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https://let.hatelabo.jp/HinataYanagi/let/g5G2_emEiboz
2019-07-14T03:39:36Z
Enterキーで現在選択している単語の"次の単語"を選択。英文をテンポよく読むために。複雑なドキュメントでは上手く動かないかも。
HinataYanagi
[Let] read assist
<a href="javascript:%22https%3A%2F%2Flet.st-hatelabo.com%2FHinataYanagi%2Flet%2Fg5G2_emEiboz.bookmarklet.js%20%28arg%29%22.replace%28%2F%28%5CS%2B%29%5Cs%2B%28%5CS%2A%29%2F%2Cfunction%28s%2Curl%2Carg%29%7Bs%3Ddocument.createElement%28%22script%22%29%3Bs.charset%3D%22utf-8%22%3Bs.src%3Durl%2B%22%3Fs%3D%22%2BencodeURIComponent%28arg%29%3Bdocument.body.appendChild%28s%29%7D%29%3Bvoid%280%29%3B">read assist</a><pre>/*
* @title read assist
* @description Enterキーで現在選択している単語の"次の単語"を選択。英文をテンポよく読むために。複雑なドキュメントでは上手く動かないかも。
* @include http://*
* @license MIT License
* @require
*/
addEventListener("keydown", event => {
if (event.key != "Enter") return;
var walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT);
var selection = getSelection();
walker.currentNode = selection.anchorNode;
i = walker.currentNode.nodeValue.indexOf(" ", selection.focusOffset);
if (i == -1) {
while (walker.nextNode() != null && !/\S/.test(walker.currentNode.nodeValue));
}
i += 1;
if (walker.currentNode == null) return;
j = walker.currentNode.nodeValue.indexOf(" ", i + 1); console.log(i, j);
if (j == -1) j = walker.currentNode.nodeValue.length;
selection.setBaseAndExtent(walker.currentNode, i, walker.currentNode, j);
});</pre>