Read HWPX into the document model: HWP/HWPX → DOCX without LibreOffice - #13
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HwpxReader is the inverse of HwpxWriter: it reads an .hwpx package into HDocument, so HWPX (and HWP, which rhwp turns into HWPX first) can later be written as DOCX, HTML or EPUB without Hancom Office or LibreOffice. It is not registered as a converter yet; a reader registry picks it up by format id. It reads files from 한글, rhwp's export-hwpx and Filee's own writer: elements are matched by local name, hp:switch takes the exact HwpUnitChar branch (else halves the doubled hp:default / legacy values), and every IDRef is resolved through header.xml. Sections, page setup (NARROWLY = landscape), columns, headers/footers, automatic page numbers, complete paragraph and character shapes, outline headings, numberings and bullets, fields and hyperlinks, bookmarks, notes, tables (spans, widths, heights, borders, fills, header rows, captions, nesting), pictures, shapes, text boxes and groups are kept. Objects without a place in the model are skipped and counted; encrypted and DRM-wrapped files stop with a clear error. Tests write documents from the DOCX, Markdown, XLSX and PPTX readers as HWPX, read them back and compare, then write and read again for an identical model; they also read rhwp's HWPX, the template saved by 한글, a package in the style 한글 writes, and time a 100-page document. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
# Conflicts: # docs/ENGINES.md
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A reader for HWPX files saved by 한글, rhwp and Filee. HWP is converted to HWPX by rhwp first, so HWP → DOCX no longer needs LibreOffice.
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