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//
// files.h - Definitions of an API for loading files.
//
#ifndef FILES__H
#define FILES__H
#include "types.h"
#include <stdbool.h>
#include <stdio.h>
#include <unistd.h>
#define file_err(f, ...) do { fprint_line(stderr, f, __VA_ARGS__); exit(EXIT_FAILURE); } while(false)
#define MAX_CACHE_SIZE (1<<14)
typedef struct file_s {
struct file_s *next;
const char *filename;
char *mmapped, *allocated;
char **lines, *start, *end;
size_t nlines;
struct pat_s *pats;
struct {
size_t size, occupancy;
match_t **matches;
} cache;
} file_t;
__attribute__((nonnull(2)))
file_t *load_file(file_t **files, const char *filename);
__attribute__((format(printf,2,3)))
file_t *load_filef(file_t **files, const char *fmt, ...);
__attribute__((nonnull))
void slice_file(file_t *slice, file_t *src, const char *start, const char *end);
__attribute__((nonnull(3), returns_nonnull))
file_t *spoof_file(file_t **files, const char *filename, const char *text, ssize_t len);
__attribute__((nonnull))
void destroy_file(file_t **f);
__attribute__((pure, nonnull))
size_t get_line_number(file_t *f, const char *p);
__attribute__((pure, nonnull))
const char *get_line(file_t *f, size_t line_number);
__attribute__((nonnull(1,2,3), format(printf,5,6)))
void fprint_line(FILE *dest, file_t *f, const char *start, const char *end, const char *fmt, ...);
__attribute__((nonnull(1,3,4,5)))
bool cache_get(file_t *f, def_t *defs, const char *str, pat_t *pat, match_t **result);
__attribute__((nonnull(1,3,4)))
void cache_save(file_t *f, def_t *defs, const char *str, pat_t *pat, match_t *m);
__attribute__((nonnull))
void cache_prune(file_t *f, const char *start, const char *end);
__attribute__((nonnull))
void cache_destroy(file_t *f);
#endif
// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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