Function getHTMLFromAtext

src/node/utils/ExportHtml.ts:46–518

(pad:PadType, atext: AText, authorColors?: string[])

};

const getHTMLFromAtext = async (pad:PadType, atext: AText, authorColors?: string[]) => {
  const apool = pad.apool();
  const textLines = atext.text.slice(0, -1).split('\n');
  const attribLines = splitAttributionLines(atext.attribs, atext.text);

  const tags = ['h1', 'h2', 'strong', 'em', 'u', 's'];
  const props = ['heading1', 'heading2', 'bold', 'italic', 'underline', 'strikethrough'];

  await Promise.all([
    // prepare tags stored as ['tag', true] to be exported
    hooks.aCallAll('exportHtmlAdditionalTags', pad).then((newProps: string[]) => {
      newProps.forEach((prop) => {
        tags.push(prop);
        props.push(prop);
      });
    }),
    // prepare tags stored as ['tag', 'value'] to be exported. This will generate HTML with tags
    // like <span data-tag="value">
    hooks.aCallAll('exportHtmlAdditionalTagsWithData', pad).then((newProps: string[]) => {
      newProps.forEach((prop) => {
        // Attribute names/values here originate from the pad's attribute pool
        // (user content), so escape the value and constrain the data-* name
        // before interpolating, consistent with the escaping already applied to
        // exported URLs and text below.
        const dataName = String(prop[0]).replace(/[^a-zA-Z0-9_-]/g, '');
        tags.push(`span data-${dataName}="${Security.escapeHTMLAttribute(String(prop[1]))}"`);
        props.push(prop);
      });
    }),
  ]);

  // holds a map of used styling attributes (*1, *2, etc) in the apool
  // and maps them to an index in props
  // *3:2 -> the attribute *3 means strong
  // *2:5 -> the attribute *2 means s(trikethrough)
  const anumMap:MapArrayType<number> = {};
  let css = '';

  const stripDotFromAuthorID = (id: string) => id.replace(/\./g, '_');

  if (authorColors) {
    css += '<style>\n';

    for (const a of Object.keys(apool.numToAttrib)) {
      // @ts-ignore
      const attr = apool.numToAttrib[a];

      // skip non author attributes
      if (attr[0] === 'author' && attr[1] !== '') {
        // add to props array
        const propName = `author${stripDotFromAuthorID(attr[1])}`;
        const newLength = props.push(propName);
        anumMap[a] = newLength - 1;

        css += `.${propName} {background-color: ${authorColors[attr[1]]}}\n`;
      } else if (attr[0] === 'removed') {
        const propName = 'removed';
        const newLength = props.push(propName);