fangliao-houtai/node_modules/mime-match/index.js

var wildcard = require('wildcard');
var reMimePartSplit = /[\/\+\.]/;

/**
  # mime-match

  A simple function to checker whether a target mime type matches a mime-type
  pattern (e.g. image/jpeg matches image/jpeg OR image/*).

  ## Example Usage

  <<< example.js

**/
module.exports = function(target, pattern) {
  function test(pattern) {
    var result = wildcard(pattern, target, reMimePartSplit);

    // ensure that we have a valid mime type (should have two parts)
    return result && result.length >= 2;
  }

  return pattern ? test(pattern.split(';')[0]) : test;
};