The argument hint, autocomplete, Insert Function and the Formulas-tab menus
read per-language tables of function descriptions and argument names
(i18n/<lang>_functions.rs), keyed by the catalog's English text and
binary-searched. The hint is assembled from the formula syntax's function
name and separator plus the language's argument names, all of them or none,
so it never mixes two languages. Insert Function searches the translated
descriptions and shows readable category names. SPANISH_HELP moves to
es_functions.rs with its 10 functions.
`formulas.evaluate` (behind `gridcraft-cli eval` and MCP's `evaluate_formula`) turned any
formula that didn't parse into #NAME?, so `=SUM(1;2)` looked like an unknown function. It now
parses the way `cell.set` does (missing closing parentheses are added) and returns the same
errors: "There's a problem with this formula: expected `,` or `)`, found Semicolon", or the
wrong-argument-count message. An unknown function still evaluates to #NAME?, as in Excel.
quantmind-br