M12: formulas in German, Brazilian Portuguese, Russian and French, full Spanish table

README.md

@@ -109,7 +109,7 @@ cargo run --release -p gridcraft -- --sample sales --control 7979   # + JSON con
 cargo xtask ci                                                 # fmt, clippy, tests, assets, layering, wasm
 ```
 
-Choose Español under View → Interface language for [Spanish formula names, decimal commas, and semicolon arguments](docs/formula-input.md).
+Choose Español, Deutsch, Português (Brasil), Русский or Français under View → Interface language for [local formula names, booleans, errors and separators](docs/formula-input.md).
 Workbooks, clipboard exchange, and programmatic APIs retain canonical English syntax.
 
 ### Web

ROADMAP.md

@@ -93,8 +93,11 @@ The ribbon is translated into Japanese, Simplified Chinese, Korean, Brazilian Po
 and German (266–268 labels each, ~12% of ~2,200 strings; merged 10-10 in #31, #104, #82, German
 added 10-11), the
 interface follows the system language, and CJK, Thai and Hebrew text falls back to system fonts
-(#38). Dialogs, menus and messages are English; formulas and number formats are en-US only.
-Localized German formulas and numbers are in PR #163. Detail: [localization-parity.md](docs/localization-parity.md).
+(#38). Dialogs, menus and messages are English. Formulas follow the interface language in
+Spanish, German, Brazilian Portuguese, Russian and French (function names, booleans, errors, table
+specifiers and separators at the editor; files keep English: [formula-input.md](docs/formula-input.md));
+number formats are en-US only. PR #163 (German formulas and numbers) is open. Detail:
+[localization-parity.md](docs/localization-parity.md).
 
 | Language | Code | Status | UI strings |
 |---|---|---|---|
@@ -132,6 +135,8 @@ Ranked; estimates in Opus 5.5 agent-hours. Detail and the full beta-gate list in
 
 | Date | What landed |
 |---|---|
+| 2026-10-14 | Formulas in German, Spanish, Brazilian Portuguese and Russian name the functions their tables were missing (bond functions with an odd period, `FORECAST.ETS*`, `PERCENTOF`, `TRIMRANGE`…), each from two sources: 413, 434, 420 and 471 names; Brazilian `REGEXTEST`/`REGEXREPLACE` stay English, `REPLACEB` is `SUBSTITUIRB` |
+| 2026-10-13 | Formulas in French: 405 local function names, `VRAI`/`FAUX`, French errors and table specifiers, `;` arguments and `.` array columns; separators and some names checked in French Excel 2013 and 2024 (#191) |
 | 2026-10-12 | Rows auto-fit oversized fonts: opening a file and whole-row/column formatting grow non-custom rows to their tallest font (#833) |
 | 2026-10-12 | Number formats: parsing a format code is linear in its length (long runs of `[`, `,` or `/` no longer take quadratic time), and an unclosed `[` is a literal when splitting sections as well as when tokenizing (#810) |
 | 2026-10-12 | Number formats: a fraction denominator with 65,536 zeros no longer crashes; format codes are capped at 255 characters like Excel (longer codes display as General, `TEXT` gives `#VALUE!`) (#807) |
@@ -148,6 +153,7 @@ Ranked; estimates in Opus 5.5 agent-hours. Detail and the full beta-gate list in
 | 2026-10-12 | Ink strokes save as unfilled DrawingML paths and reopen as editable ink with their points, colour and width; icons in #551 remain a follow-up |
 | 2026-10-12 | The selection outline stays visible when extended to the last row (Ctrl+Shift+Down): its sides are cut to the viewport instead of stroking a 20-million-point rectangle (#687) |
 | 2026-10-12 | File › Print selects a system printer, copies, duplex and grayscale, submits PDF jobs through craft-print on a worker and shows spooler errors; browser printing and PDF export remain available |
+| 2026-10-11 | Formulas in German, Brazilian Portuguese and Russian, and the full Spanish table: 403–459 local function names per language, local booleans, errors and table specifiers, each language's separators, Unicode autocomplete and Insert Function search; files and APIs keep English |
 | 2026-10-11 | Command-sequence fuzzing: random command sequences checked against undo/redo, XLSX round-trip and full recalculation; fixes for the table, legacy-array, spill, AutoSum, Watch Window and sheet-copy bugs it found |
 | 2026-10-11 | Password-protected workbooks open: GridCraft asks for the password and decrypts Agile and Standard encryption (#11) |
 | 2026-10-11 | Text boxes keep their formatting: run size, bold, italic, typeface, text colour and outline, alignment, vertical anchor and "no outline" (#377) |
@@ -193,13 +199,15 @@ Ranked; estimates in Opus 5.5 agent-hours. Detail and the full beta-gate list in
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-10-13 | minor | Languages: French formula table; progress log row |
 | 2026-10-12 | minor | Rows auto-fit oversized fonts on open and whole-row/column formatting (#833); progress log row |
 | 2026-10-12 | minor | Progress log: multi-area row/column delete (#758) |
 | 2026-10-12 | trivial | Progress log: XLSX chart sheets kept on save (#727) |
 | 2026-10-12 | trivial | Progress log: CSV export size cap (#528) |
 | 2026-10-12 | minor | Progress log: margins dragged on the Page Layout rulers (#792) |
 | 2026-10-12 | minor | Ink preservation across XLSX save/reopen (ink portion of #551) |
 | 2026-10-12 | minor | Desktop File > Print now discovers printers and submits PDF jobs through pinned craft-print with printer choice, copies, duplex and grayscale; browser printing and PDF export remain available. Remaining print parity includes page ranges and driver-specific tray/options UI; physical printer fidelity needs hardware validation. |
+| 2026-10-11 | minor | Languages: formulas follow the interface language in es, de, pt-BR and ru; progress log row |
 | 2026-10-11 | minor | Password-encrypted workbooks open (#11); progress log row |
 | 2026-10-11 | minor | Forecast Sheet (#322); progress log row |
 | 2026-10-11 | minor | Worksheet functions 505 / 523 (ODD* bond functions); progress log row |

crates/calc/src/tests.rs

@@ -1266,3 +1266,12 @@ fn offset_extreme_arguments_return_ref() {
         assert_eq!(crate::evaluate(&wb, 0, c("D1"), formula), Value::Number(expected), "{formula}");
     }
 }
+
+#[test]
+fn formula_language_tables_only_name_functions_the_engine_knows() {
+    // A typo'd canonical name in a language table would turn a valid local name into #NAME?.
+    for locale in gridcraft_formula::FormulaLocale::ALL {
+        let unknown: Vec<&str> = locale.translations().iter().map(|(en, _)| *en).filter(|en| !crate::eval::is_known_function(en)).collect();
+        assert!(unknown.is_empty(), "{locale:?}: {unknown:?}");
+    }
+}