1 files changed, 172 insertions, 0 deletions
diff --git a/starts/bagel/nascent2.js b/starts/bagel/nascent2.js
new file mode 100644
index 0000000..883aa7a
--- /dev/null
+++ b/starts/bagel/nascent2.js
@@ -0,0 +1,172 @@
+class ActiveMemory {
+	constructor() {
+		this.ram = []
+		this.cloned = false
+	}
+	clone() {
+		let ret = new ActiveMemory();
+		ret.ram = this.ram
+		ret.cloned = true
+		return ret
+	}
+	add(...items) {
+		if (this.cloned) { this.ram = this.ram.slice(); this.cloned = false; }
+		for (let item of items)
+			this.ram.push(item)
+	}
+	del(...items) {
+		if (this.cloned) { this.ram = this.ram.slice(); this.cloned = false; }
+		for (let item of items) {
+			let index = this.ram.indexOf(item)
+			this.ram.splice(index, 1)
+		}
+	}
+	contains(...items) {
+		for (let item of items)
+			if (this.ram.indexOf(item) === -1) return false
+		return true
+	}
+	containsWith(...props) {
+		let ret = []
+		outer: for (let a of this.ram) {
+			for (let b of props)
+				if (! a.has(b))
+					continue outer
+			return true
+		}
+		return false
+	}
+	getWith(...props) {
+		let ret = []
+		outer: for (let a of this.ram) {
+			for (let b of props)
+				if (! a.has(b))
+					continue outer
+			ret.push(a)
+		}
+		if (ret.length > 0) return ret
+		return null
+	}
+}
+class StringData extends String {
+	constructor(str, from) {
+		super(str)
+		this.props = new Set(from && from.props)
+		this.add('string')
+		this.del('array')
+	}
+	add(val) {
+		this.props.add(val)
+	}
+	has(val) {
+		return this.props.has(val)
+	}
+	del(val) {
+		this.props.delete(val)
+	}
+}
+class ArrayData extends Array {
+	constructor(arr, from) {
+		super(...arr)
+		this.props = new Set(from && from.props)
+		this.add('array')
+		this.del('string')
+	}
+	add(val) {
+		this.props.add(val)
+	}
+	has(val) {
+		return this.props.has(val)
+	}
+	del(val) {
+		this.props.delete(val)
+	}
+}
+
+function line2words(line) {
+	let res = new ArrayData(line.split(' '), line)
+	res.add('words')
+	return res
+}
+line2words.relevence = function(ram) {
+	return ram.getWith('text', 'string')
+}
+line2words.makes = ['array','words'] // property values produced
+
+function respondhello(words) {
+	console.log(words[0] + ", user!")
+	let res = new StringData("said " + words[0])
+	res.add('output')
+	res.add('text')
+	return res
+}
+respondhello.relevence = function(ram) {
+	let res = ram.getWith('words', 'input')
+	if (res) res = res.filter(x => { x = x[0].toLowerCase(); return x == 'hello' || x == 'hi'})
+	return res
+}
+respondhello.makes = ['output']
+
+// nodejs is missing a succinct read-line-from-stdin function.  here, we make one.
+userinput = (() => {
+	const readline = require('readline')
+	const lines = []
+	readline.createInterface({ input: process.stdin }).on('line', (line) => {
+		lines.push(line)
+	})
+
+	function userinput() {
+		let res = new StringData(lines.shift())
+		res.add('text')
+		res.add('input')
+		return res
+	}
+	userinput.relevence = function() {
+		return lines.length > 0
+	}
+	userinput.makes = ['string','text','input']
+
+	return userinput
+})()
+
+
+all_parts = [ line2words, respondhello ]
+
+ram = new ActiveMemory()
+optstried = new Set()
+steps = []
+
+var readline = require('readline')
+readline.createInterface({
+	input: process.stdin
+}).on('line', (line) => {
+	line = new StringData(line)
+	line.add('input')
+	line.add('text')
+	ram.add(line)
+
+	let cont
+	do {
+		cont = false
+		for (let part of all_parts) {
+			//console.log('for-loop-of-parts ' + part.name)
+			let rel = part.relevence(ram)
+			if (rel) {
+				for (let a of rel) {
+					//console.log('for-loop-of-rel ' + part.name + ' ' + a)
+					if (optstried.has(part.name + ' ' + a)) continue; 
+					//console.log('call-part ' + part.name + ' ' + a)
+					res = part(a)
+					ram.add(res)
+					//console.log('part-called')
+					step = [a, part.name, res]
+					steps.push(step)
+					console.log('made ' + step)
+					cont = true
+					optstried.add(part.name + ' ' + a)
+
+				}
+			}
+		}
+	} while (cont)
+})