* CountingString example

 * by Daniel Shiffman.  

 *

 * Port of Processing Counting Strings example to p5.js

 * http://en.wikipedia.org/wiki/Concordance_(publishing)

 *

 */

​

// A JS object pairs Strings with integers

​

let concordance = {};

​

// The raw array of words

let lines;

let tokens;

let counter = 0;

​

function preload() {

  lines = loadStrings("data/dracula.txt");

}

​

function setup() {

  createCanvas(640, 360);

​

  concordance = {};

​

  // Load file and chop it up

  let allText = join(lines, " ").toLowerCase();

  tokens = allText.split(/[.?!\s]+/);

}

​

function draw() {

  background(0);

  fill(255);

​

  // Look at words one at a time

  if (counter < tokens.length) {

    let s = tokens[counter];

    if (!concordance[s]) {

      concordance[s] = 1;

    } else {

      concordance[s]++;

    }

    counter++;

  }

​

  // x and y will be used to locate each word

  let x = 0;

  let y = 48;

​

​

  let keys = Object.keys(concordance);

  keys.sort((a, b) => concordance[a] - concordance[b]);

  //console.log(keys);

​

  // Look at each word

  for (let word of keys) {

    let count = concordance[word];

​

    // Only display words that appear 3 times

    if (count > 3) {

      // The size is the count

      let fsize = constrain(count, 0, 48);

      textSize(fsize);

      text(word, x, y);

      // Move along the x-axis

      x += textWidth(word + " ");

    }

​

    // If x gets to the end, move y

    if (x > width) {

      x = 0;

      y += 48;

      // If y gets to the end, we're done

      if (y > height) {

        break;

      }

    }

  }

}