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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 i = 0; i < props.length; i += 2)
if (! a.props.has(props[i], props[i+1]))
continue outer
return true
}
return false
}
getWith(...props) {
let ret = []
outer: for (let a of this.ram) {
//console.log(a.props.props)
for (let i = 0; i < props.length; i += 2) {
//console.log(props[i] + ': ' + props[i+1] + '?')
if (! a.props.has(props[i], props[i+1]))
continue outer
}
ret.push(a)
}
if (ret.length > 0) return ret
return null
}
}
class Property {
constructor(type, dest) {
this.type = type
this.dest = dest
}
}
class Properties {
constructor(type, from) {
this.props = from ? from.props.slice() : []
//if (from) {console.log('INHERIT: '); for (let prop of this.props) { console.log(prop) }}
this.add('is', type)
}
toString() {
let str = ''
for (let prop of this.props) {
str += prop.type + ':' + prop.dest + ' '
}
return str
}
add(type, dest) {
this.props.push(new Property(type, dest))
}
has(type, dest) {
for (let p of this.props)
if (p.type == type && p.dest == dest)
return true
return false
}
del(type, dest) {
for (let i = 0; i < this.props.length; ++ i) {
let p = this.props[i]
if (p.type == type && p.dest == dest) {
this.props.splice(i, 1)
return true
}
}
return false
}
}
class AbstractData {
constructor(from) {
this.props = new Properties('abstract', from && from.props)
}
}
class StringData extends String {
constructor(str, from) {
super(str)
this.props = new Properties('string', from && from.props)
this.props.del('is', 'array')
}
}
class ArrayData extends Array {
constructor(arr, from) {
super(...arr)
this.props = new Properties('array', from && from.props)
this.props.del('is', 'string')
}
}
class FunctionData {
constructor(name, func, relevence, makes) {
this.name = name
this.props = new Properties('function')
this.props.add('name', name)
this.call = func
this.relevence = relevence
this.makes = makes
}
}
// variables:
// - create a place to store a value
// createvar = new FunctionData(
// 'createvar',
// /*call*/(name) => {
// let ret = new StringData(name)
// ret.add
// let name = obj_and_name[1]
// },
// /*relevence*/,
// /*makes*/
// )
// - place a value in such a place
// - retrieve a value from such a place
// data-structures:
// - make a class definition (collection of variables)
// - initialize an object
// - set/retrieve properties (variables)
// flow:
// - trigger a different step than the next, conditionally
// procedures:
// - collect a set of behaviors together
// - trigger a collected set of behaviors and continue
// expressions:
// - evaluate arithmetic on variables and constants
line2words = new FunctionData(
'line2words',
(line) => { // call
let res = new ArrayData(line.split(' '), line)
res.props.add('is','words')
return res
},
(ram) => { // relevence
return ram.getWith('is','text', 'is','string')
},
['is','array','is','words'] // makes
)
respondhello = new FunctionData(
'respondhello',
(words) => { // call
console.log(words[0] + ", user!")
let res = new StringData("said " + words[0])
res.props.add('is','output')
res.props.add('is','text')
return res
},
(ram) => { // relevence
let res = ram.getWith('is','words', 'is','input')
if (res) res = res.filter(x => { x = x[0].toLowerCase(); return x == 'hello' || x == 'hi'})
return res
},
['is','output', 'is','text'] // makes
)
// nodejs is missing a succinct read-line-from-stdin function. make our own.
userinput = (() => {
const readline = require('readline')
const lines = []
readline.createInterface({ input: process.stdin }).on('line', (line) => {
lines.push(line)
})
return new FunctionData(
'userinput',
() => { // call
let res = new StringData(lines.shift())
res.props.add('is','text')
res.props.add('is','input')
return res
},
() => { // relevence
return lines.length > 0
},
['is','string','is','text','is','input'] // makes
)
})()
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.props.add('is','input')
line.props.add('is','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.call(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)
})
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