Extract lawyers from http://www.uscourts.cavc.gov/public_list.php

cavc_extract.js

function extract() {
  let EMAIL_REGEX = /[^@^\s]+@([^\s]+)/;
  let resultsEl = document.getElementById("results");

  let data = resultsEl.innerHTML.split('<b>');
  data.shift(); data.shift();
  let entries = data.map(function(t) { 
    let fields = t.split('<br>');
    fields = fields.map(function(t) { 
      return t.replaceAll(/<[^>]+>/g, '')
        .replaceAll(/\n/g, ''); 
    });
    let addressR = fields.find(function(t) {
      return /([^,]+), CA/.test(t);
    });
    let emailR = fields.find(function(t) {
      return EMAIL_REGEX.exec(t);
    });
    let name = fields[0];
    let address =  `${fields[1]}\n${fields[2]}`;
    let emailMatches = EMAIL_REGEX.exec(emailR)
    let email = emailMatches ? emailMatches[0] : null;
    let domain = emailMatches ? emailMatches[1] : null;
    let city = addressR ? (/([^,]+),/.exec(addressR)[1]) : null;
    let zip = addressR ? (/([\d]+)\s*$/.exec(addressR)[1]) : null;

    return { name, email, domain, address, city, zip };
  });

  return entries;
}

function createDirectory(entries) {
  let domains = new Map();
  entries.forEach(function(e) { domains.set(e.domain, 0) });
  entries.forEach(function(e) { domains.set(e.domain, domains.get(e.domain) + 1) });
  let domainsSorted = Array.from(domains.keys());
  domainsSorted.sort(function(a, b) { 
    return domains.get(b) - domains.get(a);
  });
  return domainsSorted.map(function(d) {
    return {
      domain: d,
      count: domains.get(d),
      entries: entries.filter(function(e) { return e.domain === d })
    }
  });
}

let entries = extract();
let dir = createDirectory(entries);
console.log(JSON.stringify(entries));
console.log(JSON.stringify(dir));