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535b675e8a
## What changed Word stores paragraph indents (`w:ind` left/start, right/end, hanging, firstLine) in 16 signed bits and paragraph spacing (`w:spacing` before/after) in 16 unsigned bits. A file that writes a larger plain integer is read by Word modulo 2^16: `w:left="66256"` is a 720-twip (0.5") indent in Word. We read the full value, so such a paragraph was indented by about 46 inches and its text was pushed off the page. - `crates/docx/src/units.rs`: new `tw_i16` / `tw_u16` readers. A plain integer keeps its low 16 bits (two's complement for indents, so 66256 -> 720 and 65535 -> -1); values with a unit or a fraction read as before. - `crates/docx/src/read/props.rs` and `read/styles.rs` use them for `w:ind` and `w:spacing` before/after, in direct and style formatting. - In-range values read exactly as before. ## Testing - `crates/docx/tests/it/twips_wrap.rs`: synthetic documents with out-of-range indents and spacing in paragraph and style properties check the wrapped values; in-range values and values with units are unchanged. - Unit tests for the two readers; `cargo xtask ci` passes. Found by a real-file corpus comparison against Word's own PDFs: a file whose indents exceed 16 bits shows its text on the page in Word and off the page here. Co-authored-by: tpawley2001 <268951182+tpawley2001@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Co-authored-by: Martin Ball <martin.ball@ucscaregroup.co.uk>
48 lines
941 B
Rust
48 lines
941 B
Rust
mod alt_chunks;
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mod bidi;
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mod bidi_runs;
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mod border_lines;
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mod cell_margin_inheritance;
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mod char_units;
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mod citations;
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mod comment_save_cost;
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mod complex_script_inheritance;
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mod content_control_save_cost;
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mod content_controls;
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mod custom_xml;
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mod default_size;
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mod drawing_payload;
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mod east_asian_lang;
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mod east_asian_layout;
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mod emphasis_marks;
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mod fixtures;
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mod glossary;
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mod heading_levels;
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mod legacy_forms;
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mod ligatures;
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mod malformed;
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mod nested_block_controls;
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mod note_comments;
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mod passthrough;
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mod picture_links;
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mod positional_tabs;
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mod privacy;
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mod roundtrip;
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mod row_property_exceptions;
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mod run_props;
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mod section_form_protection;
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mod section_metadata_preservation;
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mod section_page_number_type;
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mod section_text_direction;
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mod section_valign;
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mod settings_merge;
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mod strict_drawings;
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mod text_alignment;
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mod text_boxes;
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mod toc_ranges;
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mod twips_wrap;
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mod undefined_style;
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mod vml_shapes;
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mod word_xml;
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mod wordml2003_write;
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