vendor.js

/**
 * Contains helpers for working with vendor prefixes.
 *
 * @example
 * const vendor = postcss.vendor
 *
 * @namespace vendor
 */
let vendor = {

  /**
   * Returns the vendor prefix extracted from an input string.
   *
   * @param {string} prop String with or without vendor prefix.
   *
   * @return {string} vendor prefix or empty string
   *
   * @example
   * postcss.vendor.prefix('-moz-tab-size') //=> '-moz-'
   * postcss.vendor.prefix('tab-size')      //=> ''
   */
  prefix (prop) {
    let match = prop.match(/^(-\w+-)/)
    if (match) {
      return match[0]
    }

    return ''
  },

  /**
     * Returns the input string stripped of its vendor prefix.
     *
     * @param {string} prop String with or without vendor prefix.
     *
     * @return {string} String name without vendor prefixes.
     *
     * @example
     * postcss.vendor.unprefixed('-moz-tab-size') //=> 'tab-size'
     */
  unprefixed (prop) {
    return prop.replace(/^-\w+-/, '')
  }

}

module.exports = vendor