#pragma once
#include "base.h"
#include <stdio.h> // FILE cannot be forward declared

typedef enum {
  Readprefs_left_and_right = 0, // left and right will be set
  Readprefs_irrelevant,         // only left will be set
  Readprefs_buffer_too_small,   // neither will be set
  Readprefs_eof,                // "
  Readprefs_io_error,           // "
} Readprefs_result;

Readprefs_result prefs_read_line(FILE* file, char* buf, Usz bufsize,
                                 char** out_left, Usz* out_leftlen,
                                 char** out_right, Usz* out_rightlen);