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content.js
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content.js
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String.prototype.capitalize = function (lower) {
return (lower ? this.toLowerCase() : this).replace(/(?:^|\s)\S/g, function (a) { return a.toUpperCase(); });
};
const authorSeparators = [" - ", "by"];
function splitAuthor(title) {
let obj = {
title: title,
author: ""
}
let a = title.toLowerCase();
for (let divider of authorSeparators) {
if (a.indexOf(divider) < 0) continue;
let splitted = a.split(divider);
if (obj.title === title) obj.title = splitted[0].capitalize(true).trim();
obj.author = splitted[splitted.length - 1].capitalize(true).trim();
}
return obj;
}
function getAuthorLDJSON(authObj) {
const authOptions = ["name"];
if (authObj.constructor === String) return authObj;
for (let ao of authOptions) {
if (ao in authObj) return authObj[ao];
}
return "";
}
function parseLDJSON(jsondata) {
let obj = {}
try {
let data = JSON.parse(jsondata);
if (data["@type"] === "Organization") return obj;
obj.date = new Date(data["datePublished"]);
obj.title = data["headline"];
obj.author = getAuthorLDJSON(data["author"]);
// };
return obj;
}
catch (e) {
return;
}
}
function quote() {
let titleAuthor = splitAuthor(document.title);
let title = titleAuthor.title;
let author = titleAuthor.author;
let date = new Date();
let url = document.URL;
let ldjson = document.querySelectorAll('script[type="application/ld+json"]');
if (ldjson.length > 0) {
for (let scrpt of ldjson) {
let obj = parseLDJSON(scrpt.innerHTML);
if (typeof obj !== "undefined" && Object.keys(obj).length > 0 && obj.constructor === Object) {
title = obj.title;
author = obj.author;
date = obj.date
}
}
}
let retVal = `@misc{${author.slice(0, 4).toLowerCase()}${date.getFullYear()}${title.slice(0, 4).toLowerCase()},
title={${title}},
author={${author}},
year={${date.getFullYear()}},
month={${date.getMonth() + 1}},
url={${url}}
}`;
return retVal;
}
function copyToClipboard(text) {
const input = document.createElement('textarea');
input.style.position = 'fixed';
input.style.opacity = 0;
input.value = text;
document.body.appendChild(input);
input.select();
document.execCommand('Copy');
document.body.removeChild(input);
};
copyToClipboard(quote());