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Implement object mapping framework.

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This commit is contained in:
Michael R Sweet
2021-05-13 13:18:01 -04:00
parent 7cb4d0a557
commit 17f2cc213e
2 changed files with 109 additions and 2 deletions
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14
pdfio-private.h
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@ -135,7 +135,7 @@ typedef struct _pdfio_pair_s // Key/value pair
_pdfio_value_t value; // Value
} _pdfio_pair_t;
struct _pdfio_dict_s
struct _pdfio_dict_s // Dictionary
{
pdfio_file_t *pdf; // PDF file
size_t num_pairs, // Number of pairs in use
@ -143,6 +143,13 @@ struct _pdfio_dict_s
_pdfio_pair_t *pairs; // Array of pairs
};
typedef struct _pdfio_objmap_s // PDF object map
{
pdfio_obj_t *obj; // Object for this file
pdfio_file_t *src_pdf; // Source PDF file
size_t src_number; // Source object number
} _pdfio_objmap_t;
struct _pdfio_file_s // PDF file structure
{
char *filename; // Filename
@ -173,6 +180,9 @@ struct _pdfio_file_s // PDF file structure
size_t num_objs, // Number of objects
alloc_objs; // Allocated objects
pdfio_obj_t **objs; // Objects
size_t num_objmaps, // Number of object maps
alloc_objmaps; // Allocated object maps
_pdfio_objmap_t *objmaps; // Object maps
size_t num_pages, // Number of pages
alloc_pages; // Allocated pages
pdfio_obj_t **pages; // Pages
@ -230,9 +240,11 @@ extern pdfio_dict_t *_pdfioDictRead(pdfio_file_t *pdf, _pdfio_token_t *ts) PDFIO
extern bool _pdfioDictSetValue(pdfio_dict_t *dict, const char *key, _pdfio_value_t *value) PDFIO_INTERNAL;
extern bool _pdfioDictWrite(pdfio_dict_t *dict, off_t *length) PDFIO_INTERNAL;
extern bool _pdfioFileAddMappedObject(pdfio_file_t *pdf, pdfio_obj_t *dst_obj, pdfio_obj_t *src_obj) PDFIO_INTERNAL;
extern bool _pdfioFileConsume(pdfio_file_t *pdf, size_t bytes) PDFIO_INTERNAL;
extern bool _pdfioFileDefaultError(pdfio_file_t *pdf, const char *message, void *data) PDFIO_INTERNAL;
extern bool _pdfioFileError(pdfio_file_t *pdf, const char *format, ...) PDFIO_FORMAT(2,3) PDFIO_INTERNAL;
extern pdfio_obj_t *_pdfioFileFindMappedObject(pdfio_file_t *pdf, pdfio_file_t *src_pdf, size_t src_number) PDFIO_INTERNAL;
extern bool _pdfioFileFlush(pdfio_file_t *pdf) PDFIO_INTERNAL;
extern int _pdfioFileGetChar(pdfio_file_t *pdf) PDFIO_INTERNAL;
extern bool _pdfioFileGets(pdfio_file_t *pdf, char *buffer, size_t bufsize) PDFIO_INTERNAL;