예제 #1
0
파일: hammer.c 프로젝트: ae-g-i-s/hammer
HParseResult* h_parse__m(HAllocator* mm__, const HParser* parser, const uint8_t* input, size_t length) {
    // Set up a parse state...
    HArena * arena = h_new_arena(mm__, 0);
    HParseState *parse_state = a_new_(arena, HParseState, 1);
    parse_state->cache = h_hashtable_new(arena, cache_key_equal, // key_equal_func
                                         cache_key_hash); // hash_func
    parse_state->input_stream.input = input;
    parse_state->input_stream.index = 0;
    parse_state->input_stream.bit_offset = 8; // bit big endian
    parse_state->input_stream.overrun = 0;
    parse_state->input_stream.endianness = BIT_BIG_ENDIAN | BYTE_BIG_ENDIAN;
    parse_state->input_stream.length = length;
    parse_state->lr_stack = h_slist_new(arena);
    parse_state->recursion_heads = h_hashtable_new(arena, cache_key_equal,
                                   cache_key_hash);
    parse_state->arena = arena;
    HParseResult *res = h_do_parse(parser, parse_state);
    h_slist_free(parse_state->lr_stack);
    h_hashtable_free(parse_state->recursion_heads);
    // tear down the parse state
    h_hashtable_free(parse_state->cache);
    if (!res)
        h_delete_arena(parse_state->arena);

    return res;
}
예제 #2
0
파일: packrat.c 프로젝트: ranok/hammer
HParseResult *h_packrat_parse(HAllocator* mm__, const HParser* parser, HInputStream *input_stream) {
  HArena * arena = h_new_arena(mm__, 0);
  HParseState *parse_state = a_new_(arena, HParseState, 1);
  parse_state->cache = h_hashtable_new(arena, cache_key_equal, // key_equal_func
				       cache_key_hash); // hash_func
  parse_state->input_stream = *input_stream;
  parse_state->lr_stack = h_slist_new(arena);
  parse_state->recursion_heads = h_hashtable_new(arena, pos_equal, pos_hash);
  parse_state->arena = arena;
  HParseResult *res = h_do_parse(parser, parse_state);
  h_slist_free(parse_state->lr_stack);
  h_hashtable_free(parse_state->recursion_heads);
  // tear down the parse state
  h_hashtable_free(parse_state->cache);
  if (!res)
    h_delete_arena(parse_state->arena);

  return res;
}