day19 parsing done

2023/day19/index.js

@@ -0,0 +1,37 @@
+import fs from 'node:fs'
+import { json } from 'node:stream/consumers'
+
+function init(filename) {
+    const data = fs.readFileSync(filename, { encoding: 'utf-8' }, data => data)
+    const workflow = new Workflow()
+    let rules = data.split('\n\n')[0].split('\n')
+    rules.forEach(rule => {
+        rule.matchAll(/(.*)\{(.*),(\w+)\}/gm)
+            .forEach(r => {
+                r[2].split(',').forEach(condition => {
+                    workflow.rules.push({ name: r[1], condition: condition, default: r[3] })
+                })
+            })
+    })
+    let flows = data.split('\n\n')[1].split('\n')
+    flows.forEach(flow => {
+        let newStr = flow.replace(/([a-zA-Z0-9]+)=([a-zA-Z0-9]+)/gm, "\"$1\": \"$2\"")
+        workflow.flows.push(JSON.parse(newStr))
+    })
+    workflow.test()
+}
+
+class Workflow {
+    constructor() {
+        this.rules = []
+        this.flows = []
+    }
+
+    test() {
+
+        console.log(this.rules)
+        console.log(this.flows)
+    }
+}
+
+init('example.txt')