Shirish Veerabattini 56f784473d engine: refuse formulas with the wrong argument count on entry ...

A formula calling a built-in function with too few or too many
arguments (=DATEDIF(a,b), =SUM(), =DATE(2024,1)) was stored and showed
#VALUE! with no hint about what was wrong. Entry now refuses it with
the function's signature, e.g. "DATEDIF has too few arguments. Use
DATEDIF(start_date, end_date, unit)", and leaves the cell unchanged.

Only registered functions are checked: special forms the evaluator
handles itself (IF, LET, LAMBDA...), LAMBDA names and unknown functions
are skipped. Paste and Find & Replace keep turning input that fails
entry into text. DATEDIF's description now lists its units.

Fixes #363

Claude-Session: https://claude.ai/code/session_01BGBBGBC2gRpQ7GDuwQ6WPt

2026-10-11 13:29:14 -05:00

..

examples

Review fix-up: uniform, plot-clamped spline smoothing

2026-10-10 12:21:35 -04:00

src

engine: refuse formulas with the wrong argument count on entry

2026-10-11 13:29:14 -05:00

tests

selection.move: clamp extreme dr/dc to the sheet edge instead of overflowing

2026-10-10 21:05:58 -05:00

Cargo.toml

#92: import XLSB worksheet data and saved formula results

2026-10-09 22:19:36 -04:00