Struct HwpxEncoder 

pub struct HwpxEncoder;

Encodes Core documents to HWPX format (ZIP + XML).

This is the reverse of crate::HwpxDecoder: it takes a validated document and an HwpxStyleStore and produces a valid HWPX archive.

Round-trip

use hwpforge_smithy_hwpx::{HwpxDecoder, HwpxEncoder};

let bytes = std::fs::read("input.hwpx").unwrap();
let result = HwpxDecoder::decode(&bytes).unwrap();
let validated = result.document.validate().unwrap();
let output = HwpxEncoder::encode(&validated, &result.style_store, &result.image_store).unwrap();
std::fs::write("output.hwpx", &output).unwrap();

Image Binary Support

The encoder embeds binary image data from ImageStore into BinData/ entries in the ZIP archive. Image paths in the document (e.g. "BinData/image1.png") are matched against the store keys. Images not found in the store are silently skipped (XML reference only, no binary data).

Implementations

impl HwpxEncoder

pub fn encode( document: &Document<Validated>, style_store: &HwpxStyleStore, image_store: &ImageStore, ) -> HwpxResult<Vec<u8>>

Encodes a validated document with its style store and images to HWPX bytes.

The returned bytes form a valid ZIP archive that can be written to a .hwpx file or decoded back with crate::HwpxDecoder.

Pipeline

1. Serialize HwpxStyleStore → header.xml
2. Serialize each section → section{N}.xml
3. Collect image binaries from ImageStore
4. Package into ZIP with metadata files + BinData/

Errors

• HwpxError::XmlSerialize if quick-xml serialization fails
• HwpxError::InvalidStructure if table nesting exceeds limits
• HwpxError::Zip if ZIP archive creation fails

pub fn encode_file( path: impl AsRef<Path>, document: &Document<Validated>, style_store: &HwpxStyleStore, image_store: &ImageStore, ) -> HwpxResult<()>

Encodes a validated document and writes it to a file.

Convenience wrapper around encode + std::fs::write.

Errors

Returns HwpxError::Io if the file cannot be written, or any error from encode.

Trait Implementations

impl Clone for HwpxEncoder

fn clone(&self) -> HwpxEncoder

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HwpxEncoder

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

Formats the value using the given formatter.

impl Copy for HwpxEncoder