// Collection of functions that are useful but non-specific to any particular files

function getBetweenStrings(data, start_string, end_string) {
  const regex = new RegExp(`${escapeRegExp(start_string)}(.*?)${escapeRegExp(end_string)}`, "s");
  const match = data.match(regex);
  return match ? match[1] : undefined;
}

function escapeRegExp(string) {
  return string.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}



function hexToRgb(hex) {
  var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
  return result ? {
    r: parseInt(result[1], 16),
    g: parseInt(result[2], 16),
    b: parseInt(result[3], 16)
  } : null;
}

function rgbToHex(r, g, b) {
  return "#" + ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);
}

module.exports = {
  getBetweenStrings,
  hexToRgb,
  rgbToHex
};