CandP.js

// constructors and prototypes
// can probably ignore this, it definitely works and has been tested


function CSVFile(fileName) {
    this.fileName = fileName;
};

CSVFile.prototype.getFilePath = function() {

    return inputFolder + "/" + this.fileName + ".csv";
};


CSVFile.prototype.append = function(input) {
    this.write(input, "a"); // append to file
};

text position.js

var doc = app.activeDocument,
    mainParentContainer = doc.layers.getByName("parent").pageItems,
    CSV = new CSVFile("Sass vars"),
    inputFolder = Folder.selectDialog(),
    canvasWidthHeight = [doc.width, doc.height, "", "", "", "Window"],
    symbolPattern = "[child] ", // child but parent of symbols
    allParentsOfSymbols = getArrayOfItemsWithNameUnder(symbolPattern, mainParentContainer),
    iCount =  doc.symbolItems.length,
    dateTime = getTodaysDate(),
    dest = undefined,
    dest,
    win;

function getAllTextItems(){
    app.coordinateSystem = CoordinateSystem.ARTBOARDCOORDINATESYSTEM;
    var doc = app.activeDocument;
    for(var j = 0; j < doc.textFrames.length; j++){
         var currentTextItem = doc.textFrames[j],
             font = currentTextItem.textRange.characterAttributes.textFont.name,
             style = currentTextItem.textRange.characterAttributes.textFont,
             alignment = currentTextItem.paragraphs[0].paragraphAttributes.justification,
             fontSize= currentTextItem.textRange.characterAttributes.size,
             contents = currentTextItem.contents,
             myColor = Math.round(app.activeDocument.textFrames[j].textRange.characterAttributes.fillColor.red)+" "+Math.round(app.activeDocument.textFrames[j].textRange.characterAttributes.fillColor.green)+" "+Math.round(app.activeDocument.textFrames[j].textRange.characterAttributes.fillColor.blue),           
             alignment = alignment.toString(),
             alignment = alignment.replace('Justification.','');
            
        //temporarly render text to get position, then remove
        
        var temporaryText = currentTextItem.duplicate().createOutline(),
            left = Math.round(temporaryText.visibleBounds[0]),
            top = Math.abs(Math.round(temporaryText.visibleBounds[1])),
            right = Math.round(temporaryText.visibleBounds[2]),
            bottom = Math.abs(Math.round(temporaryText.visibleBounds[3]));
        temporaryText.remove();
        
        // loop through all pageItem containers 
        for(var i = 0; i < allParentsOfSymbols.length; i++){
            var container = allParentsOfSymbols[i],
                containerVB = container.visibleBounds,
                containerLeft = containerVB[0],
                containerTop = Math.abs(Math.round(containerVB[1])),
                containerRight = containerVB[2],
                containerBottom = Math.abs(Math.round(containerVB[3]));

            if(textIsIn(currentTextItem, container)) {
                var relativeBottom = containerTop-bottom;
                if(alignment == "LEFT") { var leftCenterRight = left-containerLeft; }
                if(alignment == "CENTER") { 
                    var width = right-left,
                        textCenter = width/2+left,
                        leftCenterRight = textCenter-containerLeft; 
                }
                if(alignment == "RIGHT") { var leftCenterRight = containerRight-right; } 
                CSV.append(["null","null", Math.abs(relativeBottom), leftCenterRight, contents, makeWebsafe(container.name.replace(symbolPattern, "")),  "text", myColor , fontSize, alignment,font, style, getTodaysDate()+"\n"]);
            }
        }
    }
}getAllTextItems();



function textIsIn(textChild, parentPageItem){

    var textVB = textChild.visibleBounds,
        textLeft = textVB[0],
        textTop = Math.abs(textVB[1]),
        textRight = textVB[2],
        textBottom= Math.abs(textVB[3]);
        
    var parentVB = parentPageItem.visibleBounds,
        parentLeft = parentVB[0],
        parentTop = Math.abs(parentVB[1]),
        parentRight = parentVB[2],
        parentBottom = Math.abs(parentVB[3]);
 
    //return true if child is in parent

    return textLeft >= parentLeft &&  textRight <= parentRight && 
           textBottom <= parentBottom  &&  textTop >= parentTop;
}