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Copy SteamDB Changelog as BBcode

Adds a button to copy changelog

How to install

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

How to install

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!) 

// ==UserScript==
// @name         Copy SteamDB Changelog as BBcode
// @namespace    none
// @version      5
// @description  Adds a button to copy changelog
// @author       ingts
// @match        https://steamdb.info/patchnotes/*
// @grant        GM_setClipboard
// ==/UserScript==

function html2bb(str) {
    if (!str) return ""
    str = str.replace(/<p><\/p>/g, '\n')
    str = str.replace(/<p>(.*)<\/p>/g, '$1\n')
    str = str.replace(/<ul>/g, '')
    str = str.replace(/<\/ul>/g, '')
    str = str.replace(/<li>/g, "[*]")
    str = str.replace(/<li>\n/g, "[*]")
    str = str.replace(/<li>\n<p>(.*)<\/p>\n<ul>/g, '$1') // dont bullet first parent of nested list
    str = str.replace(/<li>\n<p><strong>(.*)<\/strong>\s*<\/p>\s*<\/li>/g, '[*][b]$1[/b]')
    str = str.replace(/< *br *\/*>/g, "\n\n") //*/
    str = str.replace(/<hr\n?>/g, "\n") //*/
    str = str.replace(/< *b *>/g, "[b]")
    str = str.replace(/< *\/ *b *>/g, "[/b]")
    str = str.replace(/< *u *>/g, "[u]")
    str = str.replace(/< *\/ *u *>/g, "[/u]")
    str = str.replace(/< *i *>/g, "[i]")
    str = str.replace(/< *\/ *i *>/g, "[/i]")
    str = str.replace(/< *strong *>/g, "[b]")
    str = str.replace(/< *\/ *strong *>/g, "[/b]")
    str = str.replace(/< *em *>/g, "[i]")
    str = str.replace(/< *\/ *em *>/g, "[/i]")
    str = str.replace(/< *\/ *li *>/g, "")
    str = str.replace(/< *ul *class=\\*\"bb_ul\\*\" *>/g, "")
    str = str.replace(/< *\/ *ul *>/g, "")
    str = str.replace(/< *h2 *class=\"bb_tag\" *>/g, "\n[align=center][u][b]")
    str = str.replace(/< *h[12] *>/g, "\n[align=center][u][b]")
    str = str.replace(/< *\/ *h[12] *>/g, "[/b][/u][/align]\n")
    str = str.replace(/&quot;/g, "\"")
    str = str.replace(/&amp;/g, "&")
    str = str.replace(/< *img *src="([^"]*)".*>/g, "\n")
    str = str.replace(/< *a [^>]*>/g, "")
    str = str.replace(/< *\/ *a *>/g, "")
    str = str.replace(/< *p *>/g, "")
    str = str.replace(/< *\/ *p *>/g, "")
    str = str.replace(/“/g, "\"")
    str = str.replace(/”/g, "\"")
    str = str.replace(/  +/g, " ")
    str = str.replace(/\n +/g, "\n")
    str = str.replace(/\n\n\n+/gm, "\n\n")
    str = str.replace(/\[\/b]\[\/u]\[\/align]\n\n/g, "[/b][/u][/align]\n")
    str = str.replace(/\n\n\[\*]/g, "\n[*]")
    str = str.replace(/<ul>\n/g, '')
    str = str.replace(/<h\d.*>(.*?)<\/h\d>/g, '[b]$1[/b]')
    // str = str.replace(/\[*]\n/g, '[*]')
    str = str.replace(/<lite-youtube.*>.*<\/lite-youtube>\n?/gs, '')
    str = str.replace(/https:\/\/store.steampowered.com.*\n?\n?/g, '')
    return str
}

const button = document.createElement('button')
button.textContent = 'Copy changelog as BBcode'
document.querySelector('.patchnotes-metadata').querySelector('.hint-with-octicon:nth-of-type(3)').after(button)
button.addEventListener('click', () => {
    const patchnotes = document.querySelector('.patchnotes-official')
    GM_setClipboard('[hide=Changelog]' + html2bb(patchnotes.innerHTML) + '[/hide]')
    button.textContent = 'Copied'
})