#ifndef source_h
#define source_h
#include <stddef.h>

typedef struct source source_t;
typedef struct {
  int line; int col; size_t idx;
} pos_t;

source_t *source_alloc_from_file(char* file_name);

// takes ownership of the file contents string.
source_t *source_alloc(const char* file_name, char* contents);

pos_t source_next_pos(source_t *source, pos_t pos);

void source_print_pos(source_t *source, pos_t pos);

void source_print_line(source_t *source, pos_t pos, int highlight_len);

const char* source_contents_from(source_t* source, pos_t pos);

void source_dealloc(source_t* source);
#endif