Start MathPage class

src/support/page.ts

@@ -0,0 +1,33 @@
+import {MathStatement} from './parse'
+import * as math from 'mathjs'
+
+export class MathPage {
+    protected statements: Record<string, MathStatement> = {}
+
+    constructor(
+        public readonly id: string,
+    ) {}
+
+    addStatement(statement: MathStatement): this {
+        this.statements[statement.id] = statement
+        return this
+    }
+
+    symbols(): math.SymbolNode[] {
+        return Object.values(this.statements)
+            .map(x => x.symbols())
+            .reduce((carry, current) => current.concat(carry), [])
+    }
+
+    defines(): math.SymbolNode[] {
+        return Object.values(this.statements)
+            .map(x => x.defines())
+            .reduce((carry, current) => current.concat(carry), [])
+    }
+
+    uses(): math.SymbolNode[] {
+        return Object.values(this.statements)
+            .map(x => x.uses())
+            .reduce((carry, current) => current.concat(carry), [])
+    }
+}

src/support/parse.ts

@@ -253,6 +253,7 @@ export class LValSymbolWalk extends SymbolWalk {
 
 export class MathStatement {
     constructor(
+        public readonly id: string,
         public readonly raw: string,
     ) {}