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<?php
/**
* Text_Template
*
* Copyright (c) 2009-2012, Sebastian Bergmann <sb@sebastian-bergmann.de>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Sebastian Bergmann nor the names of his
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @category Text
* @package Template
* @author Sebastian Bergmann <sb@sebastian-bergmann.de>
* @copyright 2009-2012 Sebastian Bergmann <sb@sebastian-bergmann.de>
* @license http://www.opensource.org/licenses/BSD-3-Clause The BSD 3-Clause License
* @link http://github.com/sebastianbergmann/php-text-template
* @since File available since Release 1.0.0
*/
/**
* A simple template engine.
*
* @category Text
* @package Template
* @author Sebastian Bergmann <sb@sebastian-bergmann.de>
* @copyright 2009-2012 Sebastian Bergmann <sb@sebastian-bergmann.de>
* @license http://www.opensource.org/licenses/BSD-3-Clause The BSD 3-Clause License
* @version Release: 1.1.4
* @link http://github.com/sebastianbergmann/php-text-template
* @since Class available since Release 1.0.0
*/
class Text_Template
{
/**
* @var string
*/
protected $template = '';
/**
* @var array
*/
protected $values = array();
/**
* Constructor.
*
* @param string $file
* @throws InvalidArgumentException
*/
public function __construct($file = '')
{
$this->setFile($file);
}
/**
* Sets the template file.
*
* @param string $file
* @throws InvalidArgumentException
*/
public function setFile($file)
{
$distFile = $file . '.dist';
if (file_exists($file)) {
$this->template = file_get_contents($file);
}
else if (file_exists($distFile)) {
$this->template = file_get_contents($distFile);
}
else {
throw new InvalidArgumentException(
'Template file could not be loaded.'
);
}
}
/**
* Sets one or more template variables.
*
* @param array $values
* @param boolean $merge
*/
public function setVar(array $values, $merge = TRUE)
{
if (!$merge || empty($this->values)) {
$this->values = $values;
} else {
$this->values = array_merge($this->values, $values);
}
}
/**
* Renders the template and returns the result.
*
* @return string
*/
public function render()
{
$keys = array();
foreach ($this->values as $key => $value) {
$keys[] = '{' . $key . '}';
}
return str_replace($keys, $this->values, $this->template);
}
/**
* Renders the template and writes the result to a file.
*
* @param string $target
*/
public function renderTo($target)
{
$fp = @fopen($target, 'wt');
if ($fp) {
fwrite($fp, $this->render());
fclose($fp);
} else {
$error = error_get_last();
throw new RuntimeException(
sprintf(
'Could not write to %s: %s',
$target,
substr(
$error['message'],
strpos($error['message'], ':') + 2
)
)
);
}
}
}
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