Split PDF based on content, and save into different pdfs with custom file name

Hello. I'm a beginner in javascript, and I have adobe acrobat X pro.

I want to be able to search for a specific string within the pdf, and then save the sequence of numbers that come after that string for my file name.

For example, the text would look like "EA 224400" . I would search for the string EA, and then save 224400 as a different variable that would later be used for the file name. This sort of text is found multiple times in my pdf on different pages. Therefore, I want to be able to search for EA, save the number sequence after EA, split document at that point, saving the pages from current page (typically 5, though not always) up to page before next instance of "EA", then save an individual pdf for each number sequence using the number sequence for the pdf file name.

I found a different discussion that had almost the exact same concept that I wanted (Split large pdf on repeated text pattern, and save new pdf with custom filename ), however, the only difference is that I want to search for "EA" in the document rather than the user already knowing the location of "EA".

This is the code that I tried to use based off of the other forum, but it has a syntax error

var numSeq="";

var finalpage=0;

for (var p = 0; p < this.numPages; p++) {

    for(var n = 0; n<this.getPageNumWords(p); n++{

       if(this.getPageNthWord(p,n)=="EA"){

            numSeq=this.getPageNthWord(p,n+1)

            finalpage=p;

            break;

       }

    }

    for(var p2=p+1; p2<this.numPages; p2++){

        for(var n2=0; n2<this.getPageNumWords(p2); n2++){

            if(this.getPageNthWord(p2,n2)=="EA"){

                this.extractPages({

                    nStart: p,

                    nEnd: p2-1,

                    cPath: numSeq+".pdf"});

                break;        

            }

        }

       console.println("Extracted " + numSeq + " pp " + p + " to " + p2)

       break;

    }

}

this.extractPages({

    nStart: finalpage,

    nEnd: this.numPages - 1,

    cPath: numSeq + ".pdf"

});

console.println("Extracted" + numSeq + " pp " + finalpage + " to " + (this.numPages - 1))