Parse Gmail Inbox to sheet

gistfile1.js

function extractData(data, startStr, endStr) {
  // This function extracts text between two strings
  // i.e. extractData("Good_news,_everyone!", "Good_", ",_Everyone!") will return "News"
  var startIndex, endIndex, text = 'N/A';
  
  startIndex = data.indexOf(startStr);
  
  if(startIndex != -1) {
    startIndex += startStr.length;
    text = data.substring(startIndex);
    
    if(endStr) {
      endIndex = text.indexOf(endStr);
      
      if(endIndex != -1) {
        text = text.substring(0, endIndex);
      } else {
        text = 'N/A';
      }
    }
  }
  return text;
}

function parseEmailMessages() {
  // var threads = GmailApp.search();
  // Have to get data separate to avoid google app script limit!
  var start = 0;
  var sheetId, sheet, threads, labelName, label;
  // SheetId is your google spreadsheet id
   
  labelName = 'Parsed';
  sheetId = 'abc1234567';
  label = GmailApp.getUserLabelByName(labelName)||GmailApp.createLabel(labelName);
  sheet = SpreadsheetApp.openById(sheetId).getSheets()[0];
  threads = GmailApp.search('in:inbox -label:'+labelName, start, 100);
  // Search query for messages without specific label
  
  for (var i = 0; i < threads.length; i++) {
    // Get the first email message of a threads
    var message = threads[i].getMessages()[0];
    var content = message.getPlainBody();
    // Get the plain text body of the email message
    // Note that for some types of messages getPlainBody() method may return null
    // in such cases consider using getRawContent() or getBody() methods and parse HTML

    if (content) {
      var date = message.getDate(),
        subject = message.getSubject(),
        sender = message.getFrom(),
        someData = extractData(content,"the", "."),
        name = extractData(content,"Name: ", "\n"),
        comment = content.match(/Comment:\s([^]+?)\n/);
        // You may prefer regex for parsing, then extra validation needed
        comment = (comment && comment[1]) ? comment[1]: 'N/A';
        // Add extra item to parse
      
      sheet.appendRow([date, subject, sender, someData, name, comment]);
      threads[i].addLabel(label);
      //add your label for parsed messages 
      
      Utilities.sleep(500);
    }// End if
  }// End for loop
}

Thank you! This code is incredibly helpful. I'm using getPlainBody to get the message contents but want to remove the signature portion. I've looked online but cannot find that info. Is that something you can help with? I will also speak with colleagues. Thank you for your time!