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117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
//
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// Private header file for pdfio.
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//
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// Copyright © 2021 by Michael R Sweet.
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//
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// Licensed under Apache License v2.0. See the file "LICENSE" for more
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// information.
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//
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#ifndef PDFIO_PRIVATE_H
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# define PDFIO_PRIVATE_H
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//
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// Include necessary headers...
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//
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# include "pdfio.h"
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# include <stdarg.h>
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# include <fcntl.h>
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# include <unistd.h>
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# include <string.h>
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# include <ctype.h>
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//
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// Visibility and other annotations...
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//
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# if defined(__has_extension) || defined(__GNUC__)
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# define PDFIO_INTERNAL __attribute__ ((visibility("hidden")))
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# define PDFIO_PRIVATE __attribute__ ((visibility("default")))
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# define PDFIO_NONNULL(...) __attribute__ ((nonnull(__VA_ARGS__)))
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# define PDFIO_NORETURN __attribute__ ((noreturn))
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# else
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# define PDFIO_INTERNAL
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# define PDFIO_PRIVATE
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# define PDFIO_NONNULL(...)
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# define PDFIO_NORETURN
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# endif // __has_extension || __GNUC__
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//
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// Debug macro...
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//
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# ifdef DEBUG
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# define PDFIO_DEBUG(...) fprintf(stderr, __VA_ARGS__)
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# else
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# define PDFIO_DEBUG(...)
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# endif // DEBUG
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//
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// Types and constants...
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//
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struct _pdfio_file_s // PDF file structure
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{
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int fd; // File descriptor
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// Allocated data elements
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size_t num_arrays, // Number of arrays
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alloc_arrays; // Allocated arrays
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pdfio_array_t **arrays; // Arrays
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size_t num_dicts, // Number of dictionaries
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alloc_dicts; // Allocated dictionaries
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pdfio_dict_t **dicts; // Dictionaries
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size_t num_objs, // Number of objects
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alloc_objs; // Allocated objects
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pdfio_obj_t **objs; // Objects
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size_t num_strings, // Number of strings
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alloc_strings; // Allocated strings
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char **strings; // Nul-terminated strings
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};
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struct _pdfio_obj_s // Object
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{
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int number, // Number
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generation; // Generation
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off_t offset; // Offset in file
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size_t length; // Length
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pdfio_dict_t *dict; // Dictionary
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};
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typedef struct _pdfio_value_s // Value structure
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{
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pdfio_valtype_t type; // Type of value
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union
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{
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pdfio_array_t *array; // Array value
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bool boolean; // Boolean value
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time_t date; // Date/time value
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pdfio_dict_t *dict; // Dictionary value
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pdfio_obj_t *obj; // Indirect object (N G obj) value
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const char *name; // Name value
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float number; // Number value
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const char *string; // String value
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} value; // Value union
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} _pdfio_value_t;
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//
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// Functions...
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//
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extern void _pdfioArrayDelete(pdfio_array_t *a) PDFIO_INTERNAL;
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extern _pdfio_value_t *_pdfioArrayGetValue(pdfio_array_t *a, size_t n) PDFIO_INTERNAL;
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extern void _pdfioDictDelete(pdfio_dict_t *dict) PDFIO_INTERNAL;
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extern void _pdfioFileDelete(pdfio_file_t *file) PDFIO_INTERNAL;
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extern void _pdfioObjDelete(pdfio_obj_t *obj) PDFIO_INTERNAL;
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extern void _pdfioStreamDelete(pdfio_stream_t *obj) PDFIO_INTERNAL;
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extern bool _pdfioStringIsAllocated(pdfio_file_t *pdf, const char *s) PDFIO_INTERNAL;
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extern void _pdfioValueDelete(_pdfio_value_t *v) PDFIO_INTERNAL;
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#endif // !PDFIO_PRIVATE_H
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