Audited the grid, ribbon and editor key handling against Microsoft's
published Windows and Mac shortcut lists. New keymap.rs binds the ones
whose feature already exists: Ctrl+Shift+~!@#$%^&_ number formats and
borders, Ctrl+2-5, Ctrl+Shift+: time, Ctrl+' / Ctrl+Shift+" from the cell
above, Ctrl+L, Ctrl+Shift+L, Ctrl+P, Ctrl+Alt+V, Alt+=, Alt+Down,
Alt+Page Down/Up, Ctrl+Shift+Home/End, Shift+Home, the F-key family
(Shift+F2/F3/F9/F10/F11, F5, F7, F12, Ctrl+F1/F3/F4, Alt+F1, Ctrl+Alt+F9)
and the Excel for Mac variants (Cmd+L/E alignment, Control+E Flash Fill,
Cmd+Option borders, Cmd+Shift+K/J/H/R). Number-format keys match the
physical key; AltGr text never triggers a Ctrl+Alt shortcut. Fixes the
command catalog's wrong shortcut labels and documents the audit.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The theme could only be chosen in the View tab's Display theme box, and
the app always started light. Now:
- a title-bar button switches light/dark in one click (view.darkMode);
right-click offers System / Light / Dark;
- File › Display theme offers the same three (Excel keeps it under
File › Account › Office Theme);
- the desktop app follows the system appearance until a theme is chosen
and saved in ui.json (UiState's default stays light for tests).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
AAA exponential smoothing (Hyndman et al. 2008, ETS(A,A,A)) over an evenly
spaced timeline: documented seasonality, data completion and aggregation
arguments, calendar-month date timelines, autocorrelation seasonality
detection, state-space prediction intervals, statistic types 1-8.
Smoothing parameters minimise the in-sample SSE (grid + clamped
Nelder-Mead). XLSX export treats the family's range arguments as
array-taking (no spurious dynamic-array metadata), FORECAST/FORECAST.LINEAR
included.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A chart linked to a PivotTable: series are built from the report
(innermost row items x column items/value fields, totals excluded) and
rebuilt on every refresh or layout change; c:pivotSource round trip;
chart series accept union references.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sheet Right-to-Left (view.rightToLeft, XLSX rightToLeft) was stored and
round-tripped but never rendered. The grid now lays out in logical
left-to-right coordinates and mirrors on screen: painted shapes are
reflected (text and pictures only moved), floating objects move as a
whole, pointer input is mirrored back for hit-testing, Left/Right arrows
follow the screen, and the cell editor, text box editor, popups and the
vertical scrollbar are placed on the mirrored side. Page Layout gets a
Sheet Right-to-Left button.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Like Excel for the web, a bar in the upper part of the column-header strip
and one in the left part of the row-header strip sit on the frozen panes'
edges (the corner's edges when nothing is frozen). Dragging one previews
the line and, on release, freezes up to the nearest column or row boundary
through view.freezePanes; dragging back to the corner unfreezes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Model: Sheet.edit_ranges (title, ranges, optional password hash,
security descriptor) and gridcraft_model::password: the ECMA-376 legacy
16-bit hash and the salted, iterated SHA-2 hash (SHA-512/384/256; other
algorithms, damaged hashes and spin counts over 10,000,000 are refused).
New passwords use SHA-512, spin count 100000. Adds the sha2 crate.
- XLSX: <protectedRanges> read and written; an unreadable password keeps
the range locked.
- review.allowEditRanges {action: list|add|modify|delete|unlock, ...}: empty
params list; ranges can't change while the sheet is protected; unlock
verifies the password for the session. Not journaled (passwords).
- Locked-cell checks (commit guard, cell.set, picture in cell) let edits
through in open or unlocked ranges; ranges move with structural edits.
- Ribbon button and a form dialog (menu invocation only).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A value field can be a calculated field whose formula is evaluated on
the sums of the fields it names for each report cell (Excel's documented
semantics). Command to add/change/delete, dialog from the field pane,
XLSX cacheField formula round trip.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
insert.checkbox existed but had no ribbon button, replaced existing values
with FALSE and was written to XLSX as an invalid number format. Now:
Insert > Checkbox (Cell Controls); empty cells start FALSE, other values
stay and display as General; toggling an emptied box checks it and only
checkbox cells toggle; Delete unchecks first, then removes the boxes; XLSX
reads and writes the checkbox as Excel's feature-property-bag cell control
([MS-XLSX] 2.1.22, 2.3.9, 2.4.99).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A line chart from numeric X values (years) plotted them as a series and
there was no way to set the axis labels. Now:
- a blank top-left cell over a header row makes the first column the
category labels even when it holds numbers (the usual convention);
- chart.selectData takes categories (Horizontal (Category) Axis Labels,
"" clears) and removeSeries, and range is optional;
- Chart Design gets a Select Data button opening a Select Data Source
dialog: chart data range, legend entries with Remove, axis labels.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Writer: one xl/threadedComments/threadedCommentN.xml per sheet with
comments (thread, replies via parentId, done for resolved, dT when known)
and xl/persons/person.xml (one person per author), with the [MS-XLSX]
relationship and content types. Each thread keeps its legacy note, linked
by the tc={id} author and xr:uid; its body is the text plus replies.
Ids are GUID-shaped and deterministic.
- Reader: keeps dT timestamps (Comment.dates, JSON-compatible), drops
replies whose thread is missing, and reads note visibility from the VML
<x:Visible/> (best effort, broken VML skipped silently).
- Invalid dates are never written. Round-trip and hostile-input tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The ribbon button inserted a column chart straight away. It now opens an
Insert Chart dialog: a Recommended tab (insert.chartRecommendations, a
heuristic over the data's shape: series, points, labels, negatives) and an
All Charts tab, each with a live preview of the chart for the selection.
OK inserts the chosen type and selects the chart.
insert.recommendedCharts stays dialog-free for programmatic calls: without
a type it inserts the first recommendation; type/subtype pick one.
insert_chart is split into build_chart (also used for previews).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
UI fonts such as Noto Sans, Cantarell and egui's built-in Ubuntu lack some
of the symbols the interface draws as text (▸ ⌃ ✓ ✕ ▲ ▼ arrows), so they
rendered as empty boxes. Two symbol faces now sit at the end of every font
chain: DejaVu Sans (Debian, Fedora and Arch paths; Segoe UI Symbol on
Windows, Apple Symbols on macOS) and Noto Sans Symbols 2. The UI font
candidates also gain Fedora's package folders (#54).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Evaluator special form returning the range (or array) without its blank
outer rows and columns; trim codes 0-3 as documented; written as
_xlfn.TRIMRANGE. The trim-reference operators are not parsed yet.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- view.zoom100 sets the active sheet's zoom to 100% (the ribbon's 100%
button runs it).
- view.formulaBar {on?} toggles a formulaBar preference (Prefs, saved in
prefs.json on desktop; an application option, not in the file). The UI
shows the formula bar from it; the ribbon checkbox, native menu and
ui.set {formulaBar} go through the command.
- The UI-only interceptions and their entries in engine.commands are gone,
so the CLI and MCP can run both. Parity checklist regenerated (260 / 290).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
UiState gains interfaceScale (percent, 100 = Auto, 75–200), saved in
ui.json and applied as egui's zoom factor on top of the desktop scale.
New UI command view.interfaceScale {percent | "auto"} clamps hostile
values; a malformed saved value reads as 100. View tab gets an
"Interface size" picker. egui's built-in keyboard zoom is turned off so the
preference owns the zoom.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
dialogs::show put the Name Manager back into app.dialog after its body
had opened the New Name dialog, so New… did nothing. A dialog opened from
another one now takes over and the opener waits behind it (back), coming
back when the child closes; Go To still hands over to Go To Special.
The Name Manager gets Excel's New…/Edit…/Delete buttons over a selectable
list. formulas.defineName takes oldName/oldScope to edit a name in place;
a renamed name is renamed in cell formulas and other names' definitions.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Thai number words with บาท / สตางค์ / ถ้วน, rounded to satang, ล้าน
repeating per six digits, ลบ for negatives.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New command home.insertCopiedCells: makes room at the active cell and
pastes the clipboard there, as one undo step. Whole copied rows or columns
insert whole rows or columns; a copied block shifts the cells down or right
(Insert Paste dialog from the menu). A cut of whole rows or columns moves
them and closes the gap (Insert Cut Cells). The cell and header context
menus show the entry while the clipboard holds a copy.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- review.previousComment / review.nextComment select the previous/next
threaded comment in reading order (row by row), across visible sheets in
tab order, wrapping around; disabled when the workbook has no comments.
- review.showComments {on?} toggles the Comments pane as session state, so
the CLI, MCP and control channel can drive it; the UI pane follows it.
- review.showAllNotes {on?} displays every note (session display setting,
not saved in the file).
- review.convertToComments turns every note in the workbook into a threaded
comment with the same author and text, as one undoable edit.
- Ribbon: Previous/Next and a Show Comments toggle in the Comments group;
Show All Notes and Convert to Comments in the Notes menu. Strings in all
catalogs. Parity checklist regenerated (263 / 290).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Spreadsheets put an HTML table next to the tab-separated text; Excel
(x:num) and LibreOffice Calc (sdval) record each cell's number there.
Paste now reads the HTML flavour (new paste_html host service, arboard on
desktop) and edit.paste takes an optional html param: a field that would
paste as text becomes the recorded number when the HTML cell shows the
same text, with an inferred format ("Rp"#,##0.00) that renders it back
identically.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Enter that commits the Name Box stayed in the frame's input; the grid,
drawn after the formula bar and focused again, read it as its own Enter
and moved the active cell down. The Name Box now consumes it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
PERCENTOF = SUM(subset) / SUM(all), written as _xlfn.PERCENTOF.
EUROCONVERT uses the fixed EU conversion rates for the currencies the
function documents, with currency rounding and triangulation precision.
New Add-in category for EUROCONVERT.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A plain drag copies a lone number and extends every other series; Ctrl+drag
(Cmd on macOS) now does the opposite, as in Excel: a lone number counts up
by 1, and numbers, dates, lists and `Item 1`-style text are copied.
edit.autoFill gains mode "alternate" for this.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
epaint panics in set_fonts on a face skrifa can't open. Every system font
file is now checked with the same skrifa call (plus a readable cmap)
before it reaches FontDefinitions; a bad candidate is skipped with a
warning and the next one is tried, and a final pass drops any remaining
unparseable face from the definitions and every family.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Odd first and last coupon periods via quasi-coupon periods, from the
formulas on Microsoft's public function pages. ODDLYIELD is closed form;
ODDFYIELD bisects ODDFPRICE (bounded). Financial is now 55 / 55.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New catalog crates/ui-egui/src/i18n/de.rs (266 entries) mirroring the ru.rs
key set exactly; original translations written from the meaning of the
English UI strings, MIT OR Apache-2.0.
- Language::De registered (code de, name Deutsch); de/de-DE/de_AT/de-CH
resolve via from_tag
- Tests: German coverage in the i18n coverage loop, de/de-AT/de-CH locale
tags, ribbon round-trip case, default CJK font-order assertion
- Docs: localization-parity.md row, ROADMAP.md languages section
cargo test -p gridcraft-ui-egui i18n: 5 passed; --lib: 21 passed;
interaction + formula_locale: 13 + 8 passed.
The file format has no `@` operator, but formulas with an explicit
implicit intersection were written with a literal `@`
(`<f>@A1:A3*2</f>`). Excel writes `@x` as `_xlfn.SINGLE(x)`, which only
dynamic-array formulas carry. The writer now does the same and marks such
formulas cm="1"; the parser reads `SINGLE(x)` back as `@x`, as it already
does for `ANCHORARRAY` and `#`.
Two cases in the #83 metadata test expected a redundant `@` (`SQRT(@A1:A3)`,
`@A1:A3*2`) to be written as an ordinary formula. Dropping the `@` there is
only lossless if the reader puts it back on legacy formulas, which it
doesn't yet (the read side of #64), so they now expect cm.
generated with Claude Code
Turning the filter on with a multi-cell selection used the selection as the
filter range. With only the header row selected, the filter had no data rows:
the dropdown list was empty and filtering hid nothing. A one-row selection
now extends down over the current region below it. An explicit `range`
parameter is still taken as given.
The filter menu gets a search box, as asked for in the issue. It narrows
the value list; Select All then reads "(Select All Search Results)" and
covers only the matches, and Apply keeps only the checked matches. The box
takes focus when the menu opens, so typing no longer lands in the active
cell.
generated with Claude Code
An icon-set rule without stored thresholds (every rule made by
home.conditionalFormat, and the sales sample) was written as an empty
<iconSet>, which CT_IconSet forbids (cfvo minOccurs 2); openpyxl drops it.
The writer now always emits one cfvo per icon: the stored thresholds when
there is one per icon, the lower bound prepended when it is missing, else
Excel's defaults (percent 0/33/67, 0/25/50/75, 0/20/40/60/80).
Evaluation read the thresholds as one fewer than the icons, but files
carry one per icon (the first is the lower bound), so thresholds read from
a file were ignored. Both now share icon_count and default_icon_thresholds
in gridcraft-model; icon_count is clamped to 3..=5 so a set name like
"0Foo" can't underflow k - 1.
generated with Claude Code
Excel's cell cursor doesn't jump: press an arrow key or click a cell and the
border slides over; extend the selection and it grows. The outline of the
current area now does the same, in 0.12 s with a decelerating curve, from
wherever it is drawn (a held arrow key reads as one motion), with its fill
and fill handle. The timing is an estimate, not yet measured against Excel.
The same cells moving on screen (scrolling, zoom, a resized column), another
sheet or workbook, an outline that wasn't drawn the frame before, and moves
that start or end off screen don't glide. Only painting waits: the
selection, hit testing and the cell editor use the real cells at once.
View > Animations (under Display theme) turns it off; view.animations {on?}
and ui.set {animations?} do the same for agents. Saved with the UI
preferences, on by default; translated in the five catalogs.
Scripted pictures never catch an outline in flight: it stays on its cells
while a ui.screenshot is on its way and when egui's animations are off (the
headless harness, so the offscreen snapshot). The marching ants around a
copied range now advance by the clock instead of once per painted frame,
since a glide repaints every frame and made them lurch.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The active cell of a selected range was shaded like the rest of the range:
the line meant to clear it painted a fully transparent rectangle, which
changes nothing. The fill now goes around the active cell (the whole merged
cell when it is one) in every area of the selection, so it is plain where
typing goes. A lone active cell among several areas isn't shaded at all,
and neither is a single selected merged cell.
The fill is translucent, so the cell can't be cleared by painting over it:
each area is shaded as up to four rectangles around it that never overlap.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Typing 25:00 or 36:30:15 gave the right value but the h:mm format, so
the cell showed 1:00 and 12:30:15. Excel formats such entries as
[h]:mm:ss (25:00:00).
Excel decides duplicates by what a cell displays, not the value stored:
the same date shown as 3/8/2006 and as Mar 8, 2006 is two values, while
1.01 and 1.02 both shown as 1.0 are duplicates. Remove Duplicates
compared stored values, so it did the opposite in both cases.
7/4/1776 was entered as 7/4/3676 and DATEVALUE("12/31/1899") gave
693962: the text parser built dates with DATE()'s rule that adds 1900 to
years below 1900. Excel keeps such entries as text, and DATEVALUE gives
#VALUE!.
With Case sensitive checked, Sort compared text by code point, so every
uppercase word came before every lowercase one (A, B, a, b). Excel
compares ignoring case first and only then puts lowercase before
uppercase: a, A, b, B.
home.conditionalFormat took any operator it didn't know as "greater",
so a Cell Value rule given Excel's own names (lessThan, greaterThan,
lessThanOrEqual, greaterThanOrEqual, as in the file format and VBA)
silently became "greater than". Those names are now accepted, as data
validation already does, and anything else is an error.
The evaluator took a single index, so CHOOSE({1,2},"a","b") gave "a"
and VLOOKUP(x,CHOOSE({1,2},B1:B3,A1:A3),2,FALSE) gave #REF!. An array
index now goes through the library CHOOSE, which lifts over its
arguments as Excel does.
COUNTIF(range,"*") counted empty cells and COUNTIF(range,"<>*") skipped
them. Excel matches text patterns against text only: an empty string is
text, a blank cell is not.
Excel compares a blank cell as 0 (or empty text) in Cell Value rules,
so "less than 5" or "equal to 0" also formats blank cells, and a
cell holding an error never matches (the comparison is an error).
GridCraft skipped blank cells and matched errors as if they sorted
above every number ("greater than 5" formatted #N/A).
The No Blanks rule also counted a cell holding only spaces as not
blank, while the Blanks rule (like Excel's LEN(TRIM())) counted it as
blank, so such a cell matched both.
Only the first matching rule's format was used, so with a light red
fill for >300 and a red border for >500, 510 showed only the border.
Excel applies every matching rule; where two rules set the same part
(fill, font colour, a border edge…), the rule with the higher priority
wins, and Stop If True still ends the list.
Language::Es was registered and switches formulas to Spanish (SUMA, decimal comma, semicolon
arguments), but every interface label still fell back to English. This adds es.rs with all 266
labels in Excel's Spanish wording (Combinar y centrar, Inmovilizar paneles, Análisis de
hipótesis, Buscar objetivo, Rastrear precedentes…) and covers Spanish in the i18n tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012JC2QZ1Qc5KQMBswS38GKy
Excel shows 15 significant digits. When a number is an exact tie at the 16th
(its exact decimal expansion is 15 digits, a 5, then only zeros), Excel
rounds it toward zero: TEXT(1234567890123455,"0") is 1234567890123450.
GridCraft took Rust's `{:.14e}`, which rounds that tie to even, so any tie
with an odd 15th digit came out one unit too high (…460).
decimal_digits now formats 16 digits (correct unless the 16th is a 5),
and only on a 5 checks the exact expansion (a 30-digit screen, then the
full one) and truncates a true tie. Non-ties, including values just above
or below a tie, round as before. One format serves almost every number.
Tests: ties of every 15th-digit parity, negatives, fractional ties, the
neighbours just above and below a tie, the carry after fifteen 9s
(999999999999999.5 shows 999999999999999), and unchanged ordinary cases.
Evidence: Windows Excel 16.0.20430 TEXT() over a 174-row probe and a 24-row
carry probe agree on every row except those under a percent format and
General over negatives (the two bugs named below). The suite's number-format
golden goes from 183,843 to 184,900 of 187,810 passing with no row that
passed before failing now.
modified: crates/numfmt/src/decimal.rs
modified: crates/numfmt/src/tests.rs
The ODS and XLSB readers parse untrusted package metadata and content through
`quick_xml::NsReader`. In 0.38.4 that is RUSTSEC-2026-0195 (CVSS 7.5): the namespace
resolver pushes a binding for every `xmlns` / `xmlns:*` declaration on a start tag, with
no cap on how many there are, and `NsReader::read_event` reaches that path - not only
`read_resolved_event`.
None of our caps bound it. MAX_PART (512 MiB), MAX_TOTAL (1 GiB), MAX_ENTRIES,
MAX_CELLS, MAX_TEXT and MAX_DEPTH bound part size, entry count, cells, text and nesting,
never declarations per tag.
Measured with `gridcraft-cli info` on crafted .ods files, before this change:
754 B, 0 declarations -> 8.6 MB, exit 0
24 KB, 1,000,000 -> 52.6 MB, exit 0
187 KB, 8,000,000 -> 367.8 MB, exit 0
770 KB, 33,000,000 -> 1.46 GB, exit 0
About 45 bytes of resident memory per declaration, roughly 1,900x the file size, and no
error at all. At MAX_PART a ~1 MB file reaches ~1.9 GB, and every part is held in memory
while the package is read. Both readers share the path, so a downloaded .ods or .xlsb
was enough. Nothing panicked, so `Session::execute` never saw it.
0.41.0 caps declarations per start tag at 256 (DEFAULT_MAX_DECLARATIONS_PER_ELEMENT,
raisable through NamespaceResolver::set_max_declarations_per_element) and returns
`NamespaceError::TooManyDeclarations` beyond it. The same fixtures after:
754 B -> 8.6 MB, ok 24 KB -> 19 MB, error
187 KB -> 101.8 MB, error 770 KB -> 397 MB, error
with "start tag declares more than 256 namespace bindings". The residual peak is the
part itself: MAX_PART still lets one part decompress to 256 MiB, the existing intended
bound.
API changes for 0.41 (0.x bumps may break; all four are in the xlsx crate):
- `resolve_element` and `resolve_attribute` moved off `NsReader` on to the resolver:
`reader.resolver_mut().resolve_element(..)`. `attr` and `tag` in ods.rs take
`&mut NsReader` for that.
- `Attribute::unescape_value` is deprecated in favour of `normalized_value`, which also
applies the attribute-value normalization the XML specification requires.
- `BytesText::xml_content` now takes the document's XML version.
This also clears RUSTSEC-2026-0194, the quadratic duplicate-attribute check. xml.rs
already passed `with_checks(false)`, but ods.rs and xlsb.rs used the checked iterator, so
they were on the quadratic path as well.
Regression test: `ods_tests::ods_namespace_declaration_bomb_is_rejected` asserts that a
tag with thousands of declarations is an error and that a document with a handful still
reads. It fails on 0.38.4 (the tag is accepted) and passes on 0.41.0.
Verified: `cargo xtask ci`; the full xlsx suite (80 tests) plus the malformed-input
tests; and the four measurements above, before and after, with no panics either way.
Clicking the Save icon in the toolbar, or the Save button in the "save
changes?" dialog, called file.save directly without first committing a
cell edit still in progress (e.g. double-click a cell, type a new value,
then click Save with the mouse instead of pressing Enter). The pending
text in EditState was never flushed into the document, so the saved
file still held the pre-edit value, silently.
The File > Save menu item already guards against this
(app.commit_edit(...) before running the command); this applies the
same guard to the toolbar icon and the saveChanges dialog's Save button.
