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nostrdb/blocks: add note block iterator

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This adds an api that walks along and pulls compact note block data out of
nostrdb.

Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin
2023-12-28 13:54:22 -08:00
committed by Daniel D’Aquino
parent 6f9bd6c4f4
commit 034f2cc02f
8 changed files with 247 additions and 152 deletions
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35
nostrdb/src/nostrdb.h
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@@ -20,7 +20,8 @@
struct ndb_json_parser;
struct ndb;
struct ndb_note_blocks;
struct ndb_blocks;
struct ndb_block;
struct ndb_note;
struct ndb_tag;
struct ndb_tags;
@@ -198,12 +199,6 @@ struct ndb_builder {
struct ndb_tag *current_tag;
};
/*
struct ndb_block_iterator {
struct note_block block;
};
*/
struct ndb_iterator {
struct ndb_note *note;
struct ndb_tag *tag;
@@ -394,8 +389,30 @@ enum ndb_common_kind ndb_kind_to_common_kind(int kind);
// CONTENT PARSER
int ndb_parse_content(unsigned char *buf, int buf_size,
const char *content, int content_len,
struct ndb_note_blocks **blocks_p);
struct ndb_blocks **blocks_p);
//int ndb_blocks_iterate_next(struct ndb_block_iterator *iter);
// BLOCKS
enum ndb_block_type {
BLOCK_HASHTAG = 1,
BLOCK_TEXT = 2,
BLOCK_MENTION_INDEX = 3,
BLOCK_MENTION_BECH32 = 4,
BLOCK_URL = 5,
BLOCK_INVOICE = 6,
};
#define NDB_NUM_BLOCK_TYPES 6
enum ndb_block_type ndb_block_type(struct ndb_blocks *blocks);
// BLOCK ITERATORS
struct ndb_block_iterator *ndb_blocks_iterate_start(const char *, struct ndb_blocks *);
void ndb_blocks_iterate_free(struct ndb_block_iterator *);
struct ndb_block *ndb_blocks_iterate_next(struct ndb_block_iterator *);
// STR BLOCKS
enum ndb_block_type ndb_get_block_type(struct ndb_block *block);
struct ndb_str_block *ndb_block_str(struct ndb_block *);
const char *ndb_str_block_ptr(struct ndb_str_block *);
uint32_t ndb_str_block_len(struct ndb_str_block *);
#endif