mirror of https://github.com/qortal/qortal-ui
AlphaX-Projects
2 years ago
7 changed files with 247 additions and 25 deletions
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// Author: irontiga <[email protected]>
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'use strict' |
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import { LitElement, html, css } from 'lit' |
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import * as WORDLISTS from './wordlists.js' |
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class RandomSentenceGenerator extends LitElement { |
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static get properties() { |
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return { |
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template: { |
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type: String, |
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attribute: 'template' |
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}, |
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parsedString: { |
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type: String |
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}, |
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fetchedWordlistCount: { |
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type: Number, |
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value: 0 |
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}, |
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capitalize: { |
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type: Boolean |
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}, |
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partsOfSpeechMap: { |
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type: Object |
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}, |
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templateEntropy: { |
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type: Number, |
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reflect: true, |
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attribute: 'template-entropy' |
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}, |
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maxWordLength: { |
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type: Number, |
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attribute: 'max-word-length' |
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} |
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} |
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} |
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constructor() { |
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super() |
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this.template = 'adjective noun verb adverb.' |
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this.maxWordLength = 0 |
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this.parsedString = '' |
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this.fetchedWordlistCount = 0 |
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this.capitalize = true |
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this.partsOfSpeechMap = { |
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'noun': 'nouns', |
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'adverb': 'adverbs', |
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'adv': 'adverbs', |
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'verb': 'verbs', |
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'interjection': 'interjections', |
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'adjective': 'adjectives', |
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'adj': 'adjectives', |
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'verbed': 'verbed' |
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} |
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this.partsOfSpeech = Object.keys(this.partsOfSpeechMap) |
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this._wordlists = WORDLISTS |
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} |
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updated(changedProperties) { |
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let regen = false |
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if (changedProperties.has('template')) { |
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regen = true |
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} |
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if (changedProperties.has('maxWordLength')) { |
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console.dir(this.maxWordLength) |
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if (this.maxWordLength) { |
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const wl = { ...this._wordlists } |
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for (const partOfSpeech in this._wordlists) { |
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console.log(this._wordlists[partOfSpeech]) |
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if (Array.isArray(this._wordlists[partOfSpeech])) { |
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wl[partOfSpeech] = this._wordlists[partOfSpeech].filter(word => word.length <= this.maxWordLength) |
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} |
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} |
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this._wordlists = wl |
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} |
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regen = true |
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} |
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if (regen) this.generate() |
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} |
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_RNG(entropy) { |
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if (entropy > 1074) { |
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throw new Error('Javascript can not handle that much entropy!') |
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} |
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let randNum = 0 |
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const crypto = window.crypto || window.msCrypto |
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if (crypto) { |
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const entropy256 = Math.ceil(entropy / 8) |
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let buffer = new Uint8Array(entropy256) |
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crypto.getRandomValues(buffer) |
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randNum = buffer.reduce((num, value) => { |
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return num * value |
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}, 1) / Math.pow(256, entropy256) |
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} else { |
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console.warn('Secure RNG not found. Using Math.random') |
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randNum = Math.random() |
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} |
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return randNum |
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} |
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setRNG(fn) { |
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this._RNG = fn |
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} |
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_captitalize(str) { |
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return str.charAt(0).toUpperCase() + str.slice(1) |
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} |
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getWord(partOfSpeech) { |
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const words = this._wordlists[this.partsOfSpeechMap[partOfSpeech]] |
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const requiredEntropy = Math.log(words.length) / Math.log(2) |
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const index = this._RNG(requiredEntropy) * words.length |
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return { |
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word: words[Math.round(index)], |
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entropy: words.length |
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} |
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} |
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generate() { |
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this.parsedString = this.parse(this.template) |
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} |
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parse(template) { |
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const split = template.split(/[\s]/g) |
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let entropy = 1 |
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const final = split.map(word => { |
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const lower = word.toLowerCase() |
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this.partsOfSpeech.some(partOfSpeech => { |
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const partOfSpeechIndex = lower.indexOf(partOfSpeech) // Check it exists
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const nextChar = word.charAt(partOfSpeech.length) |
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if (partOfSpeechIndex === 0 && !(nextChar && (nextChar.match(/[a-zA-Z]/g) != null))) { |
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const replacement = this.getWord(partOfSpeech) |
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word = replacement.word + word.slice(partOfSpeech.length) // Append the rest of the "word" (punctuation)
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entropy = entropy * replacement.entropy |
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return true |
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} |
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}) |
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return word |
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}) |
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this.templateEntropy = Math.floor(Math.log(entropy) / Math.log(8)) |
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return final.join(' ') |
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} |
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render() { |
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return html` |
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${this.parsedString} |
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` |
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} |
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} |
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customElements.define('random-sentence-generator', RandomSentenceGenerator) |
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export default RandomSentenceGenerator |
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@ -0,0 +1,36 @@
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// Sourced from https://gist.github.com/letsgetrandy/1e05a68ea74ba6736eb5
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export const EXCEPTIONS = { |
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'are': 'were', |
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'eat': 'ate', |
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'go': 'went', |
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'have': 'had', |
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'inherit': 'inherited', |
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'is': 'was', |
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'run': 'ran', |
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'sit': 'sat', |
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'visit': 'visited' |
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} |
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export const getPastTense = (verb, exceptions = EXCEPTIONS) => { |
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if (exceptions[verb]) { |
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return exceptions[verb] |
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} |
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if ((/e$/i).test(verb)) { |
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return verb + 'd' |
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} |
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if ((/[aeiou]c$/i).test(verb)) { |
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return verb + 'ked' |
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} |
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// for american english only
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if ((/el$/i).test(verb)) { |
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return verb + 'ed' |
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} |
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if ((/[aeio][aeiou][dlmnprst]$/).test(verb)) { |
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return verb + 'ed' |
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} |
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if ((/[aeiou][bdglmnprst]$/i).test(verb)) { |
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return verb.replace(/(.+[aeiou])([bdglmnprst])/, '$1$2$2ed') |
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} |
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return verb + 'ed' |
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} |
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