Tidied up Lorem Ipsum op

This commit is contained in:
n1474335 2019-01-09 16:36:34 +00:00
parent 0e601d5b5f
commit c49a770c59
4 changed files with 58 additions and 44 deletions

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@ -2,6 +2,9 @@
All major and minor version changes will be documented in this file. Details of patch-level version changes can be found in [commit messages](https://github.com/gchq/CyberChef/commits/master).
### [8.20.0] - 2019-01-09
- 'Generate Lorem Ipsum' operation added [@klaxon1] | [#455]
### [8.19.0] - 2018-12-30
- UI test suite added to confirm that the app loads correctly in a reasonable time and that various operations from each module can be run [@n1474335] | [#458]
@ -88,6 +91,7 @@ All major and minor version changes will be documented in this file. Details of
[8.20.0]: https://github.com/gchq/CyberChef/releases/tag/v8.20.0
[8.19.0]: https://github.com/gchq/CyberChef/releases/tag/v8.19.0
[8.18.0]: https://github.com/gchq/CyberChef/releases/tag/v8.18.0
[8.17.0]: https://github.com/gchq/CyberChef/releases/tag/v8.17.0
@ -159,4 +163,5 @@ All major and minor version changes will be documented in this file. Details of
[#446]: https://github.com/gchq/CyberChef/pull/446
[#448]: https://github.com/gchq/CyberChef/pull/448
[#449]: https://github.com/gchq/CyberChef/pull/449
[#455]: https://github.com/gchq/CyberChef/pull/455
[#458]: https://github.com/gchq/CyberChef/pull/458

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@ -374,9 +374,9 @@
"Generate QR Code",
"Parse QR Code",
"Haversine distance",
"Generate Lorem Ipsum",
"Numberwang",
"XKCD Random Number",
"Lorem Ipsum Generator"
"XKCD Random Number"
]
},
{

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@ -2,16 +2,16 @@
* Lorem Ipsum generator.
*
* @author Klaxon [klaxon@veyr.com]
* @copyright Crown Copyright 2016
* @copyright Crown Copyright 2018
* @license Apache-2.0
*/
/**
* generate lorem ipsum paragraphs.
*
* @param {number} length
* @returns {string}
*/
/**
* Generate lorem ipsum paragraphs.
*
* @param {number} length
* @returns {string}
*/
export function GenerateParagraphs(length=3) {
const paragraphs = [];
while (paragraphs.length < length) {
@ -29,12 +29,13 @@ export function GenerateParagraphs(length=3) {
return paragraphs.join("");
}
/**
* generate lorem ipsum sentences.
*
* @param {number} length
* @returns {string}
*/
* Generate lorem ipsum sentences.
*
* @param {number} length
* @returns {string}
*/
export function GenerateSentences(length=3) {
const sentences = [];
while (sentences.length < length) {
@ -46,12 +47,13 @@ export function GenerateSentences(length=3) {
return paragraphs.join("");
}
/**
* generate lorem ipsum words.
*
* @param {number} length
* @returns {string}
*/
* Generate lorem ipsum words.
*
* @param {number} length
* @returns {string}
*/
export function GenerateWords(length=3) {
const words = getWords(length);
const sentences = wordsToSentences(words);
@ -59,19 +61,21 @@ export function GenerateWords(length=3) {
return paragraphs.join("");
}
/**
* generate lorem ipsum bytes.
*
* @param {number} length
* @returns {string}
*/
/**
* Generate lorem ipsum bytes.
*
* @param {number} length
* @returns {string}
*/
export function GenerateBytes(length=3) {
const str = GenerateWords(length/3);
return str.slice(0, length);
}
/**
* get array of randomly selected words from the lorem ipsum wordList.
* Get array of randomly selected words from the lorem ipsum wordList.
*
* @param {number} length
* @returns {string[]}
@ -84,16 +88,16 @@ function getWords(length=3) {
while (words.length < length){
do {
word = wordList[Math.floor(Math.random() * wordList.length)];
}
while (previousWord === word);
} while (previousWord === word);
words.push(word);
previousWord = word;
}
return words;
}
/**
* convert an array or words into an array of sentences"
* Convert an array of words into an array of sentences
*
* @param {string[]} words
* @returns {string[]}
@ -112,8 +116,9 @@ function wordsToSentences(words) {
return sentences;
}
/**
* convert an array or sentences into an array of paragraphs"
* Convert an array of sentences into an array of paragraphs
*
* @param {string[]} sentences
* @returns {string[]}
@ -130,15 +135,16 @@ function sentencesToParagraphs(sentences) {
return paragraphs;
}
/**
* format an array of words into a sentence.
* Format an array of words into a sentence.
*
* @param {string[]} words
* @returns {string}
* @private
*/
function formatSentence(words) {
//0.35 chance of a comma being added randomly to the sentence.
// 0.35 chance of a comma being added randomly to the sentence.
if (Math.random() < PROBABILITY_OF_A_COMMA) {
const pos = Math.round(Math.random()*(words.length-1));
words[pos] +=",";
@ -149,8 +155,9 @@ function formatSentence(words) {
return sentence;
}
/**
* format an array of sentences into a paragraph
* Format an array of sentences into a paragraph.
*
* @param {string[]} sentences
* @returns {string}
@ -162,10 +169,11 @@ function formatParagraph(sentences) {
return paragraph;
}
/**
* get a random number based on a mean and standard deviation.
* Get a random number based on a mean and standard deviation.
*
* @param {number} Mean
* @param {number} mean
* @param {number} stdDev
* @returns {number}
* @private
@ -174,13 +182,13 @@ function getRandomLength(mean, stdDev) {
let length;
do {
length = Math.round((Math.random()*2-1)+(Math.random()*2-1)+(Math.random()*2-1)*stdDev+mean);
}
while (length <= 0);
} while (length <= 0);
return length;
}
/**
* replace first 5 words with "Lorem ipsum dolor sit amet"
* Replace first 5 words with "Lorem ipsum dolor sit amet"
*
* @param {string[]} str
* @returns {string[]}
@ -200,6 +208,7 @@ function replaceStart(str) {
}
}
const SENTENCE_LENGTH_MEAN = 15;
const SENTENCE_LENGTH_STD_DEV = 9;
const PARAGRAPH_LENGTH_MEAN = 5;

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@ -9,17 +9,17 @@ import OperationError from "../errors/OperationError";
import { GenerateParagraphs, GenerateSentences, GenerateWords, GenerateBytes } from "../lib/LoremIpsum";
/**
* Lorem Ipsum Generator operation
* Generate Lorem Ipsum operation
*/
class LoremIpsumGenerator extends Operation {
class GenerateLoremIpsum extends Operation {
/**
* LoremIpsumGenerator constructor
* GenerateLoremIpsum constructor
*/
constructor() {
super();
this.name = "Lorem Ipsum Generator";
this.name = "Generate Lorem Ipsum";
this.module = "Default";
this.description = "Generate varying length lorem ipsum placeholder text.";
this.infoURL = "https://wikipedia.org/wiki/Lorem_ipsum";
@ -60,11 +60,11 @@ class LoremIpsumGenerator extends Operation {
case "Bytes":
return GenerateBytes(length);
default:
throw new OperationError("invalid lengthType");
throw new OperationError("Invalid length type");
}
}
}
export default LoremIpsumGenerator;
export default GenerateLoremIpsum;