From ec3e14f98b4999ec543ae20bfcbcbf84cea1a2e2 Mon Sep 17 00:00:00 2001
From: Martin Ball <98639962+benandez@users.noreply.github.com>
Date: Thu, 5 Nov 2026 23:35:12 +0100
Subject: [PATCH] MHT: preserve quoted MIME parameter boundaries (#5604)
Lands #5604.
Co-Authored-By: MMexicann <44814932+MMexicann@users.noreply.github.com>
---
ROADMAP.md | 4 +++-
crates/formats/src/mht.rs | 50 +++++++++++++++++++++++++++++++++++----
2 files changed, 49 insertions(+), 5 deletions(-)
diff --git a/ROADMAP.md b/ROADMAP.md
index 427a37698b..f39c407967 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -4,7 +4,7 @@
**Stage: alpha** · next: beta, ~15 points (60% → 75% ready for real work) and ~150–230 h away
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-05 · **Change:** trivial (progress log: CLI convert format options); previously trivial (MATH construction reuse, #3630); previously trivial (DOCX `w:adjustRightInd` is preserved through style resolution and ordered DOCX saves); previously trivial (per-page ink object lookups, #3614); previously trivial (progress log: ODT display settings removed); previously trivial (progress log: dialogs are modal except the five Word keeps modeless, and a press beside one shakes it, #3859); previously trivial (progress log: picture brightness, contrast and transparency, ODT element audit, ODT checked against 220 files from other applications, ODT display styles); previously trivial (progress log: the dialogs of the mirrored Arabic interface read right to left: label-and-field rows, tables (list columns, the Models table), tile galleries and the Add/Remove arrows follow the reading direction, through one `rtl::Table` helper that draws exactly as before in English; no ranked gap closed, readiness estimates unchanged); previously trivial (progress log: fonts that aren't installed are flagged in the font box and status bar); previously trivial (progress log: ODT sections inside text boxes); previously trivial (progress log: ODT definitions sharing a name, sections around tables, stacking order); previously trivial (progress log: ODT forms and indexes written as read); previously trivial (progress log: ODT table styles saved, WordCraft-origin documents checked in LibreOffice); previously trivial (progress log: ODT interpretation profile); previously trivial (progress log: ODT controls, custom shapes, in-line placement); previously trivial (progress log: ODT charts kept, frame outlines, header height); previously trivial (progress log: ODT header rows); previously trivial (progress log: ODT layout setting, padding, columns); previously trivial (progress log: ODT tables, header spacing, picture paragraphs); previously trivial (progress log: ODT round trips keep their page count); previously trivial (progress log: emphasis marks, SET fields, ODT page backgrounds and tables); previously trivial (progress log: ODT checked against LibreOffice's templates); previously trivial (progress log: ODT at ~90%); previously trivial (progress log: ODT read and written nearly whole); previously trivial (progress log: ODT text boxes); previously trivial (progress log: ODT layout settings); previously trivial (progress log: ODT character styles); previously trivial (progress log: ODT custom styles); previously trivial (progress log: ODT equations saved); previously trivial (progress log: ODT floating pictures); previously trivial (progress log: ODT paragraph borders); previously trivial (progress log: ODT heading numbering); previously trivial (progress log: ODT table borders); previously trivial (progress log: ODT heading styles); previously trivial (progress log: ODT tab stops); previously trivial (progress log: ODT character formatting); previously trivial (progress log: ODT lists); previously trivial (progress log: ODT comments); previously trivial (progress log: ODT footnotes and endnotes); previously trivial (progress log: ODT headers, footers and fields); previously trivial (progress log: ODT paragraph spacing); previously trivial (progress log: Options › Language redesign, CP4.3); previously trivial (progress log: the missing-pack bar on a fresh install, the caret's typing language, and the spelling menu heading in the interface language, CP4.3); previously trivial (progress log: Language pack languages in every language list, CP4.3); previously trivial (progress log: craft-proof pin, French elision and Valencian, CP4.3); previously trivial (progress log: a long comment's card and balloon stop at ten lines, #3382); previously trivial (progress log: a pasted text box story is charged for the formatting it copies); previously trivial (progress log: a .doc table row keeps one override per cell); previously trivial (progress log: a .doc file's sections find their paragraphs by index); previously minor (Arabic interface language with mirrored UI, #1195); previously trivial (progress log: Replace and Remove Table of Contents with Word's title above a section break, #4041); previously trivial (progress log: a password-protected file named on the command line asks for its password after the startup document is replaced, #5299); previously trivial (progress log: language-packs-2 published and pinned, 75 Language packs); previously trivial (progress log: language-packs-1 published and pinned, CP4.4); previously trivial (progress log: Language packs, CP4);; previously trivial (DOCX table rows and cells inside selected alternate-content branches survive open and repeated saves (#5219); broader corpus qualification and readiness estimates unchanged); previously trivial (progress log: a list inside a Markdown block quote stays quoted); previously trivial (progress log: arrowheads keep their kind, width and length and are drawn at Word's sizes); previously trivial (progress log: the line between columns for selected text, #5178); previously trivial (progress log: .doc standard font, #5066); previously trivial (progress log: a table row doesn't split off a picture that doesn't fit, #4272); previously trivial (progress log: a middle or bottom cell of a row split across pages lines up on the first page); previously trivial (progress log: tab leader dots spaced and placed as in Word); previously trivial (progress log: a list level above counts its first number at the first deeper item); previously trivial (progress log: paragraph side borders lie outside the text, #5036); previously trivial (progress log: a paragraph naming an undefined style is formatted as Normal, #5077); previously trivial (progress log: TOC page numbers as PAGEREF fields, #5097); previously trivial (progress log: Backstage keytips, #4960); previously trivial (Progress log: only the printer's PDF leaves out links; Save these pages as PDF keeps them, #4734); previously trivial (progress log: Chinese and Japanese text counts a word per character, #4547; previously trivial: aligned-copy review fixes retain the document axis through scrolling and include secondary selections (#4764)); previously trivial (connector rerouting indexes laid-out object positions once per batch (#3631); previously trivial (progress log: corporate authors in bibliographies, #4848); previously trivial (custom-property bookmark-link preservation, #4767); previously trivial (progress log: Table Properties follows the selection, #4857); previously trivial (Relative font-size commands preserve mixed sizes in the selection (#4903); existing button steps and one-point shortcuts are unchanged; readiness estimates unchanged); previously trivial (Arabic Backspace removes one combining mark and keeps its base letter (#4757); previously trivial (note conversion walks reference offsets and formatting runs together, #4750); previously trivial (DOCX comment-ID save lookups); previously trivial (progress log: RTF pictures stored as Windows or Enhanced Metafiles are imported, #4259); previously trivial (#4658 bounds nested Markdown reference-label work); previously trivial (HTML import keeps preformatted lines with CR or CRLF input newlines, #4810); previously trivial (progress log: Insert › Shapes icon grid, #4349); previously trivial (progress log: AutoCorrect Options with no document open, #4585); previously trivial (progress log: window fallback geometry and equation symbol tooltips); previously trivial (progress log: window titles omit NUL characters, #3634); previously trivial (Recipient labels continue across product-sized sheets instead of stopping after the first sheet (#4880)); previously trivial (progress log: Custom document properties dialog, #2982; previously trivial: progress log: View › New Window; previously trivial: progress log: interface translations come from storytold/craft-i18n through the `craft-i18n` crate; previously trivial: progress log: disabled-control reasons translated in every interface language, #2678; previously trivial: progress log: mail merge record navigation and record ranges for printing, #3028; previously trivial: selection bar for right-to-left paragraphs and table rows; previously trivial: group connector rerouting preserves rotated and flipped free or unresolved endpoints under nonuniform group scaling; readiness estimates unchanged; previously trivial: progress log: a word with no break opportunity in it no longer makes the layout quadratic, #3412; previously trivial: progress log: a relationship the markup names without the prefix is read as it wrote, and an ordinary `id` names no part; previously trivial: progress log: a document with many relationships opens in the time its part takes, and an id the text only mentions is not a reference, #3411; previously trivial: progress log: read only and comments-only protection grey out edits; previously trivial: progress log: an empty paragraph with a hidden mark shows nothing, not even its list number, #3982; previously trivial: progress log: "NaN" in the Font dialog's Size box no longer closes the app, #3663; previously trivial: progress log: a table cell span from a `.json` file no longer overflows, #3637; previously trivial: progress log: a click in the footer while editing the header moves there; previously trivial: explicit documents keep the editor when recovery discovery finishes; readable recovery controls; previously trivial: Slovenian interface catalog, 2,614 entries; previously trivial: Insert Table of Figures dialog for any caption label, #3013; previously trivial: progress log: Home › Underline drop-down, #2738; previously trivial: personal templates in File › New and Save as Word Template, #2852; previously trivial: progress log: the scrollbar page tip stays on one line, #3341; previously trivial: progress log: forms protection greys out the control buttons; previously trivial: progress log: a document with many content controls saves in the time the controls take, #13; previously trivial: progress log: Word signature lines kept on save; previously trivial: a Thai run with Latin finds one installed font covering it all on Linux too, #1549; previously trivial: progress log: closing the header returns to the body selection, #3331; previously trivial: progress log: saving to a NAS share mounted by GVFS, #3003; previously trivial: progress log: a picture dragged near the bottom of a page lands there, #3169; previously trivial: centred list labels after leading page breaks, #2964; previously trivial: progress log: inline pictures drag to an insertion cursor and stay inline, #2233, #2234; previously trivial: progress log: a text file saved over itself closes without asking, #2376; previously trivial: progress log: a text frame in the paragraph defaults frames nothing, #2360; previously trivial: fixed font inputs in four layout controls; previously trivial: typing no longer starts render threads on every repaint, #3027; previously trivial: a right, centre or decimal tab whose text doesn't fit, or a left tab past the right indent, goes to the next line with its text, #1840; previously trivial: progress log: banded rows shade as in Word, #3415; previously trivial: progress log: the table handles show while the caret is in the table, #2428; previously trivial: progress log: a click below a floating table reaches the text after it, #2038; previously trivial: progress log: Delete on selected table cells leaves one empty paragraph in each, #2802; previously trivial: progress log: lam-alef in exported PDFs extracts whole with fonts that draw it as two glyphs, #2310; previously trivial: Bullets and Numbering toggle off style-inherited lists at their effective level, including basedOn chains and numbered ListParagraph styles; other paragraphs and list definitions stay unchanged (related to #3459); previously trivial: Russian sorting keeps ё with е and recognises decomposed ё/й; previously trivial: progress log: a text box that keeps the keyboard no longer resets the input method every frame, #2986; previously trivial: progress log: recovery copies and .json files store pictures as base64, #586 follow-up; previously trivial: progress log: legacy menu keys, #1697; previously trivial: progress log: shape gradients and transparency, #1500; previously trivial: progress log: Focus fills the screen, and Full Screen View shows the pages alone, #1678; previously trivial: progress log: text above a float's anchor wraps around it, #2048; previously trivial: progress log: File › Recover follows the app theme, #3243; previously trivial: progress log: formatting toolbar with the text context menu, #2959; previously trivial: progress log: caret inside ligatures, #1974; previously trivial: text typed into a content control takes the control's formatting; localized placeholder styles recognised; previously trivial: forms protection keeps its content controls: no inserting, Properties or Remove Content Control; previously trivial: long navigation headings wrap onto further lines within the pane, #3015; previously trivial: clearing a no-match font query keeps the recent heading visible, #2068; previously trivial: a word after a slash wraps whole, like Word, #2963; previously trivial: progress log: a header-cell picture watermark sits behind the text, #1775; previously trivial: symbols keep their font when the text font changes, #2036; previously trivial: opening a DOCX no longer copies its pictures; previously trivial: Add Font imports every selected font file, #1789); previously trivial (RTF export writes sections (gap 19); previously trivial: ODT export writes sections (gap 19); previously trivial: Read Aloud speaks each sentence in its own language, #1843; previously trivial: hint-reliant CJK outlines; previously trivial: Ctrl+wheel zoom no longer scrolls the document, #1743; previously trivial: progress log: Turkish case mapping in AutoCorrect, #1923; previously trivial: a mouse drag on a table leaves the view where it is, #1738; previously trivial: progress log: Hebrew field results and smart quotes, #1670; previously trivial: Backspace removes a selected table, rows or columns, #1844; previously trivial: progress log: mixed Hebrew/Latin text keeps its order in Word, #1543; previously trivial: progress log: web typing in non-Latin text no longer repeats, #1480; previously trivial: progress log: font family caches bounded and math font lookups follow font changes, #1354; previously trivial: `-->` AutoCorrect replacement, #2223; previously trivial: numbered headings, #1793; previously trivial: Navigation Find exposes Results, #2096; previously trivial: progress log: Columns on selected text, #2024; previously trivial: progress log: legacy outline, shadow, emboss and imprint text effects drawn, #2534; previously trivial: progress log: Indonesian proofing, #498; previously trivial: progress log: DOCX glossary documents (building blocks); previously trivial: progress log: Read Mode keeps the keyboard and shows whole, unobscured columns, #1772); previously trivial: progress log: font list entries of tall-ascent fonts no longer cut off, #2570); previously trivial: progress log: Split Cells and Convert Text to Table dialogs follow the Word check, #2592; previously trivial: a new source's Tag is made like Word's, three letters of the author and two digits of the year with a number added when taken, and an edit keeps the Tag, #2094; previously trivial: Web Layout fills the window width, #1876; previously trivial: progress log: Different First Page headers reachable from page 1, #2826; previously trivial: Language dialog keeps inherited proofing language and no-proof choices (#2717); previously trivial: progress log: web preferences kept between visits, #2132; previously trivial: progress log: undrawable private-use list bullets show the level's default bullet, #1683; previously trivial: progress log: `w:eastAsianLayout` kept on save; previously trivial: table style editor formats every part, #714); previously trivial: VML freeforms read and kept on save; previously trivial: progress log: consistent preferred cell widths; previously trivial: multi-paragraph field instructions no longer add blank lines; previously trivial: page-break-only list paragraphs hide their labels; previously trivial: progress log: grouped `flowChartOr` shapes draw their circle and crossing spokes; previously trivial: progress log: copies keep their formatting in other programs, #1523; previously trivial: progress log: privacy options on save, #1062; previously trivial: progress log: equation pictures in theme colours on Windows, #1002; previously trivial: symbol fonts, #776; previously trivial: the save prompt answers from the keyboard, #861; previously trivial: table column and row markers on the rulers, #700; previously trivial: table borders and the resize handle drag on the page, #217; previously trivial: formatting revisions landed, #41; previously trivial: Draw tab ink, #307, and Draw Table and Eraser, #303, landed: catalog 402/434; previously minor: readiness table with hours per audience; full number back to the additive weighted sum, 60%; mainstream and essentials numbers added; alpha gate checked; previously major: full re-measure against Word for Mac 16.113.4; progress docs restructured) · **Target:** Microsoft Word (Microsoft 365) for Mac 16.113.4
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-05 · **Change:** trivial (progress log: MHT quoted MIME parameters); previously trivial (progress log: CLI convert format options); previously trivial (MATH construction reuse, #3630); previously trivial (DOCX `w:adjustRightInd` is preserved through style resolution and ordered DOCX saves); previously trivial (per-page ink object lookups, #3614); previously trivial (progress log: ODT display settings removed); previously trivial (progress log: dialogs are modal except the five Word keeps modeless, and a press beside one shakes it, #3859); previously trivial (progress log: picture brightness, contrast and transparency, ODT element audit, ODT checked against 220 files from other applications, ODT display styles); previously trivial (progress log: the dialogs of the mirrored Arabic interface read right to left: label-and-field rows, tables (list columns, the Models table), tile galleries and the Add/Remove arrows follow the reading direction, through one `rtl::Table` helper that draws exactly as before in English; no ranked gap closed, readiness estimates unchanged); previously trivial (progress log: fonts that aren't installed are flagged in the font box and status bar); previously trivial (progress log: ODT sections inside text boxes); previously trivial (progress log: ODT definitions sharing a name, sections around tables, stacking order); previously trivial (progress log: ODT forms and indexes written as read); previously trivial (progress log: ODT table styles saved, WordCraft-origin documents checked in LibreOffice); previously trivial (progress log: ODT interpretation profile); previously trivial (progress log: ODT controls, custom shapes, in-line placement); previously trivial (progress log: ODT charts kept, frame outlines, header height); previously trivial (progress log: ODT header rows); previously trivial (progress log: ODT layout setting, padding, columns); previously trivial (progress log: ODT tables, header spacing, picture paragraphs); previously trivial (progress log: ODT round trips keep their page count); previously trivial (progress log: emphasis marks, SET fields, ODT page backgrounds and tables); previously trivial (progress log: ODT checked against LibreOffice's templates); previously trivial (progress log: ODT at ~90%); previously trivial (progress log: ODT read and written nearly whole); previously trivial (progress log: ODT text boxes); previously trivial (progress log: ODT layout settings); previously trivial (progress log: ODT character styles); previously trivial (progress log: ODT custom styles); previously trivial (progress log: ODT equations saved); previously trivial (progress log: ODT floating pictures); previously trivial (progress log: ODT paragraph borders); previously trivial (progress log: ODT heading numbering); previously trivial (progress log: ODT table borders); previously trivial (progress log: ODT heading styles); previously trivial (progress log: ODT tab stops); previously trivial (progress log: ODT character formatting); previously trivial (progress log: ODT lists); previously trivial (progress log: ODT comments); previously trivial (progress log: ODT footnotes and endnotes); previously trivial (progress log: ODT headers, footers and fields); previously trivial (progress log: ODT paragraph spacing); previously trivial (progress log: Options › Language redesign, CP4.3); previously trivial (progress log: the missing-pack bar on a fresh install, the caret's typing language, and the spelling menu heading in the interface language, CP4.3); previously trivial (progress log: Language pack languages in every language list, CP4.3); previously trivial (progress log: craft-proof pin, French elision and Valencian, CP4.3); previously trivial (progress log: a long comment's card and balloon stop at ten lines, #3382); previously trivial (progress log: a pasted text box story is charged for the formatting it copies); previously trivial (progress log: a .doc table row keeps one override per cell); previously trivial (progress log: a .doc file's sections find their paragraphs by index); previously minor (Arabic interface language with mirrored UI, #1195); previously trivial (progress log: Replace and Remove Table of Contents with Word's title above a section break, #4041); previously trivial (progress log: a password-protected file named on the command line asks for its password after the startup document is replaced, #5299); previously trivial (progress log: language-packs-2 published and pinned, 75 Language packs); previously trivial (progress log: language-packs-1 published and pinned, CP4.4); previously trivial (progress log: Language packs, CP4);; previously trivial (DOCX table rows and cells inside selected alternate-content branches survive open and repeated saves (#5219); broader corpus qualification and readiness estimates unchanged); previously trivial (progress log: a list inside a Markdown block quote stays quoted); previously trivial (progress log: arrowheads keep their kind, width and length and are drawn at Word's sizes); previously trivial (progress log: the line between columns for selected text, #5178); previously trivial (progress log: .doc standard font, #5066); previously trivial (progress log: a table row doesn't split off a picture that doesn't fit, #4272); previously trivial (progress log: a middle or bottom cell of a row split across pages lines up on the first page); previously trivial (progress log: tab leader dots spaced and placed as in Word); previously trivial (progress log: a list level above counts its first number at the first deeper item); previously trivial (progress log: paragraph side borders lie outside the text, #5036); previously trivial (progress log: a paragraph naming an undefined style is formatted as Normal, #5077); previously trivial (progress log: TOC page numbers as PAGEREF fields, #5097); previously trivial (progress log: Backstage keytips, #4960); previously trivial (Progress log: only the printer's PDF leaves out links; Save these pages as PDF keeps them, #4734); previously trivial (progress log: Chinese and Japanese text counts a word per character, #4547; previously trivial: aligned-copy review fixes retain the document axis through scrolling and include secondary selections (#4764)); previously trivial (connector rerouting indexes laid-out object positions once per batch (#3631); previously trivial (progress log: corporate authors in bibliographies, #4848); previously trivial (custom-property bookmark-link preservation, #4767); previously trivial (progress log: Table Properties follows the selection, #4857); previously trivial (Relative font-size commands preserve mixed sizes in the selection (#4903); existing button steps and one-point shortcuts are unchanged; readiness estimates unchanged); previously trivial (Arabic Backspace removes one combining mark and keeps its base letter (#4757); previously trivial (note conversion walks reference offsets and formatting runs together, #4750); previously trivial (DOCX comment-ID save lookups); previously trivial (progress log: RTF pictures stored as Windows or Enhanced Metafiles are imported, #4259); previously trivial (#4658 bounds nested Markdown reference-label work); previously trivial (HTML import keeps preformatted lines with CR or CRLF input newlines, #4810); previously trivial (progress log: Insert › Shapes icon grid, #4349); previously trivial (progress log: AutoCorrect Options with no document open, #4585); previously trivial (progress log: window fallback geometry and equation symbol tooltips); previously trivial (progress log: window titles omit NUL characters, #3634); previously trivial (Recipient labels continue across product-sized sheets instead of stopping after the first sheet (#4880)); previously trivial (progress log: Custom document properties dialog, #2982; previously trivial: progress log: View › New Window; previously trivial: progress log: interface translations come from storytold/craft-i18n through the `craft-i18n` crate; previously trivial: progress log: disabled-control reasons translated in every interface language, #2678; previously trivial: progress log: mail merge record navigation and record ranges for printing, #3028; previously trivial: selection bar for right-to-left paragraphs and table rows; previously trivial: group connector rerouting preserves rotated and flipped free or unresolved endpoints under nonuniform group scaling; readiness estimates unchanged; previously trivial: progress log: a word with no break opportunity in it no longer makes the layout quadratic, #3412; previously trivial: progress log: a relationship the markup names without the prefix is read as it wrote, and an ordinary `id` names no part; previously trivial: progress log: a document with many relationships opens in the time its part takes, and an id the text only mentions is not a reference, #3411; previously trivial: progress log: read only and comments-only protection grey out edits; previously trivial: progress log: an empty paragraph with a hidden mark shows nothing, not even its list number, #3982; previously trivial: progress log: "NaN" in the Font dialog's Size box no longer closes the app, #3663; previously trivial: progress log: a table cell span from a `.json` file no longer overflows, #3637; previously trivial: progress log: a click in the footer while editing the header moves there; previously trivial: explicit documents keep the editor when recovery discovery finishes; readable recovery controls; previously trivial: Slovenian interface catalog, 2,614 entries; previously trivial: Insert Table of Figures dialog for any caption label, #3013; previously trivial: progress log: Home › Underline drop-down, #2738; previously trivial: personal templates in File › New and Save as Word Template, #2852; previously trivial: progress log: the scrollbar page tip stays on one line, #3341; previously trivial: progress log: forms protection greys out the control buttons; previously trivial: progress log: a document with many content controls saves in the time the controls take, #13; previously trivial: progress log: Word signature lines kept on save; previously trivial: a Thai run with Latin finds one installed font covering it all on Linux too, #1549; previously trivial: progress log: closing the header returns to the body selection, #3331; previously trivial: progress log: saving to a NAS share mounted by GVFS, #3003; previously trivial: progress log: a picture dragged near the bottom of a page lands there, #3169; previously trivial: centred list labels after leading page breaks, #2964; previously trivial: progress log: inline pictures drag to an insertion cursor and stay inline, #2233, #2234; previously trivial: progress log: a text file saved over itself closes without asking, #2376; previously trivial: progress log: a text frame in the paragraph defaults frames nothing, #2360; previously trivial: fixed font inputs in four layout controls; previously trivial: typing no longer starts render threads on every repaint, #3027; previously trivial: a right, centre or decimal tab whose text doesn't fit, or a left tab past the right indent, goes to the next line with its text, #1840; previously trivial: progress log: banded rows shade as in Word, #3415; previously trivial: progress log: the table handles show while the caret is in the table, #2428; previously trivial: progress log: a click below a floating table reaches the text after it, #2038; previously trivial: progress log: Delete on selected table cells leaves one empty paragraph in each, #2802; previously trivial: progress log: lam-alef in exported PDFs extracts whole with fonts that draw it as two glyphs, #2310; previously trivial: Bullets and Numbering toggle off style-inherited lists at their effective level, including basedOn chains and numbered ListParagraph styles; other paragraphs and list definitions stay unchanged (related to #3459); previously trivial: Russian sorting keeps ё with е and recognises decomposed ё/й; previously trivial: progress log: a text box that keeps the keyboard no longer resets the input method every frame, #2986; previously trivial: progress log: recovery copies and .json files store pictures as base64, #586 follow-up; previously trivial: progress log: legacy menu keys, #1697; previously trivial: progress log: shape gradients and transparency, #1500; previously trivial: progress log: Focus fills the screen, and Full Screen View shows the pages alone, #1678; previously trivial: progress log: text above a float's anchor wraps around it, #2048; previously trivial: progress log: File › Recover follows the app theme, #3243; previously trivial: progress log: formatting toolbar with the text context menu, #2959; previously trivial: progress log: caret inside ligatures, #1974; previously trivial: text typed into a content control takes the control's formatting; localized placeholder styles recognised; previously trivial: forms protection keeps its content controls: no inserting, Properties or Remove Content Control; previously trivial: long navigation headings wrap onto further lines within the pane, #3015; previously trivial: clearing a no-match font query keeps the recent heading visible, #2068; previously trivial: a word after a slash wraps whole, like Word, #2963; previously trivial: progress log: a header-cell picture watermark sits behind the text, #1775; previously trivial: symbols keep their font when the text font changes, #2036; previously trivial: opening a DOCX no longer copies its pictures; previously trivial: Add Font imports every selected font file, #1789); previously trivial (RTF export writes sections (gap 19); previously trivial: ODT export writes sections (gap 19); previously trivial: Read Aloud speaks each sentence in its own language, #1843; previously trivial: hint-reliant CJK outlines; previously trivial: Ctrl+wheel zoom no longer scrolls the document, #1743; previously trivial: progress log: Turkish case mapping in AutoCorrect, #1923; previously trivial: a mouse drag on a table leaves the view where it is, #1738; previously trivial: progress log: Hebrew field results and smart quotes, #1670; previously trivial: Backspace removes a selected table, rows or columns, #1844; previously trivial: progress log: mixed Hebrew/Latin text keeps its order in Word, #1543; previously trivial: progress log: web typing in non-Latin text no longer repeats, #1480; previously trivial: progress log: font family caches bounded and math font lookups follow font changes, #1354; previously trivial: `-->` AutoCorrect replacement, #2223; previously trivial: numbered headings, #1793; previously trivial: Navigation Find exposes Results, #2096; previously trivial: progress log: Columns on selected text, #2024; previously trivial: progress log: legacy outline, shadow, emboss and imprint text effects drawn, #2534; previously trivial: progress log: Indonesian proofing, #498; previously trivial: progress log: DOCX glossary documents (building blocks); previously trivial: progress log: Read Mode keeps the keyboard and shows whole, unobscured columns, #1772); previously trivial: progress log: font list entries of tall-ascent fonts no longer cut off, #2570); previously trivial: progress log: Split Cells and Convert Text to Table dialogs follow the Word check, #2592; previously trivial: a new source's Tag is made like Word's, three letters of the author and two digits of the year with a number added when taken, and an edit keeps the Tag, #2094; previously trivial: Web Layout fills the window width, #1876; previously trivial: progress log: Different First Page headers reachable from page 1, #2826; previously trivial: Language dialog keeps inherited proofing language and no-proof choices (#2717); previously trivial: progress log: web preferences kept between visits, #2132; previously trivial: progress log: undrawable private-use list bullets show the level's default bullet, #1683; previously trivial: progress log: `w:eastAsianLayout` kept on save; previously trivial: table style editor formats every part, #714); previously trivial: VML freeforms read and kept on save; previously trivial: progress log: consistent preferred cell widths; previously trivial: multi-paragraph field instructions no longer add blank lines; previously trivial: page-break-only list paragraphs hide their labels; previously trivial: progress log: grouped `flowChartOr` shapes draw their circle and crossing spokes; previously trivial: progress log: copies keep their formatting in other programs, #1523; previously trivial: progress log: privacy options on save, #1062; previously trivial: progress log: equation pictures in theme colours on Windows, #1002; previously trivial: symbol fonts, #776; previously trivial: the save prompt answers from the keyboard, #861; previously trivial: table column and row markers on the rulers, #700; previously trivial: table borders and the resize handle drag on the page, #217; previously trivial: formatting revisions landed, #41; previously trivial: Draw tab ink, #307, and Draw Table and Eraser, #303, landed: catalog 402/434; previously minor: readiness table with hours per audience; full number back to the additive weighted sum, 60%; mainstream and essentials numbers added; alpha gate checked; previously major: full re-measure against Word for Mac 16.113.4; progress docs restructured) · **Target:** Microsoft Word (Microsoft 365) for Mac 16.113.4
> **Printing update:** 2026-10-12 · direct desktop printing through craft-print; details below.
WordCraft aims for complete parity with Microsoft Word, then goes further on speed, openness and
@@ -140,6 +140,7 @@ Ranked, to beta (detail and remaining milestones in [docs/roadmap.md](docs/roadm
## Progress log
- 2026-11-04: CLI `convert` rejects a missing or repeated `--format` value before opening the input or writing output, matching the existing page/scale option checks. Readiness estimates unchanged.
+- 2026-11-04: MHT import keeps semicolons and escaped quotes inside quoted MIME parameters, so an unrelated parameter cannot supply a false multipart boundary and hide the document text. Readiness estimates unchanged.
- 2026-10-28: Ink replay, eraser picking, lasso selection and arrow-candidate discovery reuse the paragraph prefixes they have already scanned (#3614). Page item order, stroke geometry and saved data retain their behavior. This narrows the stability work; ink import fidelity, native pen input and broader corpus qualification remain open.
- 2026-11-04: OpenDocument files have no display settings any more (gap 19): File › Options › Advanced › OpenDocument files, `file.options` `odf`, `WORDCRAFT_ODF`, the LibreOffice style and custom values are gone. WordCraft makes one choice for each case the standard leaves open, the one the default made, and still follows what a file states ([docs/odf-interpretation.md](docs/odf-interpretation.md)).
@@ -778,6 +779,7 @@ MATH glyphs that reference the same construction now share its immutable variant
|---|---|---|
| 2026-11-05 | trivial | PR #4545: eligible cell floats retain in-bounds offsets and touch the outer cell edge only on overflow, ignoring wrap distances for object placement. Front-of-text, turned-cell and outside-cell opt-outs remain. Synthetic geometry controls; native front/behind-text parity remains unqualified. |
| 2026-11-04 | trivial | Progress log: CLI convert format options; readiness estimates unchanged |
+| 2026-11-04 | trivial | Progress log: MHT quoted MIME parameters; readiness estimates unchanged |
| 2026-11-05 | trivial | DOCX paragraph `w:adjustRightInd` is preserved with true, false and absent values; OOXML properties follow schema order. Grid layout remains open. |
| 2026-10-28 | trivial | Per-page ink object lookups, #3614. Drawing order, geometry and saved data retain their behavior; no readiness estimate change |
| 2026-10-28 | trivial | Shared MATH construction records reuse variants and assembly data without changing glyph mappings or existing limits (#3630); readiness estimates unchanged |
diff --git a/crates/formats/src/mht.rs b/crates/formats/src/mht.rs
index c21c98d9aa..3ab3d91e36 100644
--- a/crates/formats/src/mht.rs
+++ b/crates/formats/src/mht.rs
@@ -213,10 +213,32 @@ fn header<'a>(h: &'a [(String, String)], name: &str) -> Option<&'a str> {
/// A `; name=value` parameter of a header value (quotes removed), name case-insensitive.
fn param<'a>(value: &'a str, name: &str) -> Option<&'a str> {
- value.split(';').skip(1).find_map(|p| {
- let (k, v) = p.split_once('=')?;
- k.trim().eq_ignore_ascii_case(name).then(|| v.trim().trim_matches('"'))
- })
+ // Split outside quoted strings and comments (RFC 2045 §5.1, RFC 822 §3.3).
+ let mut quoted = false;
+ let mut escaped = false;
+ let mut comment_depth = 0usize;
+ value
+ .split(|c| {
+ if escaped {
+ escaped = false;
+ } else if (quoted || comment_depth > 0) && c == '\\' {
+ escaped = true;
+ } else if !quoted && c == '(' {
+ comment_depth = comment_depth.saturating_add(1);
+ } else if comment_depth > 0 {
+ if c == ')' {
+ comment_depth -= 1;
+ }
+ } else if c == '"' {
+ quoted = !quoted;
+ }
+ c == ';' && !quoted && comment_depth == 0
+ })
+ .skip(1)
+ .find_map(|p| {
+ let (k, v) = p.split_once('=')?;
+ k.trim().eq_ignore_ascii_case(name).then(|| v.trim().trim_matches('"'))
+ })
}
/// Gather the leaf parts of a (possibly multipart) entity.
@@ -400,6 +422,26 @@ mod tests {
}
}
+ #[test]
+ fn quoted_parameters_do_not_supply_a_false_boundary() {
+ for name in [r#"name="notes; boundary=wrong""#, r#"name="notes\"; boundary=wrong""#, r#"name="notes (10\" screen; boundary=wrong""#] {
+ let page = "Content-Type: text/html\r\n\r\nKept content
";
+ let message = message(page).replace("multipart/related; boundary=", &format!("multipart/related; {name}; boundary="));
+ let doc = import(message.as_bytes());
+ assert_eq!(doc.plain_text(wordcraft_doc::StoryRef::Body).trim(), "Kept content", "{name}");
+ }
+ }
+
+ #[test]
+ fn quotes_in_comments_do_not_hide_the_boundary() {
+ for comment in [r#"(10" screen)"#, r#"(outer (10" screen); boundary=wrong)"#, r#"(10\)" screen; boundary=wrong)"#] {
+ let page = "Content-Type: text/html\r\n\r\nKept content
";
+ let message = message(page).replace("multipart/related; boundary=", &format!("multipart/related {comment}; boundary="));
+ let doc = import(message.as_bytes());
+ assert_eq!(doc.plain_text(wordcraft_doc::StoryRef::Body).trim(), "Kept content", "{comment}");
+ }
+ }
+
#[test]
fn the_part_charset_decides_the_text() {
let page = "Content-Type: text/html; charset=windows-1250\r\nContent-Transfer-Encoding: quoted-printable\r\n\r\n=E8lanak
";