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export const figureCaption = function (service: TurndownService): void {
    service.addRule('stackOverflowHighlightedCodeBlock', {
        filter: function (node: HTMLElement, options: Options): boolean | null {
            const firstChild = node.firstChild
            const lastChild = node.lastChild
            return (
                node.nodeName === 'FIGURE' &&
                firstChild && firstChild.nodeName === 'IMG' &&
                lastChild && lastChild.nodeName === 'FIGCAPTION'
            )

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import TurndownService from "turndown";

export const stackOverflowHighlightedCodeBlock = function (service: TurndownService): void {
    const highlightRegExp = /lang-([a-z0-9]+)/

    service.addRule('stackOverflowHighlightedCodeBlock', {
        filter: function (node: HTMLElement, options: Options): boolean | null {
            const firstChild = node.firstChild
            return (
                node.nodeName === 'PRE' &&

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{{/* If you are using a CSP header this is how you can whitelist the inline-script */}}
{{/* its not optimal since it only changes every day and only if you regenerate the site */}}

{{ $currentDayNonce := now | time.Format "2006-01-02" | md5 }}

<meta http-equiv="Content-Security-Policy"
    content="default-src 'self';
    script-src 'self' 'nonce-{{ $currentDayNonce }}';
    img-src 'self';"
/>

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GSAP 404 typed message using SplitText

A Pen by Patrick Favre-Bulle on CodePen.

License.

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package at.favre.lib.bytes.otherPackage;

import org.junit.Test;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.GCMParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;

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Proposed Lengths for ID Encryption Schema

32-bit Integer

Integer	Value	MAC	Version	Randomization	Sum	Base64/Base32
deterministic	4 byte	12 byte	1 byte	-	17 byte (136 bit)	22/27
randomized	4 byte	12 byte	1 byte	10 byte	27 byte (216 bit)	36/43

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## Binary

    ┌─────────────────┬──────────────────────────────────────────────────────────────────┐
    │ Efficiency      │ 12.5 % (1 bit/char), 1 bit segments                              │
    │ 32/64/128 bit   │ 1-32/1-64/1-128 chars                                            │
    │ Padding         │ false                                                            │
    │ Const. Out. Len.│ false                                                            │
    │ Suited for      │ number encoding, debugging                                       │
    │ Alphabet        │ 01                                                               │
    │ Known Usages    │ none                                                             │

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import at.favre.lib.bytes.Bytes;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;

import java.util.concurrent.TimeUnit;

@SuppressWarnings("CheckStyle")
@State(Scope.Thread)
@Fork(1)
@Warmup(iterations = 2, time = 4)

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## Random Data

Original size: 			1024 byte
Compressed size (raw): 	1047 byte

      Name	       enc	 diff	   %	  enc-comp	 diff
------------------------------------------------------------------
    base85	      1280	  256	  23%	      1076	   29	   2%
    base64	      1366	  342	  31%	      1073	   26	   2%
    base36	      1585	  561	  51%	      1082	   35	   3%

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byte[] key = Bytes.random(16).array();
long id = ...

IdMask<Long> idMask = IdMasks.forLongIds(Config.builder(key).build());

String maskedId = idMask.mask(id);
//example: NPSBolhMyabUBdTyanrbqT8
long originalId = idMask.unmask(maskedId);