diff-encrypt

diff-encrypt 使用diff算法，对文本等加密和还原，用于文档提交等，目标已存在旧副本的情况。 The diff algorithm is used to encrypt and restore the text, which is used for document submission, etc. the old copy of the target already exists.

NPM

npm install diff-encrypt --save

yarn add diff-encrypt

DMEO-js

import {
  // 加密
  endiff,
  // 解密 
  dediff,
  // 所有换行符修改为\n 
  ignoreFeedLine
} from 'diff-encrypt';

const oldText = `// 旧的数据有中文;
const getNotword = (src: string, dist: string): string => {
  // 查找notword, 找出都不包含的字符串
  const srcDist = src + dist;
  const notword = config.notwords.find((v: string) => {
    return srcDist.indexOf(v) === -1;
  });
  return notword;
};`;

const newText = `// delete all chinese;
const getNotword = (src: string, dist: string): string => {
  // notword, 
  const srcDist = src + dist;
  const notword = config.notwords.find((v: string) => {
    return srcDist.indexOf(v) === -1;
  });
  return notword;
};`;

const diffResult = endiff(oldText, newText);
const originStr = dediff(oldText, diffResult.result);
// α10α67α98α151αα// delete all chineseαnotword, α
console.log(diffResult.result);
// true
console.log(originStr.result === ignoreFeedLine(newText), diffResult.compressibility);

DMEO-java

上传到maven出现问题，请执行复制java/*目录下的文件

package com.zmbeex.diffencrypt

import org.junit.jupiter.api.Test
import org.springframework.boot.test.context.SpringBootTest

@SpringBootTest
class DiffEncryptApplicationTests {

	@Test
	fun contextLoads() {

		val oldText = """// 旧的数据有中文;
const getNotword = (src: string, dist: string): string => {
  // 查找notword, 找出都不包含的字符串
  const srcDist = src + dist;
  const notword = config.notwords.find((v: string) => {
    return srcDist.indexOf(v) === -1;
  });
  return notword;
};""";

		val newText = """// delete all chinese;
const getNotword = (src: string, dist: string): string => {
  // notword, 
  const srcDist = src + dist;
  const notword = config.notwords.find((v: string) => {
    return srcDist.indexOf(v) === -1;
  });
  return notword;
};""";

		var diff = DiffEncrypt();
		var result: EnResult = diff.endiff(oldText, newText);
		println("===========================")
		println(result.errMsg + ">>>>>>>>>>>>>")
		println(result.result + ">>>>>>>>>>>>>")
		println(result.compressibility + "<<<<<<<<<<<<<<<<<<")

		var deResult = diff.dediff(oldText, result.result)
		println("==============================")
		println(diff.isValid(newText, deResult.result))
		println(deResult.errMsg + ">>>>>>>>>>>>>")
		println(deResult.result + ">>>>>>>>>>>>>")
	}
}

CONFIG

// declare const config: {
//     notwords: string[];
//     minBlockLength: number;
//     ignoreLineBreak: boolean;
// };
import { config } from 'diff-encrypt';
// 查找未目标字符，可以设置
config.notwords = 'αβγδεζηθικλμνξοπρστυφχψω∫∮∝∞∧∨∑∏∪∩∈姖姗姘姙姛姝姞姟姠姡'.split('');
// 设置最小块长度
config.minBlockLength = 10;
// 是否忽略换行符,true时，将所有\r\n和\r转换成为\n
config.ignoreLineBreak = true

TEST

node ./diff_demo.js