Completed transition of the symbol '|' from fraction to operator binary or. New fraction symbol is ':'.

Also, fixed and improved some parsing sections concerning collection indeces and ranges
2024-12-23 06:59:39 +01:00
parent f50ddf48db
commit 6211be8a8f
10 changed files with 109 additions and 93 deletions
@@ -49,19 +49,23 @@ func evalFraction(ctx ExprContext, opTerm *term) (v any, err error) {
 		den = -den
 		num = -num
 	}
-	g := gcd(num, den)
-	num = num / g
-	den = den / g
-	if den == 1 {
-		v = num
+	if num != 0 {
+		g := gcd(num, den)
+		num = num / g
+		den = den / g
+		if den == 1 {
+			v = num
+		} else {
+			v = &FractionType{num, den}
+		}
 	} else {
-		v = &FractionType{num, den}
+		v = &FractionType{0, den}
 	}
 	return
 }

 // init
 func init() {
-	registerTermConstructor(SymVertBar, newFractionTerm)
-	// registerTermConstructor(SymColon, newFractionTerm)
+	// registerTermConstructor(SymVertBar, newFractionTerm)
+	registerTermConstructor(SymColon, newFractionTerm)
 }