Removes excessive spacing between paragraphs on AO3.
// ==UserScript==
// @name AO3 Fix Paragraph Spacing
// @namespace ao3-remove-double-spacing
// @version 1.7
// @description Removes excessive spacing between paragraphs on AO3.
// @author yuube
// @match http*://*.archiveofourown.org/*
// @icon https://www.google.com/s2/favicons?domain=archiveofourown.org
// @grant none
// ==/UserScript==
(function () {
'use strict';
function hasMedia (el) {
var mediaWhitelist = [
'IMG',
'EMBED',
'IFRAME',
'VIDEO'
];
var whitelisted = false;
mediaWhitelist.forEach(item => {
if (el.tagName === item || el.querySelector(item)) {
whitelisted = true;
};
});
return whitelisted
};
function naturallyEmpty (el) {
var emptyWhitelist = [
'HR'
];
var whitelisted = false;
var tagName = el.tagName;
if (tagName === 'BR') {
return true
}
emptyWhitelist.forEach(item => {
if (tagName === item || el.querySelector(item)) {
whitelisted = true;
};
});
return whitelisted
};
/** Reduce trailing 's */
function removeWhitespace (el) {
const iterator = document.createNodeIterator(el, window.NodeFilter.SHOW_TEXT);
var textNode;
while (textNode = iterator.nextNode()) {
textNode.textContent = textNode.textContent.replace(/(\u00A0){2,}$/, '\u00A0');
}
}
function removeEmptyElement (el) {
const content = el.textContent && el.textContent.replace(/\u00A0/g, '').trim();
if (!content) {
if (hasMedia(el) || naturallyEmpty(el)) {
return
}
el.remove();
return
}
removeWhitespace(el);
};
function reduceBrs (userstuff) {
var el = userstuff.querySelector('br + br + br');
while (el) {
el.remove();
el = userstuff.querySelector('br + br + br');
}
}
function stripTrailingBrs (el) {
while (el.lastChild && el.lastChild.tagName === 'BR') {
el.lastChild.remove();
}
}
function stripLeadingBrs (el) {
while (el.firstChild && el.firstChild.tagName === 'BR') {
el.firstChild.remove();
}
}
const parent = document.querySelectorAll('.userstuff');
parent.forEach(userstuff => {
const allowedTags = [
'a',
'abbr',
'acronym',
'address',
'b',
'big',
'blockquote',
'caption',
'center',
'cite',
'code',
'col',
'colgroup',
'dd',
'del',
'details',
'dfn',
'div',
'dl',
'dt',
'em',
'figcaption',
'figure',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'i',
'img',
'ins',
'kbd',
'li',
'ol',
'p',
'pre',
'q',
'rp',
'rt',
'ruby',
's',
'samp',
'small',
'span',
'strike',
'strong',
'sub',
'summary',
'sup',
'table',
'tbody',
'td',
'tfoot',
'th',
'thead',
'tr',
'tt',
'u',
'ul',
'var',
':empty'
]
allowedTags.forEach(el => {
userstuff.querySelectorAll(el).forEach((child) => {
stripLeadingBrs(child);
stripTrailingBrs(child);
removeEmptyElement(child);
})
});
reduceBrs(userstuff);
});
})();