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Use PostCSS #37

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Sep 26, 2024
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Use PostCSS #37

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119 changes: 119 additions & 0 deletions constants.js
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Original file line number Diff line number Diff line change
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// https://github.com/gjtorikian/html-pipeline/blob/main/lib/html_pipeline/sanitization_filter.rb
export const ALLOW_TAGS = new Set([
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'br',
'b',
'i',
'strong',
'em',
'a',
'pre',
'code',
'img',
'tt',
'div',
'ins',
'del',
'sup',
'sub',
'p',
'picture',
'ol',
'ul',
'table',
'thead',
'tbody',
'tfoot',
'blockquote',
'dl',
'dt',
'dd',
'kbd',
'q',
'samp',
'var',
'hr',
'ruby',
'rt',
'rp',
'li',
'tr',
'td',
'th',
's',
'strike',
'summary',
'details',
'caption',
'figure',
'figcaption',
'abbr',
'bdo',
'cite',
'dfn',
'mark',
'small',
'source',
'span',
'time',
'wbr',
'body',
'html',
'g-emoji',
'input', // [type=checkbox], for task list
]);

export const ALLOW_CLASS = new Set([
'.anchor',
'.g-emoji',
'.highlight',
'.octicon',
'.octicon-link',
'.contains-task-list',
'.task-list-item',
'.task-list-item-checkbox',
// For Markdown alerts.
'.octicon-info',
'.octicon-light-bulb',
'.octicon-report',
'.octicon-alert',
'.octicon-stop',
'.markdown-alert',
'.markdown-alert-title',
'.markdown-alert-note',
'.markdown-alert-tip',
'.markdown-alert-important',
'.markdown-alert-warning',
'.markdown-alert-caution',
'.mr-2',
]);

const octicon = String.raw`<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' version='1.1' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg>`;

export const manuallyAddedStyle = `
.markdown-body .octicon {
display: inline-block;
fill: currentColor;
vertical-align: text-bottom;
}

.markdown-body h1:hover .anchor .octicon-link:before,
.markdown-body h2:hover .anchor .octicon-link:before,
.markdown-body h3:hover .anchor .octicon-link:before,
.markdown-body h4:hover .anchor .octicon-link:before,
.markdown-body h5:hover .anchor .octicon-link:before,
.markdown-body h6:hover .anchor .octicon-link:before {
width: 16px;
height: 16px;
content: ' ';
display: inline-block;
background-color: currentColor;
-webkit-mask-image: url("data:image/svg+xml,${octicon}");
mask-image: url("data:image/svg+xml,${octicon}");
}
`;
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