDRULE") {
parse_vector_of_T(ss, p, command, cmd_with_vec_cnt,
rules, wrap_compound_rule);
}
else if (command == "COMPOUNDSYLLABLE") {
ss >> compound_syllable_max;
p.parse(ss, compound_syllable_vowels);
}
else if (command == "WORDCHARS") {
p.parse(ss, wordchars);
}
if (ss.fail()) {
assert(static_cast<int>(p.err) > 0);
error_happened = true;
err_msg << "Nuspell error: could not parse affix file. "
<< line_num << ": " << line << '\n'
<< get_parsing_error_message(p.err) << endl;
}
else if (p.err != Parsing_Error_Code::NO_ERROR) {
assert(static_cast<int>(p.err) < 0);
err_msg << "Nuspell warning: while parsing affix file. "
<< line_num << ": " << line << '\n'
<< get_parsing_error_message(p.err) << endl;
}
}
// default BREAK definition
if (!break_exists) {
break_patterns = {"-", "^-", "-$"};
}
for (auto& r : replacements) {
auto& s = r.second;
replace_ascii_char(s, '_', ' ');
}
// now fill data structures from temporary data
compound_rules = std::move(rules);
similarities.assign(begin(map_related_chars), end(map_related_chars));
break_table = std::move(break_patterns);
input_substr_replacer = std::move(input_conversion);
output_substr_replacer = std::move(output_conversion);
this->replacements = std::move(replacements);
// phonetic_table = std::move(phonetic_replacements);
for (auto& x : prefixes) {
erase_chars(x.appending, ignored_chars);
}
for (auto& x : suffixes) {
erase_chars(x.appending, ignored_chars);
}
this->prefixes = std::move(prefixes);
this->suffixes = std::move(suffixes);
return in.eof() && !error_happened; // true for success
}
auto Aff_Data::parse_dic(istream& in, ostream& err_msg) -> bool
{
size_t line_number = 1;
size_t approximate_size;
string line;
string word;
string flags_str;
u16string flags;
string u8word;
auto enc_conv = Encoding_Converter(encoding.value_or_default());
auto success = true;
// locale must be without thousands separator.
auto& ctype = use_facet<std::ctype<char>>(locale::classic());
in.imbue(locale::classic());
strip_utf8_bom(in);
in >> approximate_size;
if (in.fail()) {
err_msg << "Nuspell error: while parsing first line of .dic "
"file. There is no number."
<< endl;
return false;
}
words.reserve(approximate_size);
getline(in, line);
while (getline(in, line)) {
line_number++;
word.clear();
flags_str.clear();
flags.clear();
if (!empty(line) && line.back() == '\r')
line.pop_back();
auto end_word_pos = line.npos;
for (size_t i = 0; i != size(line); ++i) {
switch (line[i]) {
case '/':
if (i == 0)
continue;
if (line[i - 1] == '\\') {
--i;
line.erase(i, 1);
}
else {
end_word_pos = i;
}
break;
case '\t':
end_word_pos = i;
break;
case ' ': {
auto p = ctype.scan_not(
ctype.space, &line[i + 1], end_ptr(line));
size_t k = p - begin_ptr(line);
if (k == size(line) ||
(size(line) - k >= 3 &&
line[k + 2] == ':' &&
ctype.is(ctype.lower, line[k]) &&
ctype.is(ctype.lower, line[k + 1])))
end_word_pos = i;
break;
}
}
if (end_word_pos != line.npos)
break;
}
word.assign(line, 0, end_word_pos);
if (end_word_pos != line.npos && line[end_word_pos] == '/') {
// slash found, word until slash
auto slash_pos = end_word_pos;
auto ptr = ctype.scan_is(ctype.space, &line[slash_pos],
end_ptr(line));
auto end_flags_pos = ptr - begin_ptr(line);
flags_str.assign(line, slash_pos + 1,
end_flags_pos - (slash_pos + 1));
auto err = decode_flags_possible_alias(
flags_str, flag_type, encoding, flag_aliases,
flags);
if (err == Parsing_Error_Code::MISSING_FLAGS ||
(/* bug in eu.dic that we fix here. Remove this once
fixed there. */
err == Parsing_Error_Code::INVALID_NUMERIC_FLAG &&
flags_str == "None"))
err = Parsing_Error_Code::
NO_FLAGS_AFTER_SLASH_WARNING;
if (static_cast<int>(err) > 0) {
err_msg << "Nuspell error: while parsing "
".dic file. "
<< line_number << ": " << line << '\n'
<< get_parsing_error_message(err)
<< endl;
success = false;
continue;
}
else if (static_cast<int>(err) < 0) {
err_msg << "Nuspell warning: while parsing "