Struct MemoFile 

pub struct MemoFile { /* private fields */ }

Reader for a .dbt memo file paired with a .dbf table.

The reader owns its file handle and offers random-access reads of memo blocks by index. Block 0 is the header and is never returned as a payload.

Implementations

impl MemoFile

pub fn open<P: AsRef<Path>>(path: P) -> Result<Self, MemoError>

Opens a .dbt memo file and parses its header block.

Returns MemoError::UnsupportedVersion for dBase III (0x00) and any other unknown version byte. Only dBase IV (0x03) is supported.

pub fn set_encoding(&mut self, encoding: &'static Encoding)

Overrides the encoding used to transcode memo payloads.

pub fn block_size(&self) -> u32

Returns the block size declared in the header (default 512).

pub fn version(&self) -> MemoVersion

Returns the detected memo file dialect.

pub fn next_block(&self) -> u32

Returns the next-free block index, which is also one past the last valid block.

pub fn read_block(&mut self, index: u32) -> Result<String, MemoError>

Reads the memo payload stored in block index.

Returns MemoError::BlockIndexOutOfRange when index >= next_block.

Trait Implementations

impl Debug for MemoFile

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.