~drizzle-trunk/drizzle/development

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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
/* Copyright (C) 2004 MySQL AB

   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; version 2 of the License.

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

/*
  Written by Anjuta Widenius
*/

/*
  Creates one include file and multiple language-error message files from one
  multi-language text file.
*/

#include <my_global.h>
#include <m_ctype.h>
#include <my_sys.h>
#include <m_string.h>
#include <my_getopt.h>
#include <assert.h>
#include <my_dir.h>

#define MAX_ROWS  1000
#define HEADER_LENGTH 32                /* Length of header in errmsg.sys */
#define DEFAULT_CHARSET_DIR "../sql/share/charsets"
#define ER_PREFIX "ER_"
#define WARN_PREFIX "WARN_"
static char *OUTFILE= (char*) "errmsg.sys";
static char *HEADERFILE= (char*) "mysqld_error.h";
static char *NAMEFILE= (char*) "mysqld_ername.h";
static char *STATEFILE= (char*) "sql_state.h";
static char *TXTFILE= (char*) "../sql/share/errmsg.txt";
static char *DATADIRECTORY= (char*) "../sql/share/";
#ifndef DBUG_OFF
static char *default_dbug_option= (char*) "d:t:O,/tmp/comp_err.trace";
#endif

/* Header for errmsg.sys files */
uchar file_head[]= { 254, 254, 2, 1 };
/* Store positions to each error message row to store in errmsg.sys header */
uint file_pos[MAX_ROWS];

const char *empty_string= "";			/* For empty states */
/*
  Default values for command line options. See getopt structure for definitions
  for these.
*/

const char *default_language= "eng";
int er_offset= 1000;
my_bool info_flag= 0;

/* Storage of one error message row (for one language) */

struct message
{
  char *lang_short_name;
  char *text;
};


/* Storage for languages and charsets (from start of error text file) */

struct languages
{
  char *lang_long_name;				/* full name of the language */
  char *lang_short_name;			/* abbreviation of the lang. */
  char *charset;				/* Character set name */
  struct languages *next_lang;			/* Pointer to next language */
};


/* Name, code and  texts (for all lang) for one error message */

struct errors
{
  const char *er_name;			/* Name of the error (ER_HASHCK) */
  int d_code;                           /* Error code number */
  const char *sql_code1;		/* sql state */
  const char *sql_code2;		/* ODBC state */
  struct errors *next_error;            /* Pointer to next error */
  DYNAMIC_ARRAY msg;                    /* All language texts for this error */
};


static struct my_option my_long_options[]=
{
#ifdef DBUG_OFF
  {"debug", '#', "This is a non-debug version. Catch this and exit",
   0, 0, 0, GET_DISABLED, OPT_ARG, 0, 0, 0, 0, 0, 0},
#else
  {"debug", '#', "Output debug log", (uchar**) & default_dbug_option,
   (uchar**) & default_dbug_option, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
#endif
  {"debug-info", 'T', "Print some debug info at exit.", (uchar**) & info_flag,
   (uchar**) & info_flag, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"help", '?', "Displays this help and exits.", 0, 0, 0, GET_NO_ARG,
   NO_ARG, 0, 0, 0, 0, 0, 0},
  {"version", 'V', "Prints version", 0, 0, 0, GET_NO_ARG,
   NO_ARG, 0, 0, 0, 0, 0, 0},
  {"charset", 'C', "Charset dir", (uchar**) & charsets_dir,
   (uchar**) & charsets_dir,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"in_file", 'F', "Input file", (uchar**) & TXTFILE, (uchar**) & TXTFILE,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"out_dir", 'D', "Output base directory", (uchar**) & DATADIRECTORY,
   (uchar**) & DATADIRECTORY,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"out_file", 'O', "Output filename (errmsg.sys)", (uchar**) & OUTFILE,
   (uchar**) & OUTFILE, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"header_file", 'H', "mysqld_error.h file ", (uchar**) & HEADERFILE,
   (uchar**) & HEADERFILE, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"name_file", 'N', "mysqld_ername.h file ", (uchar**) & NAMEFILE,
   (uchar**) & NAMEFILE, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"state_file", 'S', "sql_state.h file", (uchar**) & STATEFILE,
   (uchar**) & STATEFILE, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};


static struct languages *parse_charset_string(char *str);
static struct errors *parse_error_string(char *ptr, int er_count);
static struct message *parse_message_string(struct message *new_message,
					    char *str);
static struct message *find_message(struct errors *err, const char *lang,
                                    my_bool no_default);
static int check_message_format(struct errors *err,
                                const char* mess);
static int parse_input_file(const char *file_name, struct errors **top_error,
			    struct languages **top_language);
static int get_options(int *argc, char ***argv);
static void print_version(void);
static void usage(void);
static my_bool get_one_option(int optid, const struct my_option *opt,
			      char *argument);
static char *parse_text_line(char *pos);
static int copy_rows(FILE * to, char *row, int row_nr, long start_pos);
static char *parse_default_language(char *str);
static uint parse_error_offset(char *str);

static char *skip_delimiters(char *str);
static char *get_word(char **str);
static char *find_end_of_word(char *str);
static void clean_up(struct languages *lang_head, struct errors *error_head);
static int create_header_files(struct errors *error_head);
static int create_sys_files(struct languages *lang_head,
			    struct errors *error_head, uint row_count);


int main(int argc, char *argv[])
{
  MY_INIT(argv[0]);
  {
    uint row_count;
    struct errors *error_head;
    struct languages *lang_head;
    DBUG_ENTER("main");

    charsets_dir= DEFAULT_CHARSET_DIR;
    my_umask_dir= 0777;
    if (get_options(&argc, &argv))
      DBUG_RETURN(1);
    if (!(row_count= parse_input_file(TXTFILE, &error_head, &lang_head)))
    {
      fprintf(stderr, "Failed to parse input file %s\n", TXTFILE);
      DBUG_RETURN(1);
    }
    if (lang_head == NULL || error_head == NULL)
    {
      fprintf(stderr, "Failed to parse input file %s\n", TXTFILE);
      DBUG_RETURN(1);
    }

    if (create_header_files(error_head))
    {
      fprintf(stderr, "Failed to create header files\n");
      DBUG_RETURN(1);
    }
    if (create_sys_files(lang_head, error_head, row_count))
    {
      fprintf(stderr, "Failed to create sys files\n");
      DBUG_RETURN(1);
    }
    clean_up(lang_head, error_head);
    DBUG_LEAVE;			/* Can't use dbug after my_end() */
    my_end(info_flag ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
    return 0;
  }
}


static int create_header_files(struct errors *error_head)
{
  uint er_last;
  FILE *er_definef, *sql_statef, *er_namef;
  struct errors *tmp_error;
  DBUG_ENTER("create_header_files");

  if (!(er_definef= my_fopen(HEADERFILE, O_WRONLY, MYF(MY_WME))))
  {
    DBUG_RETURN(1);
  }
  if (!(sql_statef= my_fopen(STATEFILE, O_WRONLY, MYF(MY_WME))))
  {
    my_fclose(er_definef, MYF(0));
    DBUG_RETURN(1);
  }
  if (!(er_namef= my_fopen(NAMEFILE, O_WRONLY, MYF(MY_WME))))
  {
    my_fclose(er_definef, MYF(0));
    my_fclose(sql_statef, MYF(0));
    DBUG_RETURN(1);
  }

  fprintf(er_definef, "/* Autogenerated file, please don't edit */\n\n");
  fprintf(sql_statef, "/* Autogenerated file, please don't edit */\n\n");
  fprintf(er_namef, "/* Autogenerated file, please don't edit */\n\n");

  fprintf(er_definef, "#define ER_ERROR_FIRST %d\n", error_head->d_code);

  for (tmp_error= error_head; tmp_error; tmp_error= tmp_error->next_error)
  {
    /*
       generating mysqld_error.h
       fprintf() will automatically add \r on windows
    */
    fprintf(er_definef, "#define %s %d\n", tmp_error->er_name,
	    tmp_error->d_code);
    er_last= tmp_error->d_code;

    /* generating sql_state.h file */
    if (tmp_error->sql_code1[0] || tmp_error->sql_code2[0])
      fprintf(sql_statef,
	      "{ %-40s,\"%s\", \"%s\" },\n", tmp_error->er_name,
	      tmp_error->sql_code1, tmp_error->sql_code2);
    /*generating er_name file */
    fprintf(er_namef, "{ \"%s\", %d },\n", tmp_error->er_name,
	    tmp_error->d_code);

  }
  /* finishing off with mysqld_error.h */
  fprintf(er_definef, "#define ER_ERROR_LAST %d\n", er_last);
  my_fclose(er_definef, MYF(0));
  my_fclose(sql_statef, MYF(0));
  my_fclose(er_namef, MYF(0));
  DBUG_RETURN(0);
}


static int create_sys_files(struct languages *lang_head,
			    struct errors *error_head, uint row_count)
{
  FILE *to;
  uint csnum= 0, length, i, row_nr;
  uchar head[32];
  char outfile[FN_REFLEN], *outfile_end;
  long start_pos;
  struct message *tmp;
  struct languages *tmp_lang;
  struct errors *tmp_error;

  struct stat stat_info;
  DBUG_ENTER("create_sys_files");

  /*
     going over all languages and assembling corresponding error messages
  */
  for (tmp_lang= lang_head; tmp_lang; tmp_lang= tmp_lang->next_lang)
  {

    /* setting charset name */
    if (!(csnum= get_charset_number(tmp_lang->charset, MY_CS_PRIMARY)))
    {
      fprintf(stderr, "Unknown charset '%s' in '%s'\n", tmp_lang->charset,
	      TXTFILE);
      DBUG_RETURN(1);
    }

    outfile_end= strxmov(outfile, DATADIRECTORY, 
                         tmp_lang->lang_long_name, NullS);
    if (stat(outfile, &stat_info))
    {
      if (my_mkdir(outfile, 0777,MYF(0)) < 0)
      {
        fprintf(stderr, "Can't create output directory for %s\n", 
                outfile);
        DBUG_RETURN(1);
      }
    }

    strxmov(outfile_end, FN_ROOTDIR, OUTFILE, NullS);

    if (!(to= my_fopen(outfile, O_WRONLY | FILE_BINARY, MYF(MY_WME))))
      DBUG_RETURN(1);

    /* 2 is for 2 bytes to store row position / error message */
    start_pos= (long) (HEADER_LENGTH + row_count * 2);
    fseek(to, start_pos, 0);
    row_nr= 0;
    for (tmp_error= error_head; tmp_error; tmp_error= tmp_error->next_error)
    {
      /* dealing with messages */
      tmp= find_message(tmp_error, tmp_lang->lang_short_name, FALSE);

      if (!tmp)
      {
	fprintf(stderr,
		"Did not find message for %s neither in %s nor in default "
		"language\n", tmp_error->er_name, tmp_lang->lang_short_name);
	goto err;
      }
      if (copy_rows(to, tmp->text, row_nr, start_pos))
      {
	fprintf(stderr, "Failed to copy rows to %s\n", outfile);
	goto err;
      }
      row_nr++;
    }

    /* continue with header of the errmsg.sys file */
    length= ftell(to) - HEADER_LENGTH - row_count * 2;
    bzero((uchar*) head, HEADER_LENGTH);
    bmove((uchar *) head, (uchar *) file_head, 4);
    head[4]= 1;
    int2store(head + 6, length);
    int2store(head + 8, row_count);
    head[30]= csnum;

    my_fseek(to, 0l, MY_SEEK_SET, MYF(0));
    if (my_fwrite(to, (uchar*) head, HEADER_LENGTH, MYF(MY_WME | MY_FNABP)))
      goto err;

    for (i= 0; i < row_count; i++)
    {
      int2store(head, file_pos[i]);
      if (my_fwrite(to, (uchar*) head, 2, MYF(MY_WME | MY_FNABP)))
	goto err;
    }
    my_fclose(to, MYF(0));
  }
  DBUG_RETURN(0);

err:
  my_fclose(to, MYF(0));
  DBUG_RETURN(1);
}


static void clean_up(struct languages *lang_head, struct errors *error_head)
{
  struct languages *tmp_lang, *next_language;
  struct errors *tmp_error, *next_error;
  uint count, i;

  my_free((uchar*) default_language, MYF(0));

  for (tmp_lang= lang_head; tmp_lang; tmp_lang= next_language)
  {
    next_language= tmp_lang->next_lang;
    my_free(tmp_lang->lang_short_name, MYF(0));
    my_free(tmp_lang->lang_long_name, MYF(0));
    my_free(tmp_lang->charset, MYF(0));
    my_free((uchar*) tmp_lang, MYF(0));
  }

  for (tmp_error= error_head; tmp_error; tmp_error= next_error)
  {
    next_error= tmp_error->next_error;
    count= (tmp_error->msg).elements;
    for (i= 0; i < count; i++)
    {
      struct message *tmp;
      tmp= dynamic_element(&tmp_error->msg, i, struct message*);
      my_free((uchar*) tmp->lang_short_name, MYF(0));
      my_free((uchar*) tmp->text, MYF(0));
    }

    delete_dynamic(&tmp_error->msg);
    if (tmp_error->sql_code1[0])
      my_free((uchar*) tmp_error->sql_code1, MYF(0));
    if (tmp_error->sql_code2[0])
      my_free((uchar*) tmp_error->sql_code2, MYF(0));
    my_free((uchar*) tmp_error->er_name, MYF(0));
    my_free((uchar*) tmp_error, MYF(0));
  }
}


static int parse_input_file(const char *file_name, struct errors **top_error,
			    struct languages **top_lang)
{
  FILE *file;
  char *str, buff[1000];
  struct errors *current_error= 0, **tail_error= top_error;
  struct message current_message;
  int rcount= 0;
  DBUG_ENTER("parse_input_file");

  *top_error= 0;
  *top_lang= 0;
  if (!(file= my_fopen(file_name, O_RDONLY | O_SHARE, MYF(MY_WME))))
    DBUG_RETURN(0);

  while ((str= fgets(buff, sizeof(buff), file)))
  {
    if (is_prefix(str, "language"))
    {
      if (!(*top_lang= parse_charset_string(str)))
      {
	fprintf(stderr, "Failed to parse the charset string!\n");
	DBUG_RETURN(0);
      }
      continue;
    }
    if (is_prefix(str, "start-error-number"))
    {
      if (!(er_offset= parse_error_offset(str)))
      {
	fprintf(stderr, "Failed to parse the error offset string!\n");
	DBUG_RETURN(0);
      }
      continue;
    }
    if (is_prefix(str, "default-language"))
    {
      if (!(default_language= parse_default_language(str)))
      {
	DBUG_PRINT("info", ("default_slang: %s", default_language));
	fprintf(stderr,
		"Failed to parse the default language line. Aborting\n");
	DBUG_RETURN(0);
      }
      continue;
    }

    if (*str == '\t' || *str == ' ')
    {
      /* New error message in another language for previous error */
      if (!current_error)
      {
	fprintf(stderr, "Error in the input file format\n");
	DBUG_RETURN(0);
      }
      if (!parse_message_string(&current_message, str))
      {
	fprintf(stderr, "Failed to parse message string for error '%s'",
		current_error->er_name);
	DBUG_RETURN(0);
      }
      if (find_message(current_error, current_message.lang_short_name, TRUE))
      {
	fprintf(stderr, "Duplicate message string for error '%s'"
                        " in language '%s'\n",
		current_error->er_name, current_message.lang_short_name);
	DBUG_RETURN(0);
      }
      if (check_message_format(current_error, current_message.text))
      {
	fprintf(stderr, "Wrong formatspecifier of error message string"
                        " for error '%s' in language '%s'\n",
		current_error->er_name, current_message.lang_short_name);
	DBUG_RETURN(0);
      }
      if (insert_dynamic(&current_error->msg, (uchar *) & current_message))
	DBUG_RETURN(0);
      continue;
    }
    if (is_prefix(str, ER_PREFIX) || is_prefix(str, WARN_PREFIX))
    {
      if (!(current_error= parse_error_string(str, rcount)))
      {
	fprintf(stderr, "Failed to parse the error name string\n");
	DBUG_RETURN(0);
      }
      rcount++;                         /* Count number of unique errors */

      /* add error to the list */
      *tail_error= current_error;
      tail_error= &current_error->next_error;
      continue;
    }
    if (*str == '#' || *str == '\n')
      continue;					/* skip comment or empty lines */

    fprintf(stderr, "Wrong input file format. Stop!\nLine: %s\n", str);
    DBUG_RETURN(0);
  }
  *tail_error= 0;				/* Mark end of list */

  my_fclose(file, MYF(0));
  DBUG_RETURN(rcount);
}


static uint parse_error_offset(char *str)
{
  char *soffset, *end;
  int error;
  uint ioffset;

  DBUG_ENTER("parse_error_offset");
  /* skipping the "start-error-number" keyword and spaces after it */
  str= find_end_of_word(str);
  str= skip_delimiters(str);

  if (!*str)
    DBUG_RETURN(0);     /* Unexpected EOL: No error number after the keyword */

  /* reading the error offset */
  if (!(soffset= get_word(&str)))
    DBUG_RETURN(0);				/* OOM: Fatal error */
  DBUG_PRINT("info", ("default_error_offset: %s", soffset));

  /* skipping space(s) and/or tabs after the error offset */
  str= skip_delimiters(str);
  DBUG_PRINT("info", ("str: %s", str));
  if (*str)
  {
    /* The line does not end with the error offset -> error! */
    fprintf(stderr, "The error offset line does not end with an error offset");
    DBUG_RETURN(0);
  }
  DBUG_PRINT("info", ("str: %s", str));

  end= 0;
  ioffset= (uint) my_strtoll10(soffset, &end, &error);
  my_free((uchar*) soffset, MYF(0));
  DBUG_RETURN(ioffset);
}


/* Parsing of the default language line. e.g. "default-language eng" */

static char *parse_default_language(char *str)
{
  char *slang;

  DBUG_ENTER("parse_default_language");
  /* skipping the "default-language" keyword */
  str= find_end_of_word(str);
  /* skipping space(s) and/or tabs after the keyword */
  str= skip_delimiters(str);
  if (!*str)
  {
    fprintf(stderr,
	    "Unexpected EOL: No short language name after the keyword\n");
    DBUG_RETURN(0);
  }

  /* reading the short language tag */
  if (!(slang= get_word(&str)))
    DBUG_RETURN(0);				/* OOM: Fatal error */
  DBUG_PRINT("info", ("default_slang: %s", slang));

  str= skip_delimiters(str);
  DBUG_PRINT("info", ("str: %s", str));
  if (*str)
  {
    fprintf(stderr,
	    "The default language line does not end with short language "
	    "name\n");
    DBUG_RETURN(0);
  }
  DBUG_PRINT("info", ("str: %s", str));
  DBUG_RETURN(slang);
}


/*
  Find the message in a particular language

  SYNOPSIS
    find_message()
    err             Error to find message for
    lang            Language of message to find
    no_default      Don't return default (English) if does not exit

  RETURN VALUE
    Returns the message structure if one is found, or NULL if not.
*/
static struct message *find_message(struct errors *err, const char *lang,
                                    my_bool no_default)
{
  struct message *tmp, *return_val= 0;
  uint i, count;
  DBUG_ENTER("find_message");

  count= (err->msg).elements;
  for (i= 0; i < count; i++)
  {
    tmp= dynamic_element(&err->msg, i, struct message*);

    if (!strcmp(tmp->lang_short_name, lang))
      DBUG_RETURN(tmp);
    if (!strcmp(tmp->lang_short_name, default_language))
    {
      DBUG_ASSERT(tmp->text[0] != 0);
      return_val= tmp;
    }
  }
  DBUG_RETURN(no_default ? NULL : return_val);
}



/*
  Check message format specifiers against error message for
  previous language

  SYNOPSIS
    checksum_format_specifier()
    msg            String for which to generate checksum
                   for the format specifiers

  RETURN VALUE
    Returns the checksum for all the characters of the
    format specifiers

    Ex.
     "text '%-64.s' text part 2 %d'"
            ^^^^^^              ^^
            characters will be xored to form checksum

    NOTE:
      Does not support format specifiers with positional args
      like "%2$s" 
*/

static ha_checksum checksum_format_specifier(const char* msg)
{
  ha_checksum chksum= 0;
  const uchar* p= (uchar *)msg;
  const uchar* start= 0;
  int num_format_specifiers= 0;
  while (*p)
  {

    if (*p == '%')
    {
      start= p+1; /* Entering format specifier */
      num_format_specifiers++;
    }
    else if (start)
    {
      switch(*p)
      {
      case 'd':
      case 'u':
      case 'x':
      case 's':
        chksum= my_checksum(chksum, start, p-start);
        start= 0; /* Not in format specifier anymore */
        break;

      default:
        break;
      }
    }

    p++;
  }

  if (start)
  {
    /* Still inside a format specifier after end of string */

    fprintf(stderr, "Still inside formatspecifier after end of string"
                    " in'%s'\n", msg);
    DBUG_ASSERT(start==0);
  }

  /* Add number of format specifiers to checksum as extra safeguard */
  chksum+= num_format_specifiers;

  return chksum;
}


/*
  Check message format specifiers against error message for
  previous language

  SYNOPSIS
    check_message_format()
    err             Error to check message for
    mess            Message to check

  RETURN VALUE
    Returns 0 if no previous error message or message format is ok
*/
static int check_message_format(struct errors *err,
                                const char* mess)
{
  struct message *first;
  DBUG_ENTER("check_message_format");

  /*  Get first message(if any) */
  if ((err->msg).elements == 0)
    DBUG_RETURN(0); /* No previous message to compare against */

  first= dynamic_element(&err->msg, 0, struct message*);
  DBUG_ASSERT(first != NULL);

  if (checksum_format_specifier(first->text) !=
      checksum_format_specifier(mess))
  {
    /* Check sum of format specifiers failed, they should be equal */
    DBUG_RETURN(1);
  }
  DBUG_RETURN(0);
}


/*
  Skips spaces and or tabs till the beginning of the next word
  Returns pointer to the beginning of the first character of the word
*/

static char *skip_delimiters(char *str)
{
  DBUG_ENTER("skip_delimiters");
  for (;
       *str == ' ' || *str == ',' || *str == '\t' || *str == '\r' ||
       *str == '\n' || *str == '='; str++)
    ;
  DBUG_RETURN(str);
}


/*
  Skips all characters till meets with space, or tab, or EOL
*/

static char *find_end_of_word(char *str)
{
  DBUG_ENTER("find_end_of_word");
  for (;
       *str != ' ' && *str != '\t' && *str != '\n' && *str != '\r' && *str &&
       *str != ',' && *str != ';' && *str != '='; str++)
    ;
  DBUG_RETURN(str);
}


/* Read the word starting from *str */

static char *get_word(char **str)
{
  char *start= *str;
  DBUG_ENTER("get_word");

  *str= find_end_of_word(start);
  DBUG_RETURN(my_strndup(start, (uint) (*str - start),
				    MYF(MY_WME | MY_FAE)));
}


/*
  Parsing the string with short_lang - message text. Code - to
  remember to which error does the text belong
*/

static struct message *parse_message_string(struct message *new_message,
					    char *str)
{
  char *start;

  DBUG_ENTER("parse_message_string");
  DBUG_PRINT("enter", ("str: %s", str));

  /*skip space(s) and/or tabs in the beginning */
  while (*str == ' ' || *str == '\t' || *str == '\n')
    str++;

  if (!*str)
  {
    /* It was not a message line, but an empty line. */
    DBUG_PRINT("info", ("str: %s", str));
    DBUG_RETURN(0);
  }

  /* reading the short lang */
  start= str;
  while (*str != ' ' && *str != '\t' && *str)
    str++;
  if (!(new_message->lang_short_name=
	my_strndup(start, (uint) (str - start),
			      MYF(MY_WME | MY_FAE))))
    DBUG_RETURN(0);				/* Fatal error */
  DBUG_PRINT("info", ("msg_slang: %s", new_message->lang_short_name));

  /*skip space(s) and/or tabs after the lang */
  while (*str == ' ' || *str == '\t' || *str == '\n')
    str++;

  if (*str != '"')
  {
    fprintf(stderr, "Unexpected EOL");
    DBUG_PRINT("info", ("str: %s", str));
    DBUG_RETURN(0);
  }

  /* reading the text */
  start= str + 1;
  str= parse_text_line(start);

  if (!(new_message->text= my_strndup(start, (uint) (str - start),
						 MYF(MY_WME | MY_FAE))))
    DBUG_RETURN(0);				/* Fatal error */
  DBUG_PRINT("info", ("msg_text: %s", new_message->text));

  DBUG_RETURN(new_message);
}


/*
  Parsing the string with error name and codes; returns the pointer to
  the errors struct
*/

static struct errors *parse_error_string(char *str, int er_count)
{
  struct errors *new_error;
  char *start;
  DBUG_ENTER("parse_error_string");
  DBUG_PRINT("enter", ("str: %s", str));

  /* create a new element */
  new_error= (struct errors *) my_malloc(sizeof(*new_error), MYF(MY_WME));

  if (my_init_dynamic_array(&new_error->msg, sizeof(struct message), 0, 0))
    DBUG_RETURN(0);				/* OOM: Fatal error */

  /* getting the error name */
  start= str;
  str= skip_delimiters(str);

  if (!(new_error->er_name= get_word(&str)))
    DBUG_RETURN(0);				/* OOM: Fatal error */
  DBUG_PRINT("info", ("er_name: %s", new_error->er_name));

  str= skip_delimiters(str);

  /* getting the code1 */

  new_error->d_code= er_offset + er_count;
  DBUG_PRINT("info", ("d_code: %d", new_error->d_code));

  str= skip_delimiters(str);

  /* if we reached EOL => no more codes, but this can happen */
  if (!*str)
  {
    new_error->sql_code1= empty_string;
    new_error->sql_code2= empty_string;
    DBUG_PRINT("info", ("str: %s", str));
    DBUG_RETURN(new_error);
  }

  /* getting the sql_code 1 */

  if (!(new_error->sql_code1= get_word(&str)))
    DBUG_RETURN(0);				/* OOM: Fatal error */
  DBUG_PRINT("info", ("sql_code1: %s", new_error->sql_code1));

  str= skip_delimiters(str);

  /* if we reached EOL => no more codes, but this can happen */
  if (!*str)
  {
    new_error->sql_code2= empty_string;
    DBUG_PRINT("info", ("str: %s", str));
    DBUG_RETURN(new_error);
  }

  /* getting the sql_code 2 */
  if (!(new_error->sql_code2= get_word(&str)))
    DBUG_RETURN(0);				/* OOM: Fatal error */
  DBUG_PRINT("info", ("sql_code2: %s", new_error->sql_code2));

  str= skip_delimiters(str);
  if (*str)
  {
    fprintf(stderr, "The error line did not end with sql/odbc code!");
    DBUG_RETURN(0);
  }

  DBUG_RETURN(new_error);
}


/* 
  Parsing the string with full lang name/short lang name/charset;
  returns pointer to the language structure
*/

static struct languages *parse_charset_string(char *str)
{
  struct languages *head=0, *new_lang;
  DBUG_ENTER("parse_charset_string");
  DBUG_PRINT("enter", ("str: %s", str));

  /* skip over keyword */
  str= find_end_of_word(str);
  if (!*str)
  {
    /* unexpected EOL */
    DBUG_PRINT("info", ("str: %s", str));
    DBUG_RETURN(0);
  }

  str= skip_delimiters(str);
  if (!(*str != ';' && *str))
    DBUG_RETURN(0);

  do
  {
    /*creating new element of the linked list */
    new_lang= (struct languages *) my_malloc(sizeof(*new_lang), MYF(MY_WME));
    new_lang->next_lang= head;
    head= new_lang;

    /* get the full language name */

    if (!(new_lang->lang_long_name= get_word(&str)))
      DBUG_RETURN(0);				/* OOM: Fatal error */

    DBUG_PRINT("info", ("long_name: %s", new_lang->lang_long_name));

    /* getting the short name for language */
    str= skip_delimiters(str);
    if (!*str)
      DBUG_RETURN(0);				/* Error: No space or tab */

    if (!(new_lang->lang_short_name= get_word(&str)))
      DBUG_RETURN(0);				/* OOM: Fatal error */
    DBUG_PRINT("info", ("short_name: %s", new_lang->lang_short_name));

    /* getting the charset name */
    str= skip_delimiters(str);
    if (!(new_lang->charset= get_word(&str)))
      DBUG_RETURN(0);				/* Fatal error */
    DBUG_PRINT("info", ("charset: %s", new_lang->charset));

    /* skipping space, tab or "," */
    str= skip_delimiters(str);
  }
  while (*str != ';' && *str);

  DBUG_PRINT("info", ("long name: %s", new_lang->lang_long_name));
  DBUG_RETURN(head);
}


/* Read options */

static void print_version(void)
{
  DBUG_ENTER("print_version");
  printf("%s  (Compile errormessage)  Ver %s\n", my_progname, "2.0");
  DBUG_VOID_RETURN;
}


static my_bool
get_one_option(int optid, const struct my_option *opt __attribute__ ((unused)),
	       char *argument __attribute__ ((unused)))
{
  DBUG_ENTER("get_one_option");
  switch (optid) {
  case 'V':
    print_version();
    exit(0);
    break;
  case '?':
    usage();
    exit(0);
    break;
  case '#':
    DBUG_PUSH(argument ? argument : default_dbug_option);
    break;
  }
  DBUG_RETURN(0);
}


static void usage(void)
{
  DBUG_ENTER("usage");
  print_version();
  printf("This software comes with ABSOLUTELY NO WARRANTY. "
         "This is free software,\n"
         "and you are welcome to modify and redistribute it under the GPL license.\n"
         "Usage:\n");
  my_print_help(my_long_options);
  my_print_variables(my_long_options);
  DBUG_VOID_RETURN;
}


static int get_options(int *argc, char ***argv)
{
  int ho_error;
  DBUG_ENTER("get_options");

  if ((ho_error= handle_options(argc, argv, my_long_options, get_one_option)))
    DBUG_RETURN(ho_error);
  DBUG_RETURN(0);
}


/*
  Read rows and remember them until row that start with char Converts
  row as a C-compiler would convert a textstring
*/

static char *parse_text_line(char *pos)
{
  int i, nr;
  char *row= pos;
  DBUG_ENTER("parse_text_line");

  while (*pos)
  {
    if (*pos == '\\')
    {
      switch (*++pos) {
      case '\\':
      case '"':
	VOID(strmov(pos - 1, pos));
	break;
      case 'n':
	pos[-1]= '\n';
	VOID(strmov(pos, pos + 1));
	break;
      default:
	if (*pos >= '0' && *pos < '8')
	{
	  nr= 0;
	  for (i= 0; i < 3 && (*pos >= '0' && *pos < '8'); i++)
	    nr= nr * 8 + (*(pos++) - '0');
	  pos -= i;
	  pos[-1]= nr;
	  VOID(strmov(pos, pos + i));
	}
	else if (*pos)
	  VOID(strmov(pos - 1, pos));		/* Remove '\' */
      }
    }
    else
      pos++;
  }
  while (pos > row + 1 && *pos != '"')
    pos--;
  *pos= 0;
  DBUG_RETURN(pos);
}


/* Copy rows from memory to file and remember position */

static int copy_rows(FILE *to, char *row, int row_nr, long start_pos)
{
  DBUG_ENTER("copy_rows");

  file_pos[row_nr]= (int) (ftell(to) - start_pos);
  if (fputs(row, to) == EOF || fputc('\0', to) == EOF)
  {
    fprintf(stderr, "Can't write to outputfile\n");
    DBUG_RETURN(1);
  }

  DBUG_RETURN(0);
}