WIP: math parser

2kyu/evaluate-mathematical-expression/solution.ts

@@ -0,0 +1,35 @@
+
+type Token = number | '+' | '-' | '*' | '/' | '(' | ')';
+
+
+
+type ASTNode = {
+  type: string,
+}
+
+type OperatorNode = {
+  type: 'operator',
+  value: '+' | '-' | '*' | '/',
+  left: ASTNode,
+  right: ASTNode,
+}
+
+type NumberNode = {
+  type: 'number',
+  value: number,
+}
+
+type GroupNode = {
+  type: 'group',
+  value: ASTNode,
+}
+
+type NegationNode = {
+  type: 'negation',
+  value: ASTNode,
+}
+
+export function calc(expression: string): number {
+  // evaluate `expression` and return result
+  return 0;
+}