52 lines
1.4 KiB
PHP
52 lines
1.4 KiB
PHP
<?php
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//
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// FPDI - Version 1.5.2
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//
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// Copyright 2004-2014 Setasign - Jan Slabon
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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/**
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* Class FilterASCIIHexDecode
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*/
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class FilterASCIIHexDecode
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{
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/**
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* Converts an ASCII hexadecimal encoded string into it's binary representation.
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*
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* @param string $data The input string
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* @return string
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*/
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public function decode($data)
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{
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$data = preg_replace('/[^0-9A-Fa-f]/', '', rtrim($data, '>'));
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if ((strlen($data) % 2) == 1) {
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$data .= '0';
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}
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return pack('H*', $data);
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}
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/**
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* Converts a string into ASCII hexadecimal representation.
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*
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* @param string $data The input string
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* @param boolean $leaveEOD
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* @return string
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*/
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public function encode($data, $leaveEOD = false)
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{
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return current(unpack('H*', $data)) . ($leaveEOD ? '' : '>');
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}
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} |