XLSX: strip _xlpm. from LET/LAMBDA parameters on read, keep line breaks in table columns, allow leading backslash in table names
# Conflicts:
# docs/file-format-parity.md
A `;`-separated CSV (the usual CSV where `,` is the decimal separator) was
rewritten with `,` on save: read_csv sniffed the delimiter but the result was
dropped, and save_bytes passed a hard-coded b','. file.save, Save As .csv,
file.exportCsv, file.saveBytes and gridcraft-cli convert all went through it.
The workbook now remembers the separator it was read with
(Workbook::csv_delimiter, set by read_csv) and a CSV save writes it back.
Workbooks not read from CSV, and .tsv/.txt sources saved as .csv, keep `,`.
Regression tests: `;`, `,` and tab .csv round trips byte for byte, new and
.xlsx-origin workbooks save with `,`, and open-by-path + edit + file.save on a
`;` file keeps `;` (also through exportCsv and saveBytes).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Text turned by an angle was drawn at a fixed anchor (bottom-left for upward,
top-left for downward text) and ignored the horizontal and vertical alignment,
so upright text with Middle Align in a tall merged cell sat at the bottom.
rotated_text_pos places the turned galley's bounding box in the cell per the
alignment, then derives the TextShape anchor from it. General/Bottom keep the
old placement for upright text.
Fixes#435
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A password-protected file named on the command line (a Windows or Linux
double-click) now asks for its password, and open errors are shown
instead of only logged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
gridcraft_xlsx::check_encryption parses EncryptionInfo without a
password, so RC4, Extensible, certificate-only and rights-management
(IRM) files, and damaged ones, get their real message instead of a
password prompt first.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
OK on the untouched field says the password is incorrect instead of
asking again; the Backstage closes once the workbook opens; app.open on
the control channel takes a password and never opens the dialog. Control
protocol docs cover file.open {password}.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Without a password, file.open returns an error carrying
io::PASSWORD_REQUIRED (never a dialog). A decrypted workbook gets no save
path, so Save never replaces the encrypted original.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Clean-room from [MS-OFFCRYPTO]: EncryptionInfo parsing, SHA-1/SHA-2 key
derivation with a capped spin count, AES-ECB/CBC. RC4, Extensible and
certificate-only encryption are reported as unsupported.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Restores "Counts whole years, months or days between two dates." and
appends the units, in the multi-line form rustfmt gives a long entry.
Drops the 256-argument test case: the parser already refuses more than
255 arguments, so it never reached the entry check. (993c108's message
says entry "also refuses" them; it already did.)
Claude-Session: https://claude.ai/code/session_01BGBBGBC2gRpQ7GDuwQ6WPt
Model: Series.trendlines (Vec<Trendline>, serde default) with kind
(linear, exponential, logarithmic, polynomial 2..6, power, moving
average 2..255), name, forward/backward forecast, set intercept,
equation / R² display and line colour, width and dash.
XLSX: read and write <c:trendline> in CT_Trendline child order, placed
after dLbls and before the data references in line, bar, area, scatter,
bubble and stock series; unknown types are skipped.
Chart: least-squares fits (transformed for exp/log/power, skipping
non-positive values; polynomials via normal equations on centred,
scaled x with partial pivoting), moving averages, forecasts that widen
the category or x axis, clipping to the plot, equation and R² labels and
legend entries ("Linear (Sales)"). Degenerate data draws nothing.
Engine: chart.addElement element="trendline" adds (type, series, order,
period, forward, backward, displayEquation, displayRSquared) or removes
trendlines; document.inspect lists each chart's trendlines.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Checked against Excel-cached TEXT() results in number- and text-format test workbooks: 226 of 352 TEXT cells mismatched before, 0 after.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Inside DATEDIF( the hint showed only the signature, so the values unit
takes weren't visible while typing it (#363). The hint now adds the
function's description under the signature, wrapped to the hint's
width, the same text the autocomplete list shows (translated where a
Spanish entry exists).
Claude-Session: https://claude.ai/code/session_01BGBBGBC2gRpQ7GDuwQ6WPt
FnSpec::accepts holds the arity check (including Excel's 255-argument
limit) that functions::call and the entry check both use, so entry also
refuses 256 arguments to a variadic function. The evaluator's own check
in calc is unchanged.
Claude-Session: https://claude.ai/code/session_01BGBBGBC2gRpQ7GDuwQ6WPt
Brandon Thomas