adding count2

src/engine/functions.ts

@@ -52,6 +52,10 @@ export const FUNCTIONS: Record<string, FunctionFn> = {
     return nums(values).length;
   },
 
+  COUNT2(values) {
+    return values.length;
+  },
+
   // IF(cond; then; else?) -- evaluator.ts special-cases this name *before*
   // ever reaching FUNCTIONS, giving it real short-circuit evaluation (only
   // the taken branch is computed, so e.g. IF(B1=0; 0; A1/B1) never runs the
@@ -152,6 +156,7 @@ export const BUILTIN_SIGNATURES: ReadonlyArray<{ name: string; hint: string }> =
   { name: 'MIN', hint: 'MIN(Zahl1; Zahl2; …)' },
   { name: 'MAX', hint: 'MAX(Zahl1; Zahl2; …)' },
   { name: 'COUNT', hint: 'COUNT(Zahl1; Zahl2; …)' },
+  { name: 'COUNT2', hint: 'COUNT(Text1; Zahl2; …)' },
   { name: 'IF', hint: 'IF(Bedingung; Dann; Sonst?)' },
   { name: 'DATE', hint: 'DATE(Jahr; Monat; Tag)' },
   { name: 'TIME', hint: 'TIME(Std; Min; Sek)' },