Exclude Teacher's Editions from Half and Amazon

This script looks at your titles and notes and excludes items from being sent to Half/Amazon if either the title or notes contain any of the following (in any character-case):

• teacher's edition
• teachers' edition
• teachers edition
• teacher edition
• instructor's edition
• instructors' edition
• instructors edition
• instructor edition
• advance reading
• proof       (whole word - not part of a word)

if (marketplace == 'Half' || marketplace == 'Amazon') {
  pat = /(teacher|instructor)'?s?'? edition|advance reading|\bproof\b/i;
  if (item.title.match(pat) || item.note.match(pat)) return 0;
}