parse google document for text and copy result to sheet - regex

Question

I wish to parse a series of documents in a Google Drive folder using regular expressions.
The documents contain equipment model and serial numbers. I wish to then copy the results to a google sheet row by row. I have managed a similar task with emails successfully but to no avail with google docs.
Can anyone offer some guidance. I have tested the regular expressions in the 'find and replace' menu in google docs and they work fine. The following is simply an attempt to see if I can capture some data and write it to a cell in the active sheet.
function write() {
var ss= SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
var doc =
DocumentApp.openById('1ZNqJjSJo1wkD3eaCRTY64g98hYEY77D4MDU6XpvA4MI');
var body = doc.getBody();
var text = body.findText('(\W|^)GSS\d{2}H(\W|$)')
ss.getRange(1,1).setValue(text);
}

Answer 1

You want to retrieve all values matched by (\W|^)GSS\d{2}H(\W|$) in the document, and put the result to spreadsheet with row by row. If my understanding is correct, how about this modification? I think that there are several answers for your situation. So please think of this as one of them.
Modification points :
Retrieve text from document.
Retrieve all matched values using the regex.
For this situation, I used RegExp#exec.
Put the result to spreadsheet.
Modified script :
function write() {
var ss = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
var doc = DocumentApp.openById('1ZNqJjSJo1wkD3eaCRTY64g98hYEY77D4MDU6XpvA4MI');
var body = doc.getBody();
// Modified script
var text = doc.getBody().getText();
var result = [];
var r = /(\W|^)GSS\d{2}H(\W|$)/g;
while ((res = r.exec(text)) !== null) { // or while (res = r.exec(text)) {
result.push([res[0]]);
}
ss.getRange(ss.getLastRow() + 1, 1, result.length, 1).setValues(result);
}
If this was not what you want, I'm sorry. At that time, could you please provide the sample input and output you need? I would like to modify my answer.