After Effect Expression error (Expected: ;)

Hey, I am currently coding an after effect expression but I get an error at the line 5 . It says ''Expected: ;'' but I checked everything and made no mistake. 
This expression is put directly on the source text property of a text layer.
My code allows to decompose a srt syntax, and to have the live text synchronized on a single text layer.

My code :

text_srt = thisComp.layer("1 00:00:00,500 --> 00:00:02,999 Les codes de couleur du sous-titrage pour les sourds et les malentendants.  2 00:00:03,001 --> 00:00:05,999 Le magenta pour les indications musicales.  3 00:00:06,001 --> 00:00:08,999 Le vert pour les indications ou retranscriptions de langues étrangères.").text.sourceText;
text_separer = text_srt.split('\r');

srtText = text_separer ;    
	for (let i = 0; i < text_separer.length; i++) {

         srtTime = srtText[1].split(" --> ");
         startTimeSrt = srtTime[0];
         endTimeSrt = srtTime[1];

         subtitleText = srtText.slice(2);

         subtitleTime = {
            start: startTimeSrt,
            end: endTimeSrt
        };
         subtitle = {
            time: subtitleTime,
            text: subtitleText[0]
        };
        k = 0;
        while (k == 0) {
            if (srtText[0] == '') {
                srtText.shift();
                k = 1;
            } else {
                srtText.shift();
            }
        }
	 }