Google Apps Script: Send converted documents from Gmail to Evernote

google_apps_script.js

/*
 * reMarkable Text to Evernote
 */

 
const EMAIL_ADDRESS = 'email+notes@gmail.com';
const EVERNOTE_ADDRESS = "email-address@m.evernote.com"

const REMARKABLE_LABEL = GmailApp.getUserLabelByName('remarkable-stored')

// regex for parsing
const NOTEBOOK_REGEX = /(\[@[a-zA-Z0-9 ]+\])+/g;
const TAGS_REGEX = /(#[ a-zA-Z0-9,.:;-]+)+/g;
const TITLE_REGEX = /(=[a-zA-Z0-9,. ]+)+/g;
const REMINDER_REGEX = /(\+[a-zA-Z0-9 \-\/]+)+/g;

function PushToEvernote(){
  const BASE_QUERY = `in:inbox to:${EMAIL_ALIAS} is:unread`;

  const results = GmailApp.search(BASE_QUERY);

  results.map( thread => {
    const message = thread.getMessages()[0]
    
    // get content of note from the body
    const content = message.getPlainBody()

    // parse the notebook, title, tags, and reminders
    const notebookResult = content.match(NOTEBOOK_REGEX)
    const titleResult = content.match(TITLE_REGEX)
    const tagsResult = content.match(TAGS_REGEX)
    const reminderResult = content.match(REMINDER_REGEX)

    // filter out symbols from notebook name
    const name = notebookResult && notebookResult[0].replaceAll(/([\[\] ]+)+/g, "").toLowerCase() || ""

    // filter out symbols from title
    const title = titleResult && titleResult[0].replaceAll(/(=[\[\] ]+)+/g, "") || ""

    // filter out spaces between word and # if any, join multiple as space delimited
    const tags = tagsResult && tagsResult.map(tag => tag.replace(/(#[ ])\w+/, "").toLowerCase()).join(" ") || ""

    // filter reminder and swap + for !
    const reminder = reminderResult && reminderResult[0].replace("+", "!").replace(" ", "").toLowerCase() || ""

    // set up evernote structured subject line
    const subject = `${title} ${reminder} ${name} ${tags} +`

    MailApp.sendEmail(EVERNOTE_ADDRESS, subject, content)
    message.markRead()
    thread.addLabel(REMARKABLE_LABEL)
    thread.moveToArchive()
  })
}