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Page: Use OPTGROUP in SELECT
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index.html
15
index.html
@ -64,19 +64,24 @@ By <a target=_blank href="mailto:inexorabletash@gmail.com">Joshua Bell</a>
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})
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.then(text => {
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const select = document.querySelector('#lb_files');
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let group;
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text.split(/\r?\n/g).forEach(line => {
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line = line.replace(/^\s+|\s+$/, '');
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if (!line.length) return;
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if (line.startsWith('#')) {
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line = line.replace(/^#\s+/, '');
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select.appendChild(Object.assign(
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document.createElement('option'),
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{disabled: true, innerText: line }));
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if (line.startsWith('___')) {
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select.appendChild(document.createElement('hr'));
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} else {
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group = Object.assign(document.createElement('optgroup'),
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{label: line});
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select.appendChild(group);
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}
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} else {
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const match = line.match(/^(\S+)\s+(.*)$/);
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select.appendChild(Object.assign(
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group.appendChild(Object.assign(
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document.createElement('option'),
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{value: match[1], innerText: '\xA0\xA0' + match[2]}));
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{value: match[1], innerText: match[2]}));
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}
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});
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});
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