JS: A working v0.9.0

assets/js/terms.js

@@ -0,0 +1,54 @@
+class Term {
+    stringValue;
+
+    constructor(stringValue) {
+        this.stringValue = stringValue;
+    }
+
+    toString() {
+        return `Term[${stringValue}]`;
+    }
+
+    valueOf() {
+        return this.stringValue;
+    }
+}
+
+export class NumberTerm extends Term {
+    value;
+
+    constructor(stringValue) {
+        super(stringValue);
+
+        const parsedValue = parseInt(stringValue);
+        if (isNaN(parsedValue)) {
+            throw new TypeError("Number value is not a valid number");
+        }
+
+        this.value = parsedValue;
+    }
+
+    valueOf() {
+        return this.value;
+    }
+
+    toString() {
+        return `Number[${this.value}]`;
+    }
+}
+
+export class NameTerm extends Term {
+    static regex = /[-\w]+/;
+
+    constructor(stringValue) {
+        if (!NameTerm.regex.test(stringValue)) {
+            throw new TypeError("Name must be string with non-zero length");
+        }
+
+        super(stringValue);
+    }
+
+    toString() {
+        return `Name[${this.stringValue}]`;
+    }
+}