/*
    This is text analysis the javascript way
    This script splits a string by its words and checks for doubles
    */
main();
function main() {
	// create doc, get page, add text frame
	var doc = app.documents.add();
	var page = doc.pages[0];
	var docpref = doc.documentPreferences; // these are the prefs
	// some values
	var pw = 200;
	var ph = 200;
	// set the doc size
	docpref.pageWidth = pw;
	docpref.pageHeight = ph;
	// make a textframe
	var tf = page.textFrames.add({
		geometricBounds: [12.7, 12.7, ph - 12.7, pw - 12.7],
	});

	// add some placeholder text
	tf.contents = TextFrameContents.PLACEHOLDER_TEXT;
	// et the content of the textFrame
	var content_string = tf.contents;
	// now we split that string into an array
	var splitted_string_arr = content_string.split(" ");
	// the function compress returns an array of object like this
	// [({value:"Miu", count:1}), ({value:"sidet;", count:1}), ({value:"num", count:6})]
	var result = compressArray(splitted_string_arr);

	alert("\n" + result.toSource());
}

/*
    Array compress function found here
    http://ryanbosinger.com/blog/2011/javascript-count-duplicates-in-an-array/
    by ryanbosinger
    */
function compressArray(original) {
	var compressed = [];
	// make a copy of the input array
	var copy = original.slice(0);

	// first loop goes over every element
	for (var i = 0; i < original.length; i++) {
		var myCount = 0;
		// loop over every element in the copy and see if it's the same
		for (var w = 0; w < copy.length; w++) {
			if (original[i] == copy[w]) {
				// increase amount of times duplicate is found
				myCount++;
				// sets item to undefined
				delete copy[w];
			}
		}
		// if the counter is higher than 0 do something
		if (myCount > 0) {
			var a = {}; // create an object called a
			a.value = original[i]; // add the text of the word
			a.count = myCount; // add the count
			compressed.push(a); // push into the return array
		}
	}

	return compressed;
}