check if portion of paragraph is hyperlinked in Google doc

Question

This is how I select my paragraph in my Google doc

let document = DocumentApp.getActiveDocument().getBody();
let paragraphs = document.getParagraphs();
let paragraph = paragraphs[5];

Now how do I check if there is a URL linked on the portion of the paragraph from index/position start to end?

For example, if the paragraph were

Hello darkness my old friend

then it should return true for the positions 19 to 23 because that portion of text links to stackoverflow.

There is the method paragraph.editAsText().getLinkUrl() but it doesn't take the indices/positions as parameters.

Please help

Answer 1

Try this:

function findURL() {
  var document = DocumentApp.getActiveDocument().getBody();
  var paragraphs = document.getParagraphs();
  var text = paragraphs[0].getText();
  var child = paragraphs[0].getChild(0).asText();
  //Storing words in an array
  var words = text.match(/\S+/g);
  //check if array is empty
  if (words) {
    //iterate each words
    words.forEach(word => {
      //use findtext and getStartOffset to find the start position of string
      //use getLinkUrl(offset) to check if the word has link on it.
      if(child.getLinkUrl(child.findText(word).getStartOffset())){
        //print the position of words that has link.
        //added +1 since the start of count in getStartOffset() is zero.
        Logger.log(child.findText(word).getStartOffset()+1);
      }
    })
  }
}

Example:

Output:

References:

• findText()
• getLinkUrl(offset)