added question-classes submodule

This commit is contained in:
MrFry 2019-10-11 12:06:48 +02:00
parent f30f4d4fc5
commit 2a6962b036
5 changed files with 6 additions and 406 deletions

View file

@ -1,404 +0,0 @@
const commonUselessAnswerParts = [
'A helyes válasz az ',
'A helyes válasz a ',
'A helyes válaszok: ',
'A helyes válaszok:',
'A helyes válasz: ',
'A helyes válasz:',
'The correct answer is:',
'\''
]
const commonUselessStringParts = [',', '\\.', ':', '!']
const lengthDiffMultiplier = 10 /* Percent minus for length difference */
const minMatchAmmount = 60 /* Minimum ammount to consider that two questions match during answering */
const assert = (val) => {
if (!val) { throw new Error('Assertion failed') }
}
class StringUtils {
RemoveStuff (value, removableStrings) {
removableStrings.forEach((x) => {
var regex = new RegExp(x, 'g')
value = value.replace(regex, '')
})
return value
}
SimplifyQuery (q) {
assert(q)
var result = q.replace(/\n/g, ' ').replace(/\s/g, ' ')
return this.RemoveUnnecesarySpaces(result)
}
ShortenString (toShorten, ammount) {
assert(toShorten)
var result = ''
var i = 0
while (i < toShorten.length && i < ammount) {
result += toShorten[i]
i++
}
return result
}
ReplaceCharsWithSpace (val, char) {
assert(val)
assert(char)
var toremove = this.NormalizeSpaces(val)
var regex = new RegExp(char, 'g')
toremove = toremove.replace(regex, ' ')
return this.RemoveUnnecesarySpaces(toremove)
}
// removes whitespace from begining and and, and replaces multiple spaces with one space
RemoveUnnecesarySpaces (toremove) {
assert(toremove)
toremove = this.NormalizeSpaces(toremove)
while (toremove.includes(' ')) {
toremove = toremove.replace(/ {2}/g, ' ')
}
return toremove.trim()
}
// simplifies a string for easier comparison
SimplifyStringForComparison (value) {
assert(value)
value = this.RemoveUnnecesarySpaces(value).toLowerCase()
return this.RemoveStuff(value, commonUselessStringParts)
}
RemoveSpecialChars (value) {
assert(value)
return this.RemoveStuff(value, ['&'])
}
// if the value is empty, or whitespace
EmptyOrWhiteSpace (value) {
// replaces /n-s with "". then replaces spaces with "". if it equals "", then its empty, or only consists of white space
if (value === undefined) { return true }
return (value.replace(/\n/g, '').replace(/ /g, '').replace(/\s/g, ' ') === '')
}
// damn nonbreaking space
NormalizeSpaces (input) {
assert(input)
return input.replace(/\s/g, ' ')
}
CompareString (s1, s2) {
if (!s1 || !s2) {
return 0
}
s1 = this.SimplifyStringForComparison(s1).split(' ')
s2 = this.SimplifyStringForComparison(s2).split(' ')
var match = 0
for (var i = 0; i < s1.length; i++) {
if (s2.includes(s1[i])) { match++ }
}
var percent = Math.round(((match / s1.length) * 100).toFixed(2)) // matched words percent
var lengthDifference = Math.abs(s2.length - s1.length)
percent -= lengthDifference * lengthDiffMultiplier
if (percent < 0) { percent = 0 }
return percent
}
AnswerPreProcessor (value) {
assert(value)
return this.RemoveStuff(
value, commonUselessAnswerParts)
}
// 'a. pécsi sör' -> 'pécsi sör'
RemoveAnswerLetters (value) {
assert(value)
let s = value.split('. ')
if (s[0].length < 2 && s.length > 1) {
s.shift()
return s.join(' ')
} else {
return value
}
}
SimplifyQA (value, mods) {
if (!value) { return }
const reducer = (res, fn) => {
return fn(res)
}
return mods.reduce(reducer, value)
}
SimplifyAnswer (value) {
return this.SimplifyQA(
value,
[
this.RemoveSpecialChars.bind(this),
this.RemoveUnnecesarySpaces.bind(this),
this.AnswerPreProcessor.bind(this),
this.RemoveAnswerLetters.bind(this)
])
}
SimplifyQuestion (value) {
return this.SimplifyQA(
value,
[
this.RemoveSpecialChars.bind(this),
this.RemoveUnnecesarySpaces.bind(this)
])
}
SimplifyStack (stack) {
return this.SimplifyQuery(stack)
}
}
const SUtils = new StringUtils()
class Question {
constructor (q, a, i) {
this.Q = SUtils.SimplifyQuestion(q)
this.A = SUtils.SimplifyAnswer(a)
this.I = i
}
toString () {
var r = '?' + this.Q + '\n!' + this.A
if (this.I) { r += '\n>' + this.I }
return r
}
HasQuestion () {
return this.Q !== undefined
}
HasAnswer () {
return this.A !== undefined
}
HasImage () {
return this.I !== undefined && (typeof this.I === 'string' || Array.isArray(this.I))
}
IsComplete () {
return this.HasQuestion() && this.HasAnswer()
}
Compare (q2, i) {
assert(q2)
if (typeof q2 === 'string') {
var qmatchpercent = SUtils.CompareString(this.Q, q2)
if (i === undefined || i.length === 0) { return qmatchpercent } else {
if (this.HasImage()) {
const imatchpercent = this.HasImage() ? SUtils.CompareString(this.I.join(' '), i.join(' '))
: 0
return (qmatchpercent + imatchpercent) / 2
} else {
qmatchpercent -= 30
if (qmatchpercent < 0) { return 0 } else { return qmatchpercent }
}
}
} else {
const qmatchpercent = SUtils.CompareString(this.Q, q2.Q)
const amatchpercent = SUtils.CompareString(this.A, q2.A)
if (this.I !== undefined) {
const imatchpercent = this.I === undefined ? SUtils.CompareString(this.I.join(' '), q2.I.join(
' ')) : 0
return (qmatchpercent + amatchpercent + imatchpercent) / 3
} else {
return (qmatchpercent + amatchpercent) / 2
}
}
}
}
class Subject {
constructor (n) {
assert(n)
this.Name = n
this.Questions = []
this.active = false
}
setIndex (i) {
this.index = i
}
getIndex () {
return this.index || -1
}
get length () {
return this.Questions.length
}
markActive () {
this.active = true
}
getIfActive () {
return this.active
}
AddQuestion (q) {
assert(q)
this.Questions.push(q)
}
getSubjNameWithoutYear () {
let t = this.Name.split(' - ')
if (t[0].match(/^[0-9]{4}\/[0-9]{2}\/[0-9]{1}$/i)) {
return t[1] || ''
} else {
return ''
}
}
getYear () {
let t = this.Name.split(' - ')[0]
if (t.match(/^[0-9]{4}\/[0-9]{2}\/[0-9]{1}$/i)) {
return t
} else {
return ''
}
}
Search (q, img) {
assert(q)
var r = []
for (let i = 0; i < this.length; i++) {
let percent = this.Questions[i].Compare(q, img)
if (percent > minMatchAmmount) {
r.push({
q: this.Questions[i],
match: percent
})
}
}
for (let i = 0; i < r.length; i++) {
for (var j = i; j < r.length; j++) {
if (r[i].match < r[j].match) {
var tmp = r[i]
r[i] = r[j]
r[j] = tmp
}
}
}
return r
}
toString () {
var r = []
for (var i = 0; i < this.Questions.length; i++) { r.push(this.Questions[i].toString()) }
return '+' + this.Name + '\n' + r.join('\n')
}
}
class QuestionDB {
constructor (getVal, setVal) {
this.Subjects = []
this.getVal = getVal
this.setVal = setVal
}
get length () {
return this.Subjects.length
}
get activeIndexes () {
var r = []
for (var i = 0; i < this.length; i++) {
if (this.getVal('Is' + i + 'Active')) {
r.push(i)
}
}
return r
}
GetIfActive (ind) {
return this.getVal('Is' + ind + 'Active')
}
ChangeActive (i, value) {
this.setVal('Is' + i + 'Active', !!value)
}
AddQuestion (subj, q) {
assert(subj)
var i = 0
while (i < this.Subjects.length && this.Subjects[i].Name !== subj) { i++ }
if (i < this.Subjects.length) { this.Subjects[i].AddQuestion(q) } else {
const n = new Subject(subj)
n.AddQuestion(q)
this.Subjects.push(n)
}
}
Search (q, img) {
assert(q)
var r = []
for (let i = 0; i < this.length; i++) {
if (this.GetIfActive(i)) { r = r.concat(this.Subjects[i].Search(q, img)) }
}
for (let i = 0; i < r.length; i++) {
for (var j = i; j < r.length; j++) {
if (r[i].match < r[j].match) {
var tmp = r[i]
r[i] = r[j]
r[j] = tmp
}
}
}
return r
}
AddSubject (subj) {
assert(subj)
var i = 0
while (i < this.length && subj.Name !== this.Subjects[i].Name) { i++ }
if (i < this.length) {
this.Subjects.concat(subj.Questions)
} else {
this.Subjects.push(subj)
}
}
toString () {
var r = []
for (var i = 0; i < this.Subjects.length; i++) { r.push(this.Subjects[i].toString()) }
return r.join('\n\n')
}
}
module.exports.StringUtils = StringUtils
module.exports.Question = Question
module.exports.Subject = Subject
module.exports.QuestionDB = QuestionDB