text: /* @flow */
  "use strict";
  
  const hasInterpolation = require("../utils/hasInterpolation");
  /**
   * Check whether a value is standard
   */
  module.exports = function(value /*: string*/) /*: boolean*/ {
    let normalizedValue = value;
  
    // Ignore operators before variables (example -$variable)
    if (/^[-+*/]/.test(value[0])) {
      normalizedValue = normalizedValue.slice(1);
    }
  
    // SCSS variable
    if (normalizedValue[0] === "$") {
      return false;
    }
  
    // Less variable
    if (normalizedValue[0] === "@") {
      return false;
    }
  
    // SCSS or Less interpolation
    if (hasInterpolation(normalizedValue)) {
      return false;
    }
  
    return true;
  };
  