day19 parsing done

2023/day19/example.txt

@@ -0,0 +1,17 @@
+px{a<2006:qkq,m>2090:A,rfg}
+pv{a>1716:R,A}
+lnx{m>1548:A,A}
+rfg{s<537:gd,x>2440:R,A}
+qs{s>3448:A,lnx}
+qkq{x<1416:A,crn}
+crn{x>2662:A,R}
+in{s<1351:px,qqz}
+qqz{s>2770:qs,m<1801:hdj,R}
+gd{a>3333:R,R}
+hdj{m>838:A,pv}
+
+{x=787,m=2655,a=1222,s=2876}
+{x=1679,m=44,a=2067,s=496}
+{x=2036,m=264,a=79,s=2244}
+{x=2461,m=1339,a=466,s=291}
+{x=2127,m=1623,a=2188,s=1013}

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')