async function exportSentence() {
	var inputHTML = document.getElementById("query-parser-content");
	var output = "";

	var selection = window.getSelection();
	// TODO: fix right-to-left selected text

	for (var child of inputHTML.children) {
		for (var subchild of child.childNodes) {
			if (subchild.nodeName == '#text') {
				for (var i in subchild.textContent) {
					if (selection.anchorNode == subchild && i == selection.anchorOffset) output += "*";
					output += subchild.textContent[i];
					if (selection.focusNode == subchild && i == selection.focusOffset - 1) output += "*";
				}
				continue;
			}
			if (subchild.nodeName == 'RUBY') {
				if (selection.anchorNode.parentNode.parentNode == subchild) output += "*";
				output += `[${subchild.childNodes[0].innerText}](${subchild.childNodes[1].innerText})`;
				if (selection.focusNode.parentNode.parentNode == subchild) output += "*";
				continue;
			}
		}
	}

	escapeYomichanCopy(output);

	return output;
}

function patchSearchBar() {
	var searchBarOuter = document.getElementsByClassName("search-textbox-container")[0];
	var button = document.createElement("button");
	button.id = "anki-sentence-export-button";
	button.classList.add("search-button");
	button.onclick = exportSentence;
	var icon = document.createElement("span");
	icon.classList.add("icon");
	icon.setAttribute("data-icon", "copy");
	button.appendChild(icon);
	searchBarOuter.insertBefore(button, searchBarOuter.childNodes[2]);
}

(() => {
	if (document.body.classList.contains("patched")) return;

	patchSearchBar();

	document.body.classList.add("patched");
})();