#pragma once


enum filter_type {
  // FILTER_INCLUDE,  // unsupported for now
  FILTER_EXCLUDE,
};

// A subset of borg patterns
enum pattern_type {
  PATTERN_EQUAL,  // /str
  PATTERN_PREFIX,  // /str/**
  PATTERN_SUFFIX,  // **/str
  PATTERN_INFIX,  // **/str/**
};

struct filter_rule {
  enum filter_type ftype;
  enum pattern_type ptype;
  char *str;
  size_t len;  // length of str (strlen, but cached)
};

struct filter_rule parse_exclude_rule(const char *rule);

// The path must be relative to the tree root (and thus not start with a '/').
bool filter_rule_allows(const struct filter_rule rule, const char *path);

void filter_rule_debugdump(FILE *stream, const struct filter_rule rule);