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#ifndef INPUT_H
#define INPUT_H
#include <stdio.h>
#include "charset.h"
#include "stdio16.h"
#include "dtd.h"
/* Typedefs */
typedef struct input_source *InputSource;
/* Input sources */
XML_API InputSource SourceFromFILE16(const char8 *description, FILE16 *file16);
XML_API InputSource SourceFromStream(const char8 *description, FILE *file);
XML_API InputSource EntityOpen(Entity e);
XML_API InputSource NewInputSource(Entity e, FILE16 *f16);
XML_API void SourceClose(InputSource source);
XML_API int SourceTell(InputSource s);
XML_API int SourceSeek(InputSource s, int byte_offset);
XML_API int SourceLineAndChar(InputSource s, int *linenum, int *charnum);
XML_API void SourcePosition(InputSource s, Entity *entity, int *byte_offset);
XML_API int get_with_fill(InputSource s);
XML_API void determine_character_encoding(InputSource s);
struct input_source {
Entity entity; /* The entity from which the source reads */
FILE16 *file16;
Char *line;
int line_alloc, line_length;
int next;
int seen_eoe;
int complicated_utf8_line;
int bytes_consumed;
int bytes_before_current_line;
int line_end_was_cr;
int line_number;
int not_read_yet;
struct input_source *parent;
int nextin;
int insize;
unsigned char inbuf[4096];
int seen_error;
char error_msg[100];
int cached_line_char; /* cached data for SourceTell */
int cached_line_byte;
};
/* EOE used to be -2, but that doesn't work if Char is signed char */
#define XEOE (-999)
/* Use SUB (ctl-Z) for an illegal character */
#define BADCHAR 26
#define at_eol(s) ((s)->next == (s)->line_length)
#define get(s) (at_eol(s) ? get_with_fill(s) : (s)->line[(s)->next++])
#define unget(s) ((s)->seen_eoe ? (s)->seen_eoe= 0 : (s)->next--)
#endif /* INPUT_H */
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