3 |
* |
* |
4 |
* Project: Shapelib |
* Project: Shapelib |
5 |
* Purpose: Implementation of .dbf access API documented in dbf_api.html. |
* Purpose: Implementation of .dbf access API documented in dbf_api.html. |
6 |
* Author: Frank Warmerdam, [email protected] |
* Author: Frank Warmerdam, [email protected] |
7 |
* |
* |
8 |
****************************************************************************** |
****************************************************************************** |
9 |
* Copyright (c) 1999, Frank Warmerdam |
* Copyright (c) 1999, Frank Warmerdam |
34 |
****************************************************************************** |
****************************************************************************** |
35 |
* |
* |
36 |
* $Log$ |
* $Log$ |
37 |
* Revision 1.1 2003/08/19 21:29:25 jan |
* Revision 1.3 2004/05/17 15:47:57 bh |
38 |
* These files have been moved here from thuban/extensions/shapelib/ |
* Update to newest shapelib and get rid of Thuban specific extensions, |
39 |
* See there in the Attic for the older history. |
* i.e. use the new DBFUpdateHeader instead of our DBFCommit kludge |
40 |
* |
* |
41 |
* Revision 1.4 2002/08/22 16:00:01 bh |
* * libraries/shapelib/shpopen.c: Update to version from current |
42 |
* * extensions/shapelib/shapefil.h (DBFCommit), |
* shapelib CVS. |
43 |
* extensions/shapelib/dbfopen.c (DBFCommit): New API function to |
* |
44 |
* commit any changes made to the DBF file. |
* * libraries/shapelib/shapefil.h: Update to version from current |
45 |
* |
* shapelib CVS. |
46 |
* Revision 1.3 2002/05/07 14:09:45 bh |
* |
47 |
* * extensions/shapelib/shpopen.c, extensions/shapelib/shapefil.h, |
* * libraries/shapelib/dbfopen.c: Update to version from current |
48 |
* extensions/shapelib/dbfopen.c: Really update to the versions of |
* shapelib CVS. |
49 |
* shapelib 1.2.9. For some reason it wasn't really done on |
* (DBFCommit): Effectively removed since shapelib itself has |
50 |
* 2002-04-11. |
* DBFUpdateHeader now which is better for what DBFCommit wanted to |
51 |
|
* achieve. |
52 |
|
* We're now using an unmodified version of dbfopen. |
53 |
|
* |
54 |
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* * libraries/pyshapelib/dbflib_wrap.c, libraries/pyshapelib/dbflib.py: |
55 |
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* Update from dbflib.i |
56 |
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* |
57 |
|
* * libraries/pyshapelib/dbflib.i (DBFInfo_commit): New. Implementation of |
58 |
|
* the commit method. This new indirection is necessary because we use the |
59 |
|
* DBFUpdateHeader function now which is not available in shapelib <= |
60 |
|
* 1.2.10 |
61 |
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* (DBFFile::commit): Use DBFInfo_commit as implementation |
62 |
|
* (pragma __class__): New. Kludge to remove the commit method when |
63 |
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* the DBFUpdateHeader function isn't available |
64 |
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* (_have_commit): New. Helper for the pragma kludge. |
65 |
|
* |
66 |
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* * libraries/pyshapelib/setup.py (dbf_macros): New. Return the |
67 |
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* preprocessor macros needed to compile the dbflib wrapper. Determine |
68 |
|
* whether DBFUpdateHeader is available and define the right value of |
69 |
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* HAVE_UPDATE_HEADER |
70 |
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* (extensions): Use dbf_macros for the dbflibc extension |
71 |
|
* |
72 |
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* * setup.py (extensions): Add the HAVE_UPDATE_HEADER macro with |
73 |
|
* value '1' to the Lib.dbflibc extension. This simply reflects the |
74 |
|
* shapelib and pyshapelib updates |
75 |
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* |
76 |
|
* Revision 1.53 2003/12/29 00:00:30 fwarmerdam |
77 |
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* mark DBFWriteAttributeDirectly as SHPAPI_CALL |
78 |
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* |
79 |
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* Revision 1.52 2003/07/08 15:20:03 warmerda |
80 |
|
* avoid warnings about downcasting to unsigned char |
81 |
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* |
82 |
|
* Revision 1.51 2003/07/08 13:50:15 warmerda |
83 |
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* DBFIsAttributeNULL check for pszValue==NULL - bug 360 |
84 |
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* |
85 |
|
* Revision 1.50 2003/04/21 18:58:25 warmerda |
86 |
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* ensure current record is flushed at same time as header is updated |
87 |
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* |
88 |
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* Revision 1.49 2003/04/21 18:30:37 warmerda |
89 |
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* added header write/update public methods |
90 |
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* |
91 |
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* Revision 1.48 2003/03/10 14:51:27 warmerda |
92 |
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* DBFWrite* calls now return FALSE if they have to truncate |
93 |
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* |
94 |
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* Revision 1.47 2002/11/20 03:32:22 warmerda |
95 |
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* Ensure field name in DBFGetFieldIndex() is properly terminated. |
96 |
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* |
97 |
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* Revision 1.46 2002/10/09 13:10:21 warmerda |
98 |
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* Added check that width is positive. |
99 |
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* |
100 |
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* Revision 1.45 2002/09/29 00:00:08 warmerda |
101 |
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* added FTLogical and logical attribute read/write calls |
102 |
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* |
103 |
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* Revision 1.44 2002/05/07 13:46:11 warmerda |
104 |
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* Added DBFWriteAttributeDirectly(). |
105 |
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* |
106 |
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* Revision 1.43 2002/02/13 19:39:21 warmerda |
107 |
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* Fix casting issues in DBFCloneEmpty(). |
108 |
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* |
109 |
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* Revision 1.42 2002/01/15 14:36:07 warmerda |
110 |
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* updated email address |
111 |
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* |
112 |
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* Revision 1.41 2002/01/15 14:31:49 warmerda |
113 |
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* compute rather than copying nHeaderLength in DBFCloneEmpty() |
114 |
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* |
115 |
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* Revision 1.40 2002/01/09 04:32:35 warmerda |
116 |
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* fixed to read correct amount of header |
117 |
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* |
118 |
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* Revision 1.39 2001/12/11 22:41:03 warmerda |
119 |
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* improve io related error checking when reading header |
120 |
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* |
121 |
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* Revision 1.38 2001/11/28 16:07:31 warmerda |
122 |
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* Cleanup to avoid compiler warnings as suggested by Richard Hash. |
123 |
* |
* |
124 |
* Revision 1.37 2001/07/04 05:18:09 warmerda |
* Revision 1.37 2001/07/04 05:18:09 warmerda |
125 |
* do last fix properly |
* do last fix properly |
251 |
# define TRUE 1 |
# define TRUE 1 |
252 |
#endif |
#endif |
253 |
|
|
254 |
|
#if defined(_WIN32) || defined(_WIN64) |
255 |
|
# define MS_WINDOWS |
256 |
|
#endif |
257 |
|
|
258 |
static int nStringFieldLen = 0; |
static int nStringFieldLen = 0; |
259 |
static char * pszStringField = NULL; |
static char * pszStringField = NULL; |
260 |
|
|
261 |
/************************************************************************/ |
/************************************************************************/ |
262 |
|
/* DBFSet_atof_function() */ |
263 |
|
/* */ |
264 |
|
/* This makes it possible to initialise a different atof() function */ |
265 |
|
/* which might be necessary because the standard atof() might be */ |
266 |
|
/* sensitive to locale settings. */ |
267 |
|
/* */ |
268 |
|
/* If the calling application uses a locale with different decimal_point*/ |
269 |
|
/* it should better also give us a locale agnostic atof() function. */ |
270 |
|
/* */ |
271 |
|
/* As far as I can see from Python PEP331 and GNU libc documentation */ |
272 |
|
/* there is no standard for such a function yet. */ |
273 |
|
/* */ |
274 |
|
/* [email protected] 20060924 */ |
275 |
|
/************************************************************************/ |
276 |
|
|
277 |
|
static double (* atof_function)(const char *nptr) = &atof; |
278 |
|
|
279 |
|
void SHPAPI_CALL |
280 |
|
DBFSetatof_function( double (* new_atof_function)(const char *nptr)) |
281 |
|
{ |
282 |
|
atof_function = new_atof_function; |
283 |
|
} |
284 |
|
|
285 |
|
/************************************************************************/ |
286 |
/* SfRealloc() */ |
/* SfRealloc() */ |
287 |
/* */ |
/* */ |
288 |
/* A realloc cover function that will access a NULL pointer as */ |
/* A realloc cover function that will access a NULL pointer as */ |
326 |
|
|
327 |
abyHeader[0] = 0x03; /* memo field? - just copying */ |
abyHeader[0] = 0x03; /* memo field? - just copying */ |
328 |
|
|
329 |
/* date updated on close, record count preset at zero */ |
/* write out a dummy date */ |
330 |
|
abyHeader[1] = 95; /* YY */ |
331 |
|
abyHeader[2] = 7; /* MM */ |
332 |
|
abyHeader[3] = 26; /* DD */ |
333 |
|
|
334 |
|
/* record count preset at zero */ |
335 |
|
|
336 |
abyHeader[8] = psDBF->nHeaderLength % 256; |
abyHeader[8] = (unsigned char) (psDBF->nHeaderLength % 256); |
337 |
abyHeader[9] = psDBF->nHeaderLength / 256; |
abyHeader[9] = (unsigned char) (psDBF->nHeaderLength / 256); |
338 |
|
|
339 |
abyHeader[10] = psDBF->nRecordLength % 256; |
abyHeader[10] = (unsigned char) (psDBF->nRecordLength % 256); |
340 |
abyHeader[11] = psDBF->nRecordLength / 256; |
abyHeader[11] = (unsigned char) (psDBF->nRecordLength / 256); |
341 |
|
|
342 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
343 |
/* Write the initial 32 byte file header, and all the field */ |
/* Write the initial 32 byte file header, and all the field */ |
383 |
} |
} |
384 |
|
|
385 |
/************************************************************************/ |
/************************************************************************/ |
386 |
|
/* DBFUpdateHeader() */ |
387 |
|
/************************************************************************/ |
388 |
|
|
389 |
|
void SHPAPI_CALL |
390 |
|
DBFUpdateHeader( DBFHandle psDBF ) |
391 |
|
|
392 |
|
{ |
393 |
|
unsigned char abyFileHeader[32]; |
394 |
|
|
395 |
|
if( psDBF->bNoHeader ) |
396 |
|
DBFWriteHeader( psDBF ); |
397 |
|
|
398 |
|
DBFFlushRecord( psDBF ); |
399 |
|
|
400 |
|
fseek( psDBF->fp, 0, 0 ); |
401 |
|
fread( abyFileHeader, 32, 1, psDBF->fp ); |
402 |
|
|
403 |
|
abyFileHeader[4] = (unsigned char) (psDBF->nRecords % 256); |
404 |
|
abyFileHeader[5] = (unsigned char) ((psDBF->nRecords/256) % 256); |
405 |
|
abyFileHeader[6] = (unsigned char) ((psDBF->nRecords/(256*256)) % 256); |
406 |
|
abyFileHeader[7] = (unsigned char) ((psDBF->nRecords/(256*256*256)) % 256); |
407 |
|
|
408 |
|
fseek( psDBF->fp, 0, 0 ); |
409 |
|
fwrite( abyFileHeader, 32, 1, psDBF->fp ); |
410 |
|
|
411 |
|
fflush( psDBF->fp ); |
412 |
|
} |
413 |
|
|
414 |
|
/************************************************************************/ |
415 |
/* DBFOpen() */ |
/* DBFOpen() */ |
416 |
/* */ |
/* */ |
417 |
/* Open a .dbf file. */ |
/* Open a .dbf file. */ |
421 |
DBFOpen( const char * pszFilename, const char * pszAccess ) |
DBFOpen( const char * pszFilename, const char * pszAccess ) |
422 |
|
|
423 |
{ |
{ |
424 |
DBFHandle psDBF; |
FILE* fp; |
425 |
unsigned char *pabyBuf; |
int i; |
|
int nFields, nRecords, nHeadLen, nRecLen, iField, i; |
|
426 |
char *pszBasename, *pszFullname; |
char *pszBasename, *pszFullname; |
427 |
|
|
428 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
456 |
pszFullname = (char *) malloc(strlen(pszBasename) + 5); |
pszFullname = (char *) malloc(strlen(pszBasename) + 5); |
457 |
sprintf( pszFullname, "%s.dbf", pszBasename ); |
sprintf( pszFullname, "%s.dbf", pszBasename ); |
458 |
|
|
459 |
psDBF = (DBFHandle) calloc( 1, sizeof(DBFInfo) ); |
fp = fopen( pszFullname, pszAccess ); |
|
psDBF->fp = fopen( pszFullname, pszAccess ); |
|
460 |
|
|
461 |
if( psDBF->fp == NULL ) |
if( fp == NULL ) |
462 |
{ |
{ |
463 |
sprintf( pszFullname, "%s.DBF", pszBasename ); |
sprintf( pszFullname, "%s.DBF", pszBasename ); |
464 |
psDBF->fp = fopen(pszFullname, pszAccess ); |
fp = fopen(pszFullname, pszAccess ); |
465 |
} |
} |
466 |
|
|
467 |
free( pszBasename ); |
free( pszBasename ); |
468 |
free( pszFullname ); |
free( pszFullname ); |
469 |
|
|
470 |
if( psDBF->fp == NULL ) |
return DBFOpenEx( fp ); |
471 |
{ |
} |
472 |
free( psDBF ); |
|
473 |
|
|
474 |
|
|
475 |
|
/************************************************************************/ |
476 |
|
/* DBFOpenW() */ |
477 |
|
/* */ |
478 |
|
/* Open a .dbf file with a wide character filename */ |
479 |
|
/************************************************************************/ |
480 |
|
|
481 |
|
#ifdef SHPAPI_HAS_WIDE |
482 |
|
|
483 |
|
DBFHandle SHPAPI_CALL |
484 |
|
DBFOpenW( const wchar_t * pszFilename, const wchar_t * pszAccess ) |
485 |
|
|
486 |
|
{ |
487 |
|
FILE* fp; |
488 |
|
int i; |
489 |
|
wchar_t *pszBasename, *pszFullname; |
490 |
|
|
491 |
|
/* -------------------------------------------------------------------- */ |
492 |
|
/* We only allow the access strings "rb" and "r+". */ |
493 |
|
/* -------------------------------------------------------------------- */ |
494 |
|
if( wcscmp(pszAccess,L"r") != 0 && wcscmp(pszAccess,L"r+") != 0 |
495 |
|
&& wcscmp(pszAccess,L"rb") != 0 && wcscmp(pszAccess,L"rb+") != 0 |
496 |
|
&& wcscmp(pszAccess,L"r+b") != 0 ) |
497 |
return( NULL ); |
return( NULL ); |
498 |
|
|
499 |
|
if( wcscmp(pszAccess,L"r") == 0 ) |
500 |
|
pszAccess = L"rb"; |
501 |
|
|
502 |
|
if( wcscmp(pszAccess,L"r+") == 0 ) |
503 |
|
pszAccess = L"rb+"; |
504 |
|
|
505 |
|
/* -------------------------------------------------------------------- */ |
506 |
|
/* Compute the base (layer) name. If there is any extension */ |
507 |
|
/* on the passed in filename we will strip it off. */ |
508 |
|
/* -------------------------------------------------------------------- */ |
509 |
|
pszBasename = (wchar_t *) malloc(sizeof(wchar_t)*(wcslen(pszFilename)+5)); |
510 |
|
wcscpy( pszBasename, pszFilename ); |
511 |
|
for( i = wcslen(pszBasename)-1; |
512 |
|
i > 0 && pszBasename[i] != L'.' && pszBasename[i] != L'/' |
513 |
|
&& pszBasename[i] != L'\\'; |
514 |
|
i-- ) {} |
515 |
|
|
516 |
|
if( pszBasename[i] == L'.' ) |
517 |
|
pszBasename[i] = L'\0'; |
518 |
|
|
519 |
|
pszFullname = (wchar_t *) malloc(sizeof(wchar_t)*(wcslen(pszBasename) + 5)); |
520 |
|
swprintf( pszFullname, L"%s.dbf", pszBasename ); |
521 |
|
|
522 |
|
fp = _wfopen( pszFullname, pszAccess ); |
523 |
|
|
524 |
|
if( fp == NULL ) |
525 |
|
{ |
526 |
|
swprintf( pszFullname, L"%s.DBF", pszBasename ); |
527 |
|
fp = _wfopen(pszFullname, pszAccess ); |
528 |
} |
} |
529 |
|
|
530 |
|
free( pszBasename ); |
531 |
|
free( pszFullname ); |
532 |
|
|
533 |
|
return DBFOpenEx( fp ); |
534 |
|
} |
535 |
|
|
536 |
|
#endif |
537 |
|
|
538 |
|
|
539 |
|
|
540 |
|
/************************************************************************/ |
541 |
|
/* DBFOpenEx() */ |
542 |
|
/* */ |
543 |
|
/* Open a .dbf file from a freshly opened FILE */ |
544 |
|
/************************************************************************/ |
545 |
|
|
546 |
|
DBFHandle SHPAPI_CALL |
547 |
|
DBFOpenEx( FILE* fp ) |
548 |
|
|
549 |
|
{ |
550 |
|
unsigned char *pabyBuf; |
551 |
|
int nFields, nHeadLen, nRecLen, iField; |
552 |
|
DBFHandle psDBF = NULL; |
553 |
|
|
554 |
|
if( fp == NULL ) |
555 |
|
{ |
556 |
|
return( NULL ); |
557 |
|
} |
558 |
|
|
559 |
|
psDBF = (DBFHandle) calloc( 1, sizeof(DBFInfo) ); |
560 |
|
psDBF->fp = fp; |
561 |
|
|
562 |
psDBF->bNoHeader = FALSE; |
psDBF->bNoHeader = FALSE; |
563 |
psDBF->nCurrentRecord = -1; |
psDBF->nCurrentRecord = -1; |
567 |
/* Read Table Header info */ |
/* Read Table Header info */ |
568 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
569 |
pabyBuf = (unsigned char *) malloc(500); |
pabyBuf = (unsigned char *) malloc(500); |
570 |
fread( pabyBuf, 32, 1, psDBF->fp ); |
if( fread( pabyBuf, 32, 1, psDBF->fp ) != 1 ) |
571 |
|
{ |
572 |
|
fclose( psDBF->fp ); |
573 |
|
free( pabyBuf ); |
574 |
|
free( psDBF ); |
575 |
|
return NULL; |
576 |
|
} |
577 |
|
|
578 |
psDBF->nRecords = nRecords = |
psDBF->nRecords = |
579 |
pabyBuf[4] + pabyBuf[5]*256 + pabyBuf[6]*256*256 + pabyBuf[7]*256*256*256; |
pabyBuf[4] + pabyBuf[5]*256 + pabyBuf[6]*256*256 + pabyBuf[7]*256*256*256; |
580 |
|
|
581 |
psDBF->nHeaderLength = nHeadLen = pabyBuf[8] + pabyBuf[9]*256; |
psDBF->nHeaderLength = nHeadLen = pabyBuf[8] + pabyBuf[9]*256; |
593 |
psDBF->pszHeader = (char *) pabyBuf; |
psDBF->pszHeader = (char *) pabyBuf; |
594 |
|
|
595 |
fseek( psDBF->fp, 32, 0 ); |
fseek( psDBF->fp, 32, 0 ); |
596 |
fread( pabyBuf, nHeadLen, 1, psDBF->fp ); |
if( fread( pabyBuf, nHeadLen-32, 1, psDBF->fp ) != 1 ) |
597 |
|
{ |
598 |
|
fclose( psDBF->fp ); |
599 |
|
free( pabyBuf ); |
600 |
|
free( psDBF ); |
601 |
|
return NULL; |
602 |
|
} |
603 |
|
|
604 |
psDBF->panFieldOffset = (int *) malloc(sizeof(int) * nFields); |
psDBF->panFieldOffset = (int *) malloc(sizeof(int) * nFields); |
605 |
psDBF->panFieldSize = (int *) malloc(sizeof(int) * nFields); |
psDBF->panFieldSize = (int *) malloc(sizeof(int) * nFields); |
641 |
void SHPAPI_CALL |
void SHPAPI_CALL |
642 |
DBFClose(DBFHandle psDBF) |
DBFClose(DBFHandle psDBF) |
643 |
{ |
{ |
644 |
|
if( psDBF == NULL ) |
645 |
|
return; |
646 |
|
|
647 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
648 |
/* Write out header if not already written. */ |
/* Write out header if not already written. */ |
649 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
657 |
/* write access. */ |
/* write access. */ |
658 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
659 |
if( psDBF->bUpdated ) |
if( psDBF->bUpdated ) |
660 |
{ |
DBFUpdateHeader( psDBF ); |
|
unsigned char abyFileHeader[32]; |
|
|
|
|
|
fseek( psDBF->fp, 0, 0 ); |
|
|
fread( abyFileHeader, 32, 1, psDBF->fp ); |
|
|
|
|
|
abyFileHeader[1] = 95; /* YY */ |
|
|
abyFileHeader[2] = 7; /* MM */ |
|
|
abyFileHeader[3] = 26; /* DD */ |
|
|
|
|
|
abyFileHeader[4] = psDBF->nRecords % 256; |
|
|
abyFileHeader[5] = (psDBF->nRecords/256) % 256; |
|
|
abyFileHeader[6] = (psDBF->nRecords/(256*256)) % 256; |
|
|
abyFileHeader[7] = (psDBF->nRecords/(256*256*256)) % 256; |
|
|
|
|
|
fseek( psDBF->fp, 0, 0 ); |
|
|
fwrite( abyFileHeader, 32, 1, psDBF->fp ); |
|
|
} |
|
661 |
|
|
662 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
663 |
/* Close, and free resources. */ |
/* Close, and free resources. */ |
695 |
DBFCreate( const char * pszFilename ) |
DBFCreate( const char * pszFilename ) |
696 |
|
|
697 |
{ |
{ |
|
DBFHandle psDBF; |
|
698 |
FILE *fp; |
FILE *fp; |
699 |
char *pszFullname, *pszBasename; |
char *pszFullname, *pszBasename; |
700 |
int i; |
int i; |
733 |
|
|
734 |
free( pszFullname ); |
free( pszFullname ); |
735 |
|
|
736 |
|
return DBFCreateEx( fp ); |
737 |
|
} |
738 |
|
|
739 |
|
|
740 |
|
|
741 |
|
/************************************************************************/ |
742 |
|
/* DBFCreateW() */ |
743 |
|
/* */ |
744 |
|
/* Create a new .dbf file with a wide character filename */ |
745 |
|
/************************************************************************/ |
746 |
|
|
747 |
|
#ifdef SHPAPI_HAS_WIDE |
748 |
|
|
749 |
|
DBFHandle SHPAPI_CALL |
750 |
|
DBFCreateW( const wchar_t * pszFilename ) |
751 |
|
|
752 |
|
{ |
753 |
|
FILE *fp; |
754 |
|
wchar_t *pszFullname, *pszBasename; |
755 |
|
int i; |
756 |
|
|
757 |
|
/* -------------------------------------------------------------------- */ |
758 |
|
/* Compute the base (layer) name. If there is any extension */ |
759 |
|
/* on the passed in filename we will strip it off. */ |
760 |
|
/* -------------------------------------------------------------------- */ |
761 |
|
pszBasename = (wchar_t *) malloc(sizeof(wchar_t)*(wcslen(pszFilename)+5)); |
762 |
|
wcscpy( pszBasename, pszFilename ); |
763 |
|
for( i = wcslen(pszBasename)-1; |
764 |
|
i > 0 && pszBasename[i] != L'.' && pszBasename[i] != L'/' |
765 |
|
&& pszBasename[i] != L'\\'; |
766 |
|
i-- ) {} |
767 |
|
|
768 |
|
if( pszBasename[i] == L'.' ) |
769 |
|
pszBasename[i] = L'\0'; |
770 |
|
|
771 |
|
pszFullname = (wchar_t *) malloc(sizeof(wchar_t)*(wcslen(pszBasename) + 5)); |
772 |
|
swprintf( pszFullname, L"%s.dbf", pszBasename ); |
773 |
|
free( pszBasename ); |
774 |
|
|
775 |
|
/* -------------------------------------------------------------------- */ |
776 |
|
/* Create the file. */ |
777 |
|
/* -------------------------------------------------------------------- */ |
778 |
|
fp = _wfopen( pszFullname, L"wb" ); |
779 |
|
if( fp == NULL ) |
780 |
|
return( NULL ); |
781 |
|
|
782 |
|
fputc( 0, fp ); |
783 |
|
fclose( fp ); |
784 |
|
|
785 |
|
fp = _wfopen( pszFullname, L"rb+" ); |
786 |
|
if( fp == NULL ) |
787 |
|
return( NULL ); |
788 |
|
|
789 |
|
free( pszFullname ); |
790 |
|
|
791 |
|
return DBFCreateEx( fp ); |
792 |
|
} |
793 |
|
|
794 |
|
#endif |
795 |
|
|
796 |
|
|
797 |
|
/************************************************************************/ |
798 |
|
/* DBFCreateEx() */ |
799 |
|
/* */ |
800 |
|
/* Create a new .dbf file from a freshly created file */ |
801 |
|
/************************************************************************/ |
802 |
|
|
803 |
|
DBFHandle SHPAPI_CALL |
804 |
|
DBFCreateEx( FILE* fp ) |
805 |
|
|
806 |
|
{ |
807 |
|
DBFHandle psDBF; |
808 |
|
|
809 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
810 |
/* Create the info structure. */ |
/* Create the info structure. */ |
811 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
832 |
return( psDBF ); |
return( psDBF ); |
833 |
} |
} |
834 |
|
|
835 |
|
|
836 |
|
|
837 |
/************************************************************************/ |
/************************************************************************/ |
838 |
/* DBFAddField() */ |
/* DBFAddField() */ |
839 |
/* */ |
/* */ |
861 |
if( eType != FTDouble && nDecimals != 0 ) |
if( eType != FTDouble && nDecimals != 0 ) |
862 |
return( -1 ); |
return( -1 ); |
863 |
|
|
864 |
|
if( nWidth < 1 ) |
865 |
|
return -1; |
866 |
|
|
867 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
868 |
/* SfRealloc all the arrays larger to hold the additional field */ |
/* SfRealloc all the arrays larger to hold the additional field */ |
869 |
/* information. */ |
/* information. */ |
890 |
psDBF->panFieldSize[psDBF->nFields-1] = nWidth; |
psDBF->panFieldSize[psDBF->nFields-1] = nWidth; |
891 |
psDBF->panFieldDecimals[psDBF->nFields-1] = nDecimals; |
psDBF->panFieldDecimals[psDBF->nFields-1] = nDecimals; |
892 |
|
|
893 |
if( eType == FTString ) |
if( eType == FTLogical ) |
894 |
|
psDBF->pachFieldType[psDBF->nFields-1] = 'L'; |
895 |
|
else if( eType == FTString ) |
896 |
psDBF->pachFieldType[psDBF->nFields-1] = 'C'; |
psDBF->pachFieldType[psDBF->nFields-1] = 'C'; |
897 |
else |
else |
898 |
psDBF->pachFieldType[psDBF->nFields-1] = 'N'; |
psDBF->pachFieldType[psDBF->nFields-1] = 'N'; |
919 |
|
|
920 |
if( eType == FTString ) |
if( eType == FTString ) |
921 |
{ |
{ |
922 |
pszFInfo[16] = nWidth % 256; |
pszFInfo[16] = (unsigned char) (nWidth % 256); |
923 |
pszFInfo[17] = nWidth / 256; |
pszFInfo[17] = (unsigned char) (nWidth / 256); |
924 |
} |
} |
925 |
else |
else |
926 |
{ |
{ |
927 |
pszFInfo[16] = nWidth; |
pszFInfo[16] = (unsigned char) nWidth; |
928 |
pszFInfo[17] = nDecimals; |
pszFInfo[17] = (unsigned char) nDecimals; |
929 |
} |
} |
930 |
|
|
931 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
1015 |
/* -------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------- */ |
1016 |
if( chReqType == 'N' ) |
if( chReqType == 'N' ) |
1017 |
{ |
{ |
1018 |
dDoubleField = atof(pszStringField); |
dDoubleField = (*atof_function)(pszStringField); |
1019 |
|
|
1020 |
pReturnField = &dDoubleField; |
pReturnField = &dDoubleField; |
1021 |
} |
} |
1098 |
} |
} |
1099 |
|
|
1100 |
/************************************************************************/ |
/************************************************************************/ |
1101 |
|
/* DBFReadLogicalAttribute() */ |
1102 |
|
/* */ |
1103 |
|
/* Read a logical attribute. */ |
1104 |
|
/************************************************************************/ |
1105 |
|
|
1106 |
|
const char SHPAPI_CALL1(*) |
1107 |
|
DBFReadLogicalAttribute( DBFHandle psDBF, int iRecord, int iField ) |
1108 |
|
|
1109 |
|
{ |
1110 |
|
return( (const char *) DBFReadAttribute( psDBF, iRecord, iField, 'L' ) ); |
1111 |
|
} |
1112 |
|
|
1113 |
|
/************************************************************************/ |
1114 |
/* DBFIsAttributeNULL() */ |
/* DBFIsAttributeNULL() */ |
1115 |
/* */ |
/* */ |
1116 |
/* Return TRUE if value for field is NULL. */ |
/* Return TRUE if value for field is NULL. */ |
1126 |
|
|
1127 |
pszValue = DBFReadStringAttribute( psDBF, iRecord, iField ); |
pszValue = DBFReadStringAttribute( psDBF, iRecord, iField ); |
1128 |
|
|
1129 |
|
if( pszValue == NULL ) |
1130 |
|
return TRUE; |
1131 |
|
|
1132 |
switch(psDBF->pachFieldType[iField]) |
switch(psDBF->pachFieldType[iField]) |
1133 |
{ |
{ |
1134 |
case 'N': |
case 'N': |
1148 |
/* empty string fields are considered NULL */ |
/* empty string fields are considered NULL */ |
1149 |
return strlen(pszValue) == 0; |
return strlen(pszValue) == 0; |
1150 |
} |
} |
|
return FALSE; |
|
1151 |
} |
} |
1152 |
|
|
1153 |
/************************************************************************/ |
/************************************************************************/ |
1206 |
pszFieldName[i] = '\0'; |
pszFieldName[i] = '\0'; |
1207 |
} |
} |
1208 |
|
|
1209 |
if( psDBF->pachFieldType[iField] == 'N' |
if ( psDBF->pachFieldType[iField] == 'L' ) |
1210 |
|| psDBF->pachFieldType[iField] == 'F' |
return( FTLogical); |
1211 |
|| psDBF->pachFieldType[iField] == 'D' ) |
|
1212 |
|
else if( psDBF->pachFieldType[iField] == 'N' |
1213 |
|
|| psDBF->pachFieldType[iField] == 'F' |
1214 |
|
|| psDBF->pachFieldType[iField] == 'D' ) |
1215 |
{ |
{ |
1216 |
if( psDBF->panFieldDecimals[iField] > 0 ) |
if( psDBF->panFieldDecimals[iField] > 0 ) |
1217 |
return( FTDouble ); |
return( FTDouble ); |
1234 |
void * pValue ) |
void * pValue ) |
1235 |
|
|
1236 |
{ |
{ |
1237 |
int nRecordOffset, i, j; |
int nRecordOffset, i, j, nRetResult = TRUE; |
1238 |
unsigned char *pabyRec; |
unsigned char *pabyRec; |
1239 |
char szSField[400], szFormat[20]; |
char szSField[400], szFormat[20]; |
1240 |
|
|
1337 |
sprintf( szFormat, "%%%dd", nWidth ); |
sprintf( szFormat, "%%%dd", nWidth ); |
1338 |
sprintf(szSField, szFormat, (int) *((double *) pValue) ); |
sprintf(szSField, szFormat, (int) *((double *) pValue) ); |
1339 |
if( (int)strlen(szSField) > psDBF->panFieldSize[iField] ) |
if( (int)strlen(szSField) > psDBF->panFieldSize[iField] ) |
1340 |
|
{ |
1341 |
szSField[psDBF->panFieldSize[iField]] = '\0'; |
szSField[psDBF->panFieldSize[iField]] = '\0'; |
1342 |
|
nRetResult = FALSE; |
1343 |
|
} |
1344 |
|
|
1345 |
strncpy((char *) (pabyRec+psDBF->panFieldOffset[iField]), |
strncpy((char *) (pabyRec+psDBF->panFieldOffset[iField]), |
1346 |
szSField, strlen(szSField) ); |
szSField, strlen(szSField) ); |
1356 |
nWidth, psDBF->panFieldDecimals[iField] ); |
nWidth, psDBF->panFieldDecimals[iField] ); |
1357 |
sprintf(szSField, szFormat, *((double *) pValue) ); |
sprintf(szSField, szFormat, *((double *) pValue) ); |
1358 |
if( (int) strlen(szSField) > psDBF->panFieldSize[iField] ) |
if( (int) strlen(szSField) > psDBF->panFieldSize[iField] ) |
1359 |
|
{ |
1360 |
szSField[psDBF->panFieldSize[iField]] = '\0'; |
szSField[psDBF->panFieldSize[iField]] = '\0'; |
1361 |
|
nRetResult = FALSE; |
1362 |
|
} |
1363 |
strncpy((char *) (pabyRec+psDBF->panFieldOffset[iField]), |
strncpy((char *) (pabyRec+psDBF->panFieldOffset[iField]), |
1364 |
szSField, strlen(szSField) ); |
szSField, strlen(szSField) ); |
1365 |
} |
} |
1366 |
break; |
break; |
1367 |
|
|
1368 |
|
case 'L': |
1369 |
|
if (psDBF->panFieldSize[iField] >= 1 && |
1370 |
|
(*(char*)pValue == 'F' || *(char*)pValue == 'T')) |
1371 |
|
*(pabyRec+psDBF->panFieldOffset[iField]) = *(char*)pValue; |
1372 |
|
break; |
1373 |
|
|
1374 |
default: |
default: |
1375 |
if( (int) strlen((char *) pValue) > psDBF->panFieldSize[iField] ) |
if( (int) strlen((char *) pValue) > psDBF->panFieldSize[iField] ) |
1376 |
|
{ |
1377 |
j = psDBF->panFieldSize[iField]; |
j = psDBF->panFieldSize[iField]; |
1378 |
|
nRetResult = FALSE; |
1379 |
|
} |
1380 |
else |
else |
1381 |
{ |
{ |
1382 |
memset( pabyRec+psDBF->panFieldOffset[iField], ' ', |
memset( pabyRec+psDBF->panFieldOffset[iField], ' ', |
1389 |
break; |
break; |
1390 |
} |
} |
1391 |
|
|
1392 |
|
return( nRetResult ); |
1393 |
|
} |
1394 |
|
|
1395 |
|
/************************************************************************/ |
1396 |
|
/* DBFWriteAttributeDirectly() */ |
1397 |
|
/* */ |
1398 |
|
/* Write an attribute record to the file, but without any */ |
1399 |
|
/* reformatting based on type. The provided buffer is written */ |
1400 |
|
/* as is to the field position in the record. */ |
1401 |
|
/************************************************************************/ |
1402 |
|
|
1403 |
|
int SHPAPI_CALL |
1404 |
|
DBFWriteAttributeDirectly(DBFHandle psDBF, int hEntity, int iField, |
1405 |
|
void * pValue ) |
1406 |
|
|
1407 |
|
{ |
1408 |
|
int nRecordOffset, i, j; |
1409 |
|
unsigned char *pabyRec; |
1410 |
|
|
1411 |
|
/* -------------------------------------------------------------------- */ |
1412 |
|
/* Is this a valid record? */ |
1413 |
|
/* -------------------------------------------------------------------- */ |
1414 |
|
if( hEntity < 0 || hEntity > psDBF->nRecords ) |
1415 |
|
return( FALSE ); |
1416 |
|
|
1417 |
|
if( psDBF->bNoHeader ) |
1418 |
|
DBFWriteHeader(psDBF); |
1419 |
|
|
1420 |
|
/* -------------------------------------------------------------------- */ |
1421 |
|
/* Is this a brand new record? */ |
1422 |
|
/* -------------------------------------------------------------------- */ |
1423 |
|
if( hEntity == psDBF->nRecords ) |
1424 |
|
{ |
1425 |
|
DBFFlushRecord( psDBF ); |
1426 |
|
|
1427 |
|
psDBF->nRecords++; |
1428 |
|
for( i = 0; i < psDBF->nRecordLength; i++ ) |
1429 |
|
psDBF->pszCurrentRecord[i] = ' '; |
1430 |
|
|
1431 |
|
psDBF->nCurrentRecord = hEntity; |
1432 |
|
} |
1433 |
|
|
1434 |
|
/* -------------------------------------------------------------------- */ |
1435 |
|
/* Is this an existing record, but different than the last one */ |
1436 |
|
/* we accessed? */ |
1437 |
|
/* -------------------------------------------------------------------- */ |
1438 |
|
if( psDBF->nCurrentRecord != hEntity ) |
1439 |
|
{ |
1440 |
|
DBFFlushRecord( psDBF ); |
1441 |
|
|
1442 |
|
nRecordOffset = psDBF->nRecordLength * hEntity + psDBF->nHeaderLength; |
1443 |
|
|
1444 |
|
fseek( psDBF->fp, nRecordOffset, 0 ); |
1445 |
|
fread( psDBF->pszCurrentRecord, psDBF->nRecordLength, 1, psDBF->fp ); |
1446 |
|
|
1447 |
|
psDBF->nCurrentRecord = hEntity; |
1448 |
|
} |
1449 |
|
|
1450 |
|
pabyRec = (unsigned char *) psDBF->pszCurrentRecord; |
1451 |
|
|
1452 |
|
/* -------------------------------------------------------------------- */ |
1453 |
|
/* Assign all the record fields. */ |
1454 |
|
/* -------------------------------------------------------------------- */ |
1455 |
|
if( (int)strlen((char *) pValue) > psDBF->panFieldSize[iField] ) |
1456 |
|
j = psDBF->panFieldSize[iField]; |
1457 |
|
else |
1458 |
|
{ |
1459 |
|
memset( pabyRec+psDBF->panFieldOffset[iField], ' ', |
1460 |
|
psDBF->panFieldSize[iField] ); |
1461 |
|
j = strlen((char *) pValue); |
1462 |
|
} |
1463 |
|
|
1464 |
|
strncpy((char *) (pabyRec+psDBF->panFieldOffset[iField]), |
1465 |
|
(char *) pValue, j ); |
1466 |
|
|
1467 |
|
psDBF->bCurrentRecordModified = TRUE; |
1468 |
|
psDBF->bUpdated = TRUE; |
1469 |
|
|
1470 |
return( TRUE ); |
return( TRUE ); |
1471 |
} |
} |
1472 |
|
|
1528 |
} |
} |
1529 |
|
|
1530 |
/************************************************************************/ |
/************************************************************************/ |
1531 |
|
/* DBFWriteLogicalAttribute() */ |
1532 |
|
/* */ |
1533 |
|
/* Write a logical attribute. */ |
1534 |
|
/************************************************************************/ |
1535 |
|
|
1536 |
|
int SHPAPI_CALL |
1537 |
|
DBFWriteLogicalAttribute( DBFHandle psDBF, int iRecord, int iField, |
1538 |
|
const char lValue) |
1539 |
|
|
1540 |
|
{ |
1541 |
|
return( DBFWriteAttribute( psDBF, iRecord, iField, (void *) (&lValue) ) ); |
1542 |
|
} |
1543 |
|
|
1544 |
|
/************************************************************************/ |
1545 |
/* DBFWriteTuple() */ |
/* DBFWriteTuple() */ |
1546 |
/* */ |
/* */ |
1547 |
/* Write an attribute record to the file. */ |
/* Write an attribute record to the file. */ |
1661 |
DBFHandle newDBF; |
DBFHandle newDBF; |
1662 |
|
|
1663 |
newDBF = DBFCreate ( pszFilename ); |
newDBF = DBFCreate ( pszFilename ); |
1664 |
|
if ( newDBF == NULL ) return ( NULL ); |
1665 |
|
|
1666 |
|
DBFCloneEmptyEx( psDBF, newDBF ); |
1667 |
|
|
1668 |
|
DBFClose( newDBF ); |
1669 |
|
newDBF = DBFOpen ( pszFilename, "rb+" ); |
1670 |
|
|
1671 |
|
return ( newDBF ); |
1672 |
|
} |
1673 |
|
|
1674 |
|
|
1675 |
|
|
1676 |
|
|
1677 |
|
/************************************************************************/ |
1678 |
|
/* DBFCloneEmptyW */ |
1679 |
|
/* */ |
1680 |
|
/* Read one of the attribute fields of a record. */ |
1681 |
|
/************************************************************************/ |
1682 |
|
|
1683 |
|
#ifdef SHPAPI_HAS_WIDE |
1684 |
|
|
1685 |
|
DBFHandle SHPAPI_CALL |
1686 |
|
DBFCloneEmptyW(DBFHandle psDBF, const wchar_t * pszFilename ) |
1687 |
|
{ |
1688 |
|
DBFHandle newDBF; |
1689 |
|
|
1690 |
|
newDBF = DBFCreateW ( pszFilename ); |
1691 |
|
if ( newDBF == NULL ) return ( NULL ); |
1692 |
|
|
1693 |
|
DBFCloneEmptyEx( psDBF, newDBF ); |
1694 |
|
|
1695 |
|
DBFClose( newDBF ); |
1696 |
|
newDBF = DBFOpenW ( pszFilename, L"rb+" ); |
1697 |
|
|
1698 |
|
return ( newDBF ); |
1699 |
|
} |
1700 |
|
|
1701 |
|
#endif |
1702 |
|
|
1703 |
|
/************************************************************************/ |
1704 |
|
/* DBFCloneEmptyEx() */ |
1705 |
|
/* */ |
1706 |
|
/* Read one of the attribute fields of a record. */ |
1707 |
|
/************************************************************************/ |
1708 |
|
|
1709 |
|
void SHPAPI_CALL |
1710 |
|
DBFCloneEmptyEx(DBFHandle psDBF, DBFHandle newDBF) |
1711 |
|
{ |
1712 |
if ( newDBF == NULL ) return ( NULL ); |
if ( newDBF == NULL ) return ( NULL ); |
1713 |
|
|
1714 |
newDBF->pszHeader = (void *) malloc ( 32 * psDBF->nFields ); |
newDBF->pszHeader = (char *) malloc ( 32 * psDBF->nFields ); |
1715 |
memcpy ( newDBF->pszHeader, psDBF->pszHeader, 32 * psDBF->nFields ); |
memcpy ( newDBF->pszHeader, psDBF->pszHeader, 32 * psDBF->nFields ); |
1716 |
|
|
1717 |
newDBF->nFields = psDBF->nFields; |
newDBF->nFields = psDBF->nFields; |
1718 |
newDBF->nRecordLength = psDBF->nRecordLength; |
newDBF->nRecordLength = psDBF->nRecordLength; |
1719 |
newDBF->nHeaderLength = psDBF->nHeaderLength; |
newDBF->nHeaderLength = 32 * (psDBF->nFields+1); |
1720 |
|
|
1721 |
newDBF->panFieldOffset = (void *) malloc ( sizeof(int) * psDBF->nFields ); |
newDBF->panFieldOffset = (int *) malloc ( sizeof(int) * psDBF->nFields ); |
1722 |
memcpy ( newDBF->panFieldOffset, psDBF->panFieldOffset, sizeof(int) * psDBF->nFields ); |
memcpy ( newDBF->panFieldOffset, psDBF->panFieldOffset, sizeof(int) * psDBF->nFields ); |
1723 |
newDBF->panFieldSize = (void *) malloc ( sizeof(int) * psDBF->nFields ); |
newDBF->panFieldSize = (int *) malloc ( sizeof(int) * psDBF->nFields ); |
1724 |
memcpy ( newDBF->panFieldSize, psDBF->panFieldSize, sizeof(int) * psDBF->nFields ); |
memcpy ( newDBF->panFieldSize, psDBF->panFieldSize, sizeof(int) * psDBF->nFields ); |
1725 |
newDBF->panFieldDecimals = (void *) malloc ( sizeof(int) * psDBF->nFields ); |
newDBF->panFieldDecimals = (int *) malloc ( sizeof(int) * psDBF->nFields ); |
1726 |
memcpy ( newDBF->panFieldDecimals, psDBF->panFieldDecimals, sizeof(int) * psDBF->nFields ); |
memcpy ( newDBF->panFieldDecimals, psDBF->panFieldDecimals, sizeof(int) * psDBF->nFields ); |
1727 |
newDBF->pachFieldType = (void *) malloc ( sizeof(int) * psDBF->nFields ); |
newDBF->pachFieldType = (char *) malloc ( sizeof(int) * psDBF->nFields ); |
1728 |
memcpy ( newDBF->pachFieldType, psDBF->pachFieldType, sizeof(int) * psDBF->nFields ); |
memcpy ( newDBF->pachFieldType, psDBF->pachFieldType, sizeof(int) * psDBF->nFields ); |
1729 |
|
|
1730 |
newDBF->bNoHeader = TRUE; |
newDBF->bNoHeader = TRUE; |
1731 |
newDBF->bUpdated = TRUE; |
newDBF->bUpdated = TRUE; |
1732 |
|
|
1733 |
DBFWriteHeader ( newDBF ); |
DBFWriteHeader ( newDBF ); |
|
DBFClose ( newDBF ); |
|
|
|
|
|
newDBF = DBFOpen ( pszFilename, "rb+" ); |
|
|
|
|
|
return ( newDBF ); |
|
1734 |
} |
} |
1735 |
|
|
1736 |
/************************************************************************/ |
/************************************************************************/ |
1767 |
|
|
1768 |
while (++i < len) |
while (++i < len) |
1769 |
if (isalpha(string[i]) && islower(string[i])) |
if (isalpha(string[i]) && islower(string[i])) |
1770 |
string[i] = toupper ((int)string[i]); |
string[i] = (char) toupper ((int)string[i]); |
1771 |
} |
} |
1772 |
|
|
1773 |
/************************************************************************/ |
/************************************************************************/ |
1786 |
int i; |
int i; |
1787 |
|
|
1788 |
strncpy(name1, pszFieldName,11); |
strncpy(name1, pszFieldName,11); |
1789 |
|
name1[11] = '\0'; |
1790 |
str_to_upper(name1); |
str_to_upper(name1); |
1791 |
|
|
1792 |
for( i = 0; i < DBFGetFieldCount(psDBF); i++ ) |
for( i = 0; i < DBFGetFieldCount(psDBF); i++ ) |
1800 |
} |
} |
1801 |
return(-1); |
return(-1); |
1802 |
} |
} |
|
|
|
|
/************************************************************************/ |
|
|
/* DBFCommit() */ |
|
|
/* */ |
|
|
/* Write any changes made into the file. */ |
|
|
/* */ |
|
|
/************************************************************************/ |
|
|
int SHPAPI_CALL |
|
|
DBFCommit( DBFHandle psDBF ) |
|
|
|
|
|
{ |
|
|
DBFFlushRecord( psDBF ); |
|
|
if (fflush( psDBF->fp ) == EOF) |
|
|
return FALSE; |
|
|
|
|
|
return TRUE; |
|
|
} |
|