�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` module.exports = function bufferIndexOf(buff, search, offset, encoding){ if (!Buffer.isBuffer(buff)) { throw TypeError('buffer is not a buffer'); } // allow optional offset when providing an encoding if (encoding === undefined && typeof offset === 'string') { encoding = offset; offset = undefined; } if (typeof search === 'string') { search = new Buffer(search, encoding || 'utf8'); } else if (typeof search === 'number' && !isNaN(search)) { search = new Buffer([search]) } else if (!Buffer.isBuffer(search)) { throw TypeError('search is not a bufferable object'); } if (search.length === 0) { return -1; } if (offset === undefined || (typeof offset === 'number' && isNaN(offset))) { offset = 0; } else if (typeof offset !== 'number') { throw TypeError('offset is not a number'); } if (offset < 0) { offset = buff.length + offset } if (offset < 0) { offset = 0; } var m = 0; var s = -1; for (var i = offset; i < buff.length ; ++i) { if(buff[i] != search[m]){ s = -1; // <-- go back // match abc to aabc // 'aabc' // 'aab' // ^ no match // a'abc' // ^ set index here now and look at these again. // 'abc' yay! i -= m-1 m = 0; } if(buff[i] == search[m]) { if(s == -1) { s = i; } ++m; if(m == search.length) { break; } } } if (s > -1 && buff.length - s < search.length) { return -1; } return s; }